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Normal Topic GetArrowAt() (Read 2776 times)
Hallo.Amt
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GetArrowAt()
Mar 24th, 2006 at 7:47am
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Hi there,

I just tried to create an arrow context menu using GetArrowAt(). It looks like that

Arrow arr = FC.GetArrowAt(e.Location,10f) as Arrow;
if (arr != null)
{
//Show arrow context menu
}
else
{
//Show normal context menu
}

It seems like the GetArrowAt() is just looking in the area beneath the arrow and not above it. I also tried with maxDist = -10 but it did not help.

Thanks Justus

P.S. I'm using version 4.03
  
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Stoyo
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Re: GetArrowAt()
Reply #1 - Mar 24th, 2006 at 10:37am
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Hi,

What is the arrow.Style ? GetArrowAt looks at boths sides of the arrow, but Bezier arrows are approximated with several straight line segments and the approximation might not be accurate if the Bezier curve bends a lot.

Stoyan
  
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Hallo.Amt
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Re: GetArrowAt()
Reply #2 - Mar 26th, 2006 at 8:31pm
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Hi,

Thanks for your reply. The arrow.Stiyle ist Straight or Cascading. But it sems quite random to me wether i get an arrow or not, in one diagram it works above in another not at all. Seems a little random to me  ???

Justus
  
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Stoyo
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Re: GetArrowAt()
Reply #3 - Mar 27th, 2006 at 5:41am
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Do you invoke GetArrowAt in the handler of the DocClicked event? This event is raised only if users click on an empty spot of the document and not on a diagram element, so if they click an arrow, the code would not be executed at all.

If that is the case, try handling the ArrowClicked event and keep in mind that the coordinates supplied to this event are relative to the BoundingRectangle of the clicked arrow.

Stoyo
« Last Edit: Mar 27th, 2006 at 8:14am by Stoyo »  
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Hallo.Amt
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Re: GetArrowAt()
Reply #4 - Mar 27th, 2006 at 7:15am
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Thanks,

Works great with Arrow clicked. I used the MouseUp-event before.

Justus
  
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