public function draw(g:Graphics, fromView:UIComponent, toView:UIComponent, fromX:int, fromY:int, toX:int, toY:int, graph:Graph):Boolean SpringGraph will call this function each time it needs to draw
a link connecting two itemRenderer.
Note that fromView.data is the 'from' Item and toView.data is the 'to' Item.
Parameters
| g:Graphics — a Flash graphics object, representing the entire screen area of the
SpringGraph component. You can use various Flash drawing commands to draw
onto this drawing surface
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| fromView:UIComponent — the itemRenderer instance for the 'from' Item of this linik
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| toView:UIComponent — the itemRenderer instance for the 'to' Item of this link
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| fromX:int — the x-coordinate of fromView
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| fromY:int — the y-coordinate of fromView
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| toX:int — the x-coordinate of toView
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| toY:int — the y-coordinate of toView
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| graph:Graph — the Graph that we are drawing
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Returns
| Boolean — true if we successfully drew the edge, false if we want the SpringGraph
to draw the edge.
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