[postgis-users] Trying to remove duplicate polygons with some restrictions

[Teodora Vuscan]

I am new to postgis and I would appreciate your help.
I have a shape file where some polygons are duplicated (or almost the same)
and I would like to remove the duplicate ones. I cannot apply the distinct
on geometry because that would delete some of the duplicates I need. 
Here is what I need:
1. 2 polygons have same geometry but different attributes - I need both; 2.
2 polygons have same geometry but one has data attached to it, one does not.
In this case I want to remove the one that has no data.
3. 2 polygons have same geometry but none have data - I want to keep one.
In the same file I also have a different scenario: the areas of the
"duplicated" polygons are slightly different.

I appreciate your help.

Teo

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Gustavo
Ces
Sent: Wednesday, September 17, 2008 9:01 AM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] ArcGIS Mobile slightly off-topic question

Hi Regina,

    easiest way is to create your model in Model Builder and then export it,

as someone has mentionated. Then you can export it as script and modify it.
    There isn´t a lot of info about this topic. Arcgis help is not very 
useful ( sometimes the help examples doesn´t work). You have to be careful 
with python versions supported by your arcgis version ( there is info in 
ESRI forums about how to change your python version, and wich are suported).

There is a geoprocessor model pdf, but no info about toolboxes methods... 
It´s a try-error process to understand each toolboxes' methods... And as you

can find  in ESRI forums, sometimes it doesn´t work...
    I´ve got some docs recopilated about this topic. If you´re interested 
send me a mail.

Gus


 

_______________________________________________
postgis-users mailing list
postgis-users at postgis.refractions.net
http://postgis.refractions.net/mailman/listinfo/postgis-users