portal/static/unbound_reservation_static/lib/jsBezier-0.6-min.js

   1 (function(){"undefined"==typeof Math.sgn&&(Math.sgn=function(a){return 0==a?0:0<a?1:-1});var q={subtract:function(a,b){return{x:a.x-b.x,y:a.y-b.y}},dotProduct:function(a,b){return a.x*b.x+a.y*b.y},square:function(a){return Math.sqrt(a.x*a.x+a.y*a.y)},scale:function(a,b){return{x:a.x*b,y:a.y*b}}},B=Math.pow(2,-65),x=function(a,b){for(var f=[],d=b.length-1,g=2*d-1,h=[],e=[],m=[],k=[],l=[[1,0.6,0.3,0.1],[0.4,0.6,0.6,0.4],[0.1,0.3,0.6,1]],c=0;c<=d;c++)h[c]=q.subtract(b[c],a);for(c=0;c<=d-1;c++)e[c]=q.subtract(b[c+
   2 1],b[c]),e[c]=q.scale(e[c],3);for(c=0;c<=d-1;c++)for(var n=0;n<=d;n++)m[c]||(m[c]=[]),m[c][n]=q.dotProduct(e[c],h[n]);for(c=0;c<=g;c++)k[c]||(k[c]=[]),k[c].y=0,k[c].x=parseFloat(c)/g;g=d-1;for(h=0;h<=d+g;h++){c=Math.max(0,h-g);for(e=Math.min(h,d);c<=e;c++)j=h-c,k[c+j].y+=m[j][c]*l[j][c]}d=b.length-1;k=u(k,2*d-1,f,0);g=q.subtract(a,b[0]);m=q.square(g);for(c=l=0;c<k;c++)g=q.subtract(a,v(b,d,f[c],null,null)),g=q.square(g),g<m&&(m=g,l=f[c]);g=q.subtract(a,b[d]);g=q.square(g);g<m&&(m=g,l=1);return{location:l,
   3 distance:m}},u=function(a,b,f,d){var g=[],h=[],e=[],m=[],k=0,l,c;c=Math.sgn(a[0].y);for(var n=1;n<=b;n++)l=Math.sgn(a[n].y),l!=c&&k++,c=l;switch(k){case 0:return 0;case 1:if(64<=d)return f[0]=(a[0].x+a[b].x)/2,1;var r,p,k=a[0].y-a[b].y;c=a[b].x-a[0].x;n=a[0].x*a[b].y-a[b].x*a[0].y;l=max_distance_below=0;for(r=1;r<b;r++)p=k*a[r].x+c*a[r].y+n,p>l?l=p:p<max_distance_below&&(max_distance_below=p);p=c;r=0*p-1*k;l=(1*(n-l)-0*p)*(1/r);p=c;c=n-max_distance_below;r=0*p-1*k;k=(1*c-0*p)*(1/r);c=Math.min(l,k);
   4 if(Math.max(l,k)-c<B)return e=a[b].x-a[0].x,m=a[b].y-a[0].y,f[0]=0+1*(e*(a[0].y-0)-m*(a[0].x-0))*(1/(0*e-1*m)),1}v(a,b,0.5,g,h);a=u(g,b,e,d+1);b=u(h,b,m,d+1);for(d=0;d<a;d++)f[d]=e[d];for(d=0;d<b;d++)f[d+a]=m[d];return a+b},v=function(a,b,f,d,g){for(var h=[[]],e=0;e<=b;e++)h[0][e]=a[e];for(a=1;a<=b;a++)for(e=0;e<=b-a;e++)h[a]||(h[a]=[]),h[a][e]||(h[a][e]={}),h[a][e].x=(1-f)*h[a-1][e].x+f*h[a-1][e+1].x,h[a][e].y=(1-f)*h[a-1][e].y+f*h[a-1][e+1].y;if(null!=d)for(e=0;e<=b;e++)d[e]=h[e][0];if(null!=g)for(e=
   5 0;e<=b;e++)g[e]=h[b-e][e];return h[b][0]},y={},s=function(a,b){var f,d=a.length-1;f=y[d];if(!f){f=[];var g=function(a){return function(){return a}},h=function(){return function(a){return a}},e=function(){return function(a){return 1-a}},m=function(a){return function(b){for(var c=1,d=0;d<a.length;d++)c*=a[d](b);return c}};f.push(new function(){return function(a){return Math.pow(a,d)}});for(var k=1;k<d;k++){for(var l=[new g(d)],c=0;c<d-k;c++)l.push(new h);for(c=0;c<k;c++)l.push(new e);f.push(new m(l))}f.push(new function(){return function(a){return Math.pow(1-
   6 a,d)}});y[d]=f}for(e=h=g=0;e<a.length;e++)g+=a[e].x*f[e](b),h+=a[e].y*f[e](b);return{x:g,y:h}},z=function(a,b){return Math.sqrt(Math.pow(a.x-b.x,2)+Math.pow(a.y-b.y,2))},A=function(a){return a[0].x==a[1].x&&a[0].y==a[1].y},t=function(a,b,f){if(A(a))return{point:a[0],location:b};for(var d=s(a,b),g=0,h=0<f?1:-1,e=null;g<Math.abs(f);)b+=0.005*h,e=s(a,b),g+=z(e,d),d=e;return{point:e,location:b}},w=function(a,b){var f=s(a,b),d=s(a.slice(0,a.length-1),b),g=d.y-f.y,f=d.x-f.x;return 0==g?Infinity:Math.atan(g/
   7 f)};window.jsBezier={distanceFromCurve:x,gradientAtPoint:w,gradientAtPointAlongCurveFrom:function(a,b,f){b=t(a,b,f);1<b.location&&(b.location=1);0>b.location&&(b.location=0);return w(a,b.location)},nearestPointOnCurve:function(a,b){var f=x(a,b);return{point:v(b,b.length-1,f.location,null,null),location:f.location}},pointOnCurve:s,pointAlongCurveFrom:function(a,b,f){return t(a,b,f).point},perpendicularToCurveAt:function(a,b,f,d){b=t(a,b,null==d?0:d);a=w(a,b.location);d=Math.atan(-1/a);a=f/2*Math.sin(d);
   8 f=f/2*Math.cos(d);return[{x:b.point.x+f,y:b.point.y+a},{x:b.point.x-f,y:b.point.y-a}]},locationAlongCurveFrom:function(a,b,f){return t(a,b,f).location},getLength:function(a){if(A(a))return 0;for(var b=s(a,0),f=0,d=0,g=null;1>d;)d+=0.005,g=s(a,d),f+=z(g,b),b=g;return f}}})();