The areas you create are not labelled (means that v.to.rast will give
you an empty file). Snapping doesn't help. Labelling is done via the
dig_att file : an entry for each area or line to be labelled made as
following for an area :
A xxxxxx yyyyyy nn
A means area (L for line), xxxxx and yyyyyy are the coordinates of the
label point (inside the area), and nn is the area number (> 0).
Try to use v.digit after running v.support. There is some command
to show unlabelled areas. You can label each area interactively.
If some areas cannot be labelled, look at the nodes around them (and
zoom)
If there is some green dots, that's mean that a line doesn't match
any other. You can snap manualy lines together, solving the unclosed
polygon problem. After that rerun v.support to label area, and
v.to.rast
will work.
If you have some labels in dxf, you can import them in the dig_att file
with respect to the format showed above (v.digit is sometimes boring
The problem is that I want to get the polygon topology of a very big DXF
(snapping manually all the lines would be VERY VERY boring). In the
other hand, the results must in a vector (not raster) format, because I
want to export the results into another vector format; because of that I
can't use v.to.raster (I would get a raster map).
Is there any way to close all the areas automatically into a vector
map?.
Attached to this message is a little example of my DXF. I would be very
grateful if someone could explain me the steps to do in order to obtain
a vector map with all the areas contained in the DXF.
Thank tou very much for your time!!!
Juan Bañuls
______________________________________________________
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On Tue, 23 Feb 1999, Juan Baquls wrote:
>The areas you create are not labelled (means that v.to.rast will give
>you an empty file). Snapping doesn't help. Labelling is done via the
>dig_att file : an entry for each area or line to be labelled made as
>following for an area :
>
>A xxxxxx yyyyyy nn
>
>A means area (L for line), xxxxx and yyyyyy are the coordinates of the
>label point (inside the area), and nn is the area number (> 0).
>
>Try to use v.digit after running v.support. There is some command
>to show unlabelled areas. You can label each area interactively.
>If some areas cannot be labelled, look at the nodes around them (and
>zoom)
>If there is some green dots, that's mean that a line doesn't match
>any other. You can snap manualy lines together, solving the unclosed
>polygon problem. After that rerun v.support to label area, and=20
v.to.rast
>will work.
>
>If you have some labels in dxf, you can import them in the dig_att file
>with respect to the format showed above (v.digit is sometimes boring=20
>
>--=3D20
>Michel Wurtz ENGEES - Laboratoire Territoires & Environnement
> 1, quai Koch - BP 1039, F-67070 STRASBOURG cedex
> Tel: +33 03.88.24.82.45 Fax: +33 03.88.37.04.97
The problem is that I want to get the polygon topology of a very big DXF=20
(snapping manually all the lines would be VERY VERY boring). In the=20
other hand, the results must in a vector (not raster) format, because I=20
want to export the results into another vector format; because of that I=20
can't use v.to.raster (I would get a raster map).=20
Is there any way to close all the areas automatically into a vector=20
map?.=20
Attached to this message is a little example of my DXF. I would be very=20
grateful if someone could explain me the steps to do in order to obtain=20
a vector map with all the areas contained in the DXF.
Thank tou very much for your time!!!
Juan Ba=F1uls
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
