root / trunk / web / dojo / dojox / gfx3d / matrix.js @ 12
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.gfx3d.matrix"]){ |
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| 9 | dojo._hasResource["dojox.gfx3d.matrix"]=true; |
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| 10 | dojo.provide("dojox.gfx3d.matrix");
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| 11 | dojox.gfx3d.matrix._degToRad=function(_1){ |
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| 12 | return Math.PI*_1/180; |
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| 13 | }; |
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| 14 | dojox.gfx3d.matrix._radToDeg=function(_2){ |
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| 15 | return _2/Math.PI*180; |
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| 16 | }; |
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| 17 | dojox.gfx3d.matrix.Matrix3D=function(_3){ |
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| 18 | if(_3){
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| 19 | if(typeof _3=="number"){ |
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| 20 | this.xx=this.yy=this.zz=_3; |
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| 21 | }else{
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| 22 | if(_3 instanceof Array){ |
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| 23 | if(_3.length>0){ |
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| 24 | var m=dojox.gfx3d.matrix.normalize(_3[0]); |
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| 25 | for(var i=1;i<_3.length;++i){ |
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| 26 | var l=m;
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| 27 | var r=dojox.gfx3d.matrix.normalize(_3[i]);
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| 28 | m=new dojox.gfx3d.matrix.Matrix3D();
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| 29 | m.xx=l.xx*r.xx+l.xy*r.yx+l.xz*r.zx; |
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| 30 | m.xy=l.xx*r.xy+l.xy*r.yy+l.xz*r.zy; |
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| 31 | m.xz=l.xx*r.xz+l.xy*r.yz+l.xz*r.zz; |
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| 32 | m.yx=l.yx*r.xx+l.yy*r.yx+l.yz*r.zx; |
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| 33 | m.yy=l.yx*r.xy+l.yy*r.yy+l.yz*r.zy; |
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| 34 | m.yz=l.yx*r.xz+l.yy*r.yz+l.yz*r.zz; |
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| 35 | m.zx=l.zx*r.xx+l.zy*r.yx+l.zz*r.zx; |
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| 36 | m.zy=l.zx*r.xy+l.zy*r.yy+l.zz*r.zy; |
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| 37 | m.zz=l.zx*r.xz+l.zy*r.yz+l.zz*r.zz; |
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| 38 | m.dx=l.xx*r.dx+l.xy*r.dy+l.xz*r.dz+l.dx; |
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| 39 | m.dy=l.yx*r.dx+l.yy*r.dy+l.yz*r.dz+l.dy; |
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| 40 | m.dz=l.zx*r.dx+l.zy*r.dy+l.zz*r.dz+l.dz; |
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| 41 | } |
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| 42 | dojo.mixin(this,m);
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| 43 | } |
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| 44 | }else{
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| 45 | dojo.mixin(this,_3);
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| 46 | } |
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| 47 | } |
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| 48 | } |
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| 49 | }; |
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| 50 | 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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| 51 | dojo.mixin(dojox.gfx3d.matrix,{identity:new dojox.gfx3d.matrix.Matrix3D(),translate:function(a,b,c){
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| 52 | if(arguments.length>1){ |
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| 53 | return new dojox.gfx3d.matrix.Matrix3D({dx:a,dy:b,dz:c}); |
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| 54 | } |
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| 55 | return new dojox.gfx3d.matrix.Matrix3D({dx:a.x,dy:a.y,dz:a.z}); |
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| 56 | },scale:function(a,b,c){ |
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| 57 | if(arguments.length>1){ |
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| 58 | return new dojox.gfx3d.matrix.Matrix3D({xx:a,yy:b,zz:c}); |
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| 59 | } |
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| 60 | if(typeof a=="number"){ |
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| 61 | return new dojox.gfx3d.matrix.Matrix3D({xx:a,yy:a,zz:a}); |
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| 62 | } |
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| 63 | return new dojox.gfx3d.matrix.Matrix3D({xx:a.x,yy:a.y,zz:a.z}); |
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| 64 | },rotateX:function(_4){ |
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| 65 | var c=Math.cos(_4);
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| 66 | var s=Math.sin(_4);
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| 67 | return new dojox.gfx3d.matrix.Matrix3D({yy:c,yz:-s,zy:s,zz:c}); |
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| 68 | },rotateXg:function(_5){ |
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| 69 | return dojox.gfx3d.matrix.rotateX(dojox.gfx3d.matrix._degToRad(_5));
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| 70 | },rotateY:function(_6){ |
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| 71 | var c=Math.cos(_6);
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| 72 | var s=Math.sin(_6);
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| 73 | return new dojox.gfx3d.matrix.Matrix3D({xx:c,xz:s,zx:-s,zz:c}); |
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| 74 | },rotateYg:function(_7){ |
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| 75 | return dojox.gfx3d.matrix.rotateY(dojox.gfx3d.matrix._degToRad(_7));
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| 76 | },rotateZ:function(_8){ |
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| 77 | var c=Math.cos(_8);
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| 78 | var s=Math.sin(_8);
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| 79 | return new dojox.gfx3d.matrix.Matrix3D({xx:c,xy:-s,yx:s,yy:c}); |
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| 80 | },rotateZg:function(_9){ |
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| 81 | return dojox.gfx3d.matrix.rotateZ(dojox.gfx3d.matrix._degToRad(_9));
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| 82 | },cameraTranslate:function(a,b,c){ |
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| 83 | if(arguments.length>1){ |
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| 84 | return new dojox.gfx3d.matrix.Matrix3D({dx:-a,dy:-b,dz:-c}); |
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| 85 | } |
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| 86 | return new dojox.gfx3d.matrix.Matrix3D({dx:-a.x,dy:-a.y,dz:-a.z}); |
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| 87 | },cameraRotateX:function(_a){ |
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| 88 | var c=Math.cos(-_a);
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| 89 | var s=Math.sin(-_a);
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| 90 | return new dojox.gfx3d.matrix.Matrix3D({yy:c,yz:-s,zy:s,zz:c}); |
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| 91 | },cameraRotateXg:function(_b){ |
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| 92 | return dojox.gfx3d.matrix.rotateX(dojox.gfx3d.matrix._degToRad(_b));
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| 93 | },cameraRotateY:function(_c){ |
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| 94 | var c=Math.cos(-_c);
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| 95 | var s=Math.sin(-_c);
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| 96 | return new dojox.gfx3d.matrix.Matrix3D({xx:c,xz:s,zx:-s,zz:c}); |
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| 97 | },cameraRotateYg:function(_d){ |
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| 98 | return dojox.gfx3d.matrix.rotateY(dojox.gfx3d.matrix._degToRad(_d));
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| 99 | },cameraRotateZ:function(_e){ |
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| 100 | var c=Math.cos(-_e);
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| 101 | var s=Math.sin(-_e);
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| 102 | return new dojox.gfx3d.matrix.Matrix3D({xx:c,xy:-s,yx:s,yy:c}); |
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| 103 | },cameraRotateZg:function(_f){ |
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| 104 | return dojox.gfx3d.matrix.rotateZ(dojox.gfx3d.matrix._degToRad(_f));
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| 105 | },normalize:function(_10){ |
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| 106 | return (_10 instanceof dojox.gfx3d.matrix.Matrix3D)?_10:new dojox.gfx3d.matrix.Matrix3D(_10); |
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| 107 | },clone:function(_11){ |
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| 108 | var obj=new dojox.gfx3d.matrix.Matrix3D(); |
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| 109 | for(var i in _11){ |
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| 110 | if(typeof (_11[i])=="number"&&typeof (obj[i])=="number"&&obj[i]!=_11[i]){ |
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| 111 | obj[i]=_11[i]; |
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| 112 | } |
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| 113 | } |
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| 114 | return obj;
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| 115 | },invert:function(_12){ |
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| 116 | var m=dojox.gfx3d.matrix.normalize(_12);
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| 117 | 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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| 118 | 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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| 119 | return M;
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| 120 | },_multiplyPoint:function(m,x,y,z){ |
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| 121 | 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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| 122 | },multiplyPoint:function(_13,a,b,c){ |
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| 123 | var m=dojox.gfx3d.matrix.normalize(_13);
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| 124 | if(typeof a=="number"&&typeof b=="number"&&typeof c=="number"){ |
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| 125 | return dojox.gfx3d.matrix._multiplyPoint(m,a,b,c);
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| 126 | } |
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| 127 | return dojox.gfx3d.matrix._multiplyPoint(m,a.x,a.y,a.z);
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| 128 | },multiply:function(_14){ |
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| 129 | var m=dojox.gfx3d.matrix.normalize(_14);
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| 130 | for(var i=1;i<arguments.length;++i){ |
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| 131 | var l=m;
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| 132 | var r=dojox.gfx3d.matrix.normalize(arguments[i]); |
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| 133 | m=new dojox.gfx3d.matrix.Matrix3D();
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| 134 | m.xx=l.xx*r.xx+l.xy*r.yx+l.xz*r.zx; |
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| 135 | m.xy=l.xx*r.xy+l.xy*r.yy+l.xz*r.zy; |
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| 136 | m.xz=l.xx*r.xz+l.xy*r.yz+l.xz*r.zz; |
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| 137 | m.yx=l.yx*r.xx+l.yy*r.yx+l.yz*r.zx; |
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| 138 | m.yy=l.yx*r.xy+l.yy*r.yy+l.yz*r.zy; |
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| 139 | m.yz=l.yx*r.xz+l.yy*r.yz+l.yz*r.zz; |
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| 140 | m.zx=l.zx*r.xx+l.zy*r.yx+l.zz*r.zx; |
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| 141 | m.zy=l.zx*r.xy+l.zy*r.yy+l.zz*r.zy; |
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| 142 | m.zz=l.zx*r.xz+l.zy*r.yz+l.zz*r.zz; |
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| 143 | m.dx=l.xx*r.dx+l.xy*r.dy+l.xz*r.dz+l.dx; |
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| 144 | m.dy=l.yx*r.dx+l.yy*r.dy+l.yz*r.dz+l.dy; |
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| 145 | m.dz=l.zx*r.dx+l.zy*r.dy+l.zz*r.dz+l.dz; |
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| 146 | } |
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| 147 | return m;
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| 148 | },_project:function(m,x,y,z){ |
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| 149 | 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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| 150 | },project:function(_15,a,b,c){ |
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| 151 | var m=dojox.gfx3d.matrix.normalize(_15);
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| 152 | if(typeof a=="number"&&typeof b=="number"&&typeof c=="number"){ |
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| 153 | return dojox.gfx3d.matrix._project(m,a,b,c);
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| 154 | } |
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| 155 | return dojox.gfx3d.matrix._project(m,a.x,a.y,a.z);
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| 156 | }}); |
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| 157 | dojox.gfx3d.Matrix3D=dojox.gfx3d.matrix.Matrix3D; |
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| 158 | } |