cornerstoneMath.min.js

/*! cornerstoneMath - v0.1.0 - 2014-05-06 | (c) 2014 Chris Hafey | https://github.com/chafey/cornerstoneMath */
var cornerstoneMath=function(a){"use strict";function b(a){return a*a}function c(a,c){return b(a.x-c.x)+b(a.y-c.y)}function d(a,b){var d=c(a.start,a.end);if(0===d)return c(b,a.start);var e=((b.x-a.start.x)*(a.end.x-a.start.x)+(b.y-a.start.y)*(a.end.y-a.start.y))/d;if(0>e)return c(b,a.start);if(e>1)return c(b,a.end);var f={x:a.start.x+e*(a.end.x-a.start.x),y:a.start.y+e*(a.end.y-a.start.y)};return c(b,f)}function e(a,b){return Math.sqrt(d(a,b))}return void 0===a&&(a={}),a.lineSegment={distanceToPoint:e},a}(cornerstoneMath),cornerstoneMath=function(a){"use strict";return void 0===a&&(a={}),a.Matrix4=function(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p){this.elements=new Float32Array(16);var q=this.elements;q[0]=void 0!==a?a:1,q[4]=b||0,q[8]=c||0,q[12]=d||0,q[1]=e||0,q[5]=void 0!==f?f:1,q[9]=g||0,q[13]=h||0,q[2]=i||0,q[6]=j||0,q[10]=void 0!==k?k:1,q[14]=l||0,q[3]=m||0,q[7]=n||0,q[11]=o||0,q[15]=void 0!==p?p:1},a.Matrix4.prototype.makeRotationFromQuaternion=function(a){var b=this.elements,c=a.x,d=a.y,e=a.z,f=a.w,g=c+c,h=d+d,i=e+e,j=c*g,k=c*h,l=c*i,m=d*h,n=d*i,o=e*i,p=f*g,q=f*h,r=f*i;return b[0]=1-(m+o),b[4]=k-r,b[8]=l+q,b[1]=k+r,b[5]=1-(j+o),b[9]=n-p,b[2]=l-q,b[6]=n+p,b[10]=1-(j+m),b[3]=0,b[7]=0,b[11]=0,b[12]=0,b[13]=0,b[14]=0,b[15]=1,this},a.Matrix4.prototype.multiplyMatrices=function(a,b){var c=a.elements,d=b.elements,e=this.elements,f=c[0],g=c[4],h=c[8],i=c[12],j=c[1],k=c[5],l=c[9],m=c[13],n=c[2],o=c[6],p=c[10],q=c[14],r=c[3],s=c[7],t=c[11],u=c[15],v=d[0],w=d[4],x=d[8],y=d[12],z=d[1],A=d[5],B=d[9],C=d[13],D=d[2],E=d[6],F=d[10],G=d[14],H=d[3],I=d[7],J=d[11],K=d[15];return e[0]=f*v+g*z+h*D+i*H,e[4]=f*w+g*A+h*E+i*I,e[8]=f*x+g*B+h*F+i*J,e[12]=f*y+g*C+h*G+i*K,e[1]=j*v+k*z+l*D+m*H,e[5]=j*w+k*A+l*E+m*I,e[9]=j*x+k*B+l*F+m*J,e[13]=j*y+k*C+l*G+m*K,e[2]=n*v+o*z+p*D+q*H,e[6]=n*w+o*A+p*E+q*I,e[10]=n*x+o*B+p*F+q*J,e[14]=n*y+o*C+p*G+q*K,e[3]=r*v+s*z+t*D+u*H,e[7]=r*w+s*A+t*E+u*I,e[11]=r*x+s*B+t*F+u*J,e[15]=r*y+s*C+t*G+u*K,this},a.Matrix4.prototype.multiply=function(a,b){return void 0!==b?(console.warn("DEPRECATED: Matrix4's .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(a,b)):this.multiplyMatrices(this,a)},a.Matrix4.prototype.getInverse=function(a,b){var c=this.elements,d=a.elements,e=d[0],f=d[4],g=d[8],h=d[12],i=d[1],j=d[5],k=d[9],l=d[13],m=d[2],n=d[6],o=d[10],p=d[14],q=d[3],r=d[7],s=d[11],t=d[15];c[0]=k*p*r-l*o*r+l*n*s-j*p*s-k*n*t+j*o*t,c[4]=h*o*r-g*p*r-h*n*s+f*p*s+g*n*t-f*o*t,c[8]=g*l*r-h*k*r+h*j*s-f*l*s-g*j*t+f*k*t,c[12]=h*k*n-g*l*n-h*j*o+f*l*o+g*j*p-f*k*p,c[1]=l*o*q-k*p*q-l*m*s+i*p*s+k*m*t-i*o*t,c[5]=g*p*q-h*o*q+h*m*s-e*p*s-g*m*t+e*o*t,c[9]=h*k*q-g*l*q-h*i*s+e*l*s+g*i*t-e*k*t,c[13]=g*l*m-h*k*m+h*i*o-e*l*o-g*i*p+e*k*p,c[2]=j*p*q-l*n*q+l*m*r-i*p*r-j*m*t+i*n*t,c[6]=h*n*q-f*p*q-h*m*r+e*p*r+f*m*t-e*n*t,c[10]=f*l*q-h*j*q+h*i*r-e*l*r-f*i*t+e*j*t,c[14]=h*j*m-f*l*m-h*i*n+e*l*n+f*i*p-e*j*p,c[3]=k*n*q-j*o*q-k*m*r+i*o*r+j*m*s-i*n*s,c[7]=f*o*q-g*n*q+g*m*r-e*o*r-f*m*s+e*n*s,c[11]=g*j*q-f*k*q-g*i*r+e*k*r+f*i*s-e*j*s,c[15]=f*k*m-g*j*m+g*i*n-e*k*n-f*i*o+e*j*o;var u=e*c[0]+i*c[4]+m*c[8]+q*c[12];if(0===u){var v="Matrix4.getInverse(): can't invert matrix, determinant is 0";if(b)throw new Error(v);return console.warn(v),this.identity(),this}return this.multiplyScalar(1/u),this},a.Matrix4.prototype.applyToVector3Array=function(){var b=new a.Vector3;return function(a,c,d){void 0===c&&(c=0),void 0===d&&(d=a.length);for(var e=0,f=c;d>e;e+=3,f+=3)b.x=a[f],b.y=a[f+1],b.z=a[f+2],b.applyMatrix4(this),a[f]=b.x,a[f+1]=b.y,a[f+2]=b.z;return a}},a.Matrix4.prototype.makeTranslation=function(a,b,c){return this.set(1,0,0,a,0,1,0,b,0,0,1,c,0,0,0,1),this},a.Matrix4.prototype.multiplyScalar=function(a){var b=this.elements;return b[0]*=a,b[4]*=a,b[8]*=a,b[12]*=a,b[1]*=a,b[5]*=a,b[9]*=a,b[13]*=a,b[2]*=a,b[6]*=a,b[10]*=a,b[14]*=a,b[3]*=a,b[7]*=a,b[11]*=a,b[15]*=a,this},a.Matrix4.prototype.set=function(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p){var q=this.elements;return q[0]=a,q[4]=b,q[8]=c,q[12]=d,q[1]=e,q[5]=f,q[9]=g,q[13]=h,q[2]=i,q[6]=j,q[10]=k,q[14]=l,q[3]=m,q[7]=n,q[11]=o,q[15]=p,this},a.Matrix4.prototype.makeScale=function(a,b,c){return this.set(a,0,0,0,0,b,0,0,0,0,c,0,0,0,0,1),this},a}(cornerstoneMath),cornerstoneMath=function(a){"use strict";function b(a){return{x:a.pageX,y:a.pageY}}function c(a,b){return{x:a.x-b.x,y:a.y-b.y}}function d(a){return{x:a.x,y:a.y}}function e(a,b){return Math.sqrt(f(a,b))}function f(a,b){var d=c(a,b);return d.x*d.x+d.y*d.y}function g(a,b){return a.x<b.left||a.x>b.left+b.width||a.y<b.top||a.y>b.top+b.height?!1:!0}return void 0===a&&(a={}),a.point={subtract:c,copy:d,pageToPoint:b,distance:e,distanceSquared:f,insideRect:g},a}(cornerstoneMath),cornerstoneMath=function(a){"use strict";return void 0===a&&(a={}),a.Quaternion=function(a,b,c,d){this.x=a||0,this.y=b||0,this.z=c||0,this.w=void 0!==d?d:1},a.Quaternion.prototype.setFromAxisAngle=function(a,b){var c=b/2,d=Math.sin(c);return this.x=a.x*d,this.y=a.y*d,this.z=a.z*d,this.w=Math.cos(c),this},a.Quaternion.prototype.multiplyQuaternions=function(a,b){var c=a.x,d=a.y,e=a.z,f=a.w,g=b.x,h=b.y,i=b.z,j=b.w;return this.x=c*j+f*g+d*i-e*h,this.y=d*j+f*h+e*g-c*i,this.z=e*j+f*i+c*h-d*g,this.w=f*j-c*g-d*h-e*i,this},a.Quaternion.prototype.setFromRotationMatrix=function(a){var b,c=a.elements,d=c[0],e=c[4],f=c[8],g=c[1],h=c[5],i=c[9],j=c[2],k=c[6],l=c[10],m=d+h+l;return m>0?(b=.5/Math.sqrt(m+1),this.w=.25/b,this.x=(k-i)*b,this.y=(f-j)*b,this.z=(g-e)*b):d>h&&d>l?(b=2*Math.sqrt(1+d-h-l),this.w=(k-i)/b,this.x=.25*b,this.y=(e+g)/b,this.z=(f+j)/b):h>l?(b=2*Math.sqrt(1+h-d-l),this.w=(f-j)/b,this.x=(e+g)/b,this.y=.25*b,this.z=(i+k)/b):(b=2*Math.sqrt(1+l-d-h),this.w=(g-e)/b,this.x=(f+j)/b,this.y=(i+k)/b,this.z=.25*b),this},a}(cornerstoneMath),cornerstoneMath=function(a){"use strict";function b(a){var b={start:{x:a.left,y:a.top},end:{x:a.left+a.width,y:a.top}},c={start:{x:a.left+a.width,y:a.top},end:{x:a.left+a.width,y:a.top+a.height}},d={start:{x:a.left+a.width,y:a.top+a.height},end:{x:a.left,y:a.top+a.height}},e={start:{x:a.left,y:a.top+a.height},end:{x:a.left,y:a.top}},f=[b,c,d,e];return f}function c(c,d){var e=655535,f=b(c);return f.forEach(function(b){var c=a.lineSegment.distanceToPoint(b,d);e>c&&(e=c)}),e}return void 0===a&&(a={}),a.rect={distanceToPoint:c},a}(cornerstoneMath),cornerstoneMath=function(a){"use strict";return void 0===a&&(a={}),a.Vector3=function(a,b,c){this.x=a||0,this.y=b||0,this.z=c||0},a.Vector3.prototype={constructor:a.Vector3,set:function(a,b,c){return this.x=a,this.y=b,this.z=c,this},setX:function(a){return this.x=a,this},setY:function(a){return this.y=a,this},setZ:function(a){return this.z=a,this},setComponent:function(a,b){switch(a){case 0:this.x=b;break;case 1:this.y=b;break;case 2:this.z=b;break;default:throw new Error("index is out of range: "+a)}},getComponent:function(a){switch(a){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error("index is out of range: "+a)}},copy:function(a){return this.x=a.x,this.y=a.y,this.z=a.z,this},add:function(a,b){return void 0!==b?(console.warn("DEPRECATED: Vector3's .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(a,b)):(this.x+=a.x,this.y+=a.y,this.z+=a.z,this)},addScalar:function(a){return this.x+=a,this.y+=a,this.z+=a,this},addVectors:function(a,b){return this.x=a.x+b.x,this.y=a.y+b.y,this.z=a.z+b.z,this},sub:function(a,b){return void 0!==b?(console.warn("DEPRECATED: Vector3's .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(a,b)):(this.x-=a.x,this.y-=a.y,this.z-=a.z,this)},subVectors:function(a,b){return this.x=a.x-b.x,this.y=a.y-b.y,this.z=a.z-b.z,this},multiply:function(a,b){return void 0!==b?(console.warn("DEPRECATED: Vector3's .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(a,b)):(this.x*=a.x,this.y*=a.y,this.z*=a.z,this)},multiplyScalar:function(a){return this.x*=a,this.y*=a,this.z*=a,this},multiplyVectors:function(a,b){return this.x=a.x*b.x,this.y=a.y*b.y,this.z=a.z*b.z,this},applyAxisAngle:function(){var b;return function(c,d){return void 0===b&&(b=new a.Quaternion),this.applyQuaternion(b.setFromAxisAngle(c,d)),this}}(),applyMatrix3:function(a){var b=this.x,c=this.y,d=this.z,e=a.elements;return this.x=e[0]*b+e[3]*c+e[6]*d,this.y=e[1]*b+e[4]*c+e[7]*d,this.z=e[2]*b+e[5]*c+e[8]*d,this},applyMatrix4:function(a){var b=this.x,c=this.y,d=this.z,e=a.elements;return this.x=e[0]*b+e[4]*c+e[8]*d+e[12],this.y=e[1]*b+e[5]*c+e[9]*d+e[13],this.z=e[2]*b+e[6]*c+e[10]*d+e[14],this},applyProjection:function(a){var b=this.x,c=this.y,d=this.z,e=a.elements,f=1/(e[3]*b+e[7]*c+e[11]*d+e[15]);return this.x=(e[0]*b+e[4]*c+e[8]*d+e[12])*f,this.y=(e[1]*b+e[5]*c+e[9]*d+e[13])*f,this.z=(e[2]*b+e[6]*c+e[10]*d+e[14])*f,this},applyQuaternion:function(a){var b=this.x,c=this.y,d=this.z,e=a.x,f=a.y,g=a.z,h=a.w,i=h*b+f*d-g*c,j=h*c+g*b-e*d,k=h*d+e*c-f*b,l=-e*b-f*c-g*d;return this.x=i*h+l*-e+j*-g-k*-f,this.y=j*h+l*-f+k*-e-i*-g,this.z=k*h+l*-g+i*-f-j*-e,this},transformDirection:function(a){var b=this.x,c=this.y,d=this.z,e=a.elements;return this.x=e[0]*b+e[4]*c+e[8]*d,this.y=e[1]*b+e[5]*c+e[9]*d,this.z=e[2]*b+e[6]*c+e[10]*d,this.normalize(),this},divide:function(a){return this.x/=a.x,this.y/=a.y,this.z/=a.z,this},divideScalar:function(a){if(0!==a){var b=1/a;this.x*=b,this.y*=b,this.z*=b}else this.x=0,this.y=0,this.z=0;return this},min:function(a){return this.x>a.x&&(this.x=a.x),this.y>a.y&&(this.y=a.y),this.z>a.z&&(this.z=a.z),this},max:function(a){return this.x<a.x&&(this.x=a.x),this.y<a.y&&(this.y=a.y),this.z<a.z&&(this.z=a.z),this},clamp:function(a,b){return this.x<a.x?this.x=a.x:this.x>b.x&&(this.x=b.x),this.y<a.y?this.y=a.y:this.y>b.y&&(this.y=b.y),this.z<a.z?this.z=a.z:this.z>b.z&&(this.z=b.z),this},clampScalar:function(){var b,c;return function(d,e){return void 0===b&&(b=new a.Vector3,c=new a.Vector3),b.set(d,d,d),c.set(e,e,e),this.clamp(b,c)}}(),floor:function(){return this.x=Math.floor(this.x),this.y=Math.floor(this.y),this.z=Math.floor(this.z),this},ceil:function(){return this.x=Math.ceil(this.x),this.y=Math.ceil(this.y),this.z=Math.ceil(this.z),this},round:function(){return this.x=Math.round(this.x),this.y=Math.round(this.y),this.z=Math.round(this.z),this},roundToZero:function(){return this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x),this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y),this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z),this},negate:function(){return this.multiplyScalar(-1)},dot:function(a){return this.x*a.x+this.y*a.y+this.z*a.z},lengthSq:function(){return this.x*this.x+this.y*this.y+this.z*this.z},length:function(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)},lengthManhattan:function(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)},normalize:function(){return this.divideScalar(this.length())},setLength:function(a){var b=this.length();return 0!==b&&a!==b&&this.multiplyScalar(a/b),this},lerp:function(a,b){return this.x+=(a.x-this.x)*b,this.y+=(a.y-this.y)*b,this.z+=(a.z-this.z)*b,this},cross:function(a,b){if(void 0!==b)return console.warn("DEPRECATED: Vector3's .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(a,b);var c=this.x,d=this.y,e=this.z;return this.x=d*a.z-e*a.y,this.y=e*a.x-c*a.z,this.z=c*a.y-d*a.x,this},crossVectors:function(a,b){var c=a.x,d=a.y,e=a.z,f=b.x,g=b.y,h=b.z;return this.x=d*h-e*g,this.y=e*f-c*h,this.z=c*g-d*f,this},projectOnVector:function(){var b,c;return function(d){return void 0===b&&(b=new a.Vector3),b.copy(d).normalize(),c=this.dot(b),this.copy(b).multiplyScalar(c)}}(),projectOnPlane:function(){var b;return function(c){return void 0===b&&(b=new a.Vector3),b.copy(this).projectOnVector(c),this.sub(b)}}(),reflect:function(){var b;return function(c){return void 0===b&&(b=new a.Vector3),this.sub(b.copy(c).multiplyScalar(2*this.dot(c)))}}(),angleTo:function(b){var c=this.dot(b)/(this.length()*b.length());return Math.acos(a.Math.clamp(c,-1,1))},distanceTo:function(a){return Math.sqrt(this.distanceToSquared(a))},distanceToSquared:function(a){var b=this.x-a.x,c=this.y-a.y,d=this.z-a.z;return b*b+c*c+d*d},setEulerFromRotationMatrix:function(){console.error("REMOVED: Vector3's setEulerFromRotationMatrix has been removed in favor of Euler.setFromRotationMatrix(), please update your code.")},setEulerFromQuaternion:function(){console.error("REMOVED: Vector3's setEulerFromQuaternion: has been removed in favor of Euler.setFromQuaternion(), please update your code.")},getPositionFromMatrix:function(a){return console.warn("DEPRECATED: Vector3's .getPositionFromMatrix() has been renamed to .setFromMatrixPosition(). Please update your code."),this.setFromMatrixPosition(a)},getScaleFromMatrix:function(a){return console.warn("DEPRECATED: Vector3's .getScaleFromMatrix() has been renamed to .setFromMatrixScale(). Please update your code."),this.setFromMatrixScale(a)},getColumnFromMatrix:function(a,b){return console.warn("DEPRECATED: Vector3's .getColumnFromMatrix() has been renamed to .setFromMatrixColumn(). Please update your code."),this.setFromMatrixColumn(a,b)},setFromMatrixPosition:function(a){return this.x=a.elements[12],this.y=a.elements[13],this.z=a.elements[14],this},setFromMatrixScale:function(a){var b=this.set(a.elements[0],a.elements[1],a.elements[2]).length(),c=this.set(a.elements[4],a.elements[5],a.elements[6]).length(),d=this.set(a.elements[8],a.elements[9],a.elements[10]).length();return this.x=b,this.y=c,this.z=d,this},setFromMatrixColumn:function(a,b){var c=4*a,d=b.elements;return this.x=d[c],this.y=d[c+1],this.z=d[c+2],this},equals:function(a){return a.x===this.x&&a.y===this.y&&a.z===this.z},fromArray:function(a){return this.x=a[0],this.y=a[1],this.z=a[2],this},toArray:function(){return[this.x,this.y,this.z]},clone:function(){return new a.Vector3(this.x,this.y,this.z)}},a}(cornerstoneMath);