AutoCAD Map 3D General Discussion

AutoCAD Map 3D General Discussion

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New Member
mvitiello
Posts: 2
Registered: ‎01-09-2002
Message 1 of 5 (260 Views)

Exporting Polygons to ArcView 3.2

260 Views, 4 Replies
01-09-2002 09:24 PM
When attempting to export closed polygons to an ArcView shapefile using Map 5 it only selects 3185 of 4426 polygons.
Why does Map fail to recognize all of the polygons when exporting.
*Christian, Mark
Message 2 of 5 (260 Views)

Re: Exporting Polygons to ArcView 3.2

01-10-2002 06:40 AM in reply to: mvitiello
Hello,

 

here are my thoughts on this issue:

How are you selecting your objects for
export?  Are you using automatic selection?  How about any layer
filters?  Also, are all the layers turned on where the polygons
exist? 

 

Regards,

 

Mark Christian
GIS Product Support
Autodesk, Inc.


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When
attempting to export closed polygons to an ArcView shapefile using Map 5 it
only selects 3185 of 4426 polygons.
Why does Map fail to recognize all of
the polygons when exporting.
Active Contributor
richard.denier
Posts: 32
Registered: ‎04-13-2003
Message 3 of 5 (260 Views)

Re: Exporting Polygons to ArcView 3.2

01-10-2002 08:37 PM in reply to: mvitiello
An other problem with this issue is that islands in areas will not act as holes in ArcView. There will be to sepparated shapes on top of each other. There will be a patch comming out for this.
Active Contributor
RGibson
Posts: 45
Registered: ‎10-20-2003
Message 4 of 5 (260 Views)

Re:

01-10-2002 10:42 PM in reply to: mvitiello
Be sure that what you think are polygons are, in fact, CLOSED polygons. The closing vertices must meet to the Nth decimal place. A method to check is to perform a BPOLY in the area and see if the new polygon exports. If so, it means the polygon(s) in question has a closure error. Even if it's out to the 6th decimal place........Cadcare brings up a good point regarding islands. A workaround is to select the polygons that represent "islands" or "holes" LAST when selecting for export. That way, they will be in "front" in the ArcView display and can be colored via symbology to actually appear as an "island" or "hole".
*O'Brien, M
Message 5 of 5 (260 Views)

Re:

01-11-2002 09:07 AM in reply to: mvitiello
cadcare wrote:

> There will be a patch comming out for this.

Who will the patch be coming from? I have tried using "group complex
polygons" and attaching object data to the polgons but Map does not seem
to reverse the direction of the enclosed polygon.
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