Re: [GRASS-user] v.clean Failed to build area

2018-05-02 Thread Heidi Ochis
My best guess is each line is creating a close polyline - which is why the islands do not have duplicate points. We wrote a program to run though each line, identify the location each line begins to backtrack, then break and remove the remaining points. Unfortunately, some of the contours

Re: [GRASS-user] v.clean Failed to build area

2018-05-02 Thread Markus Metz
Hi Peter, On Tue, May 1, 2018 at 11:33 PM, Peter Tittmann wrote: > > Hi Markus, > > I'm ashamed to admit that I hacked my way into fixing this problem by exporting the vector dataset using `v.out.ogr` to a geopackage then importing it. The cleaning tools in v.in.ogr seemed

Re: [GRASS-user] v.clean Failed to build area

2018-05-01 Thread Peter Tittmann
Hi Markus, I'm ashamed to admit that I hacked my way into fixing this problem by exporting the vector dataset using `v.out.ogr` to a geopackage then importing it. The cleaning tools in v.in.ogr seemed to solve my problem.. Very clumsy, but it worked. Thank you! Peter On Fri, Apr 27, 2018 at

Re: [GRASS-user] v.clean Failed to build area

2018-04-27 Thread Markus Metz
[ please keep this on the GRASS mailing list ] On Fri, Apr 27, 2018 at 6:43 PM, Peter Tittmann wrote: > > Hi Markus, > > grass72 -v > GRASS GIS 7.2.2 This is already the latest 7.2 release. You might try GRASS 7.4. > > i will try to figure out how to get the latest release

Re: [GRASS-user] v.clean Failed to build area

2018-04-27 Thread Markus Metz
On Fri, Apr 27, 2018 at 1:37 AM, Peter Tittmann wrote: > > Hi, > > I am attempting to use the `rmarea` tool in v.clean with a threshold of ~ 1000 sq meters. > [...] > > I am getting a rather cryptic message ‘Failed to build area’. > > > v.clean -c --overwrite --verbose

[GRASS-user] v.clean Failed to build area

2018-04-26 Thread Peter Tittmann
Hi, I am attempting to use the `rmarea` tool in v.clean with a threshold of ~ 1000 sq meters. projection is the following: g.proj -p -PROJ_INFO- name : NAD83 / UTM zone 5N datum : nad83 ellps : grs80 proj : utm zone :