Used to accept the previous vector element and start a new vector element with the selected theme.

There are several ways of using this tool. When raster data is not present or is not used, it can be a straight heads-up digitizing tool, directly controlled by the operator. If raster data is correctly defined with a color mask, this tool can be used for automatic line conversion.

Here are a few procedures with various settings or selections. The first two are purely manual.