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cola.min.js

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b=this;this.computeNextPosition(this.x,this.a),a.mid(this.x,this.a,this.ia),this.computeNextPosition(this.ia,this.b),a.mid(this.x,this.b,this.ib),this.computeNextPosition(this.ib,this.c),this.computeNextPosition(this.c,this.d);var c=0;return this.matrixApply(function(a,d){var e=(b.a[a][d]+2*b.b[a][d]+2*b.c[a][d]+b.d[a][d])/6,f=b.x[a][d]-e;c+=f*f,b.x[a][d]=e}),c},a.mid=function(b,c,d){a.mApply(b.length,b[0].length,function(a,e){return d[a][e]=b[a][e]+(c[a][e]-b[a][e])/2})},a.prototype.takeDescentStep=function(a,b,c){for(var d=0;d<this.n;++d)a[d]=a[d]-c*b[d]},a.prototype.computeStress=function(){for(var a=0,b=0,c=this.n-1;b<c;++b)for(var d=b+1,e=this.n;d<e;++d){for(var f=0,g=0;g<this.k;++g){var h=this.x[g][b]-this.x[g][d];f+=h*h}f=Math.sqrt(f);var i=this.D[b][d];if(isFinite(i)){var j=i-f,k=i*i;a+=j*j/k}}return a},a}();e.zeroDistance=1e-10,c.Descent=e;var f=function(){function a(a){void 0===a&&(a=1),this.seed=a,this.a=214013,this.c=2531011,this.m=2147483648,this.range=32767}return 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d=0;d<c;++d)if(d!==b){var e=this.P[d],f=i(a,e);this.addEdgeIfVisible(a,e[f.ltan],b,d),this.addEdgeIfVisible(a,e[f.rtan],b,d)}return a.vv},a.prototype.intersectsPolys=function(a,b,c){for(var d=0,e=this.P.length;d<e;++d)if(d!=b&&d!=c&&q(a,this.P[d]).length>0)return!0;return!1},a}();c.TangentVisibilityGraph=F,c.tangents=r,c.polysOverlap=u},{"./rectangle":17}],9:[function(a,b,c){"use strict";var d=a("./rectangle"),e=a("./vpsc"),f=a("./shortestpaths"),g=function(){function a(a,b,c){this.id=a,this.rect=b,this.children=c,this.leaf="undefined"==typeof c||0===c.length}return a}();c.NodeWrapper=g;var h=function(){function a(a,b,c,d,e){void 0===d&&(d=null),void 0===e&&(e=null),this.id=a,this.x=b,this.y=c,this.node=d,this.line=e}return a}();c.Vert=h;var i=function(){function a(b,c){this.s=b,this.t=c;var d=a.findMatch(b,c),e=c.slice(0).reverse(),f=a.findMatch(b,e);d.length>=f.length?(this.length=d.length,this.si=d.si,this.ti=d.ti,this.reversed=!1):(this.length=f.length,this.si=f.si,this.ti=c.length-f.ti-f.length,this.reversed=!0)}return a.findMatch=function(a,b){for(var c=a.length,d=b.length,e={length:0,si:-1,ti:-1},f=new Array(c),g=0;g<c;g++){f[g]=new Array(d);for(var h=0;h<d;h++)if(a[g]===b[h]){var i=f[g][h]=0===g||0===h?1:f[g-1][h-1]+1;i>e.length&&(e.length=i,e.si=g-i+1,e.ti=h-i+1)}else f[g][h]=0}return e},a.prototype.getSequence=function(){return this.length>=0?this.s.slice(this.si,this.si+this.length):[]},a}();c.LongestCommonSubsequence=i;var j=function(){function a(a,b,c){void 0===c&&(c=12);var e=this;this.originalnodes=a,this.groupPadding=c,this.leaves=null,this.nodes=a.map(function(a,c){return new g(c,b.getBounds(a),b.getChildren(a))}),this.leaves=this.nodes.filter(function(a){return a.leaf}),this.groups=this.nodes.filter(function(a){return!a.leaf}),this.cols=this.getGridLines("x"),this.rows=this.getGridLines("y"),this.groups.forEach(function(a){return a.children.forEach(function(b){return e.nodes[b].parent=a})}),this.root={children:[]},this.nodes.forEach(function(a){"undefined"==typeof a.parent&&(a.parent=e.root,e.root.children.push(a.id)),a.ports=[]}),this.backToFront=this.nodes.slice(0),this.backToFront.sort(function(a,b){return e.getDepth(a)-e.getDepth(b)});var f=this.backToFront.slice(0).reverse().filter(function(a){return!a.leaf});f.forEach(function(a){var b=d.Rectangle.empty();a.children.forEach(function(a){return b=b.union(e.nodes[a].rect)}),a.rect=b.inflate(e.groupPadding)});var i=this.midPoints(this.cols.map(function(a){return a.pos})),j=this.midPoints(this.rows.map(function(a){return a.pos})),k=i[0],l=i[i.length-1],m=j[0],n=j[j.length-1],o=this.rows.map(function(a){return{x1:k,x2:l,y1:a.pos,y2:a.pos}}).concat(j.map(function(a){return{x1:k,x2:l,y1:a,y2:a}})),p=this.cols.map(function(a){return{x1:a.pos,x2:a.pos,y1:m,y2:n}}).concat(i.map(function(a){return{x1:a,x2:a,y1:m,y2:n}})),q=o.concat(p);q.forEach(function(a){return a.verts=[]}),this.verts=[],this.edges=[],o.forEach(function(a){return p.forEach(function(b){var c=new h(e.verts.length,b.x1,a.y1);a.verts.push(c),b.verts.push(c),e.verts.push(c);for(var d=e.backToFront.length;d-- >0;){var f=e.backToFront[d],g=f.rect,i=Math.abs(c.x-g.cx()),j=Math.abs(c.y-g.cy());if(i<g.width()/2&&j<g.height()/2){c.node=f;break}}})}),q.forEach(function(a,b){e.nodes.forEach(function(b,c){b.rect.lineIntersections(a.x1,a.y1,a.x2,a.y2).forEach(function(c,d){var f=new h(e.verts.length,c.x,c.y,b,a);e.verts.push(f),a.verts.push(f),b.ports.push(f)})});var c=Math.abs(a.y1-a.y2)<.1,d=function(a,b){return c?b.x-a.x:b.y-a.y};a.verts.sort(d);for(var f=1;f<a.verts.length;f++){var g=a.verts[f-1],i=a.verts[f];g.node&&g.node===i.node&&g.node.leaf||e.edges.push({source:g.id,target:i.id,length:Math.abs(d(g,i))})}})}return a.prototype.avg=function(a){return a.reduce(function(a,b){return a+b})/a.length},a.prototype.getGridLines=function(a){for(var b=[],c=this.leaves.slice(0,this.leaves.length);c.length>0;){var d=c.filter(function(b){return b.rect["overlap"+a.toUpperCase()](c[0].rect)}),e={nodes:d,pos:this.avg(d.map(function(b){return b.rect["c"+a]()}))};b.push(e),e.nodes.forEach(function(a){return c.splice(c.indexOf(a),1)})}return b.sort(function(a,b){return a.pos-b.pos}),b},a.prototype.getDepth=function(a){for(var b=0;a.parent!==this.root;)b++,a=a.parent;return b},a.prototype.midPoints=function(a){for(var b=a[1]-a[0],c=[a[0]-b/2],d=1;d<a.length;d++)c.push((a[d]+a[d-1])/2);return c.push(a[a.length-1]+b/2),c},a.prototype.findLineage=function(a){var b=[a];do a=a.parent,b.push(a);while(a!==this.root);return b.reverse()},a.prototype.findAncestorPathBetween=function(a,b){for(var c=this.findLineage(a),d=this.findLineage(b),e=0;c[e]===d[e];)e++;return{commonAncestor:c[e-1],lineages:c.slice(e).concat(d.slice(e))}},a.prototype.siblingObstacles=function(a,b){var c=this,d=this.findAncestorPathBetween(a,b),e={};d.lineages.forEach(function(a){return e[a.id]={}});var f=d.commonAncestor.children.filter(function(a){return!(a in e)});return d.lineages.filter(function(a){return a.parent!==d.commonAncestor}).forEach(function(a){return f=f.concat(a.parent.children.filter(function(b){return b!==a.id}))}),f.map(function(a){return c.nodes[a]})},a.getSegmentSets=function(a,b,c){for(var d=[],e=0;e<a.length;e++)for(var f=a[e],g=0;g<f.length;g++){var h=f[g];h.edgeid=e,h.i=g;var i=h[1][b]-h[0][b];Math.abs(i)<.1&&d.push(h)}d.sort(function(a,c){return a[0][b]-c[0][b]});for(var j=[],k=null,l=0;l<d.length;l++){var h=d[l];(!k||Math.abs(h[0][b]-k.pos)>.1)&&(k={pos:h[0][b],segments:[]},j.push(k)),k.segments.push(h)}return j},a.nudgeSegs=function(a,b,c,d,f,g){var h=d.length;if(!(h<=1)){for(var i=d.map(function(b){return new e.Variable(b[0][a])}),j=[],k=0;k<h;k++)for(var l=0;l<h;l++)if(k!==l){var m=d[k],n=d[l],o=m.edgeid,p=n.edgeid,q=-1,r=-1;"x"==a?f(o,p)&&(m[0][b]<m[1][b]?(q=l,r=k):(q=k,r=l)):f(o,p)&&(m[0][b]<m[1][b]?(q=k,r=l):(q=l,r=k)),q>=0&&j.push(new e.Constraint(i[q],i[r],g))}var s=new e.Solver(i,j);s.solve(),i.forEach(function(b,e){var f=d[e],g=b.position();f[0][a]=f[1][a]=g;var h=c[f.edgeid];f.i>0&&(h[f.i-1][1][a]=g),f.i<h.length-1&&(h[f.i+1][0][a]=g)})}},a.nudgeSegments=function(b,c,d,e,f){for(var g=a.getSegmentSets(b,c,d),h=0;h<g.length;h++){for(var i=g[h],j=[],k=0;k<i.segments.length;k++){var l=i.segments[k];j.push({type:0,s:l,pos:Math.min(l[0][d],l[1][d])}),j.push({type:1,s:l,pos:Math.max(l[0][d],l[1][d])})}j.sort(function(a,b){return a.pos-b.pos+a.type-b.type});var m=[],n=0;j.forEach(function(g){0===g.type?(m.push(g.s),n++):n--,0==n&&(a.nudgeSegs(c,d,b,m,e,f),m=[])})}},a.prototype.routeEdges=function(b,c,d,e){var f=this,g=b.map(function(a){return f.route(d(a),e(a))}),h=a.orderEdges(g),i=g.map(function(b){return a.makeSegments(b)});return a.nudgeSegments(i,"x","y",h,c),a.nudgeSegments(i,"y","x",h,c),a.unreverseEdges(i,g),i},a.unreverseEdges=function(a,b){a.forEach(function(a,c){var d=b[c];d.reversed&&(a.reverse(),a.forEach(function(a){a.reverse()}))})},a.angleBetween2Lines=function(a,b){var c=Math.atan2(a[0].y-a[1].y,a[0].x-a[1].x),d=Math.atan2(b[0].y-b[1].y,b[0].x-b[1].x),e=c-d;return(e>Math.PI||e<-Math.PI)&&(e=d-c),e},a.isLeft=function(a,b,c){return(b.x-a.x)*(c.y-a.y)-(b.y-a.y)*(c.x-a.x)<=0},a.getOrder=function(a){for(var b={},c=0;c<a.length;c++){var d=a[c];"undefined"==typeof b[d.l]&&(b[d.l]={}),b[d.l][d.r]=!0}return function(a,c){return"undefined"!=typeof b[a]&&b[a][c]}},a.orderEdges=function(b){for(var c=[],d=0;d<b.length-1;d++)for(var e=d+1;e<b.length;e++){var f,g,h,j=b[d],k=b[e],l=new i(j,k);0!==l.length&&(l.reversed&&(k.reverse(),k.reversed=!0,l=new i(j,k)),(l.si<=0||l.ti<=0)&&(l.si+l.length>=j.length||l.ti+l.length>=k.length)?c.push({l:d,r:e}):(l.si+l.length>=j.length||l.ti+l.length>=k.length?(f=j[l.si+1],h=j[l.si-1],g=k[l.ti-1]):(f=j[l.si+l.length-2],g=j[l.si+l.length],h=k[l.ti+l.length]),a.isLeft(f,g,h)?c.push({l:e,r:d}):c.push({l:d,r:e})))}return a.getOrder(c)},a.makeSegments=function(a){function b(a){return{x:a.x,y:a.y}}for(var c=function(a,b,c){return Math.abs((b.x-a.x)*(c.y-a.y)-(b.y-a.y)*(c.x-a.x))<.001},d=[],e=b(a[0]),f=1;f<a.length;f++){var g=b(a[f]),h=f<a.length-1?a[f+1]:null;h&&c(e,g,h)||(d.push([e,g]),e=g)}return d},a.prototype.route=function(a,b){var c=this,d=this.nodes[a],e=this.nodes[b];this.obstacles=this.siblingObstacles(d,e);var g={};this.obstacles.forEach(function(a){return g[a.id]=a}),this.passableEdges=this.edges.filter(function(a){var b=c.verts[a.source],d=c.verts[a.target];return!(b.node&&b.node.id in g||d.node&&d.node.id in g)});for(var h=1;h<d.ports.length;h++){var i=d.ports[0].id,j=d.ports[h].id;this.passableEdges.push({source:i,target:j,length:0})}for(var h=1;h<e.ports.length;h++){var i=e.ports[0].id,j=e.ports[h].id;this.passableEdges.push({source:i,target:j,length:0})}var k=function(a){return a.source},l=function(a){return a.target},m=function(a){return a.length},n=new f.Calculator(this.verts.length,this.passableEdges,k,l,m),o=function(a,b,f){var g=c.verts[a],h=c.verts[b],i=c.verts[f],j=Math.abs(i.x-g.x),k=Math.abs(i.y-g.y);return g.node===d&&g.node===h.node||h.node===e&&h.node===i.node?0:j>1&&k>1?1e3:0},p=n.PathFromNodeToNodeWithPrevCost(d.ports[0].id,e.ports[0].id,o),q=p.reverse().map(function(a){return c.verts[a]});return q.push(this.nodes[e.id].ports[0]),q.filter(function(a,b){return!(b<q.length-1&&q[b+1].node===d&&a.node===d||b>0&&a.node===e&&q[b-1].node===e)})},a.getRoutePath=function(b,c,d,e){var f={routepath:"M "+b[0][0].x+" "+b[0][0].y+" ",arrowpath:""};if(b.length>1)for(var g=0;g<b.length;g++){var h=b[g],i=h[1].x,j=h[1].y,k=i-h[0].x,l=j-h[0].y;if(g<b.length-1){Math.abs(k)>0?i-=k/Math.abs(k)*c:j-=l/Math.abs(l)*c,f.routepath+="L "+i+" "+j+" ";var m=b[g+1],n=m[0].x,o=m[0].y,p=m[1].x,q=m[1].y;k=p-n,l=q-o;var r,s,t=a.angleBetween2Lines(h,m)<0?1:0;Math.abs(k)>0?(r=n+k/Math.abs(k)*c,s=o):(r=n,s=o+l/Math.abs(l)*c);var u=Math.abs(r-i),v=Math.abs(s-j);f.routepath+="A "+u+" "+v+" 0 0 "+t+" "+r+" "+s+" "}else{var w,x,y=[i,j];Math.abs(k)>0?(i-=k/Math.abs(k)*e,w=[i,j+d],x=[i,j-d]):(j-=l/Math.abs(l)*e,w=[i+d,j],x=[i-d,j]),f.routepath+="L "+i+" "+j+" ",e>0&&(f.arrowpath="M "+y[0]+" "+y[1]+" L "+w[0]+" "+w[1]+" L "+x[0]+" "+x[1])}}else{var w,x,h=b[0],i=h[1].x,j=h[1].y,k=i-h[0].x,l=j-h[0].y,y=[i,j];Math.abs(k)>0?(i-=k/Math.abs(k)*e,w=[i,j+d],x=[i,j-d]):(j-=l/Math.abs(l)*e,w=[i+d,j],x=[i-d,j]),f.routepath+="L "+i+" "+j+" ",e>0&&(f.arrowpath="M "+y[0]+" "+y[1]+" L "+w[0]+" "+w[1]+" L "+x[0]+" 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u[a][b]});if(this._rootGroup&&"undefined"!=typeof this._rootGroup.groups){var l=m,w=function(a,b,c,d){s[a][b]=s[b][a]=c,v[a][b]=v[b][a]=d};this._groups.forEach(function(a){w(l,l+1,k._groupCompactness,.1),q[l]=0,r[l++]=0,q[l]=0,r[l++]=0})}else this._rootGroup={leaves:this._nodes,groups:[]};var x=this._constraints||[];this._directedLinkConstraints&&(this.linkAccessor.getMinSeparation=this._directedLinkConstraints.getMinSeparation,x=x.concat(g.generateDirectedEdgeConstraints(m,this._links,this._directedLinkConstraints.axis,this.linkAccessor))),this.avoidOverlaps(!1),this._descent=new h.Descent([q,r],v),this._descent.locks.clear();for(var l=0;l<m;++l){var y=this._nodes[l];if(y.fixed){y.px=y.x,y.py=y.y;var z=[y.x,y.y];this._descent.locks.add(l,z)}}if(this._descent.threshold=this._threshold,this.initialLayout(b,q,r),x.length>0&&(this._descent.project=new 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e=this._nodes.length,f=this._links.map(function(a){return{source:a.source.index,target:a.target.index}}),g=this._nodes.map(function(a){return{index:a.index}});this._groups.forEach(function(a,b){g.push({index:a.index=e+b})}),this._groups.forEach(function(a,b){"undefined"!=typeof a.leaves&&a.leaves.forEach(function(b){return f.push({source:a.index,target:b.index})}),"undefined"!=typeof a.groups&&a.groups.forEach(function(b){return f.push({source:a.index,target:b.index})})}),(new a).size(this.size()).nodes(g).links(f).avoidOverlaps(!1).linkDistance(this.linkDistance()).symmetricDiffLinkLengths(5).convergenceThreshold(1e-4).start(b,0,0,0,!1),this._nodes.forEach(function(a){c[a.index]=g[a.index].x,d[a.index]=g[a.index].y})}else this._descent.run(b)},a.prototype.separateOverlappingComponents=function(a,b){var c=this;if(!this._distanceMatrix&&this._handleDisconnected){var d=this._descent.x[0],e=this._descent.x[1];this._nodes.forEach(function(a,b){a.x=d[b],a.y=e[b]});var f=l.separateGraphs(this._nodes,this._links);l.applyPacking(f,a,b,this._defaultNodeSize),this._nodes.forEach(function(a,b){c._descent.x[0][b]=a.x,c._descent.x[1][b]=a.y,a.bounds&&(a.bounds.setXCentre(a.x),a.bounds.setYCentre(a.y))})}},a.prototype.resume=function(){return this.alpha(.1)},a.prototype.stop=function(){return this.alpha(0)},a.prototype.prepareEdgeRouting=function(a){void 0===a&&(a=0),this._visibilityGraph=new k.TangentVisibilityGraph(this._nodes.map(function(b){return b.bounds.inflate(-a).vertices()}))},a.prototype.routeEdge=function(a,b){var c=[],d=new k.TangentVisibilityGraph(this._visibilityGraph.P,{V:this._visibilityGraph.V,E:this._visibilityGraph.E}),e={x:a.source.x,y:a.source.y},f={x:a.target.x,y:a.target.y},g=d.addPoint(e,a.source.index),h=d.addPoint(f,a.target.index);d.addEdgeIfVisible(e,f,a.source.index,a.target.index),"undefined"!=typeof b&&b(d);var l=function(a){return a.source.id},m=function(a){return a.target.id},n=function(a){return a.length()},o=new j.Calculator(d.V.length,d.E,l,m,n),p=o.PathFromNodeToNode(g.id,h.id);if(1===p.length||p.length===d.V.length){var q=i.makeEdgeBetween(a.source.innerBounds,a.target.innerBounds,5);c=[q.sourceIntersection,q.arrowStart]}else{for(var r=p.length-2,s=d.V[p[r]].p,t=d.V[p[0]].p,c=[a.source.innerBounds.rayIntersection(s.x,s.y)],u=r;u>=0;--u)c.push(d.V[p[u]].p);c.push(i.makeEdgeTo(t,a.target.innerBounds,5))}return c},a.getSourceIndex=function(a){return"number"==typeof a.source?a.source:a.source.index},a.getTargetIndex=function(a){return"number"==typeof a.target?a.target:a.target.index},a.linkId=function(b){return a.getSourceIndex(b)+"-"+a.getTargetIndex(b)},a.dragStart=function(b){d(b)?a.storeOffset(b,a.dragOrigin(b)):(a.stopNode(b),b.fixed|=2)},a.stopNode=function(a){a.px=a.x,a.py=a.y},a.storeOffset=function(b,c){"undefined"!=typeof b.leaves&&b.leaves.forEach(function(b){b.fixed|=2,a.stopNode(b),b._dragGroupOffsetX=b.x-c.x,b._dragGroupOffsetY=b.y-c.y}),"undefined"!=typeof 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d=a("./shortestpaths"),e=a("./descent"),f=a("./rectangle"),g=a("./linklengths"),h=function(){function a(a,b){this.source=a,this.target=b}return a.prototype.actualLength=function(a){var b=this;return Math.sqrt(a.reduce(function(a,c){var d=c[b.target]-c[b.source];return a+d*d},0))},a}();c.Link3D=h;var i=function(){function a(a,b,c){void 0===a&&(a=0),void 0===b&&(b=0),void 0===c&&(c=0),this.x=a,this.y=b,this.z=c}return a}();c.Node3D=i;var j=function(){function a(b,c,d){void 0===d&&(d=1);var e=this;this.nodes=b,this.links=c,this.idealLinkLength=d,this.constraints=null,this.useJaccardLinkLengths=!0,this.result=new Array(a.k);for(var f=0;f<a.k;++f)this.result[f]=new Array(b.length);b.forEach(function(b,c){for(var d=0,f=a.dims;d<f.length;d++){var g=f[d];"undefined"==typeof b[g]&&(b[g]=Math.random())}e.result[0][c]=b.x,e.result[1][c]=b.y,e.result[2][c]=b.z})}return a.prototype.linkLength=function(a){return a.actualLength(this.result)},a.prototype.start=function(a){var b=this;void 0===a&&(a=100);var c=this.nodes.length,h=new k;this.useJaccardLinkLengths&&g.jaccardLinkLengths(this.links,h,1.5),this.links.forEach(function(a){return a.length*=b.idealLinkLength});var i=new d.Calculator(c,this.links,function(a){return a.source},function(a){return a.target},function(a){return a.length}).DistanceMatrix(),j=e.Descent.createSquareMatrix(c,function(a,b){return i[a][b]}),l=e.Descent.createSquareMatrix(c,function(){return 2});this.links.forEach(function(a){var b=a.source,c=a.target;return l[b][c]=l[c][b]=1}),this.descent=new e.Descent(this.result,j),this.descent.threshold=.001,this.descent.G=l,this.constraints&&(this.descent.project=new f.Projection(this.nodes,null,null,this.constraints).projectFunctions());for(var m=0;m<this.nodes.length;m++){var n=this.nodes[m];n.fixed&&this.descent.locks.add(m,[n.x,n.y,n.z])}return this.descent.run(a),this},a.prototype.tick=function(){this.descent.locks.clear();for(var a=0;a<this.nodes.length;a++){var b=this.nodes[a];b.fixed&&this.descent.locks.add(a,[b.x,b.y,b.z])}return this.descent.rungeKutta()},a}();j.dims=["x","y","z"],j.k=j.dims.length,c.Layout3D=j;var k=function(){function a(){}return a.prototype.getSourceIndex=function(a){return a.source},a.prototype.getTargetIndex=function(a){return a.target},a.prototype.getLength=function(a){return a.length},a.prototype.setLength=function(a,b){a.length=b},a}()},{"./descent":7,"./linklengths":13,"./rectangle":17,"./shortestpaths":18}],13:[function(a,b,c){"use strict";function d(a,b){var c={};for(var d in a)c[d]={};for(var d in b)c[d]={};return Object.keys(c).length}function e(a,b){var c=0;for(var d in a)"undefined"!=typeof b[d]&&++c;return c}function f(a,b){var c={},d=function(a,b){"undefined"==typeof c[a]&&(c[a]={}),c[a][b]={}};return a.forEach(function(a){var c=b.getSourceIndex(a),e=b.getTargetIndex(a);d(c,e),d(e,c)}),c}function g(a,b,c,d){var e=f(a,d);a.forEach(function(a){var 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b},a.prototype.merge=function(a,b,c){void 0===c&&(c=0);var d=a.incoming.intersection(b.incoming),e=a.outgoing.intersection(b.outgoing),f=new j;f.add(a),f.add(b);var g=new i(this.modules.length,e,d,f);this.modules.push(g);var h=function(c,d,e){c.forAll(function(c,f){c.forAll(function(c){var h=c[d];h.add(f,g),h.remove(f,a),h.remove(f,b),a[e].remove(f,c),b[e].remove(f,c)})})};return h(e,"incoming","outgoing"),h(d,"outgoing","incoming"),this.R-=d.count()+e.count(),this.roots[c].remove(a),this.roots[c].remove(b),this.roots[c].add(g),g},a.prototype.rootMerges=function(a){void 0===a&&(a=0);for(var b=this.roots[a].modules(),c=b.length,d=new Array(c*(c-1)),e=0,f=0,g=c-1;f<g;++f)for(var h=f+1;h<c;++h){var i=b[f],j=b[h];d[e]={id:e,nEdges:this.nEdges(i,j),a:i,b:j},e++}return d},a.prototype.greedyMerge=function(){for(var a=0;a<this.roots.length;++a)if(!(this.roots[a].modules().length<2)){var b=this.rootMerges(a).sort(function(a,b){return a.nEdges==b.nEdges?a.id-b.id:a.nEdges-b.nEdges}),c=b[0];if(!(c.nEdges>=this.R))return this.merge(c.a,c.b,a),!0}},a.prototype.nEdges=function(a,b){var c=a.incoming.intersection(b.incoming),d=a.outgoing.intersection(b.outgoing);return this.R-c.count()-d.count()},a.prototype.getGroupHierarchy=function(a){var b=this,c=[],e={};d(this.roots[0],e,c);var f=this.allEdges();return f.forEach(function(d){var e=b.modules[d.source],f=b.modules[d.target];a.push(new g("undefined"==typeof e.gid?d.source:c[e.gid],"undefined"==typeof f.gid?d.target:c[f.gid],d.type))}),c},a.prototype.allEdges=function(){var b=[];return a.getEdges(this.roots[0],b),b},a.getEdges=function(b,c){b.forAll(function(b){b.getEdges(c),a.getEdges(b.children,c)})},a}();c.Configuration=h;var i=function(){function a(a,b,c,d,e){void 0===b&&(b=new k),void 0===c&&(c=new k),void 0===d&&(d=new j),this.id=a,this.outgoing=b,this.incoming=c,this.children=d,this.definition=e}return a.prototype.getEdges=function(a){var b=this;this.outgoing.forAll(function(c,d){c.forAll(function(c){a.push(new g(b.id,c.id,d))})})},a.prototype.isLeaf=function(){return 0===this.children.count()},a.prototype.isIsland=function(){return 0===this.outgoing.count()&&0===this.incoming.count()},a.prototype.isPredefined=function(){return"undefined"!=typeof this.definition},a}();c.Module=i;var j=function(){function a(){this.table={}}return a.prototype.count=function(){return Object.keys(this.table).length},a.prototype.intersection=function(b){var c=new a;return c.table=e(this.table,b.table),c},a.prototype.intersectionCount=function(a){return this.intersection(a).count()},a.prototype.contains=function(a){return a in this.table},a.prototype.add=function(a){this.table[a.id]=a},a.prototype.remove=function(a){delete this.table[a.id]},a.prototype.forAll=function(a){for(var b in this.table)a(this.table[b])},a.prototype.modules=function(){var a=[];return this.forAll(function(b){b.isPredefined()||a.push(b)}),a},a}();c.ModuleSet=j;var k=function(){function a(){this.sets={},this.n=0}return a.prototype.count=function(){return this.n},a.prototype.contains=function(a){var b=!1;return this.forAllModules(function(c){b||c.id!=a||(b=!0)}),b},a.prototype.add=function(a,b){var c=a in this.sets?this.sets[a]:this.sets[a]=new j;c.add(b),++this.n},a.prototype.remove=function(a,b){var c=this.sets[a];c.remove(b),0===c.count()&&delete this.sets[a],--this.n},a.prototype.forAll=function(a){for(var b in this.sets)a(this.sets[b],Number(b))},a.prototype.forAllModules=function(a){this.forAll(function(b,c){return b.forAll(a)})},a.prototype.intersection=function(b){var c=new a;return this.forAll(function(a,d){if(d in b.sets){var e=a.intersection(b.sets[d]),f=e.count();f>0&&(c.sets[d]=e,c.n+=f)}}),c},a}();c.LinkSets=k,c.getGroups=f},{}],15:[function(a,b,c){"use strict";var d=function(){function a(a){this.elem=a,this.subheaps=[]}return a.prototype.toString=function(a){for(var b="",c=!1,d=0;d<this.subheaps.length;++d){var 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a.prototype.clear=function(){this._root=null,this.size=0},a.prototype.find=function(a){for(var b=this._root;null!==b;){var c=this._comparator(a,b.data);if(0===c)return b.data;b=b.get_child(c>0)}return null},a.prototype.lowerBound=function(a){return this._bound(a,this._comparator)},a.prototype.upperBound=function(a){function b(a,b){return c(b,a)}var c=this._comparator;return this._bound(a,b)},a.prototype.min=function(){var a=this._root;if(null===a)return null;for(;null!==a.left;)a=a.left;return a.data},a.prototype.max=function(){var a=this._root;if(null===a)return null;for(;null!==a.right;)a=a.right;return a.data},a.prototype.iterator=function(){return new f(this)},a.prototype.each=function(a){for(var b,c=this.iterator();null!==(b=c.next());)a(b)},a.prototype.reach=function(a){for(var b,c=this.iterator();null!==(b=c.prev());)a(b)},a.prototype._bound=function(a,b){for(var c=this._root,d=this.iterator();null!==c;){var e=this._comparator(a,c.data);if(0===e)return 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b;do{if(b=this._cursor,!this._ancestors.length){this._cursor=null;break}this._cursor=this._ancestors.pop()}while(this._cursor.left===b)}else this._ancestors.push(this._cursor),this._maxNode(this._cursor.left);return null!==this._cursor?this._cursor.data:null},a.prototype._minNode=function(a){for(;null!==a.left;)this._ancestors.push(a),a=a.left;this._cursor=a},a.prototype._maxNode=function(a){for(;null!==a.right;)this._ancestors.push(a),a=a.right;this._cursor=a},a}();c.Iterator=f;var g=function(){function a(a){this.data=a,this.left=null,this.right=null,this.red=!0}return a.prototype.get_child=function(a){return a?this.right:this.left},a.prototype.set_child=function(a,b){a?this.right=b:this.left=b},a}(),h=function(a){function b(b){var c=a.call(this)||this;return c._root=null,c._comparator=b,c.size=0,c}return d(b,a),b.prototype.insert=function(a){var c=!1;if(null===this._root)this._root=new g(a),c=!0,this.size++;else{var d=new g(void 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n=f.right===e;b.is_red(m.get_child(j))?f.set_child(n,b.double_rotate(e,j)):b.is_red(m.get_child(!j))&&f.set_child(n,b.single_rotate(e,j));var o=f.get_child(n);o.red=!0,d.red=!0,o.left.red=!1,o.right.red=!1}else e.red=!1,m.red=!0,d.red=!0}}return null!==h&&(h.data=d.data,e.set_child(e.right===d,d.get_child(null===d.left)),this.size--),this._root=c.right,null!==this._root&&(this._root.red=!1),null!==h},b.is_red=function(a){return null!==a&&a.red},b.single_rotate=function(a,b){var c=a.get_child(!b);return a.set_child(!b,c.get_child(b)),c.set_child(b,a),a.red=!0,c.red=!1,c},b.double_rotate=function(a,c){return a.set_child(!c,b.single_rotate(a.get_child(!c),!c)),b.single_rotate(a,c)},b}(e);c.RBTree=h},{}],17:[function(a,b,c){"use strict";function d(a){return a.bounds="undefined"!=typeof a.leaves?a.leaves.reduce(function(a,b){return b.bounds.union(a)},u.empty()):u.empty(),"undefined"!=typeof a.groups&&(a.bounds=a.groups.reduce(function(a,b){return 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b=c[a.minVar.index]=a.minVar.position(),d=c[a.maxVar.index]=a.maxVar.position(),e=a.padding/2;a.bounds.y=b-e,a.bounds.Y=d+e})},a.prototype.projectFunctions=function(){var a=this;return[function(b,c,d){return a.xProject(b,c,d)},function(b,c,d){return a.yProject(b,c,d)}]},a.prototype.project=function(a,b,c,e,f,g,h,i,j){this.setupVariablesAndBounds(a,b,e,f),this.rootGroup&&this.avoidOverlaps&&(d(this.rootGroup),g=g.concat(h(this.rootGroup))),this.solve(this.variables,g,c,e),this.nodes.forEach(i),this.rootGroup&&this.avoidOverlaps&&(this.groups.forEach(j),d(this.rootGroup))},a.prototype.solve=function(a,b,c,d){var e=new s.Solver(a,b);e.setStartingPositions(c),e.setDesiredPositions(d),e.solve()},a}();c.Projection=A},{"./rbtree":16,"./vpsc":19}],18:[function(a,b,c){"use strict";var d=a("./pqueue"),e=function(){function a(a,b){this.id=a,this.distance=b}return a}(),f=function(){function a(a){this.id=a,this.neighbours=[]}return a}(),g=function(){function 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m=l.id+","+f.id;if(!(m in i&&i[m]<=h.d)){var n=h.prev?c(h.prev.node.id,f.id,l.id):0,o=h.d+k.distance+n;i[m]=o,e.push(new g(l,h,o))}}}for(var p=[];h.prev;)h=h.prev,p.push(h.node.id);return p},a.prototype.dijkstraNeighbours=function(a,b){void 0===b&&(b=-1);for(var c=new d.PriorityQueue(function(a,b){return a.d<=b.d}),e=this.neighbours.length,f=new Array(e);e--;){var g=this.neighbours[e];g.d=e===a?0:Number.POSITIVE_INFINITY,g.q=c.push(g)}for(;!c.empty();){var h=c.pop();if(f[h.id]=h.d,h.id===b){for(var i=[],j=h;"undefined"!=typeof j.prev;)i.push(j.prev.id),j=j.prev;return i}for(e=h.neighbours.length;e--;){var k=h.neighbours[e],j=this.neighbours[k.id],l=h.d+k.distance;h.d!==Number.MAX_VALUE&&j.d>l&&(j.d=l,j.prev=h,c.reduceKey(j.q,j,function(a,b){return a.q=b}))}}return f},a}();c.Calculator=h},{"./pqueue":15}],19:[function(a,b,c){"use strict";function d(a,b,c){for(var d=a.map(function(a){return new g(a.desiredCenter)}),e=[],h=a.length,i=0;i<h-1;i++){var k=a[i],l=a[i+1];e.push(new 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this.unsatisfiable?Number.MAX_VALUE:this.right.scale*this.right.position()-this.gap-this.left.scale*this.left.position()},a}();c.Constraint=f;var g=function(){function a(a,b,c){void 0===b&&(b=1),void 0===c&&(c=1),this.desiredPosition=a,this.weight=b,this.scale=c,this.offset=0}return a.prototype.dfdv=function(){return 2*this.weight*(this.position()-this.desiredPosition)},a.prototype.position=function(){return(this.block.ps.scale*this.block.posn+this.offset)/this.scale},a.prototype.visitNeighbours=function(a,b){var c=function(c,d){return c.active&&a!==d&&b(c,d)};this.cOut.forEach(function(a){return c(a,a.right)}),this.cIn.forEach(function(a){return c(a,a.left)})},a}();c.Variable=g;var h=function(){function a(a){this.vars=[],a.offset=0,this.ps=new e(a.scale),this.addVariable(a)}return a.prototype.addVariable=function(a){a.block=this,this.vars.push(a),this.ps.addVariable(a),this.posn=this.ps.getPosn()},a.prototype.updateWeightedPosition=function(){this.ps.AB=this.ps.AD=this.ps.A2=0;for(var a=0,b=this.vars.length;a<b;++a)this.ps.addVariable(this.vars[a]);this.posn=this.ps.getPosn()},a.prototype.compute_lm=function(a,b,c){var d=this,e=a.dfdv();return a.visitNeighbours(b,function(b,f){var g=d.compute_lm(f,a,c);f===b.right?(e+=g*b.left.scale,b.lm=g):(e+=g*b.right.scale,b.lm=-g),c(b)}),e/a.scale},a.prototype.populateSplitBlock=function(a,b){var c=this;a.visitNeighbours(b,function(b,d){d.offset=a.offset+(d===b.right?b.gap:-b.gap),c.addVariable(d),c.populateSplitBlock(d,a)})},a.prototype.traverse=function(a,b,c,d){var e=this;void 0===c&&(c=this.vars[0]),void 0===d&&(d=null),c.visitNeighbours(d,function(d,f){b.push(a(d)),e.traverse(a,b,f,c)})},a.prototype.findMinLM=function(){var a=null;return this.compute_lm(this.vars[0],null,function(b){!b.equality&&(null===a||b.lm<a.lm)&&(a=b)}),a},a.prototype.findMinLMBetween=function(a,b){this.compute_lm(a,null,function(){});var c=null;return this.findPath(a,null,b,function(a,b){!a.equality&&a.right===b&&(null===c||a.lm<c.lm)&&(c=a)}),c},a.prototype.findPath=function(a,b,c,d){var e=this,f=!1;return a.visitNeighbours(b,function(b,g){f||g!==c&&!e.findPath(g,a,c,d)||(f=!0,d(b,g))}),f},a.prototype.isActiveDirectedPathBetween=function(a,b){if(a===b)return!0;for(var c=a.cOut.length;c--;){var d=a.cOut[c];if(d.active&&this.isActiveDirectedPathBetween(d.right,b))return!0}return!1},a.split=function(b){return b.active=!1,[a.createSplitBlock(b.left),a.createSplitBlock(b.right)]},a.createSplitBlock=function(b){var c=new a(b);return c.populateSplitBlock(b,null),c},a.prototype.splitBetween=function(b,c){var d=this.findMinLMBetween(b,c);if(null!==d){var e=a.split(d);return{constraint:d,lb:e[0],rb:e[1]}}return null},a.prototype.mergeAcross=function(a,b,c){b.active=!0;for(var d=0,e=a.vars.length;d<e;++d){var f=a.vars[d];f.offset+=c,this.addVariable(f)}this.posn=this.ps.getPosn()},a.prototype.cost=function(){for(var a=0,b=this.vars.length;b--;){var c=this.vars[b],d=c.position()-c.desiredPosition;a+=d*d*c.weight}return a},a}();c.Block=h;var i=function(){function a(a){this.vs=a;var b=a.length;for(this.list=new Array(b);b--;){var c=new h(a[b]);this.list[b]=c,c.blockInd=b}}return a.prototype.cost=function(){for(var a=0,b=this.list.length;b--;)a+=this.list[b].cost();return a},a.prototype.insert=function(a){a.blockInd=this.list.length,this.list.push(a)},a.prototype.remove=function(a){var b=this.list.length-1,c=this.list[b];this.list.length=b,a!==c&&(this.list[a.blockInd]=c,c.blockInd=a.blockInd)},a.prototype.merge=function(a){var b=a.left.block,c=a.right.block,d=a.right.offset-a.left.offset-a.gap;b.vars.length<c.vars.length?(c.mergeAcross(b,a,d),this.remove(b)):(b.mergeAcross(c,a,-d),this.remove(c))},a.prototype.forEach=function(a){this.list.forEach(a)},a.prototype.updateBlockPositions=function(){this.list.forEach(function(a){return a.updateWeightedPosition()})},a.prototype.split=function(a){var b=this;this.updateBlockPositions(),this.list.forEach(function(c){var d=c.findMinLM();null!==d&&d.lm<j.LAGRANGIAN_TOLERANCE&&(c=d.left.block,h.split(d).forEach(function(a){return b.insert(a)}),b.remove(c),a.push(d))})},a}();c.Blocks=i;var j=function(){function a(a,b){this.vs=a,this.cs=b,this.vs=a,a.forEach(function(a){a.cIn=[],a.cOut=[]}),this.cs=b,b.forEach(function(a){a.left.cOut.push(a),a.right.cIn.push(a)}),this.inactive=b.map(function(a){return a.active=!1,a}),this.bs=null}return a.prototype.cost=function(){return this.bs.cost()},a.prototype.setStartingPositions=function(a){this.inactive=this.cs.map(function(a){return a.active=!1,a}),this.bs=new i(this.vs),this.bs.forEach(function(b,c){return b.posn=a[c]})},a.prototype.setDesiredPositions=function(a){this.vs.forEach(function(b,c){return b.desiredPosition=a[c]})},a.prototype.mostViolated=function(){for(var b=Number.MAX_VALUE,c=null,d=this.inactive,e=d.length,f=e,g=0;g<e;++g){var h=d[g];if(!h.unsatisfiable){var i=h.slack();if((h.equality||i<b)&&(b=i,c=h,f=g,h.equality))break}}return f!==e&&(b<a.ZERO_UPPERBOUND&&!c.active||c.equality)&&(d[f]=d[e-1],d.length=e-1),c},a.prototype.satisfy=function(){null==this.bs&&(this.bs=new i(this.vs)),this.bs.split(this.inactive);for(var b=null;(b=this.mostViolated())&&(b.equality||b.slack()<a.ZERO_UPPERBOUND&&!b.active);){var c=b.left.block,d=b.right.block;if(c!==d)this.bs.merge(b);else{if(c.isActiveDirectedPathBetween(b.right,b.left)){b.unsatisfiable=!0;continue}var e=c.splitBetween(b.left,b.right);if(null===e){b.unsatisfiable=!0;continue}this.bs.insert(e.lb),this.bs.insert(e.rb),this.bs.remove(c),this.inactive.push(e.constraint),b.slack()>=0?this.inactive.push(b):this.bs.merge(b)}}},a.prototype.solve=function(){this.satisfy();for(var a=Number.MAX_VALUE,b=this.bs.cost();Math.abs(a-b)>1e-4;)this.satisfy(),a=b,b=this.bs.cost();return b},a}();j.LAGRANGIAN_TOLERANCE=-1e-4,j.ZERO_UPPERBOUND=-1e-10,c.Solver=j,c.removeOverlapInOneDimension=d},{}]},{},[1])(1)});
//# sourceMappingURL=cola.min.js.map

index.html

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <script src="cola.min.js"></script>
  <style>
    .link {
      stroke: #ccc;
      stroke-width: 2px;
      stroke-opacity: 1;
    }
    .node {
      stroke: #000000;
      stroke-width: 2px;
      stroke-opacity: 1;
      cursor: move;
    }
    
    .label {
			text-anchor: middle;
      cursor: move;
    }
  </style>
</head>

<body>
  <script>
    const width = 960;
    const height = 500;
    const d3cola = cola.d3adaptor(d3)
      .linkDistance(120)
      .avoidOverlaps(true)
		  .size([width, height]);
    
    const nodes = [
      {id: 'foo', width: 44, height: 20},
      {id: 'bar', width: 44, height: 20},
      {id: 'baz', width: 44, height: 20}
    ];
    
    const links = [
      {source: 0, target: 1},
      {source: 1, target: 2}
    ];
       
    const svg = d3.select('body').append('svg')
	    .attr('width', width)
  	  .attr('height', height);
		
    d3cola.nodes(nodes).links(links).start();

    const link = svg.selectAll('.link')
    	.data(links)
      .enter()
    	.append('line')
      .attr('class', 'link');

		const node = svg.selectAll('.node')
    	.data(nodes)
    	.enter().append('rect')
    	.attr('class', 'node')
    	.attr('width', d => d.width)
    	.attr('height', d => d.height)
    	.attr('rx', 5)
	    .attr('ry', 5)
    	.style('fill', '#a496c0')
    	.call(d3cola.drag);
    
    const label = svg.selectAll('.label')
    .data(nodes)
    .enter().append('text')
    .attr('class', 'label')
    .text(d => d.id)
    .call(d3cola.drag);
    
    node.append('title')
    	.text(d => d.id);
    
    d3cola.on('tick', () => {

      link.attr("x1", function (d) { return d.source.x; })
        .attr("y1", function (d) { return d.source.y; })
        .attr("x2", function (d) { return d.target.x; })
        .attr("y2", function (d) { return d.target.y; });

      node.attr("x", function (d) { return d.x - d.width / 2; })
        .attr("y", function (d) { return d.y - d.height / 2; });

      label.attr("x", function (d) { return d.x; })
        .attr("y", function (d) {
        var h = this.getBBox().height;
        return d.y + h/4;
      });
    });    
  </script>
</body>