{"version":3,"file":"/js/viewer.js","sources":["webpack:////js/viewer.js"],"sourcesContent":["!function(e){function t(r){if(n[r])return n[r].exports;var i=n[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,t),i.l=!0,i.exports}var n={};t.m=e,t.c=n,t.i=function(e){return e},t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,\"a\",n),n},t.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},t.p=\"\",t(t.s=151)}({1:function(e,t,n){var r=n(4).CSG;r.Vector3D.prototype.round=function(){return r.Vector3D.Create(Math.round(this._x),Math.round(this._y),Math.round(this._z))},r.Polygon.createFromPoints=function(e,t,n){for(var i=[],o=0,s=e.length;o<s;o++){var a=e[o];if(r.Vertex.prototype.isPrototypeOf(a))i[o]=a;else{var l=r.Vector3D.Create(a[0],a[1],a[2]),u=new r.Vertex(l);i[o]=u}}return arguments.length<3?new 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e=0;e<this._faces.length;e++){var t=this._faces[e];this.addEdge([Math.min(t[0],t[1]),Math.max(t[0],t[1]),t[2],e]),this.addEdge([Math.min(t[1],t[2]),Math.max(t[1],t[2]),t[0],e]),this.addEdge([Math.min(t[2],t[0]),Math.max(t[2],t[0]),t[1],e])}return this},n.prototype.computeBoundaryEdges=function(){this._boundaryEdges=[],this._hashBoundaryEdges={};for(var e=0;e<this._edges.length;e++){var t=this._edges[e],n=[t[0],t[1]],r=JSON.stringify(n);r in this._hashSharedEdges||r in this._hashBoundaryEdges||(this._hashBoundaryEdges[r]=this._boundaryEdges.length,this._boundaryEdges.push(t))}return this},n.prototype.extractEdges=function(e){var t=[],n=JSON.stringify(e),r=this._hashFaces[n];return t[0]=[Math.min(e[0],e[1]),Math.max(e[0],e[1]),e[2],r],t[1]=[Math.min(e[1],e[2]),Math.max(e[1],e[2]),e[0],r],t[2]=[Math.min(e[2],e[0]),Math.max(e[2],e[0]),e[1],r],t},n.prototype.addFace=function(e,t){var n=JSON.stringify(e);if(n in this._hashFaces)throw new Error(\"face exist?!\");var r=this._faces.length;this._hashFaces[n]=r,this._faces.push(e),this._normals.push(t);var i=this.extractEdges(e);return this.addEdge(i[0]),this.addEdge(i[1]),this.addEdge(i[2]),r},n.prototype.replaceFace=function(e,t){var n=JSON.stringify(e),r=JSON.stringify(t),i=this._hashFaces[n];this._faces[i]=t,delete this._hashFaces[n],this._hashFaces[r]=i;var o=this.extractEdges(e),s=this.extractEdges(t);return this.replaceEdge(o[0],s[0]),this.replaceEdge(o[1],s[1]),this.replaceEdge(o[2],s[2]),i},n.prototype.splitEdge=function(e,t){var n=e[3],r=this._faces[n],i=r.map(function(n){return n==e[1]?t:n}),o=r.map(function(n){return n==e[0]?t:n});this.replaceFace(r,i),this.addFace(o,this._normals[n])},n.fromCSG=function(e){for(var t=new n,r=e.polygons,i=r.length,o=r.length;o--;){for(var s=[],a=r[o],l=a.plane.normal,u=a.vertices,c=u.length;c--;){var h=u[c],d=[h.pos._x.toFixed(6),h.pos._y.toFixed(6),h.pos._z.toFixed(6)],f=JSON.stringify(d);if(f in t._hashVertices)s.push(t._hashVertices[f]);else{var p=t._vertices.length;t._hashVertices[f]=p,t._vertices.push(d),s.push(p)}}for(var m=s[0],v=s.length-2,g=0;g<v;g++){var y=s[g+2],x=s[g+1];if(y!=x&&y!=m&&x!=m){var b=[y,x,m],w=[l._x.toFixed(6),l._y.toFixed(6),l._z.toFixed(6)];t.addFace(b,w)}}self.response.progress.meshBuilding=(i-o)/i*100,self.postMessage(JSON.stringify(response))}return t.totalBoundaries=t._boundaryEdges,t.fixTJunctions(),t.fixTJunctions(),t.fixTJunctions(),t.boundingBox(),t.volume(),t},n.prototype.toSTL=function(){return this.toAsciiSTL()},n.prototype.toBinarySTL=function(){},n.prototype.toAsciiSTL=function(){for(var e=\"solid mesh.js\\n\",t=this._faces,n=t.length,r=t.length;r--;){var i=t[r],o=this._normals[r],s=this._vertices[i[0]],a=this._vertices[i[1]],l=this._vertices[i[2]];e+=\" facet normal \"+o[0]+\" \"+o[1]+\" \"+o[2]+\"\\n  outer loop\\n\",e+=\"   vertex \"+s[0]+\" \"+s[1]+\" \"+s[2]+\"\\n\",e+=\"   vertex \"+a[0]+\" \"+a[1]+\" \"+a[2]+\"\\n\",e+=\"   vertex \"+l[0]+\" \"+l[1]+\" \"+l[2]+\"\\n\",e+=\"  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r(n(e(i,t),e(o,t)))/2}(p,m,v)}this.Info.volume=Math.round(10*Math.abs(i))/1e4,this.Info.area=Math.round(100*Math.abs(u))/1e4,this.Info.massCenter.x=Math.round(s/i*1e3)/1e3,this.Info.massCenter.y=Math.round(a/i*1e3)/1e3,this.Info.massCenter.z=Math.round(l/i*1e3)/1e3},n.prototype.boundingBox=function(){for(var e=[0,0,0],t=[0,0,0],n=this._vertices,r=n.length;r--;){var i=n[r];e=function(e,t){return[Math.min(e[0],t[0]),Math.min(e[1],t[1]),Math.min(e[2],t[2])]}(e,i),t=function(e,t){return[Math.max(e[0],t[0]),Math.max(e[1],t[1]),Math.max(e[2],t[2])]}(t,i)}this.Info.boundingBox.xMin=e[0],this.Info.boundingBox.xMax=t[0],this.Info.boundingBox.yMin=e[1],this.Info.boundingBox.yMax=t[1],this.Info.boundingBox.zMin=e[2],this.Info.boundingBox.zMax=t[2],this.Info.boundingBox.xDim=Math.round(100*(Math.abs(e[0])+Math.abs(t[0])))/100,this.Info.boundingBox.yDim=Math.round(100*(Math.abs(e[1])+Math.abs(t[1])))/100,this.Info.boundingBox.zDim=Math.round(100*(Math.abs(e[2])+Math.abs(t[2])))/100},n.Clean={},n.prototype.isWithinSegment=function(e,t){function n(e,t){return[e[0]-t[0],e[1]-t[1],e[2]-t[2]]}function r(e,t){return e[0]*t[0]+e[1]*t[1]+e[2]*t[2]}var i=e[0],o=e[1];i=this._vertices[i],o=this._vertices[o],t=this._vertices[t];var s=n(t,i),a=n(o,i),l=r(a,a),u=r(s,a);if(u<=0)return!1;if(l<=u)return!1;var c=u/l,h=function(e,t){return[e[0]*t,e[1]*t,e[2]*t]}(a,c),d=function(e,t){return[Number(e[0])+Number(t[0]),Number(e[1])+Number(t[1]),Number(e[2])+Number(t[2])]}(i,h);return function(e,t){var i=n(e,t);return Math.sqrt(r(i,i))}(t,d)<1e-4},n.prototype.fixTJunctions=function(){var e,t,n,r,i=0;for(var o in this._hashBoundaryEdges){var s=this._hashBoundaryEdges[o],a=this._edges[s];for(var l in this._hashBoundaryEdges){var u=this._hashBoundaryEdges[l],c=this._edges[u];if(a!=c){if(e=this.isWithinSegment(a,c[1]),t=this.isWithinSegment(c,a[1]),n=this.isWithinSegment(a,c[0]),r=this.isWithinSegment(c,a[0]),e){this._tJunctions++,this.splitEdge(a,c[1]);break}if(t){this._tJunctions++,this.splitEdge(c,a[1]);break}if(n){this._tJunctions++,this.splitEdge(a,c[0]);break}if(r){this._tJunctions++,this.splitEdge(c,a[0]);break}}}var h=this._boundaryEdges,d=Math.ceil((this.totalBoundaries-h)/this.totalBoundaries*100);d>i&&(i=d,response.progress.meshValidation=d,postMessage(JSON.stringify(response)))}},e.exports=n},151:function(e,t,n){e.exports=n(58)},2:function(e,t,n){!function(){var n=!0;!function(r){var i=this||(0,eval)(\"this\"),o=i.document,s=i.navigator,a=i.jQuery,l=i.JSON;!function(n){n(e.exports||t)}(function(e){function t(e,t){return!!(null===e||typeof e in d)&&e===t}function u(e){var t=this;return e&&h.utils.objectForEach(e,function(e,n){var r=h.extenders[e];\"function\"==typeof r&&(t=r(t,n)||t)}),t}function c(e,t,n,r){h.bindingHandlers[e]={init:function(e){return h.utils.domData.set(e,y,{}),{controlsDescendantBindings:!0}},update:function(e,i,o,s,a){var 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r=[\"true\",\"false\",\"null\",\"undefined\"],i=/^(?:[$_a-z][$\\w]*|(.+)(\\.\\s*[$_a-z][$\\w]*|\\[.+\\]))$/i,o=RegExp(\"\\\"(?:[^\\\"\\\\\\\\]|\\\\\\\\.)*\\\"|'(?:[^'\\\\\\\\]|\\\\\\\\.)*'|/(?:[^/\\\\\\\\]|\\\\\\\\.)*/w*|[^\\\\s:,/][^,\\\"'{}()/:[\\\\]]*[^\\\\s,\\\"'{}()/:[\\\\]]|[^\\\\s]\",\"g\"),s=/[\\])\"'A-Za-z0-9_$]+$/,a={in:1,return:1,typeof:1},l={};return{bindingRewriteValidators:[],twoWayBindings:l,parseObjectLiteral:t,preProcessBindings:n,keyValueArrayContainsKey:function(e,t){for(var n=0;n<e.length;n++)if(e[n].key==t)return!0;return!1},writeValueToProperty:function(e,t,n,r,i){if(e&&h.isObservable(e))!h.isWriteableObservable(e)||i&&e.peek()===r||e(r);else{var 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h.utils.setDomNodeChildren(t,n)},prepend:function(t,n){e(t)?t.parentNode.insertBefore(n,t.nextSibling):t.firstChild?t.insertBefore(n,t.firstChild):t.appendChild(n)},insertAfter:function(t,n,r){r?e(t)?t.parentNode.insertBefore(n,r.nextSibling):r.nextSibling?t.insertBefore(n,r.nextSibling):t.appendChild(n):h.virtualElements.prepend(t,n)},firstChild:function(n){return e(n)?!n.nextSibling||t(n.nextSibling)?null:n.nextSibling:n.firstChild},nextSibling:function(n){return e(n)&&(n=r(n)),n.nextSibling&&t(n.nextSibling)?null:n.nextSibling},hasBindingValue:e,virtualNodeBindingValue:function(e){var t=(s?e.text:e.nodeValue).match(a);return t?t[1]:null},normaliseVirtualElementDomStructure:function(e){if(u[h.utils.tagNameLower(e)]){var t=e.firstChild;if(t)do{if(1===t.nodeType){var n=i(t);if(n)for(var 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null!=e.getAttribute(\"data-bind\");case 8:return h.virtualElements.hasBindingValue(e);default:return!1}},getBindings:function(e,t){var n=this.getBindingsString(e,t);return n?this.parseBindingsString(n,t,e):null},getBindingAccessors:function(e,t){var n=this.getBindingsString(e,t);return n?this.parseBindingsString(n,t,e,{valueAccessors:!0}):null},getBindingsString:function(e,t){switch(e.nodeType){case 1:return e.getAttribute(\"data-bind\");case 8:return h.virtualElements.virtualNodeBindingValue(e);default:return null}},parseBindingsString:function(t,n,r,i){try{return e(t,this.bindingCache,i)(n,r)}catch(e){throw e.message=\"Unable to parse bindings.\\nBindings value: \"+t+\"\\nMessage: \"+e.message,e}}}),h.bindingProvider.instance=new h.bindingProvider}(),h.exportSymbol(\"bindingProvider\",h.bindingProvider),function(){function e(e){return function(){return e}}function t(e){return e()}function n(e){return h.utils.objectMap(h.dependencyDetection.ignore(e),function(t,n){return function(){return e()[n]}})}function o(t,r,i){return\"function\"==typeof t?n(t.bind(null,r,i)):h.utils.objectMap(t,e)}function s(e,t){return n(this.getBindings.bind(this,e,t))}function a(e){if(!h.virtualElements.allowedBindings[e])throw new Error(\"The binding '\"+e+\"' cannot be used with virtual elements\")}function l(e,t,n){var r,i=h.virtualElements.firstChild(t),o=h.bindingProvider.instance,s=o.preprocessNode;if(s){for(;r=i;)i=h.virtualElements.nextSibling(r),s.call(o,r);i=h.virtualElements.firstChild(t)}for(;r=i;)i=h.virtualElements.nextSibling(r),u(e,r,n)}function u(e,t,n){var r=!0,i=1===t.nodeType;i&&h.virtualElements.normaliseVirtualElementDomStructure(t),(i&&n||h.bindingProvider.instance.nodeHasBindings(t))&&(r=d(t,null,e,n).shouldBindDescendants),r&&!p[h.utils.tagNameLower(t)]&&l(e,t,!i)}function c(e){var t=[],n={},r=[];return h.utils.objectForEach(e,function i(o){if(!n[o]){var s=h.getBindingHandler(o);s&&(s.after&&(r.push(o),h.utils.arrayForEach(s.after,function(t){if(e[t]){if(-1!==h.utils.arrayIndexOf(r,t))throw Error(\"Cannot combine the following bindings, because they have a cyclic dependency: \"+r.join(\", \"));i(t)}}),r.pop()),t.push({key:o,handler:s})),n[o]=!0}}),t}function d(e,n,i,o){function l(){return h.utils.objectMap(v?v():d,t)}var u=h.utils.domData.get(e,m);if(!n){if(u)throw Error(\"You cannot apply bindings multiple times to the same element.\");h.utils.domData.set(e,m,!0)}!u&&o&&h.storedBindingContextForNode(e,i);var d;if(n&&\"function\"!=typeof n)d=n;else{var f=h.bindingProvider.instance,p=f.getBindingAccessors||s;if(n||i._subscribable){var v=h.dependentObservable(function(){return d=n?n(i,e):p.call(f,e,i),d&&i._subscribable&&i._subscribable(),d},null,{disposeWhenNodeIsRemoved:e});d&&v.isActive()||(v=null)}else d=h.dependencyDetection.ignore(p,f,[e,i])}var g;if(d){var y=v?function(e){return function(){return t(v()[e])}}:function(e){return d[e]};l.get=function(e){return d[e]&&t(y(e))},l.has=function(e){return e in d};var x=c(d);h.utils.arrayForEach(x,function(t){var n=t.handler.init,o=t.handler.update,s=t.key;8===e.nodeType&&a(s);try{\"function\"==typeof n&&h.dependencyDetection.ignore(function(){var t=n(e,y(s),l,i.$data,i);if(t&&t.controlsDescendantBindings){if(g!==r)throw new Error(\"Multiple bindings (\"+g+\" and \"+s+\") are trying to control descendant bindings of the same element. You cannot use these bindings together on the same element.\");g=s}}),\"function\"==typeof o&&h.dependentObservable(function(){o(e,y(s),l,i.$data,i)},null,{disposeWhenNodeIsRemoved:e})}catch(e){throw e.message='Unable to process binding \"'+s+\": \"+d[s]+'\"\\nMessage: '+e.message,e}})}return{shouldBindDescendants:g===r}}function f(e){return e&&e instanceof h.bindingContext?e:new h.bindingContext(e)}h.bindingHandlers={};var p={script:!0};h.getBindingHandler=function(e){return h.bindingHandlers[e]},h.bindingContext=function(e,t,n,i){function o(){var r=u?e():e;return t?(t._subscribable&&t._subscribable(),h.utils.extend(l,t),c&&(l._subscribable=c)):(l.$parents=[],l.$root=r,l.ko=h),l.$rawData=e,l.$data=r,n&&(l[n]=r),i&&i(l,t,r),l.$data}function s(){return a&&!h.utils.anyDomNodeIsAttachedToDocument(a)}var a,l=this,u=\"function\"==typeof 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1===e.nodeType&&h.virtualElements.normaliseVirtualElementDomStructure(e),d(e,t,f(n),!0)},h.applyBindingsToNode=function(e,t,n){var r=f(n);return h.applyBindingAccessorsToNode(e,o(t,r,e),r)},h.applyBindingsToDescendants=function(e,t){1!==t.nodeType&&8!==t.nodeType||l(f(e),t,!0)},h.applyBindings=function(e,t){if(t&&1!==t.nodeType&&8!==t.nodeType)throw new Error(\"ko.applyBindings: first parameter should be your view model; second parameter should be a DOM node\");t=t||i.document.body,u(f(e),t,!0)},h.contextFor=function(e){switch(e.nodeType){case 1:case 8:var t=h.storedBindingContextForNode(e);if(t)return t;if(e.parentNode)return h.contextFor(e.parentNode)}return r},h.dataFor=function(e){var t=h.contextFor(e);return t?t.$data:r},h.exportSymbol(\"bindingHandlers\",h.bindingHandlers),h.exportSymbol(\"applyBindings\",h.applyBindings),h.exportSymbol(\"applyBindingsToDescendants\",h.applyBindingsToDescendants),h.exportSymbol(\"applyBindingAccessorsToNode\",h.applyBindingAccessorsToNode),h.exportSymbol(\"applyBindingsToNode\",h.applyBindingsToNode),h.exportSymbol(\"contextFor\",h.contextFor),h.exportSymbol(\"dataFor\",h.dataFor)}();var g={class:\"className\",for:\"htmlFor\"};h.bindingHandlers.attr={update:function(e,t,n){var i=h.utils.unwrapObservable(t())||{};h.utils.objectForEach(i,function(t,n){n=h.utils.unwrapObservable(n);var i=!1===n||null===n||n===r;i&&e.removeAttribute(t),h.utils.ieVersion<=8&&t in g?(t=g[t],i?e.removeAttribute(t):e[t]=n):i||e.setAttribute(t,n.toString()),\"name\"===t&&h.utils.setElementName(e,i?\"\":n.toString())})}},function(){h.bindingHandlers.checked={after:[\"value\",\"attr\"],init:function(e,t,n){function i(){return n.has(\"checkedValue\")?h.utils.unwrapObservable(n.get(\"checkedValue\")):e.value}function o(){var r=e.checked,o=d?i():r;if(f&&(!l||r)){var s=h.dependencyDetection.ignore(t);u?c!==o?(r&&(h.utils.addOrRemoveItem(s,o,!0),h.utils.addOrRemoveItem(s,c,!1)),c=o):h.utils.addOrRemoveItem(s,o,r):h.expressionRewriting.writeValueToProperty(s,n,\"checked\",o,!0)}}function s(){var n=h.utils.unwrapObservable(t());e.checked=u?h.utils.arrayIndexOf(n,i())>=0:a?n:i()===n}var a=\"checkbox\"==e.type,l=\"radio\"==e.type;if(a||l){var u=a&&h.utils.unwrapObservable(t())instanceof 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n=h.utils.unwrapObservable(t());n&&e.disabled?e.removeAttribute(\"disabled\"):n||e.disabled||(e.disabled=!0)}},h.bindingHandlers.disable={update:function(e,t){h.bindingHandlers.enable.update(e,function(){return!h.utils.unwrapObservable(t())})}},h.bindingHandlers.event={init:function(e,t,n,r,i){var o=t()||{};h.utils.objectForEach(o,function(o){\"string\"==typeof o&&h.utils.registerEventHandler(e,o,function(e){var s,a=t()[o];if(a){try{var l=h.utils.makeArray(arguments);r=i.$data,l.unshift(r),s=a.apply(r,l)}finally{!0!==s&&(e.preventDefault?e.preventDefault():e.returnValue=!1)}!1!==n.get(o+\"Bubble\")||(e.cancelBubble=!0,e.stopPropagation&&e.stopPropagation())}})})}},h.bindingHandlers.foreach={makeTemplateValueAccessor:function(e){return function(){var t=e(),n=h.utils.peekObservable(t);return n&&\"number\"!=typeof n.length?(h.utils.unwrapObservable(t),{foreach:n.data,as:n.as,includeDestroyed:n.includeDestroyed,afterAdd:n.afterAdd,beforeRemove:n.beforeRemove,afterRender:n.afterRender,beforeMove:n.beforeMove,afterMove:n.afterMove,templateEngine:h.nativeTemplateEngine.instance}):{foreach:t,templateEngine:h.nativeTemplateEngine.instance}}},init:function(e,t,n,r,i){return h.bindingHandlers.template.init(e,h.bindingHandlers.foreach.makeTemplateValueAccessor(t))},update:function(e,t,n,r,i){return h.bindingHandlers.template.update(e,h.bindingHandlers.foreach.makeTemplateValueAccessor(t),n,r,i)}},h.expressionRewriting.bindingRewriteValidators.foreach=!1,h.virtualElements.allowedBindings.foreach=!0;h.bindingHandlers.hasfocus={init:function(e,t,n){var r=function(r){e.__ko_hasfocusUpdating=!0;var i=e.ownerDocument;if(\"activeElement\"in i){var o;try{o=i.activeElement}catch(e){o=i.body}r=o===e}var 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t=this.getBounds(),n=e.getBounds();return!(t[1].x<n[0].x)&&(!(t[0].x>n[1].x)&&(!(t[1].y<n[0].y)&&(!(t[0].y>n[1].y)&&(!(t[1].z<n[0].z)&&!(t[0].z>n[1].z)))))},cutByPlane:function(e){if(0===this.polygons.length)return new s;for(var t=e.normal.times(e.w),n=0,r=0,i=this.polygons.length;r<i;r++)for(var o=this.polygons[r],a=0,l=o.vertices.length;a<l;a++){var u=o.vertices[a],c=u.pos.distanceToSquared(t);c>n&&(n=c)}n=Math.sqrt(n),n*=1.01;var h=[],d=new s.OrthoNormalBasis(e);h[0]=new s.Vertex(d.to3D(new s.Vector2D(n,-n))),h[1]=new s.Vertex(d.to3D(new s.Vector2D(-n,-n))),h[2]=new s.Vertex(d.to3D(new s.Vector2D(-n,n))),h[3]=new s.Vertex(d.to3D(new s.Vector2D(n,n)));var o=new s.Polygon(h,null,e.flipped()),f=o.extrude(e.normal.times(-n)),p=this.intersect(f);return p.properties=this.properties,p},connectTo:function(e,t,n,r){var i=e.getTransformationTo(t,n,r);return this.transform(i)},setShared:function(e){for(var t=[],n=0,r=this.polygons.length;n<r;n++){var i=this.polygons[n];t[n]=new 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y=m.vertices[v],x=y.getTag(),V=i[x];_[T++]=V}var b=m.plane.getTag(),C=a[b];S[l]=C;var w=m.shared.getTag(),O=h[w];E[l]=O}for(var N=0,v=0,g=o.length;v<g;v++){var y=o[v],A=y.pos;M[N++]=A._x,M[N++]=A._y,M[N++]=A._z}for(var z=0,v=0,g=u.length;v<g;v++){var m=u[v],B=m.normal;P[z++]=B._x,P[z++]=B._y,P[z++]=B._z,P[z++]=m.w}return{class:\"CSG\",numPolygons:t,numVerticesPerPolygon:D,polygonPlaneIndexes:S,polygonSharedIndexes:E,polygonVertices:_,vertexData:M,planeData:P,shared:c}},toPointCloud:function(e){var t=this.reTesselated(),n=new s,r={};t.polygons.map(function(e){e.vertices.map(function(e){r[e.getTag()]=e.pos})});for(var i in r){var o=r[i],a=s.cube({center:o,radius:e});n=n.unionSub(a,!1,!1)}return n=n.reTesselated()},getTransformationToFlatLying:function(){if(0===this.polygons.length)return new s.Matrix4x4;var e=this.canonicalized(),t={};e.polygons.map(function(e){t[e.plane.getTag()]=e.plane});var n,r=new s.Vector3D(1,0,0),i=new s.Vector3D(0,1,0),o=new s.Vector3D(0,0,1),a=new s.Connector([0,0,0],[0,0,-1],r),l=new s.Connector([0,0,0],[0,0,-1],i),u=!0,c=0,h=0;for(var d in t){var f,p=t[d],m=p.normal.times(p.w);if(p.normal.cross(r).length()>p.normal.cross(i).length()){var v=new s.Connector(m,p.normal,r);f=v.getTransformationTo(a,!1,0)}else{var v=new s.Connector(m,p.normal,i);f=v.getTransformationTo(l,!1,0)}var g=e.transform(f),y=-p.normal.dot(o),x=g.getBounds(),b=x[1].z-x[0].z,w=u;if(w||(b<c?w=!0:b==c&&y>h&&(w=!0)),w){var D=[-.5*(x[1].x+x[0].x),-.5*(x[1].y+x[0].y),-x[0].z];f=f.multiply(s.Matrix4x4.translation(D)),c=b,h=y,n=f}u=!1}return n},lieFlat:function(){var e=this.getTransformationToFlatLying();return this.transform(e)},projectToOrthoNormalBasis:function(e){for(var t=[],n=this.polygons,r=0,i=n.length;r<i;r++){var o=n[r],s=o.projectToOrthoNormalBasis(e);s.sides.length>0&&(t[t.length]=s)}return(new a).union(t)},sectionCut:function(e){var t=e.plane,n=e.plane.flipped();t=new s.Plane(t.normal,t.w+1e-4),n=new s.Plane(n.normal,n.w+1e-4);var r=this.cutByPlane(t);return r=r.cutByPlane(n),r.projectToOrthoNormalBasis(e)},fixTJunctions:function(){for(var e=this.canonicalized(),t={},n=0;n<e.polygons.length;n++){var r=e.polygons[n],i=r.vertices.length;if(i>=3)for(var o=r.vertices[0],a=o.getTag(),l=0;l<i;l++){var u=l+1;u==i&&(u=0);var c=r.vertices[u],h=c.getTag(),d=a+\"/\"+h,f=h+\"/\"+a;if(f in t){var p=t[f];p.splice(-1,1),0===p.length&&delete t[f]}else{var m={vertex0:o,vertex1:c,polygonindex:n};d in t?t[d].push(m):t[d]=[m]}o=c,a=h}}var v={},g={},y={},x=!0;for(var d in t)x=!1,y[d]=!0,t[d].map(function(e){var t=e.vertex0.getTag(),n=e.vertex1.getTag();t in v?v[t].push(d):v[t]=[d],n in g?g[n].push(d):g[n]=[d]});if(!x){for(var b=(function(e,n,r){var i=e.getTag(),o=n.getTag();if(i==o)throw new Error(\"Assertion failed\");var s=i+\"/\"+o;if(o+\"/\"+i in t)return w(n,e,null),null;var a={vertex0:e,vertex1:n,polygonindex:r};return s in t?t[s].push(a):t[s]=[a],i in v?v[i].push(s):v[i]=[s],o in g?g[o].push(s):g[o]=[s],s}),w=(function(e,n,r){var i=e.getTag(),o=n.getTag(),s=i+\"/\"+o;if(!(s in t))throw new Error(\"Assertion failed\");for(var a=-1,l=t[s],u=0;u<l.length;u++){var c=l[u];if(c.vertex0==e&&(c.vertex1==n&&(null===r||c.polygonindex==r))){a=u;break}}if(a<0)throw new Error(\"Assertion failed\");if(l.splice(a,1),0===l.length&&delete t[s],(a=v[i].indexOf(s))<0)throw new Error(\"Assertion failed\");if(v[i].splice(a,1),0===v[i].length&&delete v[i],(a=g[o].indexOf(s))<0)throw new Error(\"Assertion failed\");g[o].splice(a,1),0===g[o].length&&delete g[o]}),D=e.polygons.slice(0);;){var x=!0;for(var d in t)x=!1,y[d]=!0;if(x)break;for(var E=!1;;){var _=null;for(var d in y){_=d;break}if(null===_)break;var S=!0;if(_ in t){var M=t[_];if(0===M.length)throw new Error(\"Assertion failed\");for(var m=M[0],P=0;P<2;P++){var T=0===P?m.vertex0:m.vertex1,V=0===P?m.vertex1:m.vertex0,C=T.getTag(),O=V.getTag(),N=[];0===P?C in g&&(N=g[C]):C in v&&(N=v[C]);for(var A=0;A<N.length;A++){var z=N[A],B=t[z][0],F=0===P?B.vertex0:B.vertex1,I=0===P?B.vertex1:B.vertex0,k=F.getTag();if(I.getTag()!=C)throw new Error(\"Assertion failed\");if(k==O){w(T,V,null),w(V,T,null),S=!1,P=2,E=!0;break}var R=T.pos,L=V.pos,j=F.pos,H=j.minus(R),U=L.minus(R).dot(H)/H.dot(H);if(U>0&&U<1){if(R.plus(H.times(U)).distanceToSquared(L)<1e-10){for(var n=B.polygonindex,r=D[n],W=B.vertex1.getTag(),q=-1,G=0;G<r.vertices.length;G++)if(r.vertices[G].getTag()==W){q=G;break}if(q<0)throw new Error(\"Assertion failed\");var X=r.vertices.slice(0);X.splice(q,0,V);var J=new s.Polygon(X,r.shared);D[n]=J,w(B.vertex0,B.vertex1,n);var Y=b(B.vertex0,V,n),Z=b(V,B.vertex1,n);null!==Y&&(y[Y]=!0),null!==Z&&(y[Z]=!0),S=!1,P=2,E=!0;break}}}}}S&&delete y[d]}if(!E)break}var $=s.fromPolygons(D);$.properties=e.properties,$.isCanonicalized=!0,$.isRetesselated=!0,e=$}var x=!0;for(var d in t){x=!1;break}if(!x)throw new Error(\"!sidemapisempty\");return e}},s.parseOption=function(e,t,n){var r=n;return e&&t in e&&(r=e[t]),r},s.parseOptionAs3DVector=function(e,t,n){var r=s.parseOption(e,t,n);return r=new s.Vector3D(r)},s.parseOptionAs2DVector=function(e,t,n){var r=s.parseOption(e,t,n);return r=new s.Vector2D(r)},s.parseOptionAsFloat=function(e,t,n){var r=s.parseOption(e,t,n);if(\"string\"==typeof r&&(r=Number(r)),isNaN(r)||\"number\"!=typeof r)throw new Error(\"Parameter \"+t+\" should be a number\");return r},s.parseOptionAsInt=function(e,t,n){var r=s.parseOption(e,t,n);if(r=Number(Math.floor(r)),isNaN(r))throw new Error(\"Parameter \"+t+\" should be a number\");return r},s.parseOptionAsBool=function(e,t,n){var r=s.parseOption(e,t,n);return\"string\"==typeof r&&(\"true\"==r?r=!0:\"false\"==r?r=!1:0==r&&(r=!1)),r=!!r},s.cube=function(e){var t,n;if(\"corner1\"in(e=e||{})||\"corner2\"in e){if(\"center\"in e||\"radius\"in e)throw new Error(\"cube: should either give a radius and center parameter, or a corner1 and corner2 parameter\");corner1=s.parseOptionAs3DVector(e,\"corner1\",[0,0,0]),corner2=s.parseOptionAs3DVector(e,\"corner2\",[1,1,1]),t=corner1.plus(corner2).times(.5),n=corner2.minus(corner1).times(.5)}else t=s.parseOptionAs3DVector(e,\"center\",[0,0,0]),n=s.parseOptionAs3DVector(e,\"radius\",[1,1,1]);n=n.abs();var r=s.fromPolygons([[[0,4,6,2],[-1,0,0]],[[1,3,7,5],[1,0,0]],[[0,1,5,4],[0,-1,0]],[[2,6,7,3],[0,1,0]],[[0,2,3,1],[0,0,-1]],[[4,5,7,6],[0,0,1]]].map(function(e){var r=e[0].map(function(e){var r=new s.Vector3D(t.x+n.x*(2*!!(1&e)-1),t.y+n.y*(2*!!(2&e)-1),t.z+n.z*(2*!!(4&e)-1));return new s.Vertex(r)});return new s.Polygon(r,null)}));return r.properties.cube=new s.Properties,r.properties.cube.center=new s.Vector3D(t),r.properties.cube.facecenters=[new s.Connector(new s.Vector3D([n.x,0,0]).plus(t),[1,0,0],[0,0,1]),new s.Connector(new s.Vector3D([-n.x,0,0]).plus(t),[-1,0,0],[0,0,1]),new s.Connector(new s.Vector3D([0,n.y,0]).plus(t),[0,1,0],[0,0,1]),new s.Connector(new s.Vector3D([0,-n.y,0]).plus(t),[0,-1,0],[0,0,1]),new s.Connector(new s.Vector3D([0,0,n.z]).plus(t),[0,0,1],[1,0,0]),new s.Connector(new s.Vector3D([0,0,-n.z]).plus(t),[0,0,-1],[1,0,0])],r},s.sphere=function(e){e=e||{};var t,n,r,i=s.parseOptionAs3DVector(e,\"center\",[0,0,0]),o=s.parseOptionAsFloat(e,\"radius\",1),a=s.parseOptionAsInt(e,\"resolution\",s.defaultResolution3D);\"axes\"in e?(t=e.axes[0].unit().times(o),n=e.axes[1].unit().times(o),r=e.axes[2].unit().times(o)):(t=new s.Vector3D([1,0,0]).times(o),n=new s.Vector3D([0,-1,0]).times(o),r=new s.Vector3D([0,0,1]).times(o)),a<4&&(a=4);for(var l,u=Math.round(a/4),c=[],h=0;h<=a;h++){var d=2*Math.PI*h/a,f=t.times(Math.cos(d)).plus(n.times(Math.sin(d)));if(h>0)for(var p,m,v=[],g=0;g<=u;g++){var y=.5*Math.PI*g/u,x=Math.cos(y),b=Math.sin(y);g>0&&(v=[],v.push(new s.Vertex(i.plus(l.times(p).minus(r.times(m))))),v.push(new s.Vertex(i.plus(f.times(p).minus(r.times(m))))),g<u&&v.push(new s.Vertex(i.plus(f.times(x).minus(r.times(b))))),v.push(new s.Vertex(i.plus(l.times(x).minus(r.times(b))))),c.push(new s.Polygon(v)),v=[],v.push(new s.Vertex(i.plus(l.times(p).plus(r.times(m))))),v.push(new s.Vertex(i.plus(f.times(p).plus(r.times(m))))),g<u&&v.push(new s.Vertex(i.plus(f.times(x).plus(r.times(b))))),v.push(new s.Vertex(i.plus(l.times(x).plus(r.times(b))))),v.reverse(),c.push(new s.Polygon(v))),p=x,m=b}l=f}var w=s.fromPolygons(c);return w.properties.sphere=new s.Properties,w.properties.sphere.center=new s.Vector3D(i),w.properties.sphere.facepoint=i.plus(t),w},s.cylinder=function(e){function t(e,t,r){var i=t*Math.PI*2,o=h.times(Math.cos(i)).plus(d.times(Math.sin(i))),a=n.plus(u.times(e)).plus(o.times(r));return new s.Vertex(a)}var n=s.parseOptionAs3DVector(e,\"start\",[0,-1,0]),r=s.parseOptionAs3DVector(e,\"end\",[0,1,0]),i=s.parseOptionAsFloat(e,\"radius\",1),o=s.parseOptionAsFloat(e,\"radiusEnd\",i),a=s.parseOptionAsFloat(e,\"radiusStart\",i);if(o<0||a<0)throw new Error(\"Radius should be non-negative\");if(0===o&&0===a)throw new Error(\"Either radiusStart or radiusEnd should be positive\");for(var l=s.parseOptionAsFloat(e,\"resolution\",s.defaultResolution2D),u=r.minus(n),c=u.unit(),h=c.randomNonParallelVector().unit(),d=h.cross(c).unit(),f=new s.Vertex(n),p=new s.Vertex(r),m=[],v=0;v<l;v++){var g=v/l,y=(v+1)/l;o==a?(m[m.length]=new s.Polygon([f,t(0,g,o),t(0,y,o)]),m[m.length]=new s.Polygon([t(0,y,o),t(0,g,o),t(1,g,o),t(1,y,o)]),m[m.length]=new s.Polygon([p,t(1,y,o),t(1,g,o)])):(a>0&&(m[m.length]=new s.Polygon([f,t(0,g,a),t(0,y,a)]),m[m.length]=new s.Polygon([t(0,g,a),t(1,g,o),t(0,y,a)])),o>0&&(m[m.length]=new s.Polygon([p,t(1,y,o),t(1,g,o)]),m[m.length]=new s.Polygon([t(1,g,o),t(1,y,o),t(0,y,a)])))}var x=s.fromPolygons(m);return x.properties.cylinder=new s.Properties,x.properties.cylinder.start=new s.Connector(n,c.negated(),h),x.properties.cylinder.end=new s.Connector(r,c,h),x.properties.cylinder.facepoint=n.plus(h.times(a)),x},s.roundedCylinder=function(e){var t,n=s.parseOptionAs3DVector(e,\"start\",[0,-1,0]),r=s.parseOptionAs3DVector(e,\"end\",[0,1,0]),i=s.parseOptionAsFloat(e,\"radius\",1),o=r.minus(n);t=Math.abs(o.x)>Math.abs(o.y)?new s.Vector3D(0,1,0):new s.Vector3D(1,0,0);var a=s.parseOptionAs3DVector(e,\"normal\",t),l=s.parseOptionAsFloat(e,\"resolution\",s.defaultResolution3D);l<4&&(l=4);var u=[],c=Math.floor(.25*l);if(o.length()<1e-10)return s.sphere({center:n,radius:i,resolution:l});for(var h,d=o.unit().times(i),f=d.cross(a).unit().times(i),p=f.cross(d).unit().times(i),m=0;m<=l;m++){var v=2*Math.PI*m/l,g=f.times(Math.cos(v)).plus(p.times(Math.sin(v)));if(m>0){var y=[];y.push(new s.Vertex(n.plus(g))),y.push(new s.Vertex(n.plus(h))),y.push(new s.Vertex(r.plus(h))),y.push(new s.Vertex(r.plus(g))),u.push(new s.Polygon(y));for(var x,b,w=0;w<=c;w++){var D=.5*Math.PI*w/c,E=Math.cos(D),_=Math.sin(D);w>0&&(y=[],y.push(new s.Vertex(n.plus(h.times(x).minus(d.times(b))))),y.push(new s.Vertex(n.plus(g.times(x).minus(d.times(b))))),w<c&&y.push(new s.Vertex(n.plus(g.times(E).minus(d.times(_))))),y.push(new s.Vertex(n.plus(h.times(E).minus(d.times(_))))),u.push(new s.Polygon(y)),y=[],y.push(new s.Vertex(r.plus(h.times(x).plus(d.times(b))))),y.push(new s.Vertex(r.plus(g.times(x).plus(d.times(b))))),w<c&&y.push(new s.Vertex(r.plus(g.times(E).plus(d.times(_))))),y.push(new s.Vertex(r.plus(h.times(E).plus(d.times(_))))),y.reverse(),u.push(new s.Polygon(y))),x=E,b=_}}h=g}var S=s.fromPolygons(u),M=d.unit(),P=f.unit();return S.properties.roundedCylinder=new s.Properties,S.properties.roundedCylinder.start=new s.Connector(n,M.negated(),P),S.properties.roundedCylinder.end=new s.Connector(r,M,P),S.properties.roundedCylinder.facepoint=n.plus(f),S},s.roundedCube=function(e){var t,n;if(\"corner1\"in(e=e||{})||\"corner2\"in e){if(\"center\"in e||\"radius\"in e)throw new Error(\"roundedCube: should either give a radius and center parameter, or a corner1 and corner2 parameter\");corner1=s.parseOptionAs3DVector(e,\"corner1\",[0,0,0]),corner2=s.parseOptionAs3DVector(e,\"corner2\",[1,1,1]),t=corner1.plus(corner2).times(.5),n=corner2.minus(corner1).times(.5)}else t=s.parseOptionAs3DVector(e,\"center\",[0,0,0]),n=s.parseOptionAs3DVector(e,\"radius\",[1,1,1]);n=n.abs();var r=s.parseOptionAsFloat(e,\"resolution\",s.defaultResolution3D);r<4&&(r=4);var i=s.parseOptionAsFloat(e,\"roundradius\",.2),o=n;o=o.minus(new s.Vector3D(i));var a=s.cube({center:t,radius:[n.x,o.y,o.z]});a=a.unionSub(s.cube({center:t,radius:[o.x,n.y,o.z]}),!1,!1),a=a.unionSub(s.cube({center:t,radius:[o.x,o.y,n.z]}),!1,!1);for(var l=0;l<2;l++){var u=o.z;1==l&&(u=-u);var c=new s.Vector3D(o.x,o.y,u).plus(t),h=new s.Vector3D(o.x,-o.y,u).plus(t),d=new s.Vector3D(-o.x,-o.y,u).plus(t),f=new s.Vector3D(-o.x,o.y,u).plus(t),p=s.sphere({center:c,radius:i,resolution:r});a=a.unionSub(p,!1,!1),p=s.sphere({center:h,radius:i,resolution:r}),a=a.unionSub(p,!1,!1),p=s.sphere({center:d,radius:i,resolution:r}),a=a.unionSub(p,!1,!1),p=s.sphere({center:f,radius:i,resolution:r}),a=a.unionSub(p,!1,!0);var m=s.cylinder({start:c,end:h,radius:i,resolution:r});if(a=a.unionSub(m,!1,!1),m=s.cylinder({start:h,end:d,radius:i,resolution:r}),a=a.unionSub(m,!1,!1),m=s.cylinder({start:d,end:f,radius:i,resolution:r}),a=a.unionSub(m,!1,!1),m=s.cylinder({start:f,end:c,radius:i,resolution:r}),a=a.unionSub(m,!1,!1),0===l){var v=new s.Vector3D(0,0,-2*u);m=s.cylinder({start:c,end:c.plus(v),radius:i,resolution:r}),a=a.unionSub(m),m=s.cylinder({start:h,end:h.plus(v),radius:i,resolution:r}),a=a.unionSub(m),m=s.cylinder({start:d,end:d.plus(v),radius:i,resolution:r}),a=a.unionSub(m),m=s.cylinder({start:f,end:f.plus(v),radius:i,resolution:r}),a=a.unionSub(m,!1,!0)}}return a=a.reTesselated(),a.properties.roundedCube=new s.Properties,a.properties.roundedCube.center=new s.Vertex(t),a.properties.roundedCube.facecenters=[new s.Connector(new s.Vector3D([n.x,0,0]).plus(t),[1,0,0],[0,0,1]),new s.Connector(new s.Vector3D([-n.x,0,0]).plus(t),[-1,0,0],[0,0,1]),new s.Connector(new s.Vector3D([0,n.y,0]).plus(t),[0,1,0],[0,0,1]),new s.Connector(new s.Vector3D([0,-n.y,0]).plus(t),[0,-1,0],[0,0,1]),new s.Connector(new s.Vector3D([0,0,n.z]).plus(t),[0,0,1],[1,0,0]),new s.Connector(new s.Vector3D([0,0,-n.z]).plus(t),[0,0,-1],[1,0,0])],a},s.IsFloat=function(e){return!isNaN(e)||e===1/0||e===-1/0},s.solve2Linear=function(e,t,n,r,i,o){var s=e*r-t*n,a=1/s,l=i*r-t*o,u=-i*n+e*o;return l*=a,u*=a,[l,u]},s.Vector3D=function(e,t,n){if(3==arguments.length)this._x=parseFloat(e),this._y=parseFloat(t),this._z=parseFloat(n);else if(2==arguments.length)this._x=parseFloat(e),this._y=parseFloat(t),this._z=0;else{var r=!0;if(1==arguments.length)if(\"object\"==(void 0===e?\"undefined\":o(e)))e instanceof s.Vector3D?(this._x=e._x,this._y=e._y,this._z=e._z):e instanceof s.Vector2D?(this._x=e._x,this._y=e._y,this._z=0):e instanceof Array?e.length<2||e.length>3?r=!1:(this._x=parseFloat(e[0]),this._y=parseFloat(e[1]),3==e.length?this._z=parseFloat(e[2]):this._z=0):\"x\"in e&&\"y\"in e?(this._x=parseFloat(e.x),this._y=parseFloat(e.y),this._z=\"z\"in e?parseFloat(e.z):0):r=!1;else{var i=parseFloat(e);this._x=i,this._y=i,this._z=i}else r=!1;if(r&&(s.IsFloat(this._x)&&s.IsFloat(this._y)&&s.IsFloat(this._z)||(r=!1)),!r)throw new Error(\"wrong arguments\")}},s.Vector3D.Create=function(e,t,n){var r=Object.create(s.Vector3D.prototype);return r._x=e,r._y=t,r._z=n,r},s.Vector3D.prototype={get x(){return this._x},get y(){return this._y},get z(){return this._z},set x(e){throw new Error(\"Vector3D is immutable\")},set y(e){throw new Error(\"Vector3D is immutable\")},set z(e){throw new Error(\"Vector3D is immutable\")},clone:function(){return s.Vector3D.Create(this._x,this._y,this._z)},negated:function(){return s.Vector3D.Create(-this._x,-this._y,-this._z)},abs:function(){return s.Vector3D.Create(Math.abs(this._x),Math.abs(this._y),Math.abs(this._z))},plus:function(e){return s.Vector3D.Create(this._x+e._x,this._y+e._y,this._z+e._z)},minus:function(e){return s.Vector3D.Create(this._x-e._x,this._y-e._y,this._z-e._z)},times:function(e){return s.Vector3D.Create(this._x*e,this._y*e,this._z*e)},dividedBy:function(e){return s.Vector3D.Create(this._x/e,this._y/e,this._z/e)},dot:function(e){return this._x*e._x+this._y*e._y+this._z*e._z},lerp:function(e,t){return this.plus(e.minus(this).times(t))},lengthSquared:function(){return this.dot(this)},length:function(){return Math.sqrt(this.lengthSquared())},unit:function(){return this.dividedBy(this.length())},cross:function(e){return s.Vector3D.Create(this._y*e._z-this._z*e._y,this._z*e._x-this._x*e._z,this._x*e._y-this._y*e._x)},distanceTo:function(e){return this.minus(e).length()},distanceToSquared:function(e){return this.minus(e).lengthSquared()},equals:function(e){return this._x==e._x&&this._y==e._y&&this._z==e._z},multiply4x4:function(e){return e.leftMultiply1x3Vector(this)},transform:function(e){return e.leftMultiply1x3Vector(this)},toStlString:function(){return this._x+\" \"+this._y+\" \"+this._z},toAMFString:function(){return\"<x>\"+this._x+\"</x><y>\"+this._y+\"</y><z>\"+this._z+\"</z>\"},toString:function(){return\"(\"+this._x.toFixed(2)+\", \"+this._y.toFixed(2)+\", \"+this._z.toFixed(2)+\")\"},randomNonParallelVector:function(){var e=this.abs();return e._x<=e._y&&e._x<=e._z?s.Vector3D.Create(1,0,0):e._y<=e._x&&e._y<=e._z?s.Vector3D.Create(0,1,0):s.Vector3D.Create(0,0,1)},min:function(e){return s.Vector3D.Create(Math.min(this._x,e._x),Math.min(this._y,e._y),Math.min(this._z,e._z))},max:function(e){return s.Vector3D.Create(Math.max(this._x,e._x),Math.max(this._y,e._y),Math.max(this._z,e._z))}},s.Vertex=function(e){this.pos=e},s.Vertex.fromObject=function(e){var t=new s.Vector3D(e.pos);return new s.Vertex(t)},s.Vertex.prototype={flipped:function(){return this},getTag:function(){var e=this.tag;return e||(e=s.getTag(),this.tag=e),e},interpolate:function(e,t){var n=this.pos.lerp(e.pos,t);return new s.Vertex(n)},transform:function(e){var t=this.pos.multiply4x4(e);return new s.Vertex(t)},toStlString:function(){return\"vertex \"+this.pos.toStlString()+\"\\n\"},toAMFString:function(){return\"<vertex><coordinates>\"+this.pos.toAMFString()+\"</coordinates></vertex>\\n\"},toString:function(){return this.pos.toString()}},s.Plane=function(e,t){this.normal=e,this.w=t},s.Plane.fromObject=function(e){var t=new s.Vector3D(e.normal),n=parseFloat(e.w);return new s.Plane(t,n)},s.Plane.EPSILON=1e-5,s.Plane.fromVector3Ds=function(e,t,n){var r=t.minus(e).cross(n.minus(e)).unit();return new s.Plane(r,r.dot(e))},s.Plane.anyPlaneFromVector3Ds=function(e,t,n){var r=t.minus(e),i=n.minus(e);r.length()<1e-5&&(r=i.randomNonParallelVector()),i.length()<1e-5&&(i=r.randomNonParallelVector());var o=r.cross(i);return o.length()<1e-5&&(i=r.randomNonParallelVector(),o=r.cross(i)),o=o.unit(),new s.Plane(o,o.dot(e))},s.Plane.fromPoints=function(e,t,n){return e=new s.Vector3D(e),t=new s.Vector3D(t),n=new s.Vector3D(n),s.Plane.fromVector3Ds(e,t,n)},s.Plane.fromNormalAndPoint=function(e,t){e=new s.Vector3D(e),t=new s.Vector3D(t),e=e.unit();var n=t.dot(e);return new s.Plane(e,n)},s.Plane.prototype={flipped:function(){return new s.Plane(this.normal.negated(),-this.w)},getTag:function(){var e=this.tag;return e||(e=s.getTag(),this.tag=e),e},equals:function(e){return this.normal.equals(e.normal)&&this.w==e.w},transform:function(e){var t=e.isMirroring(),n=this.normal.randomNonParallelVector(),r=this.normal.cross(n),i=this.normal.cross(r),o=this.normal.times(this.w),a=o.plus(r),l=o.plus(i);o=o.multiply4x4(e),a=a.multiply4x4(e),l=l.multiply4x4(e);var u=s.Plane.fromVector3Ds(o,a,l);return t&&(u=u.flipped()),u},splitPolygon:function(e){var t={type:null,front:null,back:null},n=this.normal,r=e.vertices,i=r.length;if(e.plane.equals(this))t.type=0;else{for(var o=s.Plane.EPSILON,a=this.w,l=!1,u=!1,c=[],h=-o,d=0;d<i;d++){var f=n.dot(r[d].pos)-a,p=f<0;c[d]=p,f>o&&(l=!0),f<h&&(u=!0)}if(l||u)if(u)if(l){t.type=4;for(var m=[],v=[],p=c[0],g=0;g<i;g++){var y=r[g],x=g+1;x>=i&&(x=0);var b=c[x];if(p==b)p?v[v.length]=y:m[m.length]=y;else{var w=y.pos,D=r[x].pos,E=this.splitLineBetweenPoints(w,D),_=new s.Vertex(E);p?(v[v.length]=y,v[v.length]=_,m[m.length]=_):(m[m.length]=y,m[m.length]=_,v[v.length]=_)}p=b}var S=s.Plane.EPSILON*s.Plane.EPSILON;if(v.length>=3)for(var M=v[v.length-1],g=0;g<v.length;g++){var y=v[g];y.pos.distanceToSquared(M.pos)<S&&(v.splice(g,1),g--),M=y}if(m.length>=3)for(var M=m[m.length-1],g=0;g<m.length;g++){var y=m[g];y.pos.distanceToSquared(M.pos)<S&&(m.splice(g,1),g--),M=y}m.length>=3&&(t.front=new s.Polygon(m,e.shared,e.plane)),v.length>=3&&(t.back=new s.Polygon(v,e.shared,e.plane))}else t.type=3;else t.type=2;else{var f=n.dot(e.plane.normal);t.type=f>=0?0:1}}return t},splitLineBetweenPoints:function(e,t){var n=t.minus(e),r=(this.w-this.normal.dot(e))/this.normal.dot(n);return isNaN(r)&&(r=0),r>1&&(r=1),r<0&&(r=0),e.plus(n.times(r))},intersectWithLine:function(e){return e.intersectWithPlane(this)},intersectWithPlane:function(e){return s.Line3D.fromPlanes(this,e)},signedDistanceToPoint:function(e){return this.normal.dot(e)-this.w},toString:function(){return\"[normal: \"+this.normal.toString()+\", w: \"+this.w+\"]\"},mirrorPoint:function(e){var t=this.signedDistanceToPoint(e);return e.minus(this.normal.times(2*t))}},s.Polygon=function(e,t,n){this.vertices=e,t||(t=s.Polygon.defaultShared),this.shared=t,arguments.length>=3?this.plane=n:this.plane=s.Plane.fromVector3Ds(e[0].pos,e[1].pos,e[2].pos)},s.Polygon.fromObject=function(e){for(var t=[],n=0,r=e.vertices.length;n<r;n++)t[n]=s.Vertex.fromObject(e.vertices[n]);var i=s.Polygon.Shared.fromObject(e.shared),o=s.Plane.fromObject(e.plane);return new s.Polygon(t,i,o)},s.Polygon.prototype={checkIfConvex:function(){if(!s.Polygon.verticesConvex(this.vertices,this.plane.normal))throw s.Polygon.verticesConvex(this.vertices,this.plane.normal),new Error(\"Not convex!\")},setColor:function(e,t,n,r){var i=e instanceof Array?e:[e||0,t||0,n||0,isNaN(r)?1:r];return this.shared=new s.Polygon.Shared(i),this},extrude:function(e){var t=[],n=this;n.plane.normal.dot(e)>0&&(n=n.flipped()),t.push(n);for(var r=n.translate(e),i=this.vertices.length,o=0;o<i;o++){var a=[],l=o<i-1?o+1:0;a.push(n.vertices[o].pos),a.push(r.vertices[o].pos),a.push(r.vertices[l].pos),a.push(n.vertices[l].pos);var u=s.Polygon.createFromPoints(a,this.shared);t.push(u)}return r=r.flipped(),t[t.length]=r,s.fromPolygons(t)},translate:function(e){return this.transform(s.Matrix4x4.translation(e))},boundingSphere:function(){if(!this.cachedBoundingSphere){var e=this.boundingBox(),t=e[0].plus(e[1]).times(.5),n=e[1].minus(t),r=n.length();this.cachedBoundingSphere=[t,r]}return this.cachedBoundingSphere},boundingBox:function(){if(!this.cachedBoundingBox){var e,t,n=this.vertices,r=n.length;e=0===r?s.Vector3D.Create(0,0,0):n[0].pos,t=e;for(var i=1;i<r;i++){var o=n[i].pos;e=e.min(o),t=t.max(o)}this.cachedBoundingBox=[e,t]}return this.cachedBoundingBox},flipped:function(){for(var e=[],t=this.vertices,n=0,r=t.length;n<r;n++)e[n]=t[n].flipped();e.reverse();var i=this.plane.flipped();return new s.Polygon(e,this.shared,i)},transform:function(e){for(var t=[],n=this.vertices,r=0,i=n.length;r<i;r++)t[r]=n[r].transform(e);var o=this.plane.transform(e);return e.elements[0]*e.elements[5]*e.elements[10]<0&&t.reverse(),new s.Polygon(t,this.shared,o)},toStlString:function(){var e=\"\";if(this.vertices.length>=3)for(var t=this.vertices[0].toStlString(),n=0;n<this.vertices.length-2;n++)e+=\"facet normal \"+this.plane.normal.toStlString()+\"\\nouter loop\\n\",e+=t,e+=this.vertices[n+1].toStlString(),e+=this.vertices[n+2].toStlString(),e+=\"endloop\\nendfacet\\n\";return e},toString:function(){var e=\"Polygon plane: \"+this.plane.toString()+\"\\n\";return this.vertices.map(function(t){e+=\"  \"+t.toString()+\"\\n\"}),e},projectToOrthoNormalBasis:function(e){for(var t=[],n=0,r=this.vertices.length;n<r;n++)vertex=this.vertices[n],t[n]=e.to2D(vertex.pos);var i=a.fromPointsNoCheck(t),o=i.area();return Math.abs(o)<1e-5?i=new a:o<0&&(i=i.flipped()),i},solidFromSlices:function(e){var t,n=[],r=null,i=null,o=null,a=null,l=2,u=!1,c=null;if(e&&(u=Boolean(e.loop),e.numslices&&(l=e.numslices),e.callback&&(t=e.callback)),!t){var h=new s.Polygon.createFromPoints([[0,0,0],[1,0,0],[1,1,0],[0,1,0]]);t=function(e,t){return 0==e||1==e?h.translate([0,0,e]):null}}for(var d=0,f=l-1;d<=f;d++)if(r=t.call(this,d/f,d)){if(!(r instanceof s.Polygon))throw new Error(\"CSG.Polygon.solidFromSlices callback error: CSG.Polygon expected\");r.checkIfConvex(),i?(null===c&&(c=i.plane.signedDistanceToPoint(r.vertices[0].pos)<0),this._addWalls(n,i,r,c)):o=r,i=r}if(a=r,u){o.vertices.length==a.vertices.length&&o.vertices.every(function(e,t){return e.pos.equals(a.vertices[t].pos)})||this._addWalls(n,a,o,c)}else n.unshift(c?o:o.flipped()),n[n.length]=c?a.flipped():a;return s.fromPolygons(n)},_addWalls:function(e,t,n,r){var o=t.vertices.slice(0),a=n.vertices.slice(0),l=n.shared||null;o[0].pos.equals(o[o.length-1].pos)||(o[o.length]=o[0]),a[0].pos.equals(a[a.length-1].pos)||(a[a.length]=a[0]),r&&(o=o.reverse(),a=a.reverse());for(var u=a.length-1,c=o.length-1,h=u-c,d=h>0,f=h<0,p=[],m=Math.abs(h);m>0;m--)p[p.length]={len:1/0,index:-1};var v;if(f)for(var m=0;m<c;m++){v=o[m].pos.distanceToSquared(o[m+1].pos);for(var g=p.length-1;g>=0;g--)if(p[g].len>v){p[g].len=v,p.index=g;break}}else if(d)for(var m=0;m<u;m++){v=a[m].pos.distanceToSquared(a[m+1].pos);for(var g=p.length-1;g>=0;g--)if(p[g].len>v){p[g].len=v,p.index=g;break}}p.sort(i);for(var y,x,b,w=function(e,t,n,r){return new s.Polygon([e,t,n],r)},D=o[0],E=a[0],_=0,S=0,M=u+c;_+S<M;){if(p.length){if(d&&S==p[0].index){y=a[++S],e[e.length]=w(y,E,D,l),E=y,p.shift();continue}if(f&&_==p[0].index){y=o[++_],e[e.length]=w(E,D,y,l),D=y,p.shift();continue}}x=_<c?E.pos.distanceToSquared(o[_+1].pos):1/0,b=S<u?D.pos.distanceToSquared(a[S+1].pos):1/0,x<=b?(y=o[++_],e[e.length]=w(E,D,y,l),D=y):S<u&&(y=a[++S],e[e.length]=w(y,E,D,l),E=y)}return e}},s.Polygon.verticesConvex=function(e,t){var n=e.length;if(n>2)for(var r=e[n-2].pos,i=e[n-1].pos,o=0;o<n;o++){var a=e[o].pos;if(!s.Polygon.isConvexPoint(r,i,a,t))return!1;r=i,i=a}return!0},s.Polygon.createFromPoints=function(e,t,n){for(var r=[],i=0,o=e.length;i<o;i++){var a=e[i];if(s.Vertex.prototype.isPrototypeOf(a))r[i]=a;else{var l=s.Vector3D.Create(a[0],a[1],a[2]),u=new s.Vertex(l);r[i]=u}}return arguments.length<3?new s.Polygon(r,t):new s.Polygon(r,t,n)},s.Polygon.isConvexPoint=function(e,t,n,r){return t.minus(e).cross(n.minus(t)).dot(r)>=0},s.Polygon.isStrictlyConvexPoint=function(e,t,n,r){return t.minus(e).cross(n.minus(t)).dot(r)>=1e-5},s.Polygon.Shared=function(e){this.color=e},s.Polygon.Shared.fromObject=function(e){return new s.Polygon.Shared(e.color)},s.Polygon.Shared.prototype={getTag:function(){var e=this.tag;return e||(e=s.getTag(),this.tag=e),e},getHash:function(){return this.color?this.color[0]+\"/\"+this.color[1]+\"/\"+this.color[2]+\"/\"+this.color[3]:\"null\"}},s.Polygon.defaultShared=new s.Polygon.Shared(null),s.PolygonTreeNode=function(){this.parent=null,this.children=[],this.polygon=null,this.removed=!1},s.PolygonTreeNode.prototype={addPolygons:function(e){if(!this.isRootNode())throw new Error(\"Assertion failed\");for(var t=0,n=e.length;t<n;t++)this.addChild(e[t])},remove:function(){if(!this.removed){this.removed=!0;var e=this.parent.children,t=e.indexOf(this);if(t<0)throw new Error(\"Assertion failed\");e.splice(t,1),this.parent.recursivelyInvalidatePolygon()}},isRemoved:function(){return this.removed},isRootNode:function(){return!this.parent},invert:function(){if(!this.isRootNode())throw new Error(\"Assertion failed\");this.invertSub()},getPolygon:function(){if(!this.polygon)throw new Error(\"Assertion failed\");return this.polygon},getPolygons:function(e){if(this.polygon)e[e.length]=this.polygon;else{for(var t=[],n=this.children,r=0,i=n.length;r<i;r++)n[r].getPolygons(t);for(var o=0,i=t.length;o<i;o++)e[e.length]=t[o]}},splitByPlane:function(e,t,n,r,i){var o=this.children,s=o.length;if(s>0)for(var a=0;a<s;a++)o[a].splitByPlane(e,t,n,r,i);else{var l=this.polygon;if(l){var u=l.boundingSphere(),c=u[1]+1e-4,h=e.normal,d=u[0],f=h.dot(d)-e.w;if(f>c)r[r.length]=this;else if(f<-c)i[i.length]=this;else{var p=e.splitPolygon(l);switch(p.type){case 0:t[t.length]=this;break;case 1:n[n.length]=this;break;case 2:r[r.length]=this;break;case 3:i[i.length]=this;break;case 4:if(p.front){var m=this.addChild(p.front);r[r.length]=m}if(p.back){var v=this.addChild(p.back);i[i.length]=v}}}}}},addChild:function(e){var t=new s.PolygonTreeNode;t.parent=this,t.polygon=e;var n=this.children;return n[n.length]=t,t},invertSub:function(){var e=this.polygon;e&&(this.polygon=e.flipped());for(var t=this.children,n=0,r=t.length;n<r;n++)t[n].invertSub()},recursivelyInvalidatePolygon:function(){this.polygon&&(this.polygon=null,this.parent&&this.parent.recursivelyInvalidatePolygon())}},s.Tree=function(e){this.polygonTree=new s.PolygonTreeNode,this.rootnode=new s.Node(null),e&&this.addPolygons(e)},s.Tree.prototype={invert:function(){this.polygonTree.invert(),this.rootnode.invert()},clipTo:function(e,t){t=!!t,this.rootnode.clipTo(e,t)},allPolygons:function(){var e=[];return this.polygonTree.getPolygons(e),e},addPolygons:function(e){for(var t=[],n=this.polygonTree,r=0,i=e.length;r<i;r++)t[r]=n.addChild(e[r]);this.rootnode.addPolygonTreeNodes(t)}},s.Node=function(e){this.plane=null,this.front=null,this.back=null,this.polygontreenodes=[],this.parent=e},s.Node.prototype={invert:function(){this.plane&&(this.plane=this.plane.flipped()),this.front&&this.front.invert(),this.back&&this.back.invert();var e=this.front;this.front=this.back,this.back=e},clipPolygons:function(e,t){var n=this.plane;if(n){for(var r=[],i=[],o=t?r:i,s=e.length,a=0;a<s;a++){var l=e[a];l.isRemoved()||l.splitByPlane(n,o,r,i,r)}this.front&&i.length>0&&this.front.clipPolygons(i,t);var u=r.length;if(this.back&&u>0)this.back.clipPolygons(r,t);else for(var a=0;a<u;a++)r[a].remove()}},clipTo:function(e,t){this.polygontreenodes.length>0&&e.rootnode.clipPolygons(this.polygontreenodes,t),this.front&&this.front.clipTo(e,t),this.back&&this.back.clipTo(e,t)},addPolygonTreeNodes:function(e){if(0!==e.length){if(!this.plane){var t=e[0].getPolygon().plane;this.plane=t}for(var n=[],r=[],i=this.plane,o=this.polygontreenodes,a=0,l=e.length;a<l;a++)e[a].splitByPlane(i,o,r,n,r);n.length>0&&(this.front||(this.front=new s.Node(this)),this.front.addPolygonTreeNodes(n)),r.length>0&&(this.back||(this.back=new s.Node(this)),this.back.addPolygonTreeNodes(r))}},getParentPlaneNormals:function(e,t){t>0&&this.parent&&(e[e.length]=this.parent.plane.normal,this.parent.getParentPlaneNormals(e,t-1))}},s.Matrix4x4=function(e){arguments.length>=1?this.elements=e:this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]},s.Matrix4x4.prototype={plus:function(e){for(var t=[],n=0;n<16;n++)t[n]=this.elements[n]+e.elements[n];return new s.Matrix4x4(t)},minus:function(e){for(var t=[],n=0;n<16;n++)t[n]=this.elements[n]-e.elements[n];return new s.Matrix4x4(t)},multiply:function(e){var t=this.elements[0],n=this.elements[1],r=this.elements[2],i=this.elements[3],o=this.elements[4],a=this.elements[5],l=this.elements[6],u=this.elements[7],c=this.elements[8],h=this.elements[9],d=this.elements[10],f=this.elements[11],p=this.elements[12],m=this.elements[13],v=this.elements[14],g=this.elements[15],y=e.elements[0],x=e.elements[1],b=e.elements[2],w=e.elements[3],D=e.elements[4],E=e.elements[5],_=e.elements[6],S=e.elements[7],M=e.elements[8],P=e.elements[9],T=e.elements[10],V=e.elements[11],C=e.elements[12],O=e.elements[13],N=e.elements[14],A=e.elements[15],z=[];return z[0]=t*y+n*D+r*M+i*C,z[1]=t*x+n*E+r*P+i*O,z[2]=t*b+n*_+r*T+i*N,z[3]=t*w+n*S+r*V+i*A,z[4]=o*y+a*D+l*M+u*C,z[5]=o*x+a*E+l*P+u*O,z[6]=o*b+a*_+l*T+u*N,z[7]=o*w+a*S+l*V+u*A,z[8]=c*y+h*D+d*M+f*C,z[9]=c*x+h*E+d*P+f*O,z[10]=c*b+h*_+d*T+f*N,z[11]=c*w+h*S+d*V+f*A,z[12]=p*y+m*D+v*M+g*C,z[13]=p*x+m*E+v*P+g*O,z[14]=p*b+m*_+v*T+g*N,z[15]=p*w+m*S+v*V+g*A,new s.Matrix4x4(z)},clone:function(){for(var e=[],t=0,n=this.elements.length;t<n;t++){var r=this.elements[t];e[t]=r}return new s.Matrix4x4(e)},rightMultiply1x3Vector:function(e){var t=e._x,n=e._y,r=e._z,i=t*this.elements[0]+n*this.elements[1]+r*this.elements[2]+1*this.elements[3],o=t*this.elements[4]+n*this.elements[5]+r*this.elements[6]+1*this.elements[7],a=t*this.elements[8]+n*this.elements[9]+r*this.elements[10]+1*this.elements[11],l=t*this.elements[12]+n*this.elements[13]+r*this.elements[14]+1*this.elements[15];if(1!=l){var u=1/l;i*=u,o*=u,a*=u}return new s.Vector3D(i,o,a)},leftMultiply1x3Vector:function(e){var t=e._x,n=e._y,r=e._z,i=t*this.elements[0]+n*this.elements[4]+r*this.elements[8]+1*this.elements[12],o=t*this.elements[1]+n*this.elements[5]+r*this.elements[9]+1*this.elements[13],a=t*this.elements[2]+n*this.elements[6]+r*this.elements[10]+1*this.elements[14],l=t*this.elements[3]+n*this.elements[7]+r*this.elements[11]+1*this.elements[15];if(1!=l){var u=1/l;i*=u,o*=u,a*=u}return new s.Vector3D(i,o,a)},rightMultiply1x2Vector:function(e){var t=e.x,n=e.y,r=t*this.elements[0]+n*this.elements[1]+0*this.elements[2]+1*this.elements[3],i=t*this.elements[4]+n*this.elements[5]+0*this.elements[6]+1*this.elements[7],o=t*this.elements[8]+n*this.elements[9]+0*this.elements[10]+1*this.elements[11],a=t*this.elements[12]+n*this.elements[13]+0*this.elements[14]+1*this.elements[15];if(1!=a){var l=1/a;r*=l,i*=l,o*=l}return new s.Vector2D(r,i)},leftMultiply1x2Vector:function(e){var t=e.x,n=e.y,r=t*this.elements[0]+n*this.elements[4]+0*this.elements[8]+1*this.elements[12],i=t*this.elements[1]+n*this.elements[5]+0*this.elements[9]+1*this.elements[13],o=t*this.elements[2]+n*this.elements[6]+0*this.elements[10]+1*this.elements[14],a=t*this.elements[3]+n*this.elements[7]+0*this.elements[11]+1*this.elements[15];if(1!=a){var l=1/a;r*=l,i*=l,o*=l}return new s.Vector2D(r,i)},isMirroring:function(){var e=new s.Vector3D(this.elements[0],this.elements[4],this.elements[8]),t=new s.Vector3D(this.elements[1],this.elements[5],this.elements[9]),n=new s.Vector3D(this.elements[2],this.elements[6],this.elements[10]);return e.cross(t).dot(n)<0}},s.Matrix4x4.unity=function(){return new s.Matrix4x4},s.Matrix4x4.rotationX=function(e){var t=e*Math.PI*(1/180),n=Math.cos(t),r=Math.sin(t),i=[1,0,0,0,0,n,r,0,0,-r,n,0,0,0,0,1];return new s.Matrix4x4(i)},s.Matrix4x4.rotationY=function(e){var t=e*Math.PI*(1/180),n=Math.cos(t),r=Math.sin(t),i=[n,0,-r,0,0,1,0,0,r,0,n,0,0,0,0,1];return new s.Matrix4x4(i)},s.Matrix4x4.rotationZ=function(e){var t=e*Math.PI*(1/180),n=Math.cos(t),r=Math.sin(t),i=[n,r,0,0,-r,n,0,0,0,0,1,0,0,0,0,1];return new s.Matrix4x4(i)},s.Matrix4x4.rotation=function(e,t,n){e=new s.Vector3D(e),t=new s.Vector3D(t);var r=s.Plane.fromNormalAndPoint(t,e),i=new s.OrthoNormalBasis(r),o=s.Matrix4x4.translation(e.negated());return o=o.multiply(i.getProjectionMatrix()),o=o.multiply(s.Matrix4x4.rotationZ(n)),o=o.multiply(i.getInverseProjectionMatrix()),o=o.multiply(s.Matrix4x4.translation(e))},s.Matrix4x4.translation=function(e){var t=new s.Vector3D(e),n=[1,0,0,0,0,1,0,0,0,0,1,0,t.x,t.y,t.z,1];return new s.Matrix4x4(n)},s.Matrix4x4.mirroring=function(e){var t=e.normal.x,n=e.normal.y,r=e.normal.z,i=e.w,o=[1-2*t*t,-2*n*t,-2*r*t,0,-2*t*n,1-2*n*n,-2*r*n,0,-2*t*r,-2*n*r,1-2*r*r,0,-2*t*i,-2*n*i,-2*r*i,1];return new s.Matrix4x4(o)},s.Matrix4x4.scaling=function(e){var t=new s.Vector3D(e),n=[t.x,0,0,0,0,t.y,0,0,0,0,t.z,0,0,0,0,1];return new s.Matrix4x4(n)},s.Vector2D=function(e,t){if(2==arguments.length)this._x=parseFloat(e),this._y=parseFloat(t);else{var n=!0;if(1==arguments.length)if(\"object\"==(void 0===e?\"undefined\":o(e)))e instanceof s.Vector2D?(this._x=e._x,this._y=e._y):e instanceof Array?(this._x=parseFloat(e[0]),this._y=parseFloat(e[1])):\"x\"in e&&\"y\"in e?(this._x=parseFloat(e.x),this._y=parseFloat(e.y)):n=!1;else{var r=parseFloat(e);this._x=r,this._y=r}else n=!1;if(n&&(s.IsFloat(this._x)&&s.IsFloat(this._y)||(n=!1)),!n)throw new Error(\"wrong arguments\")}},s.Vector2D.fromAngle=function(e){return s.Vector2D.fromAngleRadians(e)},s.Vector2D.fromAngleDegrees=function(e){var t=Math.PI*e/180;return s.Vector2D.fromAngleRadians(t)},s.Vector2D.fromAngleRadians=function(e){return s.Vector2D.Create(Math.cos(e),Math.sin(e))},s.Vector2D.Create=function(e,t){var n=Object.create(s.Vector2D.prototype);return n._x=e,n._y=t,n},s.Vector2D.prototype={get x(){return this._x},get y(){return this._y},set x(e){throw new Error(\"Vector2D is immutable\")},set y(e){throw new Error(\"Vector2D is immutable\")},toVector3D:function(e){return new s.Vector3D(this._x,this._y,e)},equals:function(e){return this._x==e._x&&this._y==e._y},clone:function(){return s.Vector2D.Create(this._x,this._y)},negated:function(){return s.Vector2D.Create(-this._x,-this._y)},plus:function(e){return s.Vector2D.Create(this._x+e._x,this._y+e._y)},minus:function(e){return s.Vector2D.Create(this._x-e._x,this._y-e._y)},times:function(e){return s.Vector2D.Create(this._x*e,this._y*e)},dividedBy:function(e){return s.Vector2D.Create(this._x/e,this._y/e)},dot:function(e){return this._x*e._x+this._y*e._y},lerp:function(e,t){return this.plus(e.minus(this).times(t))},length:function(){return Math.sqrt(this.dot(this))},distanceTo:function(e){return this.minus(e).length()},distanceToSquared:function(e){return this.minus(e).lengthSquared()},lengthSquared:function(){return this.dot(this)},unit:function(){return this.dividedBy(this.length())},cross:function(e){return this._x*e._y-this._y*e._x},normal:function(){return s.Vector2D.Create(this._y,-this._x)},multiply4x4:function(e){return e.leftMultiply1x2Vector(this)},transform:function(e){return e.leftMultiply1x2Vector(this)},angle:function(){return this.angleRadians()},angleDegrees:function(){return 180*this.angleRadians()/Math.PI},angleRadians:function(){return Math.atan2(this._y,this._x)},min:function(e){return s.Vector2D.Create(Math.min(this._x,e._x),Math.min(this._y,e._y))},max:function(e){return s.Vector2D.Create(Math.max(this._x,e._x),Math.max(this._y,e._y))},toString:function(){return\"(\"+this._x.toFixed(2)+\", \"+this._y.toFixed(2)+\")\"},abs:function(){return s.Vector2D.Create(Math.abs(this._x),Math.abs(this._y))}},s.Line2D=function(e,t){e=new s.Vector2D(e),t=parseFloat(t);var n=e.length();t*=n,e=e.times(1/n),this.normal=e,this.w=t},s.Line2D.fromPoints=function(e,t){e=new s.Vector2D(e),t=new s.Vector2D(t);var n=t.minus(e),r=n.normal().negated().unit(),i=e.dot(r);return new s.Line2D(r,i)},s.Line2D.prototype={reverse:function(){return new s.Line2D(this.normal.negated(),-this.w)},equals:function(e){return e.normal.equals(this.normal)&&e.w==this.w},origin:function(){return this.normal.times(this.w)},direction:function(){return this.normal.normal()},xAtY:function(e){return(this.w-this.normal._y*e)/this.normal.x},absDistanceToPoint:function(e){e=new s.Vector2D(e);var t=e.dot(this.normal);return Math.abs(t-this.w)},intersectWithLine:function(e){var t=s.solve2Linear(this.normal.x,this.normal.y,e.normal.x,e.normal.y,this.w,e.w);return t=new s.Vector2D(t)},transform:function(e){var t=new s.Vector2D(0,0),n=this.normal.times(this.w),r=t.multiply4x4(e),i=this.normal.multiply4x4(e),o=i.minus(r),a=n.multiply4x4(e),l=o.dot(a);return new s.Line2D(o,l)}},s.Line3D=function(e,t){e=new s.Vector3D(e),t=new s.Vector3D(t),this.point=e,this.direction=t.unit()},s.Line3D.fromPoints=function(e,t){e=new s.Vector3D(e),t=new s.Vector3D(t);var n=t.minus(e).unit();return new s.Line3D(e,n)},s.Line3D.fromPlanes=function(e,t){var n=e.normal.cross(t.normal),r=n.length();if(r<1e-10)throw new Error(\"Parallel planes\");n=n.times(1/r);var i,o=Math.abs(n.x),a=Math.abs(n.y),l=Math.abs(n.z);if(o>=a&&o>=l){var u=s.solve2Linear(e.normal.y,e.normal.z,t.normal.y,t.normal.z,e.w,t.w);i=new s.Vector3D(0,u[0],u[1])}else if(a>=o&&a>=l){var u=s.solve2Linear(e.normal.x,e.normal.z,t.normal.x,t.normal.z,e.w,t.w);i=new s.Vector3D(u[0],0,u[1])}else{var u=s.solve2Linear(e.normal.x,e.normal.y,t.normal.x,t.normal.y,e.w,t.w);i=new s.Vector3D(u[0],u[1],0)}return new s.Line3D(i,n)},s.Line3D.prototype={intersectWithPlane:function(e){var t=(e.w-e.normal.dot(this.point))/e.normal.dot(this.direction);return this.point.plus(this.direction.times(t))},clone:function(e){return new s.Line3D(this.point.clone(),this.direction.clone())},reverse:function(){return new s.Line3D(this.point.clone(),this.direction.negated())},transform:function(e){var t=this.point.multiply4x4(e),n=this.point.plus(this.direction),r=n.multiply4x4(e),i=r.minus(t);return new s.Line3D(t,i)},closestPointOnLine:function(e){e=new s.Vector3D(e);var t=e.minus(this.point).dot(this.direction)/this.direction.dot(this.direction);return this.point.plus(this.direction.times(t))},distanceToPoint:function(e){e=new s.Vector3D(e);var t=this.closestPointOnLine(e);return e.minus(t).length()},equals:function(e){return!!this.direction.equals(e.direction)&&!(this.distanceToPoint(e.point)>1e-8)}},s.OrthoNormalBasis=function(e,t){t=arguments.length<2?e.normal.randomNonParallelVector():new s.Vector3D(t),this.v=e.normal.cross(t).unit(),this.u=this.v.cross(e.normal),this.plane=e,this.planeorigin=e.normal.times(e.w)},s.OrthoNormalBasis.GetCartesian=function(e,t){var n,r,i=e+\"/\"+t;if(\"X/Y\"==i)n=[0,0,1],r=[1,0,0];else if(\"Y/-X\"==i)n=[0,0,1],r=[0,1,0];else if(\"-X/-Y\"==i)n=[0,0,1],r=[-1,0,0];else if(\"-Y/X\"==i)n=[0,0,1],r=[0,-1,0];else if(\"-X/Y\"==i)n=[0,0,-1],r=[-1,0,0];else if(\"-Y/-X\"==i)n=[0,0,-1],r=[0,-1,0];else if(\"X/-Y\"==i)n=[0,0,-1],r=[1,0,0];else if(\"Y/X\"==i)n=[0,0,-1],r=[0,1,0];else if(\"X/Z\"==i)n=[0,-1,0],r=[1,0,0];else if(\"Z/-X\"==i)n=[0,-1,0],r=[0,0,1];else if(\"-X/-Z\"==i)n=[0,-1,0],r=[-1,0,0];else if(\"-Z/X\"==i)n=[0,-1,0],r=[0,0,-1];else if(\"-X/Z\"==i)n=[0,1,0],r=[-1,0,0];else if(\"-Z/-X\"==i)n=[0,1,0],r=[0,0,-1];else if(\"X/-Z\"==i)n=[0,1,0],r=[1,0,0];else if(\"Z/X\"==i)n=[0,1,0],r=[0,0,1];else if(\"Y/Z\"==i)n=[1,0,0],r=[0,1,0];else if(\"Z/-Y\"==i)n=[1,0,0],r=[0,0,1];else if(\"-Y/-Z\"==i)n=[1,0,0],r=[0,-1,0];else if(\"-Z/Y\"==i)n=[1,0,0],r=[0,0,-1];else if(\"-Y/Z\"==i)n=[-1,0,0],r=[0,-1,0];else if(\"-Z/-Y\"==i)n=[-1,0,0],r=[0,0,-1];else if(\"Y/-Z\"==i)n=[-1,0,0],r=[0,1,0];else{if(\"Z/Y\"!=i)throw new Error(\"CSG.OrthoNormalBasis.GetCartesian: invalid combination of axis identifiers. Should pass two string arguments from [X,Y,Z,-X,-Y,-Z], being two different axes.\");n=[-1,0,0],r=[0,0,1]}return new s.OrthoNormalBasis(new s.Plane(new s.Vector3D(n),0),new s.Vector3D(r))},s.OrthoNormalBasis.Z0Plane=function(){var e=new s.Plane(new s.Vector3D([0,0,1]),0);return new s.OrthoNormalBasis(e,new s.Vector3D([1,0,0]))},s.OrthoNormalBasis.prototype={getProjectionMatrix:function(){return new s.Matrix4x4([this.u.x,this.v.x,this.plane.normal.x,0,this.u.y,this.v.y,this.plane.normal.y,0,this.u.z,this.v.z,this.plane.normal.z,0,0,0,-this.plane.w,1])},getInverseProjectionMatrix:function(){var e=this.plane.normal.times(this.plane.w);return new s.Matrix4x4([this.u.x,this.u.y,this.u.z,0,this.v.x,this.v.y,this.v.z,0,this.plane.normal.x,this.plane.normal.y,this.plane.normal.z,0,e.x,e.y,e.z,1])},to2D:function(e){return new s.Vector2D(e.dot(this.u),e.dot(this.v))},to3D:function(e){return this.planeorigin.plus(this.u.times(e.x)).plus(this.v.times(e.y))},line3Dto2D:function(e){var t=e.point,n=e.direction.plus(t),r=this.to2D(t),i=this.to2D(n);return s.Line2D.fromPoints(r,i)},line2Dto3D:function(e){var t=e.origin(),n=e.direction().plus(t),r=this.to3D(t),i=this.to3D(n);return s.Line3D.fromPoints(r,i)},transform:function(e){var t=this.plane.transform(e),n=this.u.transform(e),r=new s.Vector3D(0,0,0).transform(e),i=n.minus(r);return new s.OrthoNormalBasis(t,i)}},s.interpolateBetween2DPointsForY=function(e,t,n){var r=n-e.y,i=t.y-e.y;i<0&&(r=-r,i=-i);var o;return o=r<=0?0:r>=i?1:i<1e-10?.5:r/i,e.x+o*(t.x-e.x)},s.reTesselateCoplanarPolygons=function(e,t){var i=e.length;if(i>0){for(var o=e[0].plane,a=e[0].shared,l=new s.OrthoNormalBasis(o),u=[],c=[],h={},d={},f={},p=0;p<i;p++){var m=e[p],v=[],g=m.vertices.length,y=-1;if(g>0){for(var x,b,w=0;w<g;w++){var D,E=l.to2D(m.vertices[w].pos),_=Math.floor(E.y*(1/1e-5*10));_ in f?D=f[_]:_+1 in f?D=f[_+1]:_-1 in f?D=f[_-1]:(D=E.y,f[_]=E.y),E=s.Vector2D.Create(E.x,D),v[v.length]=E;var S=E.y;(0===w||S<x)&&(x=S,y=w),(0===w||S>b)&&(b=S,w),S in d||(d[S]={}),d[S][p]=!0}if(x>=b)v=[];else{x in h||(h[x]=[]);var M=h[x];M[M.length]=p}}v.reverse(),y=g-y-1,u[u.length]=v,c[c.length]=y}var P=[];for(var T in d)P[P.length]=T;P.sort(n);for(var V=[],C=[],O=0;O<P.length;O++){for(var N=[],A=P[O],T=Number(A),z=d[A],B=0;B<V.length;++B){var F=V[B],p=F.polygonindex;if(z[p]){for(var v=u[p],g=v.length,I=F.leftvertexindex,k=F.rightvertexindex;;){var R=I+1;if(R>=g&&(R=0),v[R].y!=T)break;I=R}var L=k-1;if(L<0&&(L=g-1),v[L].y==T&&(k=L),I!=F.leftvertexindex&&I==k)V.splice(B,1),--B;else{F.leftvertexindex=I,F.rightvertexindex=k,F.topleft=v[I],F.topright=v[k];var R=I+1;R>=g&&(R=0),F.bottomleft=v[R];var L=k-1;L<0&&(L=g-1),F.bottomright=v[L]}}}var j;if(O>=P.length-1)V=[],j=null;else{j=Number(P[O+1]);var H=.5*(T+j),U=h[A];for(var W in U){for(var p=U[W],v=u[p],g=v.length,q=c[p],G=q;;){var w=G+1;if(w>=g&&(w=0),v[w].y!=T)break;if(w==q)break;G=w}for(var X=q;;){var w=X-1;if(w<0&&(w=g-1),v[w].y!=T)break;if(w==G)break;X=w}var R=G+1;R>=g&&(R=0);var L=X-1;L<0&&(L=g-1);r(V,{polygonindex:p,leftvertexindex:G,rightvertexindex:X,topleft:v[G],topright:v[X],bottomleft:v[R],bottomright:v[L]},function(e,t){var n=s.interpolateBetween2DPointsForY(e.topleft,e.bottomleft,H),r=s.interpolateBetween2DPointsForY(t.topleft,t.bottomleft,H);return n>r?1:n<r?-1:0})}}for(var J in V){var F=V[J],p=F.polygonindex,v=u[p],g=v.length,Y=s.interpolateBetween2DPointsForY(F.topleft,F.bottomleft,T),Z=s.Vector2D.Create(Y,T);Y=s.interpolateBetween2DPointsForY(F.topright,F.bottomright,T);var $=s.Vector2D.Create(Y,T);Y=s.interpolateBetween2DPointsForY(F.topleft,F.bottomleft,j);var K=s.Vector2D.Create(Y,j);Y=s.interpolateBetween2DPointsForY(F.topright,F.bottomright,j);var Q=s.Vector2D.Create(Y,j),ee={topleft:Z,topright:$,bottomleft:K,bottomright:Q,leftline:s.Line2D.fromPoints(Z,K),rightline:s.Line2D.fromPoints(Q,$)};if(N.length>0){var te=N[N.length-1],ne=ee.topleft.distanceTo(te.topright),re=ee.bottomleft.distanceTo(te.bottomright);ne<1e-5&&re<1e-5&&(ee.topleft=te.topleft,ee.leftline=te.leftline,ee.bottomleft=te.bottomleft,N.splice(N.length-1,1))}N[N.length]=ee}if(O>0){for(var ie={},oe={},w=0;w<N.length;w++)for(var se=N[w],ae=0;ae<C.length;ae++)if(!oe[ae]){var le=C[ae];if(le.bottomleft.distanceTo(se.topleft)<1e-5&&le.bottomright.distanceTo(se.topright)<1e-5){oe[ae]=!0;var ne=se.leftline.direction().x-le.leftline.direction().x,re=se.rightline.direction().x-le.rightline.direction().x,ue=Math.abs(ne)<1e-5,ce=Math.abs(re)<1e-5,he=ue||ne>=0,de=ce||re>=0;he&&de&&(se.outpolygon=le.outpolygon,se.leftlinecontinues=ue,se.rightlinecontinues=ce,ie[ae]=!0);break}}for(var ae=0;ae<C.length;ae++)if(!ie[ae]){var le=C[ae];le.outpolygon.rightpoints[le.outpolygon.rightpoints.length]=le.bottomright,le.bottomright.distanceTo(le.bottomleft)>1e-5&&(le.outpolygon.leftpoints[le.outpolygon.leftpoints.length]=le.bottomleft),le.outpolygon.leftpoints.reverse();for(var fe=le.outpolygon.rightpoints.concat(le.outpolygon.leftpoints),pe=[],me=0,ve=fe.length;me<ve;me++){var ge=fe[me],ye=l.to3D(ge),xe=new s.Vertex(ye);pe[me]=xe}var be=new s.Polygon(pe,a,o);t[t.length]=be}}for(var w=0;w<N.length;w++){var se=N[w];se.outpolygon?(se.leftlinecontinues||(se.outpolygon.leftpoints[se.outpolygon.leftpoints.length]=se.topleft),se.rightlinecontinues||(se.outpolygon.rightpoints[se.outpolygon.rightpoints.length]=se.topright)):(se.outpolygon={leftpoints:[],rightpoints:[]},se.outpolygon.leftpoints[se.outpolygon.leftpoints.length]=se.topleft,se.topleft.distanceTo(se.topright)>1e-5&&(se.outpolygon.rightpoints[se.outpolygon.rightpoints.length]=se.topright))}C=N}}},s.fuzzyFactory=function(e,t){this.lookuptable={},this.multiplier=1/t},s.fuzzyFactory.prototype={lookupOrCreate:function(e,t){var n=\"\",r=this.multiplier;if(e.forEach(function(e){var t=Math.round(e*r);n+=t+\"/\"}),n in this.lookuptable)return this.lookuptable[n];for(var i=t(e),o=[],s=0,a=e.length;s<a;s++){var l=Math.floor(e[s]*r),u=l+1;o[s]=[l+\"/\",u+\"/\"]}for(var c=e.length,h=1<<c,d=0;d<h;++d){var f=d;n=\"\";for(var s=0,a=o.length;s<a;s++)n+=o[s][1&f],f>>=1;this.lookuptable[n]=i}return i}},s.fuzzyCSGFactory=function(){this.vertexfactory=new s.fuzzyFactory(3,1e-5),this.planefactory=new s.fuzzyFactory(4,1e-5),this.polygonsharedfactory={}},s.fuzzyCSGFactory.prototype={getPolygonShared:function(e){var t=e.getHash();return t in this.polygonsharedfactory?this.polygonsharedfactory[t]:(this.polygonsharedfactory[t]=e,e)},getVertex:function(e){var t=[e.pos._x,e.pos._y,e.pos._z];return this.vertexfactory.lookupOrCreate(t,function(t){return e})},getPlane:function(e){var t=[e.normal._x,e.normal._y,e.normal._z,e.w];return this.planefactory.lookupOrCreate(t,function(t){return e})},getPolygon:function(e){for(var t=this.getPlane(e.plane),n=this.getPolygonShared(e.shared),r=[],i=0,o=e.vertices.length;i<o;i++)r[i]=this.getVertex(e.vertices[i]);return new s.Polygon(r,n,t)},getCSG:function(e){for(var t=[],n=0,r=e.polygons.length;n<r;n++)t[n]=this.getPolygon(e.polygons[n]);return s.fromPolygons(t)}},s.staticTag=1,s.getTag=function(){return s.staticTag++},s.Properties=function(){},s.Properties.prototype={_transform:function(e){var t=new s.Properties;return s.Properties.transformObj(this,t,e),t},_merge:function(e){var t=new s.Properties;return s.Properties.cloneObj(this,t),s.Properties.addFrom(t,e),t}},s.Properties.transformObj=function(e,t,n){for(var r in e)if(\"_transform\"!=r&&\"_merge\"!=r){var i=e[r],a=i;\"object\"==(void 0===i?\"undefined\":o(i))&&(\"transform\"in i&&\"function\"==typeof i.transform?a=i.transform(n):i instanceof Array?(a=[],s.Properties.transformObj(i,a,n)):i instanceof s.Properties&&(a=new s.Properties,s.Properties.transformObj(i,a,n))),t[r]=a}},s.Properties.cloneObj=function(e,t){for(var n in e)if(\"_transform\"!=n&&\"_merge\"!=n){var r=e[n],i=r;if(\"object\"==(void 0===r?\"undefined\":o(r)))if(r instanceof Array){i=[];for(var a=0,l=r.length;a<l;a++)i[a]=r[a]}else r instanceof s.Properties&&(i=new s.Properties,s.Properties.cloneObj(r,i));t[n]=i}},s.Properties.addFrom=function(e,t){for(var n in t)\"_transform\"!=n&&\"_merge\"!=n&&(n in e&&\"object\"==o(e[n])&&e[n]instanceof s.Properties&&\"object\"==o(t[n])&&t[n]instanceof s.Properties?s.Properties.addFrom(e[n],t[n]):n in e||(e[n]=t[n]))},s.Connector=function(e,t,n){this.point=new s.Vector3D(e),this.axisvector=new s.Vector3D(t).unit(),this.normalvector=new s.Vector3D(n).unit()},s.Connector.prototype={normalized:function(){var e=this.axisvector.unit(),t=this.normalvector.cross(e).unit(),n=e.cross(t);return new s.Connector(this.point,e,n)},transform:function(e){var t=this.point.multiply4x4(e),n=this.point.plus(this.axisvector).multiply4x4(e).minus(t),r=this.point.plus(this.normalvector).multiply4x4(e).minus(t);return new s.Connector(t,n,r)},getTransformationTo:function(e,t,n){t=!!t,n=n?Number(n):0;var r=this.normalized();e=e.normalized();var i=s.Matrix4x4.translation(this.point.negated()),o=s.Plane.anyPlaneFromVector3Ds(new s.Vector3D(0,0,0),r.axisvector,e.axisvector),a=new s.OrthoNormalBasis(o),l=a.to2D(r.axisvector).angle(),u=a.to2D(e.axisvector).angle(),c=180*(u-l)/Math.PI;t&&(c+=180),i=i.multiply(a.getProjectionMatrix()),i=i.multiply(s.Matrix4x4.rotationZ(c)),i=i.multiply(a.getInverseProjectionMatrix());var h=r.transform(i),d=s.Plane.fromNormalAndPoint(e.axisvector,new s.Vector3D(0,0,0)),f=new s.OrthoNormalBasis(d);l=f.to2D(h.normalvector).angle(),u=f.to2D(e.normalvector).angle(),c=180*(u-l)/Math.PI,c+=n,i=i.multiply(f.getProjectionMatrix()),i=i.multiply(s.Matrix4x4.rotationZ(c)),i=i.multiply(f.getInverseProjectionMatrix()),i=i.multiply(s.Matrix4x4.translation(e.point));r.transform(i);return i},axisLine:function(){return new s.Line3D(this.point,this.axisvector)},extend:function(e){var t=this.point.plus(this.axisvector.unit().times(e));return new s.Connector(t,this.axisvector,this.normalvector)}},s.Path2D=function(e,t){t=!!t,e=e||[];var n=null;t&&e.length>0&&(n=new s.Vector2D(e[e.length-1]));var r=[];e.map(function(e){e=new s.Vector2D(e);var t=!1;if(null!==n){t=e.distanceTo(n)<1e-5}t||r.push(e),n=e}),this.points=r,this.closed=t},s.Path2D.arc=function(e){for(var t=s.parseOptionAs2DVector(e,\"center\",0),n=s.parseOptionAsFloat(e,\"radius\",1),r=s.parseOptionAsFloat(e,\"startangle\",0),i=s.parseOptionAsFloat(e,\"endangle\",360),o=s.parseOptionAsFloat(e,\"resolution\",s.defaultResolution2D),a=s.parseOptionAsBool(e,\"maketangent\",!1);i-r>=720;)i-=360;for(;i-r<=-720;)i+=360;var l,u=[],c=Math.abs(i-r);if(c<1e-5)l=s.Vector2D.fromAngle(r/180*Math.PI).times(n),u.push(l.plus(t));else{var h=Math.floor(o*c/360)+1,d=.5*h/c;d>.25&&(d=.25);for(var f=a?h+2:h,p=0;p<=f;p++){var m=p;a&&(m=(p-1)*(h-2*d)/h+d,m<0&&(m=0),m>h&&(m=h));var v=r+m*(i-r)/h;l=s.Vector2D.fromAngle(v/180*Math.PI).times(n),u.push(l.plus(t))}}return new s.Path2D(u,!1)},s.Path2D.prototype={concat:function(e){if(this.closed||e.closed)throw new Error(\"Paths must not be closed\");var t=this.points.concat(e.points);return new s.Path2D(t)},appendPoint:function(e){if(this.closed)throw new Error(\"Path must not be closed\");e=new s.Vector2D(e);var t=this.points.concat([e]);return new s.Path2D(t)},appendPoints:function(e){if(this.closed)throw new Error(\"Path must not be closed\");var t=this.points;return e.forEach(function(e){t.push(new s.Vector2D(e))}),new s.Path2D(t)},close:function(){return new s.Path2D(this.points,!0)},rectangularExtrude:function(e,t,n){return this.expandToCAG(e/2,n).extrude({offset:[0,0,t]})},expandToCAG:function(e,t){var n=[],r=this.points.length,i=0;this.closed&&r>2&&(i=-1);for(var o,s=i;s<r;s++){var l=s;l<0&&(l=r-1);var u=this.points[l],c=new a.Vertex(u);if(s>i){var h=new a.Side(o,c);n.push(h)}o=c}return a.fromSides(n).expandedShell(e,t)},innerToCAG:function(){if(!this.closed)throw new Error(\"The path should be closed!\");return a.fromPoints(this.points)},transform:function(e){var t=this.points.map(function(t){return t.multiply4x4(e)});return new s.Path2D(t,this.closed)},appendBezier:function(e,t){if(arguments.length<2&&(t={}),this.closed)throw new Error(\"Path must not be closed\");if(!(e instanceof Array))throw new Error(\"appendBezier: should pass an array of control points\");if(e.length<1)throw new Error(\"appendBezier: need at least 1 control point\");if(this.points.length<1)throw new Error(\"appendBezier: path must already contain a point (the endpoint of the path is used as the starting point for the bezier curve)\");var n=s.parseOptionAsInt(t,\"resolution\",s.defaultResolution2D);n<4&&(n=4);var r=[],i=[];i.push(this.points[this.points.length-1]);for(var o=0;o<e.length;++o){var a=e[o];if(null===a){if(0!=o)throw new Error(\"appendBezier: null can only be passed as the first control point\");if(e.length<2)throw new Error(\"appendBezier: null can only be passed if there is at least one more control point\");var l;if(\"lastBezierControlPoint\"in this)l=this.lastBezierControlPoint;else{if(this.points.length<2)throw new Error(\"appendBezier: null is passed as a control point but this requires a previous bezier curve or at least two points in the existing path\");l=this.points[this.points.length-2]}a=this.points[this.points.length-1].times(2).minus(l)}else a=new s.Vector2D(a);i.push(a)}for(var u=i.length-1,c=1,o=0;o<=u;++o)o>0&&(c*=o),r.push(c);for(var h=[],o=0;o<=u;++o){var d=r[u]/(r[o]*r[u-o]);h.push(d)}for(var f=function(e){for(var t=1,n=Math.pow(1-e,u),r=1!=e?1/(1-e):1,o=new s.Vector2D(0,0),a=0;a<=u;++a){a==u&&(n=1);var l=h[a]*t*n;o=o.plus(i[a].times(l)),t*=e,n*=r}return o},p=[],m=[],v=u+1,o=0;o<v;++o){var g=o/(v-1),y=f(g);p.push(y),m.push(g)}for(var x=1,b=2*Math.PI/n,w=Math.sin(b);x<p.length-1;){var D=p[x].minus(p[x-1]).unit(),E=p[x+1].minus(p[x]).unit(),_=D.cross(E);if(Math.abs(_)>w){var S=m[x-1],M=m[x+1],P=S+1*(M-S)/3,T=S+2*(M-S)/3,V=f(P),C=f(T);p.splice(x,1,V,C),m.splice(x,1,P,T),x--,x<1&&(x=1)}else++x}p=this.points.concat(p.slice(1));var O=new s.Path2D(p);return O.lastBezierControlPoint=i[i.length-2],O},appendArc:function(e,t){if(arguments.length<2&&(t={}),this.closed)throw new Error(\"Path must not be closed\");if(this.points.length<1)throw new Error(\"appendArc: path must already contain a point (the endpoint of the path is used as the starting point for the arc)\");var n=s.parseOptionAsInt(t,\"resolution\",s.defaultResolution2D);n<4&&(n=4);var r,i;if(\"xradius\"in t||\"yradius\"in t){if(\"radius\"in t)throw new Error(\"Should either give an xradius and yradius parameter, or a radius parameter\");r=s.parseOptionAsFloat(t,\"xradius\",0),i=s.parseOptionAsFloat(t,\"yradius\",0)}else r=s.parseOptionAsFloat(t,\"radius\",0),i=r;var o=s.parseOptionAsFloat(t,\"xaxisrotation\",0),a=s.parseOptionAsBool(t,\"clockwise\",!1),l=s.parseOptionAsBool(t,\"large\",!1),u=this.points[this.points.length-1];e=new s.Vector2D(e);var c=!a,h=[];if(0==r||0==i)h.push(e);else{r=Math.abs(r),i=Math.abs(i);var d=o*Math.PI/180,f=Math.cos(d),p=Math.sin(d),m=u.minus(e).times(.5),v=new s.Vector2D(f*m.x+p*m.y,-p*m.x+f*m.y),g=v.x*v.x/(r*r)+v.y*v.y/(i*i);if(g>1){var y=Math.sqrt(g);r*=y,i*=y}var x=Math.sqrt((r*r*i*i-r*r*v.y*v.y-i*i*v.x*v.x)/(r*r*v.y*v.y+i*i*v.x*v.x));c==l&&(x=-x);var b=new s.Vector2D(r*v.y/i,-i*v.x/r).times(x),w=new s.Vector2D(f*b.x-p*b.y,p*b.x+f*b.y).plus(u.plus(e).times(.5)),D=new s.Vector2D((v.x-b.x)/r,(v.y-b.y)/i),E=new s.Vector2D((-v.x-b.x)/r,(-v.y-b.y)/i),_=D.angleRadians(),S=E.angleRadians(),M=S-_;M%=2*Math.PI,!c&&M>0?M-=2*Math.PI:c&&M<0&&(M+=2*Math.PI);var P=Math.ceil(Math.abs(M)/(2*Math.PI)*n)+1;P<1&&(P=1);for(var T=1;T<=P;T++){var V=_+T/P*M,C=Math.cos(V),O=Math.sin(V),N=new s.Vector2D(f*r*C-p*i*O,p*r*C+f*i*O).plus(w);h.push(N)}}return h=this.points.concat(h),new s.Path2D(h)}},s.addTransformationMethodsToPrototype=function(e){e.mirrored=function(e){return this.transform(s.Matrix4x4.mirroring(e))},e.mirroredX=function(){var e=new s.Plane(s.Vector3D.Create(1,0,0),0);return this.mirrored(e)},e.mirroredY=function(){var e=new s.Plane(s.Vector3D.Create(0,1,0),0);return this.mirrored(e)},e.mirroredZ=function(){var e=new s.Plane(s.Vector3D.Create(0,0,1),0);return this.mirrored(e)},e.translate=function(e){return this.transform(s.Matrix4x4.translation(e))},e.scale=function(e){return this.transform(s.Matrix4x4.scaling(e))},e.rotateX=function(e){return this.transform(s.Matrix4x4.rotationX(e))},e.rotateY=function(e){return this.transform(s.Matrix4x4.rotationY(e))},e.rotateZ=function(e){return this.transform(s.Matrix4x4.rotationZ(e))},e.rotate=function(e,t,n){return this.transform(s.Matrix4x4.rotation(e,t,n))}};var a=function(){this.sides=[]};a.fromSides=function(e){var t=new a;return t.sides=e,t},a.fromPoints=function(e){var t=e.length;if(t<3)throw new Error(\"CAG shape needs at least 3 points\");for(var n=[],r=new s.Vector2D(e[t-1]),i=new a.Vertex(r),o=0,l=e.length;o<l;o++){var u=e[o],c=new s.Vector2D(u),h=new a.Vertex(c),d=new a.Side(i,h);n[o]=d,i=h}var f=a.fromSides(n);if(f.isSelfIntersecting())throw new Error(\"Polygon is self intersecting!\");var p=f.area();if(Math.abs(p)<1e-5)throw new Error(\"Degenerate polygon!\");return p<0&&(f=f.flipped()),f=f.canonicalized()},a.fromPointsNoCheck=function(e){var t=[],n=new s.Vector2D(e[e.length-1]),r=new a.Vertex(n);return e.map(function(e){var n=new s.Vector2D(e),i=new a.Vertex(n),o=new a.Side(r,i);t.push(o),r=i}),a.fromSides(t)},a.fromFakeCSG=function(e){var t=e.polygons.map(function(e){return a.Side.fromFakePolygon(e)});return a.fromSides(t)},a.linesIntersect=function(e,t,n,r){if(t.equals(n)||r.equals(e)){if(r.minus(n).unit().plus(t.minus(e).unit()).length()<1e-5)return!0}else{var i=t.minus(e),o=r.minus(n);if(Math.abs(i.cross(o))<1e-9)return!1;var a=s.solve2Linear(-i.x,o.x,-i.y,o.y,e.x-n.x,e.y-n.y);if(a[0]>1e-6&&a[0]<.999999&&a[1]>1e-5&&a[1]<.999999)return!0}return!1},a.circle=function(e){e=e||{};for(var t,n=s.parseOptionAs2DVector(e,\"center\",[0,0]),r=s.parseOptionAsFloat(e,\"radius\",1),i=s.parseOptionAsInt(e,\"resolution\",s.defaultResolution2D),o=[],l=0;l<=i;l++){var u=2*Math.PI*l/i,c=s.Vector2D.fromAngleRadians(u).times(r).plus(n),h=new a.Vertex(c);l>0&&o.push(new a.Side(t,h)),t=h}return a.fromSides(o)},a.rectangle=function(e){e=e||{};var t,n;if(\"corner1\"in e||\"corner2\"in e){if(\"center\"in e||\"radius\"in e)throw new Error(\"rectangle: should either give a radius and center parameter, or a corner1 and corner2 parameter\");corner1=s.parseOptionAs2DVector(e,\"corner1\",[0,0]),corner2=s.parseOptionAs2DVector(e,\"corner2\",[1,1]),t=corner1.plus(corner2).times(.5),n=corner2.minus(corner1).times(.5)}else t=s.parseOptionAs2DVector(e,\"center\",[0,0]),n=s.parseOptionAs2DVector(e,\"radius\",[1,1]);n=n.abs();var r=new s.Vector2D(n.x,-n.y),i=[t.plus(n),t.plus(r),t.minus(n),t.minus(r)];return a.fromPoints(i)},a.roundedRectangle=function(e){e=e||{};var t,n;if(\"corner1\"in e||\"corner2\"in e){if(\"center\"in e||\"radius\"in e)throw new Error(\"roundedRectangle: should either give a radius and center parameter, or a corner1 and corner2 parameter\");corner1=s.parseOptionAs2DVector(e,\"corner1\",[0,0]),corner2=s.parseOptionAs2DVector(e,\"corner2\",[1,1]),t=corner1.plus(corner2).times(.5),n=corner2.minus(corner1).times(.5)}else t=s.parseOptionAs2DVector(e,\"center\",[0,0]),n=s.parseOptionAs2DVector(e,\"radius\",[1,1]);n=n.abs();var r=s.parseOptionAsFloat(e,\"roundradius\",.2),i=s.parseOptionAsFloat(e,\"resolution\",s.defaultResolution2D),o=Math.min(n.x,n.y);o-=.1,r=Math.min(r,o),r=Math.max(0,r),n=new s.Vector2D(n.x-r,n.y-r);var l=a.rectangle({center:t,radius:n});return r>0&&(l=l.expand(r,i)),l},a.fromCompactBinary=function(e){if(\"CAG\"!=e.class)throw new Error(\"Not a CAG\");for(var t=[],n=e.vertexData,r=n.length/2,i=0,o=0;o<r;o++){var l=n[i++],u=n[i++],c=new s.Vector2D(l,u),h=new a.Vertex(c);t.push(h)}var d=[],f=e.sideVertexIndices.length/2;i=0;for(var p=0;p<f;p++){var m=e.sideVertexIndices[i++],v=e.sideVertexIndices[i++],g=new a.Side(t[m],t[v]);d.push(g)}var y=a.fromSides(d);return y.isCanonicalized=!0,y},a.prototype={toString:function(){var e=\"CAG (\"+this.sides.length+\" sides):\\n\";return this.sides.map(function(t){e+=\"  \"+t.toString()+\"\\n\"}),e},toCSG:function(e,t){var n=this.sides.map(function(n){return n.toPolygon3D(e,t)});return s.fromPolygons(n)},toDebugString1:function(){this.sides.sort(function(e,t){return e.vertex0.pos.x-t.vertex0.pos.x});var e=\"\";return this.sides.map(function(t){e+=\"(\"+t.vertex0.pos.x+\",\"+t.vertex0.pos.y+\") - (\"+t.vertex1.pos.x+\",\"+t.vertex1.pos.y+\")\\n\"}),e},toDebugString:function(){var e=\"CAG.fromSides([\\n\";return this.sides.map(function(t){e+=\"  new CAG.Side(new CAG.Vertex(new CSG.Vector2D(\"+t.vertex0.pos.x+\",\"+t.vertex0.pos.y+\")), new CAG.Vertex(new CSG.Vector2D(\"+t.vertex1.pos.x+\",\"+t.vertex1.pos.y+\"))),\\n\"}),e+=\"]);\\n\"},union:function(e){var t;t=e instanceof Array?e:[e];var n=this.toCSG(-1,1);return t.map(function(e){n=n.unionSub(e.toCSG(-1,1),!1,!1)}),n=n.reTesselated(),n=n.canonicalized(),e=a.fromFakeCSG(n),e.canonicalized()},subtract:function(e){var t;t=e instanceof Array?e:[e];var n=this.toCSG(-1,1);return t.map(function(e){n=n.subtractSub(e.toCSG(-1,1),!1,!1)}),n=n.reTesselated(),n=n.canonicalized(),n=a.fromFakeCSG(n),n=n.canonicalized()},intersect:function(e){var t;t=e instanceof Array?e:[e];var n=this.toCSG(-1,1);return t.map(function(e){n=n.intersectSub(e.toCSG(-1,1),!1,!1)}),n=n.reTesselated(),n=n.canonicalized(),n=a.fromFakeCSG(n),n=n.canonicalized()},transform:function(e){var t=e.isMirroring(),n=this.sides.map(function(t){return t.transform(e)}),r=a.fromSides(n);return t&&(r=r.flipped()),r},area:function(){var e=0;return this.sides.map(function(t){e+=t.vertex0.pos.cross(t.vertex1.pos)}),e*=.5},flipped:function(){for(var e=[],t=0,n=this.sides.length;t<n;t++){var r=this.sides[t];e[t]=r.flipped()}return e.reverse(),a.fromSides(e)},getBounds:function(){var e;e=0===this.sides.length?new s.Vector2D(0,0):this.sides[0].vertex0.pos;for(var t=e,n=0,r=this.sides.length;n<r;n++){var i=this.sides[n];e=e.min(i.vertex0.pos),e=e.min(i.vertex1.pos),t=t.max(i.vertex0.pos),t=t.max(i.vertex1.pos)}return[e,t]},center:function(e){e.length||(e=[e,e]);var t=this.getBounds();return this.translate([e[0]?-(t[1].x-t[0].x)/2-t[0].x:0,e[1]?-(t[1].y-t[0].y)/2-t[0].y:0])},isSelfIntersecting:function(){for(var e=this.sides.length,t=0;t<e;t++)for(var n=this.sides[t],r=t+1;r<e;r++){var i=this.sides[r];if(a.linesIntersect(n.vertex0.pos,n.vertex1.pos,i.vertex0.pos,i.vertex1.pos))return!0}return!1},expandedShell:function(e,t){(t=t||8)<4&&(t=4);var n=[],r={};this.canonicalized().sides.map(function(t){var i=t.vertex1.pos.minus(t.vertex0.pos),o=i.length();if(o>1e-5){i=i.times(1/o);var s=i.normal().times(e),l=[t.vertex1.pos.plus(s),t.vertex1.pos.minus(s),t.vertex0.pos.minus(s),t.vertex0.pos.plus(s)],u=a.fromPoints(l);n.push(u);for(var c=0;c<2;c++){var h=0===c?t.vertex0.pos:t.vertex1.pos,d=0===c?t.vertex1.pos:t.vertex0.pos,f=h.x+\" \"+h.y;f in r||(r[f]=[]),r[f].push({p1:h,p2:d})}}});for(var i in r){var o,l,u=r[i],c=u[0].p1;if(2==u.length){var h=u[0].p2,d=u[1].p2;if(o=h.minus(c).angleDegrees(),l=d.minus(c).angleDegrees(),l<o&&(l+=360),l>=o+360&&(l-=360),l<o+180){var f=l;l=o+360,o=f}o+=90,l-=90}else o=0,l=360;var p=l>o+359.999;if(p&&(o=0,l=360),l>o+1e-5){var m=[];p||m.push(c);var v=Math.round(t*(l-o)/360);v<1&&(v=1);for(var g=0;g<=v;g++){var y=o+g/v*(l-o);g==v&&(y=l);var x=c.plus(s.Vector2D.fromAngleDegrees(y).times(e));(!p||g>0)&&m.push(x)}var b=a.fromPointsNoCheck(m);n.push(b)}}var w=new a;return w=w.union(n)},expand:function(e,t){return this.union(this.expandedShell(e,t))},contract:function(e,t){return this.subtract(this.expandedShell(e,t))},extrudeInOrthonormalBasis:function(e,t){if(!(e instanceof s.OrthoNormalBasis))throw new Error(\"extrudeInPlane: the first parameter should be a CSG.OrthoNormalBasis\");var n=this.extrude({offset:[0,0,t]}).translate([0,0,-t/2]),r=e.getInverseProjectionMatrix();return n=n.transform(r)},extrudeInPlane:function(e,t,n){return this.extrudeInOrthonormalBasis(s.OrthoNormalBasis.GetCartesian(e,t),n)},extrude:function(e){if(0==this.sides.length)return new s;var t=s.parseOptionAs3DVector(e,\"offset\",[0,0,1]),n=s.parseOptionAsFloat(e,\"twistangle\",0),r=s.parseOptionAsInt(e,\"twiststeps\",10);0==n&&(r=1),r<1&&(r=1);for(var i,o,a=[],l=0;l<=r;l++){var u=l/r,c=this,h=n*u;0!=h&&(c=c.rotateZ(h));var d=new s.Vector2D(t.x,t.y).times(u);c=c.translate(d);var f=c.getBounds();f[0]=f[0].minus(new s.Vector2D(1,1)),f[1]=f[1].plus(new s.Vector2D(1,1));var p=t.z*u;if(0==l||l==r){var m=c.toCSG(p-1,p+1),v=s.fromPolygons([new s.Polygon([new s.Vertex(new s.Vector3D(f[0].x,f[0].y,p)),new s.Vertex(new s.Vector3D(f[1].x,f[0].y,p)),new s.Vertex(new s.Vector3D(f[1].x,f[1].y,p)),new s.Vertex(new s.Vector3D(f[0].x,f[1].y,p))])]),g=0==l;t.z<0&&(g=!g),g&&(v=v.inverse()),v=v.intersect(m);for(var y=0,x=v.polygons.length;y<x;y++){var b=v.polygons[y];Math.abs(b.plane.normal.z)>.99&&(a[a.length]=b)}}if(l>0)for(var w=c.sides.length,D=0;D<w;D++){var E=c.sides[D],_=i.sides[D],S=new s.Polygon([new s.Vertex(E.vertex1.pos.toVector3D(p)),new s.Vertex(E.vertex0.pos.toVector3D(p)),new s.Vertex(_.vertex0.pos.toVector3D(o))]),M=new s.Polygon([new s.Vertex(E.vertex1.pos.toVector3D(p)),new s.Vertex(_.vertex0.pos.toVector3D(o)),new s.Vertex(_.vertex1.pos.toVector3D(o))]);t.z<0&&(S=S.flipped(),M=M.flipped()),a[a.length]=S,a[a.length]=M}i=c,o=p}return s.fromPolygons(a)},check:function(){var e=[];this.isSelfIntersecting()&&e.push(\"Self intersects\");var t={};this.sides.map(function(e){function n(e){var n=e.x+\" \"+e.y;n in t||(t[n]=0),t[n]++}n(e.vertex0.pos),n(e.vertex1.pos)});for(var n in t){var r=t[n];1&r&&e.push(\"Uneven number of sides (\"+r+\") for point \"+n)}var i=this.area();if(i<1e-5&&e.push(\"Area is \"+i),e.length>0){var o=\"\";throw e.map(function(e){o+=e+\"\\n\"}),new Error(o)}},canonicalized:function(){if(this.isCanonicalized)return this;var e=new a.fuzzyCAGFactory,t=e.getCAG(this);return t.isCanonicalized=!0,t},toCompactBinary:function(){var e=this.canonicalized(),t=e.sides.length,n={},r=[],i=0,o=new Uint32Array(2*t),s=0;e.sides.map(function(e){[e.vertex0,e.vertex1].map(function(e){var t,a=e.getTag();a in n?t=n[a]:(t=i++,n[a]=t,r.push(e)),o[s++]=t})});var a=new Float64Array(2*i),l=0;return r.map(function(e){var t=e.pos;a[l++]=t._x,a[l++]=t._y}),{class:\"CAG\",sideVertexIndices:o,vertexData:a}},getOutlinePaths:function(){var e=this.canonicalized(),t={},n={};e.sides.map(function(e){var r=e.getTag();t[r]=e;var i=e.vertex0.getTag();i in n||(n[i]=[]),n[i].push(r)});for(var r=[];;){var i=null;for(var o in n){var a=n[o];i=a[0],a.splice(0,1),0===a.length&&delete n[o];break}if(null===i)break;for(var l=[],u=i,c=t[u],h=c.vertex0.getTag();;){l.push(c.vertex0.pos);var d=c.vertex1.getTag();if(d==h)break;if(!(d in n))throw new Error(\"Area is not closed!\");var f=n[d],p=-1;if(1==f.length)p=0;else for(var m=null,v=c.direction().angleDegrees(),g=0;g<f.length;g++){var y=f[g],x=t[y],b=x.direction().angleDegrees(),w=b-v;w<-180&&(w+=360),w>=180&&(w-=360),(p<0||w>m)&&(p=g,m=w)}var D=f[p];f.splice(p,1),0===f.length&&delete n[d],c=t[D]}var E=new s.Path2D(l,!0);r.push(E)}return r},toDxf:function(){var e=this.getOutlinePaths();return a.PathsToDxf(e)}},a.PathsToDxf=function(e){var t=\"999\\nDXF generated by OpenJsCad\\n\";return t+=\"  0\\nSECTION\\n  2\\nHEADER\\n\",t+=\"  0\\nENDSEC\\n\",t+=\"  0\\nSECTION\\n  2\\nTABLES\\n\",t+=\"  0\\nTABLE\\n  2\\nLTYPE\\n  70\\n1\\n\",t+=\"  0\\nLTYPE\\n  2\\nCONTINUOUS\\n  3\\nSolid Line\\n  72\\n65\\n  73\\n0\\n  40\\n0.0\\n\",t+=\"  0\\nENDTAB\\n\",t+=\"  0\\nTABLE\\n  2\\nLAYER\\n  70\\n1\\n\",t+=\"  0\\nLAYER\\n  2\\nOpenJsCad\\n  62\\n7\\n  6\\ncontinuous\\n\",t+=\"  0\\nENDTAB\\n\",t+=\"  0\\nTABLE\\n  2\\nSTYLE\\n  70\\n0\\n  0\\nENDTAB\\n\",t+=\"  0\\nTABLE\\n  2\\nVIEW\\n  70\\n0\\n  0\\nENDTAB\\n\",t+=\"  0\\nENDSEC\\n\",t+=\"  0\\nSECTION\\n  2\\nBLOCKS\\n\",t+=\"  0\\nENDSEC\\n\",t+=\"  0\\nSECTION\\n  2\\nENTITIES\\n\",e.map(function(e){var n=e.points.length+(e.closed?1:0);t+=\"  0\\nLWPOLYLINE\\n  8\\nOpenJsCad\\n  90\\n\"+n+\"\\n  70\\n\"+(e.closed?1:0)+\"\\n\";for(var r=0;r<n;r++){var i=r;i>=e.points.length&&(i-=e.points.length);var o=e.points[i];t+=\" 10\\n\"+o.x+\"\\n 20\\n\"+o.y+\"\\n 30\\n0.0\\n\"}}),t+=\"  0\\nENDSEC\\n  0\\nEOF\\n\",new Blob([t],{type:\"application/dxf\"})},a.Vertex=function(e){this.pos=e},a.Vertex.prototype={toString:function(){return\"(\"+this.pos.x.toFixed(2)+\",\"+this.pos.y.toFixed(2)+\")\"},getTag:function(){var e=this.tag;return e||(e=s.getTag(),this.tag=e),e}},a.Side=function(e,t){if(!(e instanceof a.Vertex))throw new Error(\"Assertion failed\");if(!(t instanceof a.Vertex))throw new Error(\"Assertion failed\");this.vertex0=e,this.vertex1=t},a.Side.fromFakePolygon=function(e){if(4!=e.vertices.length)throw new Error(\"Assertion failed - 1\");for(var t=[],n=[],r=0;r<4;r++){var i=e.vertices[r].pos;if(i.z>=-1.001&&i.z<-.999);else if(!(i.z>=.999&&i.z<1.001))throw new Error(\"Assertion failed - 2\");i.z>0&&(t.push(new s.Vector2D(i.x,i.y)),n.push(r))}if(2!=t.length)throw new Error(\"Assertion failed - 3\");var o,l,u=n[1]-n[0];if(1==u)o=t[1],l=t[0];else{if(3!=u)throw new Error(\"Assertion failed - 4\");o=t[0],l=t[1]}return new a.Side(new a.Vertex(o),new a.Vertex(l))},a.Side.prototype={toString:function(){return this.vertex0+\" -> \"+this.vertex1},toPolygon3D:function(e,t){var n=[new s.Vertex(this.vertex0.pos.toVector3D(e)),new s.Vertex(this.vertex1.pos.toVector3D(e)),new s.Vertex(this.vertex1.pos.toVector3D(t)),new s.Vertex(this.vertex0.pos.toVector3D(t))];return new s.Polygon(n)},transform:function(e){var t=this.vertex0.pos.transform(e),n=this.vertex1.pos.transform(e);return new a.Side(new a.Vertex(t),new a.Vertex(n))},flipped:function(){return new a.Side(this.vertex1,this.vertex0)},direction:function(){return this.vertex1.pos.minus(this.vertex0.pos)},getTag:function(){var e=this.tag;return e||(e=s.getTag(),this.tag=e),e},lengthSquared:function(){var e=this.vertex1.pos.x-this.vertex0.pos.x,t=this.vertex1.pos.y-this.vertex0.pos.y;return e*e+t*t},length:function(){return Math.sqrt(this.lengthSquared())}},a.fuzzyCAGFactory=function(){this.vertexfactory=new s.fuzzyFactory(2,1e-5)},a.fuzzyCAGFactory.prototype={getVertex:function(e){var t=[e.pos._x,e.pos._y];return this.vertexfactory.lookupOrCreate(t,function(t){return e})},getSide:function(e){var t=this.getVertex(e.vertex0),n=this.getVertex(e.vertex1);return new a.Side(t,n)},getCAG:function(e){var t=this,n=e.sides.map(function(e){return t.getSide(e)});return a.fromSides(n)}},s.addTransformationMethodsToPrototype(s.prototype),s.addTransformationMethodsToPrototype(s.Vector2D.prototype),s.addTransformationMethodsToPrototype(s.Vector3D.prototype),s.addTransformationMethodsToPrototype(s.Vertex.prototype),s.addTransformationMethodsToPrototype(s.Plane.prototype),s.addTransformationMethodsToPrototype(s.Polygon.prototype),s.addTransformationMethodsToPrototype(s.Line3D.prototype),s.addTransformationMethodsToPrototype(s.Connector.prototype),s.addTransformationMethodsToPrototype(s.Path2D.prototype),s.addTransformationMethodsToPrototype(s.Line2D.prototype),s.addTransformationMethodsToPrototype(a.prototype),s.addTransformationMethodsToPrototype(a.Side.prototype),s.Polygon2D=function(e){var t=a.fromPoints(e);this.sides=t.sides},s.Polygon2D.prototype=a.prototype,e.exports={CSG:s,CAG:a}},40:function(e,t,n){function r(e){function t(e,t,n){return e.dot(t.cross(n))/6}function n(e,t,n){var r=t.minus(e),i=n.minus(e);return r.cross(i).length()/2}for(var r=e.canonicalized(),s=new o.Mesh({normals:!0,colors:!0}),a=[],l={},u=[],c=[],h=[],d=r.toPolygons(),f=d.length,p=0;p<f;p++){var m=d[p],v=[1,.4,1,1];m.shared&&m.shared.color&&(v=m.shared.color),m.color&&(v=m.color),v.length<4&&v.push(1);for(var g=[],y=0,x=m.vertices.length;y<x;y++){var b,w=m.vertices[y],D=[w.pos.x,w.pos.y,w.pos.z];b=u.length,l[D]=b,u.push(D),c.push(v),g[y]=b}for(var y=2;y<g.length;y++)h.push([g[0],g[y-1],g[y]]);u.length>65e3&&(s.triangles=h,s.vertices=u,s.colors=c,s.computeWireframe(),s.computeNormals(),s.vertices.length&&a.push(s),s=new o.Mesh({normals:!0,colors:!0}),h=[],c=[],u=[])}s.triangles=h,s.vertices=u,s.colors=c,s.computeWireframe(),s.computeNormals();var E=r.getBounds(),_=Math.round(100*(Math.abs(E[0].x)+Math.abs(E[1].x)))/100,S=Math.round(100*(Math.abs(E[0].y)+Math.abs(E[1].y)))/100,M=Math.round(100*(Math.abs(E[0].z)+Math.abs(E[1].z)))/100;s.boundsMm={xDimMm:_,yDimMm:S,zDimMm:M};var P=function(e){for(var r,o=0,s=0,a=0,l=0,u=0,c=0,h=e.triangles.length;c<h;c++){var d=e.triangles[c],f=new i.Vector3D(e.vertices[d[0]]),p=new i.Vector3D(e.vertices[d[1]][0],e.vertices[d[1]][1],e.vertices[d[1]][2]),m=new i.Vector3D(e.vertices[d[2]][0],e.vertices[d[2]][1],e.vertices[d[2]][2]);o+=r=t(f,p,m),s+=(f.x+p.x+m.x)/4*r,a+=(f.y+p.y+m.y)/4*r,l+=(f.z+p.z+m.z)/4*r,u+=n(f,p,m)}return{volume:Math.round(Math.abs(o))/1e3,area:Math.round(10*Math.abs(u))/1e3,xC:Math.round(s/o*1e3)/1e3,yC:Math.round(a/o*1e3)/1e3,zC:Math.round(l/o*1e3)/1e3}}(s);return s.volumeCm3=Math.round(100*P.volume)/100,s.areaCm2=Math.round(100*P.area)/100,s.vertices.length&&a.push(s),a}var i=(n(14),n(1)),o=n(71),s=function(e,t,n,r){var i=this,s=e.parentNode,a=s.getBoundingClientRect();t=a.width,n=a.height,this.animate=!0,this.pause=!1;var l=o.create({preserveDrawingBuffer:!0,canvas:e});this.gl=l,this.angleX=0,this.angleY=150,this.angleZ=180,this.viewpointX=0,this.viewpointY=0,this.viewpointZ=0,this.drawAxes=!1,this.drawGrid=!1,this.drawLines=!0,this.lineOverlay=!1,l.canvas.width=t,l.canvas.height=n,l.viewport(0,0,t,n),l.matrixMode(l.PROJECTION),l.loadIdentity(),l.perspective(45,t/n,.5,1e3),l.matrixMode(l.MODELVIEW),l.blendFunc(l.SRC_ALPHA,l.ONE_MINUS_SRC_ALPHA),l.clearColor(1,1,1,1),l.enable(l.DEPTH_TEST),l.enable(l.CULL_FACE),l.polygonOffset(1,1),this.updateSize=function(r){var o=s.getBoundingClientRect();t=o.width,n=o.height,e.setAttribute(\"width\",t),e.setAttribute(\"height\",n),l.viewport(0,0,t,n),i.onDraw()},l.animate=function(){function e(){if(i.animate&&!i.pause){l=r;var o=(new Date).getTime();l.onupdate&&l.onupdate((o-n)/1e3),l.ondraw&&l.ondraw(),n=o}t(e)}var t=window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||function(e){setTimeout(e,1e3/60)},n=(new Date).getTime(),r=l;e()},this.cancelAnimationFrame=window.cancelAnimationFrame||window.mozCancelAnimationFrame,this.animationOn=function(){i.pause=!1},this.animationOff=function(){i.pause=!0},l.onupdate=function(e){i.angleY-=.5},l.animate(),l.canvas.onmouseenter=function(){i.animate=!1},l.canvas.onmouseout=function(){i.animate=!0},this.animationOn(),this.blackShader=new o.Shader(\"        void main() {          gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;        }      \",\"        void main() {          gl_FragColor = vec4(0.0, 0.0, 0.0, 0.1);        }      \");this.lightingShader=new o.Shader(\"    varying vec3 color;    varying float alpha;    varying vec3 normal;    varying vec3 light;    void main() {      const vec3 lightDir = vec3(1.0, 2.0, 3.0) / 3.741657386773941;      light = lightDir;      color = gl_Color.rgb;      alpha = gl_Color.a;      normal = gl_NormalMatrix * gl_Normal;      gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;    }  \",\"    varying vec3 color;    varying float alpha;    varying vec3 normal;    varying vec3 light;    void main() {      vec3 n = normalize(normal);      float diffuse = max(0.0, dot(light, n));      float specular = pow(max(0.0, -reflect(light, n).z), 10.0) * sqrt(diffuse);      gl_FragColor = vec4(mix(color * (0.3 + 0.7 * diffuse), vec3(1.0), specular), alpha);    }  \");var u=this;l.onmousemove=function(e){u.onMouseMove(e)},l.ondraw=function(){u.onDraw()},window.addEventListener(\"resize\",i.updateSize),this.clear()};s.prototype={setCsg:function(e){this.meshes=r(e),this.onDraw()},clear:function(){this.meshes=[],this.onDraw()},supported:function(){return!!this.gl},ZOOM_MAX:1e3,ZOOM_MIN:10,onZoomChanged:null,plate:!0,fitZoom:function(e){if(e){var 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o[0]=r[0]*i[0]+r[1]*i[4]+r[2]*i[8]+r[3]*i[12],o[1]=r[0]*i[1]+r[1]*i[5]+r[2]*i[9]+r[3]*i[13],o[2]=r[0]*i[2]+r[1]*i[6]+r[2]*i[10]+r[3]*i[14],o[3]=r[0]*i[3]+r[1]*i[7]+r[2]*i[11]+r[3]*i[15],o[4]=r[4]*i[0]+r[5]*i[4]+r[6]*i[8]+r[7]*i[12],o[5]=r[4]*i[1]+r[5]*i[5]+r[6]*i[9]+r[7]*i[13],o[6]=r[4]*i[2]+r[5]*i[6]+r[6]*i[10]+r[7]*i[14],o[7]=r[4]*i[3]+r[5]*i[7]+r[6]*i[11]+r[7]*i[15],o[8]=r[8]*i[0]+r[9]*i[4]+r[10]*i[8]+r[11]*i[12],o[9]=r[8]*i[1]+r[9]*i[5]+r[10]*i[9]+r[11]*i[13],o[10]=r[8]*i[2]+r[9]*i[6]+r[10]*i[10]+r[11]*i[14],o[11]=r[8]*i[3]+r[9]*i[7]+r[10]*i[11]+r[11]*i[15],o[12]=r[12]*i[0]+r[13]*i[4]+r[14]*i[8]+r[15]*i[12],o[13]=r[12]*i[1]+r[13]*i[5]+r[14]*i[9]+r[15]*i[13],o[14]=r[12]*i[2]+r[13]*i[6]+r[14]*i[10]+r[15]*i[14],o[15]=r[12]*i[3]+r[13]*i[7]+r[14]*i[11]+r[15]*i[15],n},g.identity=function(e){e=e||new g;var t=e.m;return t[0]=t[5]=t[10]=t[15]=1,t[1]=t[2]=t[3]=t[4]=t[6]=t[7]=t[8]=t[9]=t[11]=t[12]=t[13]=t[14]=0,e},g.perspective=function(e,t,n,r,i){var o=Math.tan(e*Math.PI/360)*n,s=o*t;return g.frustum(-s,s,-o,o,n,r,i)},g.frustum=function(e,t,n,r,i,o,s){s=s||new g;var a=s.m;return a[0]=2*i/(t-e),a[1]=0,a[2]=(t+e)/(t-e),a[3]=0,a[4]=0,a[5]=2*i/(r-n),a[6]=(r+n)/(r-n),a[7]=0,a[8]=0,a[9]=0,a[10]=-(o+i)/(o-i),a[11]=-2*o*i/(o-i),a[12]=0,a[13]=0,a[14]=-1,a[15]=0,s},g.ortho=function(e,t,n,r,i,o,s){s=s||new g;var a=s.m;return a[0]=2/(t-e),a[1]=0,a[2]=0,a[3]=-(t+e)/(t-e),a[4]=0,a[5]=2/(r-n),a[6]=0,a[7]=-(r+n)/(r-n),a[8]=0,a[9]=0,a[10]=-2/(o-i),a[11]=-(o+i)/(o-i),a[12]=0,a[13]=0,a[14]=0,a[15]=1,s},g.scale=function(e,t,n,r){r=r||new g;var i=r.m;return i[0]=e,i[1]=0,i[2]=0,i[3]=0,i[4]=0,i[5]=t,i[6]=0,i[7]=0,i[8]=0,i[9]=0,i[10]=n,i[11]=0,i[12]=0,i[13]=0,i[14]=0,i[15]=1,r},g.translate=function(e,t,n,r){r=r||new g;var i=r.m;return i[0]=1,i[1]=0,i[2]=0,i[3]=e,i[4]=0,i[5]=1,i[6]=0,i[7]=t,i[8]=0,i[9]=0,i[10]=1,i[11]=n,i[12]=0,i[13]=0,i[14]=0,i[15]=1,r},g.rotate=function(e,t,n,r,i){if(!e||!t&&!n&&!r)return g.identity(i);i=i||new g;var o=i.m,s=Math.sqrt(t*t+n*n+r*r);e*=Math.PI/180,t/=s,n/=s,r/=s;var a=Math.cos(e),l=Math.sin(e),u=1-a;return o[0]=t*t*u+a,o[1]=t*n*u-r*l,o[2]=t*r*u+n*l,o[3]=0,o[4]=n*t*u+r*l,o[5]=n*n*u+a,o[6]=n*r*u-t*l,o[7]=0,o[8]=r*t*u-n*l,o[9]=r*n*u+t*l,o[10]=r*r*u+a,o[11]=0,o[12]=0,o[13]=0,o[14]=0,o[15]=1,i},g.lookAt=function(e,t,n,r,i,s,a,l,u,c){c=c||new g;var h=c.m,d=new o(e,t,n),f=new o(r,i,s),p=new o(a,l,u),m=d.subtract(f).unit(),v=p.cross(m).unit(),y=m.cross(v).unit();return h[0]=v.x,h[1]=v.y,h[2]=v.z,h[3]=-v.dot(d),h[4]=y.x,h[5]=y.y,h[6]=y.z,h[7]=-y.dot(d),h[8]=m.x,h[9]=m.y,h[10]=m.z,h[11]=-m.dot(d),h[12]=0,h[13]=0,h[14]=0,h[15]=1,c},y.prototype={mergeWith:function(e){e.t>0&&e.t<this.t&&(this.t=e.t,this.hit=e.hit,this.normal=e.normal)}},x.prototype={getRayForPixel:function(e,t){e=(e-this.viewport[0])/this.viewport[2],t=1-(t-this.viewport[1])/this.viewport[3];var n=o.lerp(this.ray00,this.ray10,e),r=o.lerp(this.ray01,this.ray11,e);return o.lerp(n,r,t).unit()}},x.hitTestBox=function(e,t,n,r){var i=n.subtract(e).divide(t),s=r.subtract(e).divide(t),a=o.min(i,s),l=o.max(i,s),u=a.max(),c=l.min();if(u>0&&u<c){var h=e.add(t.multiply(u));return n=n.add(1e-6),r=r.subtract(1e-6),new y(u,h,new o((h.x>r.x)-(h.x<n.x),(h.y>r.y)-(h.y<n.y),(h.z>r.z)-(h.z<n.z)))}return null},x.hitTestSphere=function(e,t,n,r){var i=e.subtract(n),o=t.dot(t),s=2*t.dot(i),a=i.dot(i)-r*r,l=s*s-4*o*a;if(l>0){var u=(-s-Math.sqrt(l))/(2*o),c=e.add(t.multiply(u));return new y(u,c,c.subtract(n).divide(r))}return null},x.hitTestTriangle=function(e,t,n,r,i){var o=r.subtract(n),s=i.subtract(n),a=o.cross(s).unit(),l=a.dot(n.subtract(e))/a.dot(t);if(l>0){var u=e.add(t.multiply(l)),c=u.subtract(n),h=s.dot(s),d=s.dot(o),f=s.dot(c),p=o.dot(o),m=o.dot(c),v=h*p-d*d,g=(p*f-d*m)/v,x=(h*m-d*f)/v;if(g>=0&&x>=0&&g+x<=1)return new y(l,u,a)}return null},M}();e.exports=n},72:function(e,t,n){var r=n(1);e.exports=function(e,t,n,i){var o=new Event(\"modelEvent\"),s=new Worker(\"/js/renderWorker.js\");return s.onmessage=function(e){if(e.data){if(\"rendered\"==e.data.cmd){var t,n=e.data.result.class;if(\"CSG\"==n)t=r.fromCompactBinary(e.data.result);else{if(\"CAG\"!=n)throw new Error(\"Cannot parse result\");t=CAG.fromCompactBinary(e.data.result)}i(null,t)}else\"error\"==e.data.cmd?i(e.data.err,null):e.data.cmd;\"progress\"==e.data.cmd&&(o.data=JSON.stringify(e.data),document.dispatchEvent(o))}},s.onerror=function(e){var t=\"Error in line \"+e.lineno+\": \"+e.message;i(t,null)},s.postMessage({cmd:\"render\",params:JSON.stringify(t)}),s}},73:function(e,t,n){var r=\"function\"==typeof Symbol&&\"symbol\"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&\"function\"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?\"symbol\":typeof 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u(e,t,n)}catch(e){}this.overlaydiv=document.getElementById(\"overlaydiv\"),this.statusdiv=document.getElementById(\"statusdiv\"),this.controlsdiv=document.getElementById(\"controlsdiv\"),this.screenshotdiv=document.getElementById(\"screenshotdiv\"),this.refreshbutton=document.getElementById(\"buttonRefresh\"),this.abortbutton=document.getElementById(\"buttonAbort\")},setCurrentObject:function(e){if(this.currentObject=e,this.viewer){var t=c.convertToSolid(e);this.viewer.setCsg(t),this.viewer.meshes[0]&&(this.areaCm2=this.viewer.meshes[0].areaCm2,this.volumeCm3=this.viewer.meshes[0].volumeCm3,this.boundsMm=this.viewer.meshes[0].boundsMm,l.postbox.publish(\"modelProperties\",{xDimMm:this.boundsMm.xDimMm,yDimMm:this.boundsMm.yDimMm,zDimMm:this.boundsMm.zDimMm,volumeCm3:this.volumeCm3,areaCm2:this.areaCm2})),this.viewer.fitZoom(this.viewer.meshes[0]),e.length&&(this.currentObject=t)}this.hasValidCurrentObject=!0},clearViewer:function(){this.clearOutputFile(),this.setCurrentObject(new i),this.hasValidCurrentObject=!1},abort:function(){\"processing\"==this.status&&(this.setStatus(\"aborted\"),this.worker.terminate())},setJsCad:function(e,t){t||(t=\"openjscad.jscad\"),t=t.replace(/\\.jscad$/i,\"\"),this.abort(),this.clearViewer(),this.script=e,this.filename=t,this.rebuildSolid()},setStatus:function(e,t){var n=new Event(\"renderEvent\");\"error\"==e?this.status=\"error\":\"ready\"==e&&\"processing\"==this.status?(this.status=\"ready\",n.ready=!0,document.dispatchEvent(n)):\"dataChanged\"==e&&\"error\"!=this.status?this.status=\"dataChanged\":\"aborted\"==e&&\"processing\"==this.status?this.status=\"aborted\":\"processing\"==e?this.status=\"processing\":\"generatingFile\"==e&&\"ready\"==this.status?this.status=\"generatingFile\":\"fileReady\"==e&&\"generatingFile\"==this.status&&(this.status=\"ready\")},rebuildSolid:function(){var e=this;this.abort(),this.setStatus(\"processing\");var t=this.getParams();e.worker=s(this.script,t,this.options,function(t,n){t?(e.abort(),e.setError(t),e.setStatus(\"error\")):(e.setCurrentObject(n),e.setStatus(\"ready\")),e.onchange&&e.onchange()})},revokeBlobUrl:function(e){if(window.URL)window.URL.revokeObjectURL(e);else{if(!window.webkitURL)throw new Error(\"Your browser doesn't support window.URL\");window.webkitURL.revokeObjectURL(e)}},clearOutputFile:function(){this.hasOutputFile&&(this.hasOutputFile=!1,this.outputFileDirEntry&&(this.outputFileDirEntry.removeRecursively(function(){}),this.outputFileDirEntry=null),this.outputFileBlobUrl&&(this.revokeBlobUrl(this.outputFileBlobUrl),this.outputFileBlobUrl=null),this.onchange&&this.onchange())},currentObjectToBlob:function(){var e,t=this.fileFormat;if(\"stla\"==t){e=new a.fromCSG(this.currentObject).toSTL(),e=new Blob([e],{type:this.formatInfo(t).mimetype})}else if(\"stlb\"==t)e=this.currentObject.toStlBinary({webBlob:!0});else if(\"amf\"==t)e=this.currentObject.toAMFString({producer:\"OpenJSCAD.org \"+version,date:new Date}),e=new Blob([e],{type:this.formatInfo(t).mimetype});else if(\"x3d\"==t)e=this.currentObject.fixTJunctions().toX3D(bb);else{if(\"dxf\"!=t)throw new Error(\"Not supported\");e=this.currentObject.toDxf()}return e},formatInfo:function(e){return{stla:{displayName:\"STL (ASCII)\",extension:\"stl\",mimetype:\"application/sla\"},stlb:{displayName:\"STL (Binary)\",extension:\"stl\",mimetype:\"application/sla\"},amf:{displayName:\"AMF (experimental)\",extension:\"amf\",mimetype:\"application/amf+xml\"},x3d:{displayName:\"X3D\",extension:\"x3d\",mimetype:\"model/x3d+xml\"},dxf:{displayName:\"DXF\",extension:\"dxf\",mimetype:\"application/dxf\"}}[e]},getImage:function(){var e=this.viewer.gl.canvas;this.viewer.animationOff();var t=this.viewer.angleY,n=this.viewer.getZoom();this.viewer.angleY=10,this.viewer.setZoom(.055);var r=e.toDataURL(\"image/png\");return this.viewer.angleY=t,this.viewer.setZoom(n),this.viewer.animationOn(),r},getFile:function(){var e=new Event(\"meshEvent\"),t=new Worker(\"/js/fileWorker.js\");processor.meshWorker=t,t.onmessage=function(t){e.data=t.data?t.data:\"\";var n=JSON.parse(t.data);n.volumeCm3&&n.areaCm2&&l.postbox.publish(\"modelProperties\",n),document.dispatchEvent(e)},t.onerror=function(t){e.error=\"Worker error: \"+t.message+\"\\n\",document.dispatchEvent(e)};var n=processor.getParams();n.fileMode=!0;var r=s(processor.script,n,processor.options,function(e,n){e||t.postMessage(JSON.stringify(n))});processor.fileWorker=r},abortFile:function(){processor.meshWorker&&processor.meshWorker.terminate(),processor.fileWorker&&processor.fileWorker.terminate()},getVolumeCm3:function(){return processor.volumeCm3},getAreaCm2:function(){return processor.areaCm2},getBoundsMm:function(){return processor.boundsMm},animationOn:function(){processor.viewer.animationOn()},animationOff:function(){processor.viewer.animationOff()},refreshView:function(){processor.rebuildSolid()}},e.exports=c}});\n\n\n// WEBPACK FOOTER //\n// /js/viewer.js"],"mappings":"AAAA","sourceRoot":""}