Re: [OpenMap Users] Finding the overlapping components

Hi Peter,

You can find out if two OMGraphics generally overlap by taking their
Shape objects and calling intersets() on one of them with the other,
but that just does a bounding box comparison. You can create
java.awt.geom.Area out of the Shape objects to get a precise result.

As for comparing all of the Shapes on a layer against each other, if
you have a lot of OMGraphics I'm sure there's an established algorithm
for that somewhere on the web, I just can't think of one off the top of
my head.

- Don

On Jan 21, 2004, at 3:44 PM, Pan, Peter wrote:

> Hi!
> We have a customized layer that displayed a lot of the rectangular
> graphics
> components. Is there anyway to find on this layer what components
> actually
> overplaying each other?
>
> Thanks for your help,
> Peter
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