bezier.js

var Bezier=function(t){function n(i){if(r[i])return r[i].exports;var e=r[i]={exports:{},id:i,loaded:!1};return t[i].call(e.exports,e,e.exports,n),e.loaded=!0,e.exports}var r={};return n.m=t,n.c=r,n.p="",n(0)}([function(t,n,r){"use strict";t.exports=r(1)},function(t,n,r){"use strict";var i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol?"symbol":typeof t};!function(){function n(t,n,r,i,e){"undefined"==typeof e&&(e=.5);var o=y.projectionratio(e,t),s=1-o,u={x:o*n.x+s*i.x,y:o*n.y+s*i.y},a=y.abcratio(e,t),f={x:r.x+(r.x-u.x)/a,y:r.y+(r.y-u.y)/a};return{A:f,B:r,C:u}}var e=Math.abs,o=Math.min,s=Math.max,u=Math.cos,a=Math.sin,f=Math.acos,c=Math.sqrt,h=Math.PI,x={x:0,y:0,z:0},y=r(2),p=r(3),l=function(t){var n=t&&t.forEach?t:[].slice.call(arguments),r=!1;if("object"===i(n[0])){r=n.length;var o=[];n.forEach(function(t){["x","y","z"].forEach(function(n){"undefined"!=typeof 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u=[o.x*o.x,o.x*o.y-o.z,o.x*o.z+o.y,o.x*o.y+o.z,o.y*o.y,o.y*o.z-o.x,o.x*o.z-o.y,o.y*o.z+o.x,o.z*o.z],a={x:u[0]*n.x+u[1]*n.y+u[2]*n.z,y:u[3]*n.x+u[4]*n.y+u[5]*n.z,z:u[6]*n.x+u[7]*n.y+u[8]*n.z};return a},hull:function(t){var n,r=this.points,i=[],e=[],o=0,s=0,u=0;for(e[o++]=r[0],e[o++]=r[1],e[o++]=r[2],3===this.order&&(e[o++]=r[3]);r.length>1;){for(i=[],s=0,u=r.length-1;u>s;s++)n=y.lerp(t,r[s],r[s+1]),e[o++]=n,i.push(n);r=i}return e},split:function(t,n){if(0===t&&n)return this.split(n).left;if(1===n)return this.split(t).right;var r=this.hull(t),i={left:new l(2===this.order?[r[0],r[3],r[5]]:[r[0],r[4],r[7],r[9]]),right:new l(2===this.order?[r[5],r[4],r[2]]:[r[9],r[8],r[6],r[3]]),span:r};if(i.left._t1=y.map(0,0,1,this._t1,this._t2),i.left._t2=y.map(t,0,1,this._t1,this._t2),i.right._t1=y.map(t,0,1,this._t1,this._t2),i.right._t2=y.map(1,0,1,this._t1,this._t2),!n)return i;n=y.map(n,t,1,0,1);var e=i.right.split(n);return e.left},extrema:function(){var t,n,r=this.dims,i={},e=[];return 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t=y.angle(this.points[0],this.points[3],this.points[1]),n=y.angle(this.points[0],this.points[3],this.points[2]);if(t>0&&0>n||0>t&&n>0)return!1}var r=this.normal(0),i=this.normal(1),o=r.x*i.x+r.y*i.y;this._3d&&(o+=r.z*i.z);var s=e(f(o));return h/3>s},reduce:function(){var t,n,r=0,i=0,o=.01,s=[],u=[],a=this.extrema().values;for(-1===a.indexOf(0)&&(a=[0].concat(a)),-1===a.indexOf(1)&&a.push(1),r=a[0],t=1;t<a.length;t++)i=a[t],n=this.split(r,i),n._t1=r,n._t2=i,s.push(n),r=i;return s.forEach(function(t){for(r=0,i=0;1>=i;)for(i=r+o;1+o>=i;i+=o)if(n=t.split(r,i),!n.simple()){if(i-=o,e(r-i)<o)return[];n=t.split(r,i),n._t1=y.map(r,0,1,t._t1,t._t2),n._t2=y.map(i,0,1,t._t1,t._t2),u.push(n),r=i;break}1>r&&(n=t.split(r,1),n._t1=y.map(r,0,1,t._t1,t._t2),n._t2=t._t2,u.push(n))}),u},scale:function(t){var n=this.order,r=!1;if("function"==typeof t&&(r=t),r&&2===n)return this.raise().scale(r);var 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