| | 311 | * v.out.ogr: the meaning of the -c flag has been reverted in GRASS 7 because the default must be to export only features with categories in the selected layer (the user needs to select a GRASS vector layer for v.out.ogr which will be translated to an OGR layer). If features without category are exported, the logic of matching a GRASS vector layer to a OGR layer is violated. This is particularly true for areas with holes which are in simple feature terminology polygons with inner rings. These inner rings are holes in simple feature terminology and islands in GRASS terminology. If a GRASS area has no categories, it is most probably an island. Translated to simple features, you get a polygon with an inner ring and a second polygon identical to the inner ring. |
