Hi This question is not as much QGIS specific but more about generic GIS concepts.
In all of the tutorials I have watched so far rivers is represented as lines. This makes sense and if you were to do later analysis I would imagine a line would make it easier to get information like the length of all rivers in an area. However rivers do not play nice and have varying widths. I could adjust the line width but that would only be accurate for a certain part of the river. My question is thus how do you represent a river of any feature for that matter, of varying width and substantial length. If the river is a polygon then I would loose the ability to extract length data or is that assumption wrong? Do I represent a river/feature as both a line and a polygon then? Regards -- Gerhardus Geldenhuis
_______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
