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 Vector Objects - intersection or merge		  New Topic  Reply to Topic
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haida2

Liechtenstein
1 Posts
Posted - Jun 28 2012 :  09:16:27  Show Profile  Reply
Hi @all,

is it possible with TImageEnVect to get the intersection of two polygons?

I need to calculate the area of this intersecting polygon. A workarount would be to merge the two polygons and then subtract this area value from the sum of the single areas.

Is one of these possible? I did not find something in the help nor in this forum.

Thanks a lot!

fab

1310 Posts
Posted - Jul 20 2012 :  13:50:15  Show Profile  Reply
Hi,
TImageEnVect cannot calc the intersection of two polygons.
Anyway on the internet you can find are several algorithms (you can get each polygon point from TImageEnVect) ready, and also free libraries (ie http://www.cs.man.ac.uk/~toby/alan/software/gpc.html).
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