[Qgis-user] polygon formation problems!

[Goyo]

El sáb, 31-01-2009 a las 20:57 +0000, ambrish dhaka escribió:
> Hello! Qgis users,
> I am a new user of qgis and wish to switch to open source but there
> are some usage difficulties that I need to be resolved.
> The polygons are created either by capture or splitting. There is no
> provision for creating an adjacent polygon with the help of a line.
> Secondly, whenever there are two polygons having common segment then
> there is overlaying of lines, which means that once the vertices are
> touched there is no more single common segment and it shows into two
> different segments. It has several demerits in terms of accuracy.

Did you try using GRASS vector layers? They use a more topological model than shapefiles.

Goyo