Re: [GRASS-user] Points to area workflow [RESOLVED]

2019-07-20 Thread Rich Shepard
On Sat, 20 Jul 2019, Rich Shepard wrote: but why are there two 1's after the 'C' for centroid? Ah, the number of categories. Rich ___ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Points to area workflow

2019-07-20 Thread Rich Shepard
On Sat, 20 Jul 2019, Helmut Kudrnovsky wrote: in the bottom of the manual (https://grass.osgeo.org/grass76/manuals/v.in.ascii.html) there is a link to GRASS ASCII vector format specification Helmut, Thanks very much. It's also on the 7.7 manual page, but it hadn't registered with me when I

Re: [GRASS-user] Points to area workflow

2019-07-20 Thread Helmut Kudrnovsky
>Where are the standard format >details described in detail? in the bottom of the manual (https://grass.osgeo.org/grass76/manuals/v.in.ascii.html) there is a link to /GRASS ASCII vector format specification/ - best regards Helmut -- Sent from:

Re: [GRASS-user] Points to area workflow

2019-07-20 Thread Rich Shepard
On Sat, 20 Jul 2019, Micha Silver wrote: If you want to go straight from the point coordinates to a polygon, you can use the GRASS standard ASCII format and pipe directly to v.in.ascii: echo "VERTI: B 1 5 -123.94 45.150100 -123.94 45.145400 -123.96 45.145400 -123.96

Re: [GRASS-user] Points to area workflow [RESOLVED]

2019-07-20 Thread Rich Shepard
On Sat, 20 Jul 2019, Micha Silver wrote: v.to. lines is *not* what you want. That module takes a polygon and converts the boundaries to lines. Micha, I wondered about that. If you want to go straight from the point coordinates to a polygon, you can use the GRASS standard ASCII format and

Re: [GRASS-user] Points to area workflow

2019-07-20 Thread Rich Shepard
On Sat, 20 Jul 2019, Thomas Adams wrote: How are you seeing that points convert to an area? An area encompassing the points?? In which case you probably want v.hull ( https://grass.osgeo.org/grass76/manuals/v.hull.html). One further suggestion, consider changing your variable names for, uh,

Re: [GRASS-user] Points to area workflow

2019-07-20 Thread Micha Silver
On 20/07/2019 19:23, Thomas Adams wrote: Rich, How are you seeing that points convert to an area? An area encompassing the points?? In which case you probably want v.hull

Re: [GRASS-user] Points to area workflow

2019-07-20 Thread Thomas Adams
Rich, How are you seeing that points convert to an area? An area encompassing the points?? In which case you probably want v.hull ( https://grass.osgeo.org/grass76/manuals/v.hull.html). One further suggestion, consider changing your variable names for, uh, readability?? Tom On Sat, Jul 20,

[GRASS-user] Points to area workflow

2019-07-20 Thread Rich Shepard
I don't remember the workflow converting corner points into an area and find no saved example here. When I try the sequence: v.to.lines in=anal_corners out=anal_bnd v.build map=anal_bnd opt=build v.centroids in=anal_bnd out=anal_area grass tells me 'input vector map contains no boundaries'.

Re: [GRASS-user] v.proj: lat or lon limits exceeded [FIXED]

2019-07-20 Thread Rich Shepard
On Sat, 20 Jul 2019, Markus Metz wrote: the latitudes of -123.9x are smaller than -90, exceeding limits. Did you swap easting and northing? Markus M, Sigh. Obviously, yes. And I completely missed seeing this. I knew it was something simple that I overlooked. Thank you very much, Rich

Re: [GRASS-user] v.proj: lat or lon limits exceeded

2019-07-20 Thread Markus Metz
On Fri, Jul 19, 2019 at 11:44 PM Rich Shepard wrote: > > Trying to re-project a vector file from location lon_lat to the project's > location fails: > > Reprojecting primitives ... > WARNING: proj_trans() failed: latitude or longitude exceeded limits > ERROR: Unable to re-project vector map from