Take a look at http://grass.itc.it/grass64/manuals/html64_user/v.generalize.html
it may help you
--- Στις Παρ., 08/01/10, ο/η henry83 heam...@gmail.com έγραψε:
Από: henry83 heam...@gmail.com
Θέμα: Re: [GRASS-user] v.out.ogr kml error
Προς: grass-user@lists.osgeo.org
Ημερομηνία: Παρασκευή, 8
Thank you guys you have been quite helpful, there are a few things I would
like to comment. First of all the first time I used v.out.ogr to export the
generated contours to kml I did it over contours build up over an
overgeoreferenced raster, what I mean is that I had a georeference bigger
than
Something I'm thinking by now, what is the unit of the step parameter of the
r.contour command, I need meters and I think the step is not in meters. Am I
right?
And how do I change the colour of the generated contours in the kml file?
Thanks.
henry83 wrote:
Hi everyone! I have created a
henry83 wrote:
Something I'm thinking by now, what is the unit of the step
parameter of the r.contour command, I need meters and I think
the step is not in meters. Am I right?
it is in whatever units the raster's elevation data is in.
Unless you've explicitly set units with r.support, the GIS
Try to export your data to shapefile and then use ogr2ogr to convert the shp to
kml.
--- Στις Πέμ., 07/01/10, ο/η henry83 heam...@gmail.com έγραψε:
Από: henry83 heam...@gmail.com
Θέμα: [GRASS-user] v.out.ogr kml error
Προς: grass-user@lists.osgeo.org
Ημερομηνία: Πέμπτη, 7 Ιανουάριος 2010, 2:06
Thank you Leonidas I will try to do it that way and hope it works, but before
that I would like to get the contours as less dispersed polylines. As you
can see in the image I have attached contours doesn't look as smoth lines as
I would like, do you know how to improve this? Thank you.
henry83 wrote:
I would like to get the contours as less dispersed polylines. As you
can see in the image I have attached contours doesn't look
as smoth lines as
I would like, do you know how to improve this? Thank you.
http://n2.nabble.com/file/n4269927/contours.png
v.generalize
Hamish
Hi everyone! I have created a contour map from a SRTM elevation model, after
filling nulls, filling depressions and creating the contour map I need to
export it to kml.
I have used the following command
v.out.ogr input=srtm_contours dsn=/home/henry/srtm_contours.kml format=KML
output:
