I have to create vegetation and sensitivity maps for sites. I have a site boundary shapefile and map from raster aerial imagery behind the site boundary vector.
When I used to use Arc I used the cut polygon tool. This allowed me to create a one shapefile vegmap with different polygons that I could label according to what they are (eg: forest, grassland, disturbed areas). The cool thing about this is that it eliminated any of those slivers of areas not mapped or intersecting polygons). This is important as I need to use the map to calculate areas of each of the different vegtypes.
I cannot seem to find a similar function in QGIS. I have fiddled with snapping and it really isn't good enough. It will take me hours and hours to individually snap the vertices for a small map, let alone a huge and intricate one!
Does anyone have an answer for me to do this in QGIS?
I have not got ArcGIS Desktop and cannot do it there.
Best Answer
You could use the Digitizing Tools plugin, that contains te cut-by-polygon, cut-by hand and other features like that. (go to Plugins-> manage and install plugins - > search for digitizing tools -> click install)