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Normal Topic Node/Table intersection (Read 2829 times)
asloan
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Node/Table intersection
May 16th, 2006 at 3:47pm
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What is the best way to determine if two FC objects intersect?

When my diagram is created, I create a "Legend" table which I place in the top left of the diagram.  Almost always, it is on top of nodes in the diagram.  What I want to do is move it directly down until it is not obscuring any nodes in the diagram.

Thanks,
Alan
  
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Stoyo
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Re: Node/Table intersection
Reply #1 - May 16th, 2006 at 5:20pm
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Hi,

You could use the NodesIntersect method to determine whether the legend box intersects with other boxes. That would require testing the legend against all other boxes, and if there is intersection, moving the legend down at some distance.

Stoyan
  
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asloan
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Re: Node/Table intersection
Reply #2 - May 17th, 2006 at 2:50pm
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Thanks!  That's what I thought, but I was hoping that there was an easier way.  When you get over 1000 boxes on a diagram, this can take a while.

Alan
  
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Stoyo
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Re: Node/Table intersection
Reply #3 - May 17th, 2006 at 5:27pm
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Well, you could call FitDocToObjects, get the DocBottom, put the legend there and restore the original document size. However that will place the legend below all boxes along the whole X axis, whereas the first method will only place it under the bottom-most box on the same X location where the legend is. You can speed that up a bit by calling NodesIntersect only for boxes whose Left value is smaller than the legend's Right value.

Stoyan
  
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