Hi devs,
I am trying to clean a map using v.clean. When using rmarea, any threshold values > 0.45 for rmarea results in 'ERROR: Failed to build new area'. From the manual I understand that the threshold for rmarea must be in square meters (also for latitude-longitude locations). With areas of polygons at least being 50m2, and mostly well above 10000m2, I am not sure what is happening, any idea?
Rgds
Paulo
On Fri, Jan 20, 2017 at 8:37 PM, Paulo van Breugel <p.vanbreugel@gmail.com> wrote:
Hi devs,
I am trying to clean a map using v.clean. When using rmarea, any threshold values > 0.45 for rmarea results in ‘ERROR: Failed to build new area’.
That should not happen, it is an error in the method to remove small areas. Can you provide the vector map for testing (offlist)?
Markus M
From the manual I understand that the threshold for rmarea must be in square meters (also for latitude-longitude locations). With areas of polygons at least being 50m2, and mostly well above 10000m2, I am not sure what is happening, any idea?
Rgds
Paulo
grass-dev mailing list
grass-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-dev
Hi Markus, the tool works as advertised after the latest revision. So perhaps this problem was related the the issue reported in ticket #3266? Thanks in any case!
On 21-01-17 21:29, Markus Metz wrote:
On Fri, Jan 20, 2017 at 8:37 PM, Paulo van Breugel <p.vanbreugel@gmail.com> wrote:
Hi devs,
I am trying to clean a map using v.clean. When using rmarea, any threshold values > 0.45 for rmarea results in ‘ERROR: Failed to build new area’.
That should not happen, it is an error in the method to remove small areas. Can you provide the vector map for testing (offlist)?
Markus M
From the manual I understand that the threshold for rmarea must be in square meters (also for latitude-longitude locations). With areas of polygons at least being 50m2, and mostly well above 10000m2, I am not sure what is happening, any idea?
Rgds
Paulo
grass-dev mailing list
grass-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-dev
On Sun, Jan 22, 2017 at 3:46 PM, Paulo van Breugel <p.vanbreugel@gmail.com> wrote:
On 21-01-17 21:29, Markus Metz wrote:
On Fri, Jan 20, 2017 at 8:37 PM, Paulo van Breugel <p.vanbreugel@gmail.com> wrote:
Hi devs,
I am trying to clean a map using v.clean. When using rmarea, any threshold values > 0.45 for rmarea results in ‘ERROR: Failed to build new area’.
That should not happen, it is an error in the method to remove small areas. Can you provide the vector map for testing (offlist)?
Markus M
Hi Markus, the tool works as advertised after the latest revision. So perhaps this problem was related the the issue reported in ticket #3266? Thanks in any case!
Glad to hear it is working. BTW, the relevant code was last changed 2 years ago.
Markus M
From the manual I understand that the threshold for rmarea must be in square meters (also for latitude-longitude locations). With areas of polygons at least being 50m2, and mostly well above 10000m2, I am not sure what is happening, any idea?
Rgds
Paulo
grass-dev mailing list
grass-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-dev
On Mon, Jan 23, 2017 at 9:59 AM, Markus Metz <markus.metz.giswork@gmail.com>
wrote:
On Sun, Jan 22, 2017 at 3:46 PM, Paulo van Breugel <p.vanbreugel@gmail.com>
wrote:
>
>
>
> On 21-01-17 21:29, Markus Metz wrote:
>
>
>
> On Fri, Jan 20, 2017 at 8:37 PM, Paulo van Breugel <
p.vanbreugel@gmail.com> wrote:
> >
> > Hi devs,
> >
> > I am trying to clean a map using v.clean. When using rmarea, any
threshold values > 0.45 for rmarea results in 'ERROR: Failed to build new
area'.
>
> That should not happen, it is an error in the method to remove small
areas. Can you provide the vector map for testing (offlist)?
>
> Markus M
>
>
> Hi Markus, the tool works as advertised after the latest revision. So
perhaps this problem was related the the issue reported in ticket #3266?
Thanks in any case!Glad to hear it is working. BTW, the relevant code was last changed 2
years ago.
Ah, then I guess that was not the relevant code for the problem I
experienced. I regularly update grass, and I never experienced this problem
until recently. Perhaps there was something wrong on my side in that case?
Irrespective, very glad it works again 
Markus M
>
>
> > From the manual I understand that the threshold for rmarea must be in
square meters (also for latitude-longitude locations). With areas of
polygons at least being 50m2, and mostly well above 10000m2, I am not sure
what is happening, any idea?
> >
> > Rgds
> >
> > Paulo
> >
> > _______________________________________________
> > grass-dev mailing list
> > grass-dev@lists.osgeo.org
> > https://lists.osgeo.org/mailman/listinfo/grass-dev
>
>