Polyline inside and tangent to polyline
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Polyline inside and tangent to polyline

 
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R3v3nG3
Guest
Posted: Thu Jul 28, 2005 4:10 pm    Post subject: Polyline inside and tangent to polyline Reply with quote
Hi all,
I need to be able to understand if a poly is contained inside another
poly. I'm using SelectByPolygon with acSelectionSetCrossingPolygon
option. The problem is that in this way an external poly tangent to
another one is considered inside.
I try to explain the problem better.
Let's say you have poly A, which contains and share a side with poly B.
Poly A is also tangent to an external poly C. Well, the selection
acSelectionSetCrossingPolygon poly A will contain poly B and C and not
only B. How can I understand if a poly is really contained and not only
tanget to another one?
Thanks.

-----------
|A |------ PS: Sorry for the poor ascii art!
| ---| C|
| |B | |
| ---| |
| | |
| |------
-----------

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Jayant
Guest
Posted: Tue Aug 02, 2005 12:10 pm    Post subject: Re: Polyline inside and tangent to polyline Reply with quote
Use acSelectionSetWindowPolygon
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R3v3nG3
Guest
Posted: Tue Aug 02, 2005 4:10 pm    Post subject: Re: Polyline inside and tangent to polyline Reply with quote
Thanks for the answer but using acSelectionSetWindowPolygon will not
select an internal poly which is tangent to the container poly.
Referring to my previous example, B would not be present in the
selection.

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