Re: [GRASS-user] grass : how to do Isochrone maps?

2014-12-09 Thread Moritz Lennert
On 07/12/14 23:38, image93 wrote: Hello, Thank you for your reply. Sorry i'm newbie with grass 1/ I downloaded grass 7 beta on my windows 7. I installed the v.isochrones from addons. But how to use this new extension ? is it possible to use an graphical interface (gui) or i have to use the

Re: [GRASS-user] randomize the position of a raster map

2014-12-09 Thread Moritz Lennert
On 08/12/14 18:26, Milton Ribeiro wrote: Hi all, I have a landcover maps, and I need to randomize the position of them, keeping all the pixels on the new raster map. IIUC, you actually want to randomize the categories of pixels where categories are land covers and there is a constraint that

Re: [GRASS-user] randomize the position of a raster map

2014-12-09 Thread Milton Ribeiro
Hi Moritz, I like your tips.. I will try this. Thanks! milton 2014-12-09 12:55 GMT-02:00 Moritz Lennert mlenn...@club.worldonline.be: On 08/12/14 18:26, Milton Ribeiro wrote: Hi all, I have a landcover maps, and I need to randomize the position of them, keeping all the pixels on the new

Re: [GRASS-user] grass : how to do Isochrone maps?

2014-12-09 Thread image93
Hello, Thank you very much. The v.isochrones seems to require in input a vector network (roads) with a speed attributes column. I have just checked my openstreetmap roads vector layer. And this column is not fully completed, data are lacking for many routes. How can I do? According to you, before

[GRASS-user] i.segment.hierarchical on windows?

2014-12-09 Thread Helmut Kudrnovsky
hi, anyone used i.segment.hierarchical in winGRASS7? seems not to work here; GUI can't be opened - best regards Helmut -- View this message in context: http://osgeo-org.1560.x6.nabble.com/i-segment-hierarchical-on-windows-tp5177091.html Sent from the Grass - Users mailing list archive at

Re: [GRASS-user] i.segment.hierarchical on windows?

2014-12-09 Thread Vaclav Petras
On Tue, Dec 9, 2014 at 1:52 PM, Helmut Kudrnovsky hel...@web.de wrote: hi, anyone used i.segment.hierarchical in winGRASS7? seems not to work here; GUI can't be opened I'm just looking at the MS Windows build logs. There is the strange issue which was discussed some time ago on grass-dev

[GRASS-user] Conversion from point data to raster in GRASS

2014-12-09 Thread BABITHA REDDY
Hi All, After converting a shape file(point) into raster using GRASS7, it is not displaying the converted raster map. When i query the raster map it is displaying the value as 0, even though there are values. Please help how to solve this problem Thanks

Re: [GRASS-user] Conversion from point data to raster in GRASS

2014-12-09 Thread Nikos Alexandris
On 09.12.2014 21:53, BABITHA REDDY wrote: Hi All, After converting a shape file(point) into raster using GRASS7, it is not displaying the converted raster map. When i query the raster map it is displaying the value as 0, even though there are values. Firstly, check your region settings.

Re: [GRASS-user] Conversion from point data to raster in GRASS

2014-12-09 Thread Thomas Adams
Babitha, How did you do your vector point to raster interpolation; v.surf.bspline; v.surf.idw; v.krige,…? Did you use d.rast to display the raster map; do you have a MASK set; is your GRASS Region set correctly? Knowing your steps in more detail would be helpful… Tom On Tue, Dec 9, 2014 at

[GRASS-user] pygrass : creation of an area in a vector map

2014-12-09 Thread Laurent C.
Hello all, I'm trying to write a new area to a new vector map, without success. If I do the following : new_boundary = Boundary(points=coordinates) new_centroid = Point(point_x,point_y) new_area = Area(boundary = new_boundary, centroid=new_centroid) new_vect_map.write(new_area) I get this

Re: [GRASS-user] randomize the position of a raster map

2014-12-09 Thread Paulo van Breugel
Nice suggestions Moritz. Another alternative to accomplish this is to combine r.surf.random and r.recode (instead of recode, one can also use r.reclass). I haven't tried it, but this might be faster for large maps or with many categories? r.surf.random flags=i, output=LUCrandom min=0 max=1

Re: [GRASS-user] i.segment.hierarchical on windows?

2014-12-09 Thread Helmut Kudrnovsky
What is your error message if any? from the winGRASS-wxcommand line: - Traceback (most recent call last): File C:\OSGeo4W\apps\grass\grass-7.1.svn\gui\wxpython\gui _core\prompt.py, line 263, in OnItemSelected self.cmdDesc = gtask.parse_interface(cmd) File

Re: [GRASS-user] i.segment.hierarchical on windows?

2014-12-09 Thread Helmut Kudrnovsky
And there is also: File c:\osgeo4w\usr\src\grass70_release\dist.i686-pc-mingw32\etc\python\grass\pygrass\raster \buffer.py, line 8, in module FCELL = (np.float, np.float16, np.float32) AttributeError: 'module' object has no attribute 'float16'

Re: [GRASS-user] i.segment.hierarchical on windows?

2014-12-09 Thread Pietro
Hi Helmut, On Tue, Dec 9, 2014 at 10:38 PM, Helmut Kudrnovsky hel...@web.de wrote: C:\OSGeo4W\apps\grass\grass-7.1.svn\etc\python\grass\pygrass\raster\buff er.py, line 8, in module FCELL = (np.float, np.float16, np.float32) AttributeError: 'module' object has no attribute 'float16' Ok,

[GRASS-user] can not locate g.mlist

2014-12-09 Thread Rajat Nayak
Hello, I have installed grass 7 on ubuntu 14.04, 64 bit, from the source code. The grass70 opens without any problems, but I'm unable to find the command '*g.mlist*'. However, g.list opens without any errors. Also, I'm unable to install any of the Add-ons. I think I have missed to configure some