[postgis-users] Help with a postgis solution

Intengu Technologies sindile.bidla at gmail.com
Thu Jul 10 06:35:51 PDT 2008


I did the following steps: polygon into postgis - create polyline - node
polyline - repolygonize - create points from new polygon - transfer
attributes from old polygon to points - join points with attributes to new
polygon.  This is based from this example
http://www.postgis.org/support/wiki/index.php?ExamplesOverlayTables

I ran into the following challenges:
1. there are points where there are no polygons as shown in picture 7
2. the smaller polygons are composed of the original SMALL POLYGON and BIG
POLYGON

How can I solve this

Attached is a workflow of the entire process

-- 
Sindile Bidla
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