[postgis-devel] update topology locally
remi.cura at gmail.com
Wed Feb 11 02:49:05 PST 2015
I will finish the trigger stuff (that does not udpate left/right and face ,
but correctly link node and edge)
, then try to write a function that for a list of node, correct the
edge-linking of all linked edge.
2015-02-11 11:23 GMT+01:00 Sandro Santilli <strk at keybit.net>:
> On Wed, Feb 11, 2015 at 11:15:26AM +0100, Rémi Cura wrote:
> > Hey everybody (and most probably Sandro),
> > Work on trigger is going on.
> > I end up with a corrupted topology (by design):
> > I have list of nodes that have changed ,
> > association with edges has been updated and is correct (start_node,
> > end_node).
> > Now I would like a function to correct next_lft, next_right, and face
> > for the edge associated with my list of nodes.
> > Do you know if I can scavenge it somewhere?
> I've been actually thinking for some time that we'd need such a function.
> Right now the code computing that (which I call "edge linking") is buried
> into the ST_AddEdgeModFace and ST_AddEdgeNewFaces functions.
> The primitive block of such function could be GetNodeEdges:
> That function does not make use of "edge linking" fields.
> () Free GIS & Flash consultant/developer
> /\ http://strk.keybit.net/services.html
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