root / trunk / web / dojo / dojox / gfx3d / matrix.js @ 13
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/*
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Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.gfx3d.matrix"]){ |
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dojo._hasResource["dojox.gfx3d.matrix"]=true; |
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dojo.provide("dojox.gfx3d.matrix");
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dojox.gfx3d.matrix._degToRad=function(_1){ |
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return Math.PI*_1/180; |
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}; |
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dojox.gfx3d.matrix._radToDeg=function(_2){ |
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return _2/Math.PI*180; |
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}; |
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dojox.gfx3d.matrix.Matrix3D=function(_3){ |
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if(_3){
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if(typeof _3=="number"){ |
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this.xx=this.yy=this.zz=_3; |
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}else{
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if(_3 instanceof Array){ |
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if(_3.length>0){ |
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var m=dojox.gfx3d.matrix.normalize(_3[0]); |
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for(var i=1;i<_3.length;++i){ |
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var l=m;
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var r=dojox.gfx3d.matrix.normalize(_3[i]);
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m=new dojox.gfx3d.matrix.Matrix3D();
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m.xx=l.xx*r.xx+l.xy*r.yx+l.xz*r.zx; |
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m.xy=l.xx*r.xy+l.xy*r.yy+l.xz*r.zy; |
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m.xz=l.xx*r.xz+l.xy*r.yz+l.xz*r.zz; |
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m.yx=l.yx*r.xx+l.yy*r.yx+l.yz*r.zx; |
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m.yy=l.yx*r.xy+l.yy*r.yy+l.yz*r.zy; |
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m.yz=l.yx*r.xz+l.yy*r.yz+l.yz*r.zz; |
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m.zx=l.zx*r.xx+l.zy*r.yx+l.zz*r.zx; |
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m.zy=l.zx*r.xy+l.zy*r.yy+l.zz*r.zy; |
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m.zz=l.zx*r.xz+l.zy*r.yz+l.zz*r.zz; |
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m.dx=l.xx*r.dx+l.xy*r.dy+l.xz*r.dz+l.dx; |
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m.dy=l.yx*r.dx+l.yy*r.dy+l.yz*r.dz+l.dy; |
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m.dz=l.zx*r.dx+l.zy*r.dy+l.zz*r.dz+l.dz; |
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} |
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dojo.mixin(this,m);
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} |
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}else{
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dojo.mixin(this,_3);
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} |
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} |
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} |
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}; |
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dojo.extend(dojox.gfx3d.matrix.Matrix3D,{xx:1,xy:0,xz:0,yx:0,yy:1,yz:0,zx:0,zy:0,zz:1,dx:0,dy:0,dz:0});
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dojo.mixin(dojox.gfx3d.matrix,{identity:new dojox.gfx3d.matrix.Matrix3D(),translate:function(a,b,c){
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if(arguments.length>1){ |
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return new dojox.gfx3d.matrix.Matrix3D({dx:a,dy:b,dz:c}); |
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} |
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return new dojox.gfx3d.matrix.Matrix3D({dx:a.x,dy:a.y,dz:a.z}); |
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},scale:function(a,b,c){ |
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if(arguments.length>1){ |
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return new dojox.gfx3d.matrix.Matrix3D({xx:a,yy:b,zz:c}); |
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} |
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if(typeof a=="number"){ |
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return new dojox.gfx3d.matrix.Matrix3D({xx:a,yy:a,zz:a}); |
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} |
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return new dojox.gfx3d.matrix.Matrix3D({xx:a.x,yy:a.y,zz:a.z}); |
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},rotateX:function(_4){ |
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var c=Math.cos(_4);
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var s=Math.sin(_4);
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return new dojox.gfx3d.matrix.Matrix3D({yy:c,yz:-s,zy:s,zz:c}); |
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},rotateXg:function(_5){ |
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return dojox.gfx3d.matrix.rotateX(dojox.gfx3d.matrix._degToRad(_5));
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},rotateY:function(_6){ |
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var c=Math.cos(_6);
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var s=Math.sin(_6);
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return new dojox.gfx3d.matrix.Matrix3D({xx:c,xz:s,zx:-s,zz:c}); |
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},rotateYg:function(_7){ |
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return dojox.gfx3d.matrix.rotateY(dojox.gfx3d.matrix._degToRad(_7));
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},rotateZ:function(_8){ |
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var c=Math.cos(_8);
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var s=Math.sin(_8);
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return new dojox.gfx3d.matrix.Matrix3D({xx:c,xy:-s,yx:s,yy:c}); |
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},rotateZg:function(_9){ |
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return dojox.gfx3d.matrix.rotateZ(dojox.gfx3d.matrix._degToRad(_9));
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},cameraTranslate:function(a,b,c){ |
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if(arguments.length>1){ |
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return new dojox.gfx3d.matrix.Matrix3D({dx:-a,dy:-b,dz:-c}); |
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} |
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return new dojox.gfx3d.matrix.Matrix3D({dx:-a.x,dy:-a.y,dz:-a.z}); |
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},cameraRotateX:function(_a){ |
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var c=Math.cos(-_a);
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var s=Math.sin(-_a);
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return new dojox.gfx3d.matrix.Matrix3D({yy:c,yz:-s,zy:s,zz:c}); |
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},cameraRotateXg:function(_b){ |
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return dojox.gfx3d.matrix.rotateX(dojox.gfx3d.matrix._degToRad(_b));
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},cameraRotateY:function(_c){ |
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var c=Math.cos(-_c);
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var s=Math.sin(-_c);
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return new dojox.gfx3d.matrix.Matrix3D({xx:c,xz:s,zx:-s,zz:c}); |
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},cameraRotateYg:function(_d){ |
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return dojox.gfx3d.matrix.rotateY(dojox.gfx3d.matrix._degToRad(_d));
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},cameraRotateZ:function(_e){ |
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var c=Math.cos(-_e);
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var s=Math.sin(-_e);
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return new dojox.gfx3d.matrix.Matrix3D({xx:c,xy:-s,yx:s,yy:c}); |
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},cameraRotateZg:function(_f){ |
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return dojox.gfx3d.matrix.rotateZ(dojox.gfx3d.matrix._degToRad(_f));
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},normalize:function(_10){ |
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return (_10 instanceof dojox.gfx3d.matrix.Matrix3D)?_10:new dojox.gfx3d.matrix.Matrix3D(_10); |
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},clone:function(_11){ |
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var obj=new dojox.gfx3d.matrix.Matrix3D(); |
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for(var i in _11){ |
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if(typeof (_11[i])=="number"&&typeof (obj[i])=="number"&&obj[i]!=_11[i]){ |
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obj[i]=_11[i]; |
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} |
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} |
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return obj;
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},invert:function(_12){ |
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var m=dojox.gfx3d.matrix.normalize(_12);
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var D=m.xx*m.yy*m.zz+m.xy*m.yz*m.zx+m.xz*m.yx*m.zy-m.xx*m.yz*m.zy-m.xy*m.yx*m.zz-m.xz*m.yy*m.zx;
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var M=new dojox.gfx3d.matrix.Matrix3D({xx:(m.yy*m.zz-m.yz*m.zy)/D,xy:(m.xz*m.zy-m.xy*m.zz)/D,xz:(m.xy*m.yz-m.xz*m.yy)/D,yx:(m.yz*m.zx-m.yx*m.zz)/D,yy:(m.xx*m.zz-m.xz*m.zx)/D,yz:(m.xz*m.yx-m.xx*m.yz)/D,zx:(m.yx*m.zy-m.yy*m.zx)/D,zy:(m.xy*m.zx-m.xx*m.zy)/D,zz:(m.xx*m.yy-m.xy*m.yx)/D,dx:-1*(m.xy*m.yz*m.dz+m.xz*m.dy*m.zy+m.dx*m.yy*m.zz-m.xy*m.dy*m.zz-m.xz*m.yy*m.dz-m.dx*m.yz*m.zy)/D,dy:(m.xx*m.yz*m.dz+m.xz*m.dy*m.zx+m.dx*m.yx*m.zz-m.xx*m.dy*m.zz-m.xz*m.yx*m.dz-m.dx*m.yz*m.zx)/D,dz:-1*(m.xx*m.yy*m.dz+m.xy*m.dy*m.zx+m.dx*m.yx*m.zy-m.xx*m.dy*m.zy-m.xy*m.yx*m.dz-m.dx*m.yy*m.zx)/D}); |
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return M;
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},_multiplyPoint:function(m,x,y,z){ |
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return {x:m.xx*x+m.xy*y+m.xz*z+m.dx,y:m.yx*x+m.yy*y+m.yz*z+m.dy,z:m.zx*x+m.zy*y+m.zz*z+m.dz}; |
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},multiplyPoint:function(_13,a,b,c){ |
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var m=dojox.gfx3d.matrix.normalize(_13);
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if(typeof a=="number"&&typeof b=="number"&&typeof c=="number"){ |
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return dojox.gfx3d.matrix._multiplyPoint(m,a,b,c);
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} |
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return dojox.gfx3d.matrix._multiplyPoint(m,a.x,a.y,a.z);
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},multiply:function(_14){ |
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var m=dojox.gfx3d.matrix.normalize(_14);
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for(var i=1;i<arguments.length;++i){ |
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var l=m;
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var r=dojox.gfx3d.matrix.normalize(arguments[i]); |
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m=new dojox.gfx3d.matrix.Matrix3D();
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m.xx=l.xx*r.xx+l.xy*r.yx+l.xz*r.zx; |
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m.xy=l.xx*r.xy+l.xy*r.yy+l.xz*r.zy; |
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m.xz=l.xx*r.xz+l.xy*r.yz+l.xz*r.zz; |
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m.yx=l.yx*r.xx+l.yy*r.yx+l.yz*r.zx; |
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m.yy=l.yx*r.xy+l.yy*r.yy+l.yz*r.zy; |
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m.yz=l.yx*r.xz+l.yy*r.yz+l.yz*r.zz; |
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m.zx=l.zx*r.xx+l.zy*r.yx+l.zz*r.zx; |
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m.zy=l.zx*r.xy+l.zy*r.yy+l.zz*r.zy; |
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m.zz=l.zx*r.xz+l.zy*r.yz+l.zz*r.zz; |
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m.dx=l.xx*r.dx+l.xy*r.dy+l.xz*r.dz+l.dx; |
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m.dy=l.yx*r.dx+l.yy*r.dy+l.yz*r.dz+l.dy; |
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m.dz=l.zx*r.dx+l.zy*r.dy+l.zz*r.dz+l.dz; |
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} |
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return m;
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},_project:function(m,x,y,z){ |
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return {x:m.xx*x+m.xy*y+m.xz*z+m.dx,y:m.yx*x+m.yy*y+m.yz*z+m.dy,z:m.zx*x+m.zy*y+m.zz*z+m.dz}; |
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},project:function(_15,a,b,c){ |
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var m=dojox.gfx3d.matrix.normalize(_15);
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if(typeof a=="number"&&typeof b=="number"&&typeof c=="number"){ |
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return dojox.gfx3d.matrix._project(m,a,b,c);
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} |
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return dojox.gfx3d.matrix._project(m,a.x,a.y,a.z);
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}}); |
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dojox.gfx3d.Matrix3D=dojox.gfx3d.matrix.Matrix3D; |
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} |