[GRASS-user] instant anaglyph

2009-11-24 Thread Michael Barton
Markus, Making an anaglyph in GRASS turned out to be trivially easy. My RA, Isaac came up with the simplest idea. Just put one image of the stereo pairs into the red channel of r.composite and the other image into the blue channel and the green channel. If you don't need to create a singl

Re: [GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Glynn Clements
Rich Shepard wrote: > > True. I completely forgot about this. With a new location/mapset I can > > now use v.proj to move it over. > >I'm still missing something. Defined a new location (streetsLCC) and > mapset (rbs). Ran the following command successfully: > > GRASS 6.4.0svn (streetsLCC)

RE: [GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Pablo Carreira
>The wxPython GUI has a bug: when UTM is specified as the projection, we > cannot change the zone from the default 30... Today a have seen this bug in wx, it looks like the zone box is hidden. You may create a custom proj.4 parameters to bypass this problem Look at this site: http://spatialr

RE: [GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Rich Shepard
On Tue, 24 Nov 2009, Pablo Carreira wrote: Assumptions: -Very well defined LOCATION parameters is the foundation to perfectly combine maps of different sources. -The experience tells me that some data are even in the correct reference system, but sometimes the "info" that comes with it sometim

RE: [GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Pablo Carreira
Hi Rich, I have a general theory that may help you: Assumptions: -Very well defined LOCATION parameters is the foundation to perfectly combine maps of different sources. -The experience tells me that some data are even in the correct reference system, but sometimes the "info" that comes with i

Re: [GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Rich Shepard
On Tue, 24 Nov 2009, Rich Shepard wrote: True. I completely forgot about this. With a new location/mapset I can now use v.proj to move it over. I'm still missing something. Defined a new location (streetsLCC) and mapset (rbs). Ran the following command successfully: GRASS 6.4.0svn (streets

Re: [GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Rich Shepard
On Tue, 24 Nov 2009, Martin Landa wrote: you cannot define a different spatial reference systems (SRS) for mapsets in one location. Data in one location need to be in the same SRS. This is fundamental feature of the GRASS database - "A LOCATION is defined by its coordinate system, map projection

[GRASS-user] help shor test path

2009-11-24 Thread ricardo rodriguez
hello, anyone know where I can use the command shortestpath so you can get all distances from the points of interest of a network and print them in a matrix, just as the command v.distance. thanks for any response Ricardo Estudiante de ultimo semestre de ING. TOPOGRAFICA _

Re: [GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Martin Landa
Hi, 2009/11/24 Rich Shepard : >  From the US Census TIGER files I imported the 'edges' (streets) using > v.in.ogr and using the projection information in the *.prj file. This worked > well, except that 'g.region -p' shows lat/lon geographic coordinates: > > GRASS 6.4.0svn (streets):/usr4/grassbase

[GRASS-user] Reprojecting Vector Map

2009-11-24 Thread Rich Shepard
From the US Census TIGER files I imported the 'edges' (streets) using v.in.ogr and using the projection information in the *.prj file. This worked well, except that 'g.region -p' shows lat/lon geographic coordinates: GRASS 6.4.0svn (streets):/usr4/grassbase > g.region -p projection: 3 (Latitude

Re: [GRASS-user] g.region Options Yield Different Values -- RESOLVED

2009-11-24 Thread Rich Shepard
On Tue, 24 Nov 2009, Rich Shepard wrote: If I correctly understand what you wrote above, I use the projection information when importing the data, but leave the bounds undefined. Once the import is completed I can then run 'g.region rast=elevation10' to set the bounds in appropriate units. T

Re: [GRASS-user] g.region Options Yield Different Values

2009-11-24 Thread Rich Shepard
On Sun, 22 Nov 2009, Glynn Clements wrote: In particular, if you have *raster* data in an LCC projection, you need to know its bounds in LCC, otherwise you don't really have any data, just an array of numbers. I want to re-do the layers so they're all correct. Starting with the DEM, here's t

Re: [GRASS-user] Re: anaglyph for GRASS?

2009-11-24 Thread William Kyngesburye
I did something like this recently. I didn't know about the wiki page, but it ended up similar to that process: take two snapshots in NVIZ, then merge them together to produce the anaglyph. For the anaglyph, on the Mac there is a nice program called Red Green to do this. It can do all the var

[GRASS-user] Re: anaglyph for GRASS?

2009-11-24 Thread Michael Barton
Hi Markus, Thanks much. I saw that. What we are looking for are some guidelines or script to create anaglyphs within GRASS. We want to use the 3D perspective of an anaglyph to map stream terraces. This is commonly done in geomorphology using paper stereo pairs and glasses. With an anaglyph

Re: [GRASS-user] g.region Options Yield Different Values

2009-11-24 Thread Rich Shepard
On Tue, 24 Nov 2009, Glynn Clements wrote: Create the location anyhow and set the region from a map once you've imported one. If for some reason you need suitable bounds before you've imported any maps you can use use "m.proj -i ..." to convert lat-lon coordinates to projected coordinates (but

Re: [GRASS-user] does the grass support windows 7

2009-11-24 Thread Paolo Cavallini
Markus Neteler ha scritto: > We have installed OSGeo4W-QGIS-GRASS here on XP today. > It delivered a version from May 2009 which is about 2000 SVN > revisions ago. Is there hope to get a fresh recompile from the > SVN 6.4 release branch? Or did we miss anything? AFAIK, you're right - any voluntee

Re: [GRASS-user] does the grass support windows 7

2009-11-24 Thread Markus Neteler
On Tue, Nov 24, 2009 at 11:03 AM, Paolo Cavallini wrote: > Markus Neteler ha scritto: >> On Tue, Nov 24, 2009 at 8:10 AM, Paolo Cavallini >> wrote: >>> maven apache ha scritto: does the grass support windows 7 system? >>> We are finding that 7 is more or less the same as vista (marketing...

Re: [GRASS-user] does the grass support windows 7

2009-11-24 Thread Paolo Cavallini
Markus Neteler ha scritto: > On Tue, Nov 24, 2009 at 8:10 AM, Paolo Cavallini > wrote: >> maven apache ha scritto: >>> does the grass support windows 7 system? >> We are finding that 7 is more or less the same as vista (marketing... ;) ): >> GRASS >> used from QGIS plugin crashes at about the sa

[GRASS-user] help

2009-11-24 Thread Bulent Arikan
Hi, I have been using r.param.scale and inverting DEM method for identifying peaks. I am specifically interested in finding the high spots on a landscape; not just the highest single cell. It has been suggested that r.prominence may be of help. I realise that this comes in a file that needs to be c

Re: [GRASS-user] does the grass support windows 7

2009-11-24 Thread Markus Neteler
On Tue, Nov 24, 2009 at 8:10 AM, Paolo Cavallini wrote: > maven apache ha scritto: >> does the grass support windows 7 system? > > We are finding that 7 is more or less the same as vista (marketing... ;) ): > GRASS > used from QGIS plugin crashes at about the same commands as in vista. Did you c