[postgis-users] Associate CopyTopology Schema with TopoGeometry

[Stephen Woodbridge]

On 1/5/2014 8:14 PM, Ben Madin wrote:
> G’day,
>
> Can I ‘second’ this question! - I am trying to simplify complex
> geometries, and would love a way of duplicating them so I don’t have
> to rebuild the topological version every time I over-simplify…

I haven't tried this, but couldn't you do this in a big transaction and 
then if you don't like the results do a rollback or commit if it looks good.

-Steve

> cheers
>
> Ben
>
>
> On 2014-01-04, at 06:07 , Matt Kenny <matthewkenny at gmail.com> wrote:
>
>> Hello,
>>
>> I've created a series of topology schemas, copied using the
>> `CopyToplolgy` function [1].
>>
>> These schemas are not, by default, associated with any particular
>> layer/TopoGeometry. This can be seen in the contents of the layer
>> table [2].
>>
>> So, I'm wondering if it is possible to do one of the following: -
>> Create a new column of type topogeometry, and associate it with any
>> of these currently unassociated schemas. - Modify an existing
>> topogeometry column (in my example, somalia_admin1s.topogeoms)
>>
>> Thanks, Matt
>>
>> 1: http://postgis.net/docs/CopyTopology.html 2:
>> https://gist.github.com/mattmakesmaps/45fe32931cacdf40d107
>>
>> -- m a t t h e w k e n n y http://mattmakesmaps.com
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>
>