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root / trunk / web / dojo / dojox / sketch / SingleArrowAnnotation.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.sketch.SingleArrowAnnotation"]){
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dojo._hasResource["dojox.sketch.SingleArrowAnnotation"]=true;
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dojo.provide("dojox.sketch.SingleArrowAnnotation");
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dojo.require("dojox.sketch.Annotation");
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dojo.require("dojox.sketch.Anchor");
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(function(){
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var ta=dojox.sketch;
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ta.SingleArrowAnnotation=function(_1,id){
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ta.Annotation.call(this,_1,id);
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this.transform={dx:0,dy:0};
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this.start={x:0,y:0};
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this.control={x:100,y:-50};
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this.end={x:200,y:0};
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this.textPosition={x:0,y:0};
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this.textOffset=4;
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this.textYOffset=10;
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this.rotation=0;
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this.pathShape=null;
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this.arrowhead=null;
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this.arrowheadGroup=null;
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this.labelShape=null;
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this.anchors.start=new ta.Anchor(this,"start");
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this.anchors.control=new ta.Anchor(this,"control");
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this.anchors.end=new ta.Anchor(this,"end");
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};
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ta.SingleArrowAnnotation.prototype=new ta.Annotation;
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var p=ta.SingleArrowAnnotation.prototype;
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p.constructor=ta.SingleArrowAnnotation;
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p.type=function(){
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return "SingleArrow";
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};
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p.getType=function(){
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return ta.SingleArrowAnnotation;
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};
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p._rot=function(){
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var _2=this.control.y-this.start.y;
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var _3=this.control.x-this.start.x;
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this.rotation=Math.atan2(_2,_3);
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};
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p._pos=function(){
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var _4=this.textOffset,x=0,y=0;
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var _5=this.calculate.slope(this.control,this.end);
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this.textAlign="middle";
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if(Math.abs(_5)>=1){
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x=this.end.x+this.calculate.dx(this.control,this.end,_4);
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if(this.control.y>this.end.y){
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y=this.end.y-_4;
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}else{
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y=this.end.y+_4+this.textYOffset;
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}
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}else{
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if(_5==0){
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x=this.end.x+_4;
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y=this.end.y+this.textYOffset;
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}else{
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if(this.start.x>this.end.x){
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x=this.end.x-_4;
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this.textAlign="end";
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}else{
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x=this.end.x+_4;
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this.textAlign="start";
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}
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if(this.start.y<this.end.y){
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y=this.end.y+this.calculate.dy(this.control,this.end,_4)+this.textYOffset;
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}else{
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y=this.end.y+this.calculate.dy(this.control,this.end,-_4);
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}
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}
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}
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this.textPosition={x:x,y:y};
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};
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p.apply=function(_6){
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if(!_6){
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return;
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}
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if(_6.documentElement){
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_6=_6.documentElement;
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}
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this.readCommonAttrs(_6);
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for(var i=0;i<_6.childNodes.length;i++){
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var c=_6.childNodes[i];
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if(c.localName=="text"){
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this.property("label",c.childNodes.length?c.childNodes[0].nodeValue:"");
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}else{
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if(c.localName=="path"){
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var d=c.getAttribute("d").split(" ");
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var s=d[0].split(",");
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this.start.x=parseFloat(s[0].substr(1),10);
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this.start.y=parseFloat(s[1],10);
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s=d[1].split(",");
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this.control.x=parseFloat(s[0].substr(1),10);
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this.control.y=parseFloat(s[1],10);
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s=d[2].split(",");
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this.end.x=parseFloat(s[0],10);
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this.end.y=parseFloat(s[1],10);
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var _7=this.property("stroke");
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var _8=c.getAttribute("style");
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var m=_8.match(/stroke:([^;]+);/);
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if(m){
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_7.color=m[1];
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this.property("fill",m[1]);
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}
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m=_8.match(/stroke-width:([^;]+);/);
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if(m){
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_7.width=m[1];
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}
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this.property("stroke",_7);
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}
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}
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}
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};
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p.initialize=function(_9){
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var _a=(ta.Annotation.labelFont)?ta.Annotation.labelFont:{family:"Times",size:"16px"};
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this.apply(_9);
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this._rot();
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this._pos();
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var _b=this.rotation;
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var _c=dojox.gfx.matrix.rotate(_b);
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this.shape=this.figure.group.createGroup();
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this.shape.getEventSource().setAttribute("id",this.id);
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this.pathShape=this.shape.createPath("M"+this.start.x+","+this.start.y+" Q"+this.control.x+","+this.control.y+" "+this.end.x+","+this.end.y+" l0,0");
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this.arrowheadGroup=this.shape.createGroup();
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this.arrowhead=this.arrowheadGroup.createPath();
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this.labelShape=this.shape.createText({x:this.textPosition.x,y:this.textPosition.y,text:this.property("label"),align:this.textAlign});
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this.labelShape.getEventSource().setAttribute("id",this.id+"-labelShape");
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this.draw();
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};
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p.destroy=function(){
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if(!this.shape){
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return;
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}
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this.arrowheadGroup.remove(this.arrowhead);
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this.shape.remove(this.arrowheadGroup);
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this.shape.remove(this.pathShape);
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this.shape.remove(this.labelShape);
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this.figure.group.remove(this.shape);
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this.shape=this.pathShape=this.labelShape=this.arrowheadGroup=this.arrowhead=null;
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};
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p.draw=function(_d){
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this.apply(_d);
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this._rot();
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this._pos();
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var _e=this.rotation;
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var _f=dojox.gfx.matrix.rotate(_e);
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this.shape.setTransform(this.transform);
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this.pathShape.setShape("M"+this.start.x+","+this.start.y+" Q"+this.control.x+","+this.control.y+" "+this.end.x+","+this.end.y+" l0,0");
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this.arrowheadGroup.setTransform({dx:this.start.x,dy:this.start.y}).applyTransform(_f);
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this.arrowhead.setFill(this.property("fill"));
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this.labelShape.setShape({x:this.textPosition.x,y:this.textPosition.y,text:this.property("label"),align:this.textAlign}).setFill(this.property("fill"));
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this.zoom();
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};
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p.zoom=function(pct){
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if(this.arrowhead){
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pct=pct||this.figure.zoomFactor;
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ta.Annotation.prototype.zoom.call(this,pct);
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if(this._curPct!==pct){
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this._curPct=pct;
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var l=pct>1?20:Math.floor(20/pct),w=pct>1?5:Math.floor(5/pct),h=pct>1?3:Math.floor(3/pct);
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this.arrowhead.setShape("M0,0 l"+l+",-"+w+" -"+h+","+w+" "+h+","+w+" Z");
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}
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}
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};
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p.getBBox=function(){
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var x=Math.min(this.start.x,this.control.x,this.end.x);
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var y=Math.min(this.start.y,this.control.y,this.end.y);
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var w=Math.max(this.start.x,this.control.x,this.end.x)-x;
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var h=Math.max(this.start.y,this.control.y,this.end.y)-y;
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return {x:x,y:y,width:w,height:h};
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};
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p.serialize=function(){
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var s=this.property("stroke");
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var r=this.rotation*(180/Math.PI);
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r=Math.round(r*Math.pow(10,4))/Math.pow(10,4);
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return "<g "+this.writeCommonAttrs()+">"+"<path style=\"stroke:"+s.color+";stroke-width:"+s.width+";fill:none;\" d=\""+"M"+this.start.x+","+this.start.y+" "+"Q"+this.control.x+","+this.control.y+" "+this.end.x+","+this.end.y+"\" />"+"<g transform=\"translate("+this.start.x+","+this.start.y+") "+"rotate("+r+")\">"+"<path style=\"fill:"+s.color+";\" d=\"M0,0 l20,-5, -3,5, 3,5 Z\" />"+"</g>"+"<text style=\"fill:"+s.color+";text-anchor:"+this.textAlign+"\" font-weight=\"bold\" "+"x=\""+this.textPosition.x+"\" "+"y=\""+this.textPosition.y+"\">"+this.property("label")+"</text>"+"</g>";
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};
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ta.Annotation.register("SingleArrow");
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})();
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}