Hi Laura,
This is probably easy to solve:
* Settings --> Snapping Options --> Checkbox "Enable topological
editing"
Does it work for you?
Depending on the QGIS version the setting may be at a different place
in the menu.
Andreas
On Mon, 27 Jun 2011 16:32:53 +0200, Laura Guillot wrote:
I'm trying to reshape polygons of a lancover map, in order to make
them to be more
coincident with an overlaid raster image (orthophoto 1:5M).
If I just move the nodes to the correct position, I create a correct
line but leave a hole behind: the other
polygon keeps its line where it was. See a pict here:
https://sites.google.com/site/lguillotdummy/home/boundaryproblem.jpeg
[1]
Is there any way I could just move the lines as boundaries?
I've tried by converting poygons to lines first, but the problem is
very much the same: it seems like
there is always a double line, one for each adjacent polygon.
A possible solution would be having the lines automatically cut into
segments, each going from one vertex to another.
And having just one segment for each boundary. Is that possible? Is
there a process to cut into segments after running polygons to lines?
Or perhaps there is a cmpletely different way to accomplish the same
goal: modifying the boundaries between polygons.
Thanks!
L
Links:
------
[1]
https://sites.google.com/site/lguillotdummy/home/boundaryproblem.jpeg
--
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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