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<font face="Times New Roman, Times, serif">Thanks Paul, that was
indeed what I was looking for. <br>
<br>
I'm not sure if it would be wise to switch already to OL3 at this
moment. What would you suggest would be a reasonable time to wait
for the definitive version for a production environment? And would
it make sense to work in the meantime on my original idea,
implementing this functionality within PostGIS-topology?<br>
<br>
Jan<br>
<br>
</font>
<div class="moz-cite-prefix">On 01/05/2014 07:47 PM, Paul Ramsey
wrote:<br>
</div>
<blockquote
cite="mid:CACowWR2TvL0N2r-AKEF3+ma8QFfzKHCqsAaE4G054anbxbtJ7A@mail.gmail.com"
type="cite">
<pre wrap="">Maybe on OL3?
<a class="moz-txt-link-freetext" href="http://vimeo.com/78298228">http://vimeo.com/78298228</a>
P
On Fri, Jan 3, 2014 at 4:14 AM, Jan Hartmann <a class="moz-txt-link-rfc2396E" href="mailto:j.l.h.hartmann@uva.nl"><j.l.h.hartmann@uva.nl></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hi all,
I have written a simple OpenLayers-application to edit a PostGIS polygon
layer: read one polygon from the server as GeoJSON, adapt it interactively,
and write it back again via GeoJSON. Points are only moved, not created or
deleted.
The polygon layer is topologically correct: all adjoining polygons share the
same points. With QGIS I can choose "topological editing", to automatically
move corresponding points from adjoining polygons. With the GeoJSON
application that is not possible: whenever I move a boundary point of one
polygon, the corresponding points on adjoining polygons remain where they
are.
Is it possible with the new topology methods in PostGIS to write the
following update procedure: whenever a changed polygon is written back into
the database, all corresponding points on neighbouring polygons will be
looked up and changed as well? I guess I would need some sort of pointer for
all boundary points to all other boundary points that share the same
location.
Jan
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