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@@ -1,32 +1,19 @@
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// pnltri.js / raw.github.com/jahting/pnltri.js/master/LICENSE
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-'use strict';var PNLTRI={REVISION:"1.4"};PNLTRI.Math={log2:function(a){return Math.log(a)/Math.LN2},random:Math.random,array_shuffle:function(a){for(var c=a.length-1;0<c;c--){var b=Math.floor(PNLTRI.Math.random()*(c+1)),d=a[c];a[c]=a[b];a[b]=d}return a},ptsCrossProd:function(a,c,b){return(c.x-a.x)*(b.y-a.y)-(c.y-a.y)*(b.x-a.x)}};PNLTRI.Math.EPSILON_P=Math.pow(2,-43);PNLTRI.Math.EPSILON_N=-PNLTRI.Math.EPSILON_P;PNLTRI.PolygonData=function(a){this.vertices=[];this.segments=[];this.idNextPolyChain=0;this.PolyLeftArr=[];this.monoSubPolyChains=[];this.triangles=[];if(a)for(var c=0,b=a.length;c<b;c++)this.addPolygonChain(a[c])};
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-PNLTRI.PolygonData.prototype={constructor:PNLTRI.PolygonData,getSegments:function(){return this.segments},getFirstSegment:function(){return this.segments[0]},getMonoSubPolys:function(){return this.monoSubPolyChains},getTriangles:function(){return this.triangles.concat()},nbPolyChains:function(){return this.idNextPolyChain},get_PolyLeftArr:function(){return this.PolyLeftArr.concat()},set_PolyLeft_wrong:function(a){this.PolyLeftArr[a]=!1},compare_pts_yx:function(a,c){var b=a.y-c.y;if(b<PNLTRI.Math.EPSILON_N)return-1;
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-if(b>PNLTRI.Math.EPSILON_P)return 1;b=a.x-c.x;return b<PNLTRI.Math.EPSILON_N?-1:b>PNLTRI.Math.EPSILON_P?1:0},isClockWise:function(a){var c=a,b=0;do b+=(c.vFrom.x-c.vTo.x)*(c.vFrom.y+c.vTo.y),c=c.snext;while(c!=a);return 0>b},appendVertexEntry:function(a,c){var b={id:this.vertices.length,x:a,y:c,outSegs:[]};this.vertices.push(b);return b},createSegmentEntry:function(a,c){return{chainId:this.idNextPolyChain,vFrom:a,vTo:c,upward:1==this.compare_pts_yx(c,a),sprev:null,snext:null,trLeft:null,trRight:null,
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-mprev:null,mnext:null,marked:!1}},appendSegmentEntry:function(a){this.segments.push(a);return a},addVertexChain:function(a){function c(a,b){return Math.abs(a.x-b.x)<PNLTRI.Math.EPSILON_P&&Math.abs(a.y-b.y)<PNLTRI.Math.EPSILON_P}for(var b=[],d,e,k,f=0;f<a.length;f++)d=this.appendVertexEntry(a[f].x,a[f].y),e=!0,k=b.length-1,0<=k&&c(d,b[k])&&(e=!1),e&&b.push(d);1<b.length&&c(b[b.length-1],b[0])&&b.pop();return b},addPolygonChain:function(a){a=this.addVertexChain(a);if(3>a.length)return console.log("Polygon has < 3 vertices!",
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-a),0;for(var c=this.segments.length,b,d,e,k=0;k<a.length-1;k++)b=this.createSegmentEntry(a[k],a[k+1]),e?(b.sprev=e,e.snext=b):d=b,e=b,this.appendSegmentEntry(b);b=this.createSegmentEntry(a[a.length-1],a[0]);b.sprev=e;e.snext=b;this.appendSegmentEntry(b);d.sprev=b;b.snext=d;this.PolyLeftArr[this.idNextPolyChain++]=!0;return this.segments.length-c},initMonoChains:function(){for(var a,c=0;c<this.segments.length;c++)a=this.segments[c],this.PolyLeftArr[a.chainId]?(a.mprev=a.sprev,a.mnext=a.snext,a.vFrom.outSegs.push({segOut:a,
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-vertTo:a.vTo})):(a=a.snext,a.mprev=a.snext,a.mnext=a.sprev,a.vFrom.outSegs.push({segOut:a,vertTo:this.segments[c].vFrom}))},createMonoSegment:function(a){this.appendSegmentEntry(a);a.vFrom.outSegs.push({segOut:a,vertTo:a.vTo});return a},newMonoChain:function(a){var c=this.monoSubPolyChains.length;this.monoSubPolyChains[c]=a;return c},splitPolygonChain:function(a,c,b,d){function e(a,b){for(var c,d,e=null,k=4,h=0;h<a.outSegs.length;h++){c=a.outSegs[h];var f=c.vertTo;d=f.x-a.x;var f=f.y-a.y,l=b.x-a.x,
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-t=b.y-a.y,v=(d*l+f*t)/Math.sqrt(d*d+f*f)/Math.sqrt(l*l+t*t);(d=0<=d*t-l*f?1-v:3+v)<k&&(k=d,e=c)}return e}var k,f;k=e(c,b);f=e(b,c);k=k.segOut;var l=f.segOut;f=this.createMonoSegment({vFrom:c,vTo:b,upward:!0,mprev:k.mprev,mnext:l});c=this.createMonoSegment({vFrom:b,vTo:c,upward:!1,mprev:l.mprev,mnext:k});k.mprev.mnext=f;l.mprev.mnext=c;k.mprev=c;l.mprev=f;b=this.monoSubPolyChains.length;d?(this.monoSubPolyChains[a]=f,this.monoSubPolyChains[b]=c):(this.monoSubPolyChains[a]=c,this.monoSubPolyChains[b]=
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-f);return b},unique_monotone_chains_max:function(){for(var a,c,b,d,e,k=[],f=0;f<this.monoSubPolyChains.length;f++){a=c=this.monoSubPolyChains[f];d=e=a.vFrom;a.marked=!0;a=a.mnext;for(var l=!1;(b=a.vFrom)!=d;){if(a.marked){l=!0;break}else a.marked=!0;1==this.compare_pts_yx(b,e)&&(e=b,c=a);a=a.mnext}l||k.push(c)}return k},normalize_monotone_chains:function(){this.monoSubPolyChains=this.unique_monotone_chains_max();return this.monoSubPolyChains.length},clearTriangles:function(){this.triangles=[]},addTriangle:function(a,
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-c,b){this.triangles.push([a.id,c.id,b.id])}};PNLTRI.EarClipTriangulator=function(a){this.polyData=a};
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-PNLTRI.EarClipTriangulator.prototype={constructor:PNLTRI.EarClipTriangulator,triangulate_polygon_no_holes:function(){var a=this.polyData,c=a.getFirstSegment(),b=c;if(a.isClockWise(c)){do b.mprev=b.snext,b=b.mnext=b.sprev;while(b!=c);a.set_PolyLeft_wrong(0)}else{do b.mprev=b.sprev,b=b.mnext=b.snext;while(b!=c)}for(c=a=c;a.mnext!=a.mprev;){a:{var b=a.mprev.vFrom.x,d=a.mprev.vFrom.y,e=a.vFrom.x,k=a.vFrom.y,f=a.mnext.vFrom.x,l=a.mnext.vFrom.y,n=f-e,p=l-k,q=b-f,u=d-l,g=e-b,m=k-d;if(PNLTRI.Math.EPSILON_P>
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-g*p-n*m)b=!1;else{for(var h=a.mprev.mprev,s=a.mnext;s!=h;){var s=s.mnext,r=s.vFrom.x,t=s.vFrom.y,v=r-b,w=t-d;if(0!=v||0!=w){var x=r-e,y=t-k;if(0!=x||0!=y)if(r-=f,t-=l,(0!=r||0!=t)&&n*y-p*x>=PNLTRI.Math.EPSILON_N&&g*w-m*v>=PNLTRI.Math.EPSILON_N&&q*t-u*r>=PNLTRI.Math.EPSILON_N){b=!1;break a}}}b=!0}}if(b)this.polyData.addTriangle(a.mprev.vFrom,a.vFrom,a.mnext.vFrom),a.mprev.mnext=a.mnext,a.mnext.mprev=a.mprev,c=a=a.mnext;else if(a=a.mnext,a==c)return!1}return!0}};PNLTRI.Trapezoid=function(a,c,b,d){this.vHigh=a?a:{x:Number.POSITIVE_INFINITY,y:Number.POSITIVE_INFINITY};this.vLow=c?c:{x:Number.NEGATIVE_INFINITY,y:Number.NEGATIVE_INFINITY};this.lseg=b;this.rseg=d;this.depth=-1;this.monoDone=!1};
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-PNLTRI.Trapezoid.prototype={constructor:PNLTRI.Trapezoid,clone:function(){var a=new PNLTRI.Trapezoid(this.vHigh,this.vLow,this.lseg,this.rseg);a.uL=this.uL;a.uR=this.uR;a.dL=this.dL;a.dR=this.dR;a.sink=this.sink;return a},splitOffLower:function(a){var c=this.clone();this.vLow=c.vHigh=a;this.dL=c;c.uL=this;this.dR=c.uR=null;c.dL&&(c.dL.uL=c);c.dR&&(c.dR.uR=c);return c}};PNLTRI.QsNode=function(a){this.trap=a;a.sink=this};PNLTRI.QsNode.prototype={constructor:PNLTRI.QsNode};
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-PNLTRI.QueryStructure=function(a){var c=new PNLTRI.Trapezoid(null,null,null,null);this.trapArray=[];this.appendTrapEntry(c);this.root=new PNLTRI.QsNode(c);if(a){for(var c=a.getSegments(),b=0;b<c.length;b++)c[b].rootFrom=c[b].rootTo=this.root,c[b].is_inserted=!1;this.compare_pts_yx=a.compare_pts_yx}else this.compare_pts_yx=PNLTRI.PolygonData.prototype.compare_pts_yx};
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-PNLTRI.QueryStructure.prototype={constructor:PNLTRI.QueryStructure,getRoot:function(){return this.root},appendTrapEntry:function(a){a.trapID=this.trapArray.length;this.trapArray.push(a)},cloneTrap:function(a){a=a.clone();this.appendTrapEntry(a);return a},splitNodeAtPoint:function(a,c,b){var d=a.trap;if(d.vHigh==c||d.vLow==c)return a;var e=d.splitOffLower(c);this.appendTrapEntry(e);a.yval=c;a.trap=null;a.right=new PNLTRI.QsNode(d);a.left=new PNLTRI.QsNode(e);return b?d.sink:e.sink},fpEqual:function(a,
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-c){return Math.abs(a-c)<PNLTRI.Math.EPSILON_P},is_left_of:function(a,c,b){b=a.vFrom.x-c.x;var d=a.vTo.x-c.x;if(Math.abs(a.vTo.y-c.y)<PNLTRI.Math.EPSILON_P)a=d,c=b;else if(Math.abs(a.vFrom.y-c.y)<PNLTRI.Math.EPSILON_P)a=b,c=d;else return a.upward?PNLTRI.Math.ptsCrossProd(a.vFrom,a.vTo,c):PNLTRI.Math.ptsCrossProd(a.vTo,a.vFrom,c);return Math.abs(a)<PNLTRI.Math.EPSILON_P?Math.abs(c)<PNLTRI.Math.EPSILON_P?0:c:a},ptNode:function(a,c,b){for(var d;b;)if(b.yval)d=a==b.yval?c:a,d=this.compare_pts_yx(d,b.yval),
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-b=-1==d?b.left:b.right;else if(b.seg)a==b.seg.vFrom||a==b.seg.vTo?this.fpEqual(a.y,c.y)?b=c.x<a.x?b.left:b.right:(d=this.is_left_of(b.seg,c,!1),b=0<d?b.left:0>d?b.right:a==b.seg.vFrom?b.right:b.left):(d=a,d=this.is_left_of(b.seg,d,!0),b=0<d?b.left:b.right);else return b.trap||console.log("ptNode: unknown type",b),b},add_segment:function(a){function c(){var a=g.uL||g.uR;a.dL&&a.dR?g==a.dL?(h.uL=null,a.dL=m):(m.uR=null,a.dR=h):(h.uL=null,h.uR=a,a.dR=h)}function b(a){g.vLow==u.vLow?(q?g.dL?(a.uL=m,m.dL=
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-a,h.dR=null):(a.uR=h,m.dL=null,h.dR=a):(a.uL=m,a.uR=h,m.dL=h.dR=a),m.dR=h.dL=null):(a.uL&&a.uR&&(a.uL==g?(a.usave=a.uR,a.uleft=!0):(a.usave=a.uL,a.uleft=!1)),a.uL=m,a.uR=h,m.dR=h.dL=a,m.dL=h.dR=null)}function d(){var b;g.vLow==u.vLow&&q?(g.dL.uL=m,g.dR.uR=h,m.dL=g.dL,h.dR=g.dR,b=m.dR=h.dL=null):(g.dL.uL=m,g.dR.uR=h,0<e.is_left_of(a,g.vLow,!0)?(b=g.dR,g.dR.uL=m,m.dL=g.dL,h.dR=null):(b=g.dL,g.dL.uR=h,h.dR=g.dR,m.dL=null),m.dR=h.dL=b);return b}var e=this,k,f,l,n,p,q;a.upward?(n=a.vFrom,k=a.vTo,p=a.rootFrom,
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-f=a.rootTo,q=a.sprev.is_inserted,l=a.snext.is_inserted):(n=a.vTo,k=a.vFrom,p=a.rootTo,f=a.rootFrom,q=a.snext.is_inserted,l=a.sprev.is_inserted);f=this.ptNode(k,n,f);l||(f=this.splitNodeAtPoint(f,k,!1));l=f.trap;if(l.uL||l.uR){f=this.ptNode(n,k,p);q||(f=this.splitNodeAtPoint(f,n,!0));var u=f.trap,g=l,m,h,s,r;for(k=this.trapArray.length+2;g;){if(0>--k){console.log("ERR add_segment: infinite loop",g,a,this);return}if(!g.dL&&!g.dR){console.log("ERR add_segment: missing successors",g,a,this);return}n=
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-g.sink;n.seg=a;n.trap=null;r&&r.rseg==g.rseg?(m=g,h=r,h.vLow=g.vLow,n.left=new PNLTRI.QsNode(m),n.right=r.sink):(s&&s.lseg==g.lseg?(h=g,m=s,m.vLow=g.vLow,n.left=s.sink):(m=g,h=this.cloneTrap(g),n.left=new PNLTRI.QsNode(m)),n.right=new PNLTRI.QsNode(h));g.uL&&g.uR?g.usave?(g.uleft?(h.uL=g.uR,h.uR=g.usave,h.uL.dL=h,h.uR.dR=h):(m.uR=g.uL,m.uL=g.usave,m.uL.dL=m,m.uR.dR=m),m.usave=h.usave=null):g.vHigh==l.vHigh?(h.uR.dR=h,m.uR=h.uL=null):h==g?(h.uL=h.uR,h.uR=null,h.uL.dL=h):(m.uR=m.uL,m.uL=null):c();g.dL&&
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-g.dR?n=d():(n=g.dL?g.dL:g.dR,b(n));m.rseg&&(m.rseg.trLeft=h);h.lseg&&(h.lseg.trRight=m);m.rseg=h.lseg=a;a.trLeft=m;a.trRight=h;g.vLow!=u.vLow?(s=m,r=h,g=n):g=null}a.is_inserted=!0}else console.log("ERR add_segment: missing trFirst.uX: ",l)},assignDepths:function(a){var c=[this.trapArray[0]],b=[],d,e,k=0;do{for(var f=1==k%2;d=c.pop();)-1==d.depth&&(d.depth=k,d.uL&&c.push(d.uL),d.uR&&c.push(d.uR),d.dL&&c.push(d.dL),d.dR&&c.push(d.dR),(e=d.lseg)&&-1==e.trLeft.depth&&b.push(e.trLeft),e=d.rseg)&&(-1==
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-e.trRight.depth&&b.push(e.trRight),e.upward!=f&&a.set_PolyLeft_wrong(e.chainId));c=b;b=[];k++}while(0<c.length)},find_first_inside:function(){for(var a,c=0,b=this.trapArray.length;c<b;c++)if(a=this.trapArray[c],1==a.depth%2&&!a.monoDone&&(!a.uL&&!a.uR||!a.dL&&!a.dR)&&a.lseg)return a;return null}};PNLTRI.Trapezoider=function(a){this.polyData=a;this.queryStructure=new PNLTRI.QueryStructure(this.polyData)};
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-PNLTRI.Trapezoider.prototype={constructor:PNLTRI.Trapezoider,find_first_inside:function(){return this.queryStructure.find_first_inside()},math_logstar_n:function(a){var c;for(c=0;1<=a;c++)a=PNLTRI.Math.log2(a);return c-1},math_NH:function(a,c){var b,d;b=0;for(d=a;b<c;b++)d=PNLTRI.Math.log2(d);return Math.ceil(1*a/d)-1},optimise_randomlist:function(a){var c=0,b=this.polyData.nbPolyChains();if(1!=b)for(var d=Array(b),e=a.concat(),k=0;k<e.length;k++){var f=e[k].chainId;d[f]?a[b++]=e[k]:(a[c++]=e[k],
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-d[f]=!0)}},trapezoide_polygon:function(){var a=this.polyData.getSegments().concat();PNLTRI.Math.array_shuffle(a);this.optimise_randomlist(a);var c=a.length,b=this.queryStructure,d,e,k,f=this.math_logstar_n(c);for(k=1;k<=f;k++){e=this.math_NH(c,k);for(d=this.math_NH(c,k-1);d<e;d++)b.add_segment(a[d]);for(d=e;d<c;d++)e=a[d],e.rootFrom=this.queryStructure.ptNode(e.vFrom,e.vTo,e.rootFrom),e.rootTo=this.queryStructure.ptNode(e.vTo,e.vFrom,e.rootTo)}for(d=this.math_NH(c,f);d<c;d++)b.add_segment(a[d]);b.assignDepths(this.polyData);
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-for(d=0;d<c;d++)a[d].trLeft=null,a[d].trRight=null}};PNLTRI.MonoSplitter=function(a){this.polyData=a;this.startTrap=this.trapezoider=null};
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-PNLTRI.MonoSplitter.prototype={constructor:PNLTRI.MonoSplitter,monotonate_trapezoids:function(){this.trapezoider=new PNLTRI.Trapezoider(this.polyData);this.trapezoider.trapezoide_polygon();this.startTrap=this.trapezoider.find_first_inside();this.polyData.initMonoChains();for(var a=this.startTrap;a;)this.alyTrap(this.polyData.newMonoChain(a.lseg),a,null,null,null),a=this.trapezoider.find_first_inside();return this.polyData.normalize_monotone_chains()},doSplit:function(a,c,b,d){return this.polyData.splitPolygonChain(a,
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-c,b,d)},alyTrap:function(a,c,b,d,e){function k(){var a;return(a=f.pop())?(l=a[0],n=a[1],p=a[2],q=a[3],!0):!1}var f=[],l,n,p,q,u;null==b&&(d=!0,c.uL?b=!0:c.dL?b=!1:(d=!1,b=c.uR?!0:!1));for(c&&f.push([c,b,d,a]);k();)if(!l.monoDone){l.monoDone=!0;if(!l.lseg||!l.rseg)return console.log("ERR alyTrap: lseg/rseg missing",l),f;n?p?(a=l.uL,c=l.uR,b=l.dL,d=l.dR):(a=l.uR,c=l.uL,b=l.dR,d=l.dL):p?(a=l.dL,c=l.dR,b=l.uL,d=l.uR):(a=l.dR,c=l.dL,b=l.uR,d=l.uL);if(c||d)u=this.doSplit(q,l.vLow,l.vHigh,p);d&&f.push([d,
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-n,!p,u]);c&&f.push([c,!n,!p,u]);b&&f.push([b,n,p,q]);b||d||a&&f.push([a,!n,p,q]);if(e)return f}return[]}};PNLTRI.MonoTriangulator=function(a){this.polyData=a};
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-PNLTRI.MonoTriangulator.prototype={constructor:PNLTRI.MonoTriangulator,triangulate_all_polygons:function(){var a=this.polyData.getMonoSubPolys();this.polyData.clearTriangles();for(var c=0;c<a.length;c++){var b=a[c],d=b.mprev,e=b.mnext;e.mnext==d?this.polyData.addTriangle(b.vFrom,e.vFrom,d.vFrom):this.triangulate_monotone_polygon(b)}},triangulate_monotone_polygon:function(a){var c=a.mnext;a=a.vFrom;var b=[c.vFrom],d=0,c=c.mnext,e=c.vFrom;if(e!=a){for(;e!=a||1<d;)if(0<d)if(0<PNLTRI.Math.ptsCrossProd(e,
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-b[d-1],b[d]))this.polyData.addTriangle(b[d-1],b[d],e),d--;else if(b[++d]=e,e==a)for(console.log("ERR uni-y-monotone: only concave angles left",b);1<d;)d--,this.polyData.addTriangle(b[d-1],b[d],b[d+1]);else c=c.mnext,e=c.vFrom;else b[++d]=e,c=c.mnext,e=c.vFrom;this.polyData.addTriangle(b[d-1],b[d],e)}}};PNLTRI.Triangulator=function(){this.lastPolyData=null};
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-PNLTRI.Triangulator.prototype={constructor:PNLTRI.Triangulator,clear_lastData:function(){this.lastPolyData=null},get_PolyLeftArr:function(){return this.lastPolyData?this.lastPolyData.get_PolyLeftArr():null},triangulate_polygon:function(a,c){this.clear_lastData();if(!a||0==a.length)return[];var b=new PNLTRI.PolygonData(a),d;d=c?!1:1==b.nbPolyChains();d&&(d=new PNLTRI.EarClipTriangulator(b),d=d.triangulate_polygon_no_holes());if(!d){(new PNLTRI.MonoSplitter(b)).monotonate_trapezoids();d=new PNLTRI.MonoTriangulator(b);
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-d.triangulate_all_polygons();d=b.getSegments();for(var e=0;e<d.length;e++)d[e].vFrom.outSegs=null}this.lastPolyData=b;return b.getTriangles()}};
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+'use strict';var r={ca:"2.0"};r.c={random:Math.random,da:function(b){for(var c=b.length-1;0<c;c--){var l=Math.floor(r.c.random()*(c+1)),k=b[c];b[c]=b[l];b[l]=k}return b},G:function(b,c){var l=b.y-c.y;if(l<r.c.D)return-1;if(l>r.c.n)return 1;l=b.x-c.x;return l<r.c.D?-1:l>r.c.n?1:0},N:function(b,c,l){return(c.x-b.x)*(l.y-b.y)-(c.y-b.y)*(l.x-b.x)}};r.c.n=Math.pow(2,-43);r.c.D=-r.c.n;function u(b){this.U=[];this.r=[];this.X=[];this.L=0;this.F=[];this.R=[];this.T=[];if(b)for(var c=0,l=b.length;c<l;c++){var k=w(this,b[c]);if(3>k.length)console.log("Polygon has < 3 vertices!",k);else{for(var a=void 0,e=void 0,d=void 0,f=0;f<k.length-1;f++)a=x(this,k[f],k[f+1]),d?(a.o=d,d.m=a):e=a,d=a,this.r.push(a);a=x(this,k[k.length-1],k[0]);a.o=d;d.m=a;this.r.push(a);e.o=a;a.m=e;this.F[this.L++]=!0}}}u.prototype={Q:function(){return this.F.concat()}};
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+I.prototype={P:function(b){var c,l,k=b.U.length,a=Array(k);for(c=0;c<k;c++)a[c]=Array(8);var e=Array(k);c=0;for(l=this.B.length;c<l;c++){var d=this.B[c],f=d.e?d.f?5:7:d.f?4:6,h=d.b?d.d?1:0:d.d?3:2;if(1==d.depth%2){if(5==f||1==h||7==f&&3==h||4==f&&0==h){var g;g={a:d.l,i:d.q,j:null,g:null,w:!1};b.X.push(g);var p;p={a:d.q,i:d.l,aa:g,j:null,g:null,w:!1};b.X.push(p);g.aa=p;a[d.l.id][h]=g;a[d.q.id][f]=p}}else null!=d.q.id&&(e[d.q.id]=f),null!=d.l.id&&(e[d.l.id]=h)}var t;for(c=0;c<k;c++)if(d=a[c],f=e[c],
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+function L(b,c){function l(){var a=m.e||m.f;a.b&&a.d?m==a.b?(n.e=null,a.b=q):(q.f=null,a.d=n):(n.e=null,n.f=a,a.d=n)}function k(a){m.l==t.l?(f?m.b?(a.e=q,q.b=a,n.d=null):(a.f=n,q.b=null,n.d=a):(a.e=q,a.f=n,q.b=n.d=a),q.d=n.b=null):(a.e&&a.f&&(a.e==m?(a.C=a.f,a.ba=!0):(a.C=a.e,a.ba=!1)),a.e=q,a.f=n,q.d=n.b=a,q.b=n.d=null)}function a(){var a;if(m.l==t.l&&f)m.b.e=q,m.d.f=n,q.b=m.b,n.d=m.d,a=q.d=n.b=null;else{m.b.e=q;m.d.f=n;var b=M(c,m.l);if(0<b)a=!0;else if(0>b)a=!1;else{a=m.b.s;var d=a.p,b=d?a.a:a.i,
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+b=M(c,b);0<b?a=!0:0>b?a=!1:(a=d?a.m:a.o,b=d?a.i:a.a,b=M(c,b),a=0<b?!0:!1)}a?(a=m.d,m.d.e=q,q.b=m.b,n.d=null):(a=m.b,m.b.f=n,n.d=m.d,q.b=null);q.d=n.b=a}return a}N(c);var e,d,f,h,g,p;c.p?(e=c.a,h=c.i,d=c.H,g=c.I,f=c.o.v,p=c.m.v):(e=c.i,h=c.a,d=c.I,g=c.H,f=c.m.v,p=c.o.v);p||(p=O(b,g,h,!1),g==d&&(d=p),g=p);g=g.A;if(g.e||g.f)if(g.q!=h)console.log("ERR add_segment: trFirstHigh != segHigh: ",g);else{f||(d=O(b,d,e,!0));var t=d.A,m=g,q,n,y,v;for(e=b.B.length+2;m;){if(0>--e){console.log("ERR add_segment: infinite loop",
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+m,c,b);return}if(!m.b&&!m.d){console.log("ERR add_segment: missing successors",m,c,b);return}d=m.u;d.h=c;d.A=null;v&&v.s==m.s?(q=m,n=v,n.l=m.l,d.left=new H(q),d.right=v.u):(y&&y.t==m.t?(n=m,q=y,q.l=m.l,d.left=y.u):(q=m,n=P(b,m),d.left=new H(q)),d.right=new H(n));m.e&&m.f?m.C?(m.ba?(n.e=m.f,n.f=m.C,n.e.b=n,n.f.d=n):(q.f=m.e,q.e=m.C,q.e.b=q,q.f.d=q),q.C=n.C=null):m.q==g.q?(n.f.d=n,q.f=n.e=null):n==m?(n.e=n.f,n.f=null,n.e.b=n):(q.f=q.e,q.e=null):l();m.b&&m.d?d=a():(d=m.b?m.b:m.d,k(d));q.s&&(q.s.J=n);
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+n.t&&(n.t.K=q);q.s=n.t=c;c.J=q;c.K=n;m.l!=t.l?(y=q,v=n,m=d):m=null}c.v=!0}else console.log("ERR add_segment: missing trFirst.uX: ",g)}
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+function Q(b,c){if(c)var l=b.a,k=b.i,a=b.H;else l=b.i,k=b.a,a=b.I;for(var e;a;)if(a.V)a=-1==r.c.G(l==a.V?k:l,a.V)?a.left:a.right;else if(a.h){if(l==a.h.a||l==a.h.i)if(Math.abs(l.y-k.y)<r.c.n){a=Math.abs(a.h.a.y-a.h.i.y)<r.c.n?l==a.h.a?((e=b.p?k.x>=a.h.i.x:k.x<a.h.i.x)?b.o.p:a.h.m.p)?a.right:a.left:((e=b.p?k.x<a.h.a.x:k.x>=a.h.a.x)?b.m.p:a.h.o.p)?a.left:a.right:k.x<l.x?a.left:a.right;continue}else e=M(a.h,k),0==e&&(e=l==a.h.a?(e=b.p?k.y>=a.h.i.y:k.y<a.h.i.y)?M(a.h,b.o.a):-M(a.h,a.h.m.i):(e=b.p?k.y<
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+d;h<d;){g=Math.log(g)/Math.LN2;for(p=1<g?Math.floor(d/g):d;h<p;h++)L(f,a[h]);for(p=h;p<d;p++)N(a[p])}var e=e.k,f=[f.B[0]],h=[],s,p=0;do{for(t=1==p%2;g=f.pop();)-1==g.depth&&(g.depth=p,g.e&&f.push(g.e),g.f&&f.push(g.f),g.b&&f.push(g.b),g.d&&f.push(g.d),(s=g.t)&&-1==s.J.depth&&h.push(s.J),s=g.s)&&(-1==s.K.depth&&h.push(s.K),s.p!=t&&(e.F[s.O]=!1));f=h;h=[];p++}while(0<f.length);for(p=0;p<d;p++)a[p].J=a[p].K=null;k.S.P();s=k.k;d=0;for(f=s.r.length;d<f;d++){a=s.r[d];s.F[a.O]?(e=a.i,a.j=a.o,a.g=a.m):(e=
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+a.a,a=a.m,a.j=a.m,a.g=a.o);if(h=a.a.Z)h.g=a,a.j=h,a.a.Z=null;if(h=e.Y)h.j=a,a.g=h,e.Y=null}s=k.k;s.R=[];k=0;for(a=s.r.length;k<a;k++)if(e=s.r[k],!e.w){a:{h=f=d=void 0;g=e;f=h=e.a;e.w=!0;for(e=e.g;d=e.a;){if(e.w){if(d==f)break;console.log("ERR unique_monotone: segment in two chains",f,e);e=null;break a}e.w=!0;1==r.c.G(d,h)&&(h=d,g=e);e=e.g}e=g}e&&s.R.push(e)}s=k=new X(l);k=s.k.R;s.k.T=[];for(a=0;a<k.length;a++)if(f=k[a],e=f.j,d=f.g,d.g==e)B(s.k,f.a,d.a,e.a);else if(e=s,d=f.g,f=f.a,h=[d.a],g=0,d=d.g,
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+p=d.a,p!=f){for(;p!=f||1<g;)if(0<g)if(t=r.c.N(h[g],p,h[g-1]),Math.abs(t)<=r.c.n&&(p==f||r.c.G(h[g],p)==r.c.G(h[g],h[g-1]))&&(t=1),0<t)B(e.k,h[g-1],h[g],p),g--;else if(h[++g]=p,p==f)for(console.log("ERR uni-y-monotone: only concave angles left",h);1<g;)g--,B(e.k,h[g-1],h[g],h[g+1]);else d=d.g,p=d.a;else h[++g]=p,d=d.g,p=d.a;B(e.k,h[g-1],h[g],p)}}this.M=l;return l.T.concat()}};window.PNLTRI=r;r.REVISION=r.ca;r.Math=r.c;r.Triangulator=Z;Z.prototype.clear_lastData=Z.prototype.W;Z.prototype.get_PolyLeftArr=Z.prototype.Q;Z.prototype.triangulate_polygon=Z.prototype.ea;
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Juergen Ahting