<pre>>Thats why I said to remove just the primitives which depend on the 
>geometry deleted (and not from any other one). This way one can clean 
>the primitives which are not shared by any other geometry. Its like the 
>garbage collector Sandro said before.
>After that one can insert again the whole modified geometry.
>Dont know if I could explain myself.
<br>Sorry, but I'm not sure to understand <br></pre>So I try to do an example.<br>
Suppose to have this topology and every topogeometry is coincident with a single face<br>
<br>    +----e1-------+----e2-------+----e3-------+<br>    |             |             |             |<br>    |             |             |             |<br>    |    F1       |    F2       |     F3      |<br>    e13          e14           e15           e16<br>
    |             |             |             |<br>    |             |             |             |<br>    +-----e4------+----e5-------+-----e6------+<br>    |             |             |             |<br>    |             |             |             |<br>
    |     F4      |     F5      |     F6      |<br>   e17           e18           e19           e20<br>    |             |             |             |<br>    |             |             |             |<br>    +-----e7------+-----e8------+-----e9------+<br>
    |             |             |             |<br>    |             |             |             |<br>    |     F9      |     F8      |     F7      |<br>   e21           e22           e23           e24<br>    |             |             |             |<br>
    |             |             |             |<br>    +-----e10-----+-----e11-----+-----e12-----+<br><br>topogeometry T1 = face F1<br>T2 = F2 <br>and so on..<br><br>If I suppose to whan remove the edge e19.<br>That edge I plan to remove is boundary between the F5 and F6 and so the edge e19 is boundary on<br>
Topogeometry T5 and topogeometry T6.<br><br>You suppose to remove temporary the topogeometry T5 and T6 right ?<br>After this use the ST_RemEdgeModFace to remove the edge "e19" and after this reapply the two topogeometry<br>
T5 and T6 using the totopogeo ?<br>I fear that the totopogeom will re.create the edge e19 calling it "e25" :(<br><br><br>-- <br>-----------------<br>Andrea Peri<br>. . . . . . . . . <br>qwerty àèìòù<br>-----------------<br>
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