Unlike a number of software, the tool allows you to modify (multi)lines AND (multi)polygons. Moreover, it is not necessarily the end of the lines that is concerned; any segment of a geometry can be modified. The other side is that this can lead to invalid geometries, it is the responsibility of the user.
The tool asks you to select a limit (a segment) on which another segment will be extended or trimmed. Unlike the node tool, a check is performed to modify only the layer being edited.
When both segments are in 3D, the tool performs an interpolation on the limit segment to return the Z.
In the case of a trim, you must select the part that will be shortened by clicking on it.
This feature was funded by Mairie de Megève
This feature was developed by Loïc Bartoletti (Oslandia)