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Normal Topic Method Intersect (Read 2244 times)
pcone
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Method Intersect
Mar 14th, 2007 at 7:22am
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Hi.

I use the method
Arrow.Intersect(Arrow.Origin) and return always true, also when the arrow don't cross trought the box Arrow.Origin.

Why?
  
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Stoyo
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Re: Method Intersect
Reply #1 - Mar 14th, 2007 at 8:29am
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Hi,

I guess the one common pixel between the arrow and its origin node is enough for Intersects to return true. If you need to know whether the arrow crosses its origin, try using a temporary box slightly smaller (say 0.5mm) than the origin and call Intersects for it.

Stoyan
  
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pcone
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Re: Method Intersect
Reply #2 - Mar 14th, 2007 at 10:45am
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Is there e method who delete a Box after i create it?

i use this method:

Code
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public bool Intersect(Arrow a, Box b)
{
Box temp;

temp = this.flow.CreateBox((b.BoundingRect.X)+1,(b.BoundingRect.Y)+1,(b.BoundingRect.Size.Width - 2 ),(b.BoundingRect.Size.Height - 2));

return a.Intersects(temp);

this.flow.DeleteObject((Box)temp);
}


but box still remain on the flow chart.
  
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Stoyo
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Re: Method Intersect
Reply #3 - Mar 14th, 2007 at 12:05pm
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The function returns before DeleteObject executes -

return a.Intersects(temp);
this.flow.DeleteObject((Box)temp);

Stoyan
  
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pcone
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Re: Method Intersect
Reply #4 - Mar 14th, 2007 at 12:26pm
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Sorry, i didn't notice!
  
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