[postgis-users] simplify creates geom collection?

[Burgholzer,Robert]

I have experienced an instance where using simplify, depending on the
threshold chose, creates a geometry collection, rather than a
multipolygon (which was my source shape type).

 

I am unsure of exactly what is happening, but I know that with my
particular shapes, a threshold of 0.0025 (dd) caused the problem, but
0.002 was OK.  

 

Is this a bug, a feature, or operator error?

 

Robert W. Burgholzer

Surface Water Modeler

Office of Water Supply and Planning

Virginia Department of Environmental Quality

rwburgholzer at deq.virginia.gov

804-698-4405

Open Source Modeling Tools:

http://sourceforge.net/projects/npsource/

Web-Based Water Supply Planning Demo:

http://soulswimmer.dynalias.net/models/wsdemo/demo_hsi.php

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20071005/de7fcac3/attachment.html>