Hi, 2010/4/6 G. Allegri <[email protected]>: > Ok, I see in http://trac.osgeo.org/grass/changeset/39161. The core > work is done in open.c depending on the @Mapset name. If it's 'ogr' > the vectors are opened as direct ogr, and level 1 (without topoloy). > So also polygons can be opened as level 1?
direct read access means that topology is build when OGR datasource is open. You can avoid build-topo-on-open when you link OGR layer via v.external, then topology is saved in topo file (which can cause problems when original data is modified and 'topo' file remains out-dated). Martin -- Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
