| /* |
| Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved. |
| Available via Academic Free License >= 2.1 OR the modified BSD license. |
| see: http://dojotoolkit.org/license for details |
| */ |
| |
| |
| if(!dojo._hasResource["dojox.drawing.util.common"]){ |
| dojo._hasResource["dojox.drawing.util.common"]=true; |
| dojo.provide("dojox.drawing.util.common"); |
| dojo.require("dojox.math.round"); |
| (function(){ |
| var _1={}; |
| dojox.drawing.util.common={radToDeg:function(n){ |
| return (n*180)/Math.PI; |
| },degToRad:function(n){ |
| return (n*Math.PI)/180; |
| },angle:function(_2,_3){ |
| if(_3){ |
| _3=_3/180; |
| var _4=this.radians(_2),_5=this.length(_2),_6=Math.PI*_3,_7=dojox.math.round(_4/_6),_8=_7*_6; |
| return dojox.math.round(this.radToDeg(_8)); |
| }else{ |
| return this.radToDeg(this.radians(_2)); |
| } |
| },radians:function(o){ |
| return Math.atan2(o.start.y-o.y,o.start.x-o.x); |
| },length:function(o){ |
| return Math.sqrt(Math.pow(o.start.x-o.x,2)+Math.pow(o.start.y-o.y,2)); |
| },lineSub:function(x1,y1,x2,y2,_9){ |
| var _a=this.distance(this.argsToObj.apply(this,arguments)); |
| _a=_a<_9?_9:_a; |
| var pc=(_a-_9)/_a; |
| var x=x1-(x1-x2)*pc; |
| var y=y1-(y1-y2)*pc; |
| return {x:x,y:y}; |
| },argsToObj:function(){ |
| var a=arguments; |
| if(a.length<4){ |
| return a[0]; |
| } |
| return {start:{x:a[0],y:a[1]},x:a[2],y:a[3]}; |
| },distance:function(){ |
| var o=this.argsToObj.apply(this,arguments); |
| return Math.abs(Math.sqrt(Math.pow(o.start.x-o.x,2)+Math.pow(o.start.y-o.y,2))); |
| },slope:function(p1,p2){ |
| if(!(p1.x-p2.x)){ |
| return 0; |
| } |
| return ((p1.y-p2.y)/(p1.x-p2.x)); |
| },pointOnCircle:function(cx,cy,_b,_c){ |
| radians=_c*Math.PI/180; |
| var x=_b*Math.cos(radians)*-1; |
| var y=_b*Math.sin(radians)*-1; |
| return {x:cx+x,y:cy+y}; |
| },constrainAngle:function(_d,_e,_f){ |
| var _10=this.angle(_d); |
| if(_10>=_e&&_10<=_f){ |
| return _d; |
| } |
| var _11=this.length(_d); |
| var _12=_e-((360-(_f-_e))/2); |
| var _13=_10>_f?_f:_e-_10<100?_e:_f; |
| return this.pointOnCircle(_d.start.x,_d.start.y,_11,_13); |
| },snapAngle:function(obj,ca){ |
| var _14=this.radians(obj),_15=this.angle(obj),_16=this.length(obj),seg=Math.PI*ca,rnd=Math.round(_14/seg),_17=rnd*seg,_18=this.radToDeg(_17),pt=this.pointOnCircle(obj.start.x,obj.start.y,_16,_18); |
| return pt; |
| },uid:function(str){ |
| str=str||"shape"; |
| _1[str]=_1[str]===undefined?0:_1[str]+1; |
| return str+_1[str]; |
| },abbr:function(_19){ |
| return _19.substring(_19.lastIndexOf(".")+1).charAt(0).toLowerCase()+_19.substring(_19.lastIndexOf(".")+2); |
| },mixin:function(o1,o2){ |
| },objects:{},register:function(obj){ |
| this.objects[obj.id]=obj; |
| },byId:function(id){ |
| return this.objects[id]; |
| },attr:function(_1a,_1b,_1c,_1d){ |
| if(!_1a){ |
| return false; |
| } |
| try{ |
| if(_1a.shape&&_1a.util){ |
| _1a=_1a.shape; |
| } |
| if(!_1c&&_1b=="id"&&_1a.target){ |
| var n=_1a.target; |
| while(!dojo.attr(n,"id")){ |
| n=n.parentNode; |
| } |
| return dojo.attr(n,"id"); |
| } |
| if(_1a.rawNode||_1a.target){ |
| var _1e=Array.prototype.slice.call(arguments); |
| _1e[0]=_1a.rawNode||_1a.target; |
| return dojo.attr.apply(dojo,_1e); |
| } |
| return dojo.attr(_1a,"id"); |
| } |
| catch(e){ |
| if(!_1d){ |
| } |
| return false; |
| } |
| }}; |
| })(); |
| } |
