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t=e.from,o=e.to,i=e.length<0?n.springLength:e.length,a=o.pos.x-t.pos.x,u=o.pos.y-t.pos.y,s=Math.sqrt(a*a+u*u);0===s&&(a=(r.nextDouble()-.5)/50,u=(r.nextDouble()-.5)/50,s=Math.sqrt(a*a+u*u));var f=s-i,c=(!e.coeff||e.coeff<0?n.springCoeff:e.coeff)*f/s*e.weight;t.force.x+=c*a,t.force.y+=c*u,o.force.x-=c*a,o.force.y-=c*u}};return o(n,i,["springCoeff","springLength"]),i}},{"ngraph.expose":8,"ngraph.merge":13,"ngraph.random":26}],22:[function(e,n,t){function r(e,n){return 0===n?e.quad0:1===n?e.quad1:2===n?e.quad2:3===n?e.quad3:null}function o(e,n,t){0===n?e.quad0=t:1===n?e.quad1=t:2===n?e.quad2=t:3===n&&(e.quad3=t)}n.exports=function(n){function t(){var e=h[m];return e?(e.quad0=null,e.quad1=null,e.quad2=null,e.quad3=null,e.body=null,e.mass=e.massX=e.massY=0,e.left=e.right=e.top=e.bottom=0):(e=new f,h[m]=e),++m,e}function i(e){var n,t,r,o,i=p,a=0,u=0,f=1,c=0,d=1;for(i[0]=y;f;){var v=i[c],h=v.body;f-=1,c+=1;var m=h!==e;h&&m?(t=h.pos.x-e.pos.x,r=h.pos.y-e.pos.y,o=Math.sqrt(t*t+r*r),0===o&&(t=(s.nextDouble()-.5)/50,r=(s.nextDouble()-.5)/50,o=Math.sqrt(t*t+r*r)),n=l*h.mass*e.mass/(o*o*o),a+=n*t,u+=n*r):m&&(t=v.massX/v.mass-e.pos.x,r=v.massY/v.mass-e.pos.y,o=Math.sqrt(t*t+r*r),0===o&&(t=(s.nextDouble()-.5)/50,r=(s.nextDouble()-.5)/50,o=Math.sqrt(t*t+r*r)),(v.right-v.left)/o<g?(n=l*v.mass*e.mass/(o*o*o),a+=n*t,u+=n*r):(v.quad0&&(i[d]=v.quad0,f+=1,d+=1),v.quad1&&(i[d]=v.quad1,f+=1,d+=1),v.quad2&&(i[d]=v.quad2,f+=1,d+=1),v.quad3&&(i[d]=v.quad3,f+=1,d+=1)))}e.force.x+=a,e.force.y+=u}function a(e){var n,r=Number.MAX_VALUE,o=Number.MAX_VALUE,i=Number.MIN_VALUE,a=Number.MIN_VALUE,s=e.length;for(n=s;n--;){var f=e[n].pos.x,c=e[n].pos.y;f<r&&(r=f),f>i&&(i=f),c<o&&(o=c),c>a&&(a=c)}var d=i-r,l=a-o;for(d>l?a=o+d:i=r+l,m=0,y=t(),y.left=r,y.right=i,y.top=o,y.bottom=a,n=s-1,n>=0&&(y.body=e[n]);n--;)u(e[n],y)}function u(e){for(v.reset(),v.push(y,e);!v.isEmpty();){var n=v.pop(),i=n.node,a=n.body;if(i.body){var 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e.theta&&(g=e.theta),this):{gravity:l,theta:g}}}}},{"./insertStack":23,"./isSamePosition":24,"./node":25,"ngraph.random":26}],23:[function(e,n,t){function r(){this.stack=[],this.popIdx=0}function o(e,n){this.node=e,this.body=n}n.exports=r,r.prototype={isEmpty:function(){return 0===this.popIdx},push:function(e,n){var t=this.stack[this.popIdx];t?(t.node=e,t.body=n):this.stack[this.popIdx]=new o(e,n),++this.popIdx},pop:function(){if(this.popIdx>0)return this.stack[--this.popIdx]},reset:function(){this.popIdx=0}}},{}],24:[function(e,n,t){n.exports=function(e,n){var t=Math.abs(e.x-n.x),r=Math.abs(e.y-n.y);return t<1e-8&&r<1e-8}},{}],25:[function(e,n,t){n.exports=function(){this.body=null,this.quad0=null,this.quad1=null,this.quad2=null,this.quad3=null,this.mass=0,this.massX=0,this.massY=0,this.left=0,this.top=0,this.bottom=0,this.right=0}},{}],26:[function(e,n,t){function r(e){var n="number"==typeof e?e:+new Date,t=function(){return n=n+2127912214+(n<<12)&4294967295,n=4294967295&(3345072700^n^n>>>19),n=n+374761393+(n<<5)&4294967295,n=4294967295&(n+3550635116^n<<9),n=n+4251993797+(n<<3)&4294967295,n=4294967295&(3042594569^n^n>>>16),(268435455&n)/268435456};return{next:function(e){return Math.floor(t()*e)},nextDouble:function(){return t()}}}function o(e,n){var t=n||r();if("function"!=typeof t.next)throw new Error("customRandom does not match expected API: next() function is missing");return{forEach:function(n){var r,o,i;for(r=e.length-1;r>0;--r)o=t.next(r+1),i=e[o],e[o]=e[r],e[r]=i,n(i);e.length&&n(e[0])},shuffle:function(){var n,r,o;for(n=e.length-1;n>0;--n)r=t.next(n+1),o=e[r],e[r]=e[n],e[n]=o;return e}}}n.exports={random:r,randomIterator:o}},{}],27:[function(e,n,t){function r(e,n,t){function r(e){u.nodes.push(s(e))}function o(e){u.links.push(f(e))}function i(e){var n={id:e.id};return void 0!==e.data&&(n.data=e.data),n}function a(e){var n={fromId:e.fromId,toId:e.toId};return void 0!==e.data&&(n.data=e.data),n}var 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mediump float;","varying vec4 color;","void main(void) {","   gl_FragColor = color;","}"].join("\n"),E=["attribute vec3 a_vertexPos;","attribute vec4 a_color;","uniform vec2 u_screenSize;","uniform mat4 u_transform;","varying vec4 color;","void main(void) {","   gl_Position = u_transform * vec4(a_vertexPos.xy/u_screenSize, 0, 1);","   gl_PointSize = a_vertexPos.z * u_transform[0][0];","   color = a_color.abgr;","}"].join("\n"),L=new ArrayBuffer(16*w),N=new Float32Array(L),P=new Uint32Array(L),k=0;return{load:n,position:t,updateTransform:r,updateSize:i,removeNode:a,createNode:u,replaceProperties:s,render:f}}var o=e("./webgl.js");n.exports=r},{"./webgl.js":53}],61:[function(e,n,t){function r(e,n){return{size:"number"==typeof e?e:10,color:o(n)}}var o=e("./parseColor.js");n.exports=r},{"./parseColor.js":51}],62:[function(e,n,t){n.exports="0.8.1"},{}]},{},[1])(1)});