gvSIG-Desktop 1.11. User manual
This tool splits geometries from the same layer. To perform the division, first switch the layer to edit mode and then use the selection tool to select the geometry to be split.
The "Split geometries" tool can be found on the editing toolbar.
Once the geometry has been selected,
click on the Split geometries icon. In the command window at the bottom the following message appears: "Insert first point." To split the geometry, draw a line where it should be divided. This is done by inserting a series of points that define the line along which the division is performed.
Double-click to finish digitising the line and to perform the split. Then use the selection tool to verify that the geometry has been split into different parts.
The split operation results in the creation of separate records for each part in the attribute table, rather than the single record that existed prior to the split.