flex 虛線 沿著虛線移動的箭頭 完

1.虛線方向的箭頭

package view.line
public function draw():void
var centerx:number = p2.x - radius * math.cos(angle*(math.pi/180));
var centery:number = p2.y + radius * math.sin(angle*(math.pi/180));
var leftx:number = centerx + radius * math.cos((angle+120)*(math.pi/180));
var lefty:number = centery - radius * math.sin((angle+120)*(math.pi/180));
var rightx:number = centerx + radius * math.cos((angle+240)*(math.pi/180));
var righty:number = centery - radius * math.sin((angle+240)*(math.pi/180));
var p1:point = new point( leftx , lefty);
var p3:point= new point(rightx , righty);	
var p4:point= new point(centerx , centery);	
drawarrow(p1,p2,p3,p4);
}protected function drawarrow(p1:point,p2:point,p3:point,p4:point):void
//線填充色(箭頭)
private var _fillcolor:uint = 0x66ff66;//0x0000ff
public function set fillcolor(color:uint):void
[bindable]
public function get fillcolor():uint
//起點座標
public function set startpoint(p:point):void
public function get startpoint():point
//終點點座標
public function set endpoint(p:point):void
public function get endpoint():point
// 箭頭所放的位置，"center" ,"startpoint","endpoint"
public function get arrowalign():string
public function set arrowalign(str:string):void}}

2. 虛線，及沿著虛線移動的箭頭

package view.line
public function drawline():void
this.graphics.clear();
this.graphics.beginfill(fillcolor);
this.graphics.linestyle(1, fillcolor, 1);
this.graphics.moveto(_startpoint.x,_startpoint.y);
var xlen:number = -_startpoint.x + _endpoint.x;//起始點x座標差距
var ylen:number = -_startpoint.y + _endpoint.y;//起始點y座標差距
var linelen:number = math.sqrt(xlen * xlen + ylen * ylen);
//            if(_duration == 0)
//            	_duration = math.round(linelen * 20);
xtemp =( _linesize * xlen )/linelen;//求出 x 座標 count的偏移x座標差
ytemp =( _linesize * ylen )/linelen;//求出 y 座標count 的偏移y座標差
var x0:number = _startpoint.x;
var y0:number = _startpoint.y;
while((linelen/_linesize) >= 1)
else
count++;
linelen = linelen - _linesize;
}//			this.graphics.lineto(_endpoint.x , _endpoint.y);
this.graphics.endfill();
//畫箭頭 
arrow.startpoint = this.startpoint;
arrow.endpoint = this.endpoint;
arrow.arrowalign = arrowui.startpoint;
arrow.fillcolor = this.fillcolor;
arrow.draw(); 
var num:number = this.numchildren;
if(_domove)
}//線填充色(箭頭)
private var _fillcolor:uint=0x00ff00;//0x808080
public function set fillcolor(color:uint):void
[bindable]
public function get fillcolor():uint
//起點座標
public function set startpoint(p:point):void
public function get startpoint():point
//終點點座標
public function set endpoint(p:point):void
public function get endpoint():point
//虛線 空白長度
public function set linesize(num:number):void
public function get linesize():number
//是否顯示箭頭
public function set arrowvisible(num:boolean):void
public function set arrowdomove(num:boolean):void
//是否移動箭頭
public function stopmove():void
}public function get isplaying():boolean
public function get arrowobj():arrowui}}

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