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Regular Contributor
Posts: 170
Registered: ‎07-07-2016
Accepted Solution

GMSC2016 Postgis geometry collection

I've configured a feature with GeometryCollection type. While Creating new geometry in gmsc2016 I'm drawing two polugons. Unfortunatelly, in database it is being saved as two separate records. So I have two questions:

1.Is GMSC2016+postgis supports geometrycollection ?

2.What can I do, to prevent user from drawing multiple objects, i.e. can I disable GE_NEWPOLYGON button when first geometry is drew?


Frequent Contributor
Posts: 86
Registered: ‎11-20-2015

Re: GMSC2016 Postgis geometry collection



  1. As far as I  know PostGis does NOT support GeometryCollections, but
  2. What you want to save is a MultiPolygon, which is working. But you have to merge the 2 polygons (GeometryAction GE_MERGE) before you click save  in the edit-panel.

The only possibility to prevent the user to draw more than one polygon is by writing a GeometryValidator, which is called when you click on save in the edit-panel.




Regular Contributor
Posts: 170
Registered: ‎07-07-2016

Re: GMSC2016 Postgis geometry collection

Thanks for the answer.