Hi, strk, thx for explaination. >> Is this allowed ? > >I'm redrawing the schema for simplification. > >You ask: >assuming there's a TopoGeometry T1 defined by F1, >is the following editing allowed ? > > +----+----+ +---------+ > | | | | | > | F1 e F2 | => | F1 | > | | | | | > +----+----+ +---------+ > >No, because doing so would change the shape of T1. > >--strk;
So, I guess, if I have a topology constraint by a topogeometry layer. This is a really big question, because I understand that if I put a topogeometry over a topology I lock (practically) the topology. Infact I have quite few choice to editing it if I have put a TopoGeometry on it. Perhaps I could try this option ? Always with a TopoGeometry applied over it. Topogeometry T1 on Face F1. First change edge from this (moving the external edge of F2 and moving also the edge "e") I guess the ST_ChangeEdge should allow me move the edge "e". +----+----+ +---------+-----+ | | | | | | | F1 e F2 | => | F1 e F2 | | | | | | | +----+----+ +---------+-----+ and after this remove the external edge of F2 +---------+ | | => | F1 e | | +---------+ Is this allowed ? Andrea -- ----------------- Andrea Peri . . . . . . . . . qwerty àèìòù -----------------
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