2014 © Giuseppe De Marco
The clipper plugin is a python plugins that performs a missing feature of current (2.2) Qgis Version: clipping of features inside the same shapefile from a selected feature (line or polygon). Polygon clipping from a selected polygon features clips all intersecting features and returns clipped features with the same attributes deleting old ones: do not worry you have to confirm your edits by saving edits for the layer manually! Linestring clipping should be considered as trim/split feature: it takes as cutting line a selected line from active layer and split all intersecting lines. After the splitting you will have the chance to manually delete unwanted split parts.
Any contribution is most appreciated.
Giuseppe De Marco