[GRASS-user] Limits on computation

Greetings Is there any defined limits on computation? I mean, for instance I'm creating a mosaic. Is there any limits on size of images or size of data that is known in GRASS? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org

Re: [GRASS-user] Limits on computation

Hi Glynn Thanks Just one question aboht that limit of number of cells: is that limit applicable to CELL or DCELL? Thanks Monica On Mon, May 30, 2011 at 2:17 PM, Glynn Clements gl...@gclements.plus.comwrote: Monica Buescu wrote: Is there any defined limits on computation? I mean

[GRASS-user] Error while exporting

I'm expericing a problem while trying to export a reclasses (r.reclass) raster map: I'm getting this error: Exporting to GDAL data type: Byte Checking GDAl data type and nodata value Selected GDAL datatype does not cover data range. GDAL datatype: Byte, range: 0 - 255 Raster map

[GRASS-user] Very Quick Question about Geometric Correction module (WiNGRASS6.4.0stable)

Greetings Very Quick Question: my students are running Geometric Correction in Windows (6.4.0 stable release from Sep2010). It is running but the interfaces seems to be freezed (at the top of the window it's saying (Not Responding). But it has processed the data. Question 1: can it be a problem

Re: [GRASS-user] Very Quick Question about Geometric Correction module (WiNGRASS6.4.0stable)

, Monica Buescu monicabuescu1...@gmail.com wrote: Greetings Very Quick Question: my students are running Geometric Correction in Windows (6.4.0 stable release from Sep2010). It is running but the interfaces seems to be freezed (at the top of the window it's saying (Not Responding

[GRASS-user] Geometric Correction- Freeze

Greetings Markus (I changed the subject since it's happening in 6.4.1) There is no error. It just freezes. It creates the bands and georrectigfies but the panels, windows are freezed. ___ grass-user mailing list grass-user@lists.osgeo.org

[GRASS-user] Warning- Not enough room in history file for command line (truncated).

Greetings I'm running a function (r.series) and I'm getting this warning at the end: Not enough room in history file for command line (truncated). How can I avoid this? as far as I can see there is no problem but... I would like to avoid this Thanks Monica

[GRASS-user] Adding labels to Classes

Greetings I have a Land Cover map and I want to substitute Land Cover codes by numbers. Besides r.reclass (1 = 1 Agriculture ; 2 = 2 Forest 3 = 3 Water) what other method does exists in GRASS? Thanks ___ grass-user mailing list

[GRASS-user] Retrieve pixel value for a group of images

Greetings I have created a group of 10 images (i.group) and I wanted to know how can I retrieve a pixel value for all images instead of using query raster map tool wherre I can only retrieve a pixel per image? Thanks Monica ___ grass-user mailing list

[GRASS-user] Manual page on how to create/edit/delete Mapsets and Locations

Greetings Where can I find, if available, a webpage or manual page on how to define/create/edit/delete Locations and Mapsets? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] Add a color to a vector

Greetings I have produced in winGRASS 6.4.0 stable a vector (by converting from raster to vector) and I want to add a color. how can I do that inside a Python Script? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org

[GRASS-user] Calling GRASS scripts from GRASS C modules

Greetings I'm building a segmentation and statistical image analysis module (in C) and I want to call a grass script. Is it possible inside a GRASS C module? If so, How can I do that? (or can anyone give me an online example= Thanks Best regards, Monica

[GRASS-user] Question on using r.resamp.stats

Greetings a few messages ago I saw that someone advised to use r.resamp.stats to rescale for a coarser scale. Now I have one question: In mapsetX I have a raster (named rasterA) with Spatial resolution 10 and 10. Now in mapset Y my region spatial resolution is 50 and 50. Question: Having mapset

[GRASS-user] Using temp files in Grass Script

Greetings I'm doing a GRASS script and I have some intermediate processes (e.gr.mapcalc) where I produce raster maps that are not the final product (a kind of an intermediate product) and that i delete at the end. Since I have to produce a lot my question is: Shall I use tempfile function to

Re: [GRASS-user] calculating average value over a base map

Hi Dmistrij I think it was worked. I just need to figure out something with r.statistics. Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] calculating average value over a base map

christian.schwar...@uni-jena.de wrote: Monica, try to use r.statistics with the average function/method. Pass you maps through the cover= and base= parameters... Christian. *From:* Monica Buescu monicabuescu1...@gmail.com *Sent:* Monday, February 28, 2011 4:27 PM *To:* GRASS user list grass-user

Re: [GRASS-user] calculating average value over a base map

... Regards, Christian. *From:* Monica Buescu monicabuescu1...@gmail.com *Sent:* Monday, February 28, 2011 5:16 PM *To:* Christian Schwartze christian.schwar...@uni-jena.de *Cc:* GRASS user list grass-user@lists.osgeo.org *Subject:* Re: [GRASS-user] calculating average value over a base map

[GRASS-user] Error while using variance in r.series function

Greetings I'm using r.series with variance option and I'm getting values that are not according to var function in MATLAB or var function in EXCEL. For average and count the result is exacly the expected but for variance (e.g. bellow is for a pixel [ 73 116 72 81 75 136 101 112 94 67 ] I

[GRASS-user] renaming a raster map in a Python Script

Greetings I have a GRASS Python Script where I create a raster map and I want to rename it. How can I rename a raster map in a GRASS Python Script? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org

Re: [GRASS-user] Check if a mapset exists- in Python Script

:38 AM, Glynn Clements gl...@gclements.plus.comwrote: Monica Buescu wrote: How can I check if a certain mapset exists in my active location in a Python Script? grass.script.mapsets(False) returns a list of mapsets in the current location. -- Glynn Clements gl

[GRASS-user] Check if a mapset exists- in Python Script

Greetings How can I check if a certain mapset exists in my active location in a Python Script? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] Produce KML/KMZ files in GRASS

Greetings I would like to know if it's possible to produce KML/KMZ files from a raster file in GRASS? If not, what tool do you advise? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org

[GRASS-user] Calculating slope for raster maps on pixel-based methodology

Greetings I have a bunch of raster maps (5 as a matter of fact) and need to calculate the slope for each pixel. I mean, I need to pick-up all 5 values for each pixel and calculate Slope for that pixel. Now, What I want is to do this for all pixels and obtain a map that represents the slope for

[GRASS-user] Creating patches in a raster file

Greetings (It seems that I'm mail bombing to this list but I have a few questions about GRASS usage). I have a classification map and I want to create segments/patches aggregated by its classigfication and assign an patch ID. Let me demonstrate: INPUT: 1 1 2 2 4 4 5 5 5 1 2 2 2 4 5 5 5 1 3 3 2 2

[GRASS-user] Not possible to display vector data

Greetings I have a vector map with the following characteristics (v.info) v.info test01_LU ++ | Layer: test01_LU | | Mapset: Regional | | Location:

[GRASS-user] help, manual and instructions on how to use legend

Greetings I'm trying to find an help page/wiki on use of legend but i'm not able to find anything Can anyone indicate me one? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] Error when importing data in Windows with Python Script

WinGRASS nightly version from last week and It's still not available. Is this expected? Thanks On Mon, Nov 8, 2010 at 11:04 AM, Martin Landa landa.mar...@gmail.comwrote: Hi, 2010/11/8 Monica Buescu monicabuescu1...@gmail.com: I have just downloaded and installed WinGRASS r44203 from here (http

Re: [GRASS-user] Error when importing data in Windows with Python Script

Hello Martin I have just downloaded and installed WinGRASS r44203 from here ( http://josef.fsv.cvut.cz/wingrass/grass64/) and I tried to run a Python Script that uses a file path in Windows and still, it's not using the Windows \ file-paths bars. Can anyone confirm me that this is still not

Re: [GRASS-user] Error when importing data in Windows with Python Script

Hello Martin I'm running my Python script from its Modules GUI. I insert the path, by-hand... On Mon, Nov 8, 2010 at 11:04 AM, Martin Landa landa.mar...@gmail.comwrote: Hi, 2010/11/8 Monica Buescu monicabuescu1...@gmail.com: I have just downloaded and installed WinGRASS r44203 from here

Re: [GRASS-user] Use of r.mode

from this raster. Any suggestion? Shall I create a copy of this file? and is this normal? Thanks Monica On Thu, Oct 21, 2010 at 11:32 AM, Monica Buescu monicabuescu1...@gmail.comwrote: Well, that's not good. Yes, maybe a problem with disk space or memory? l'll have to leave to someone more

Re: [GRASS-user] using r.mode- Can different resolutions be a problem?

Thanks Markus. By the way, just one last question: If I have pixel values that I don't want to apply r.mode (for instance 0), can I transform them to null (using r.mapcalc) and then apply r.mode? Isn't there any issue regarding null values? Thanks On Sat, Oct 30, 2010 at 5:34 PM, Markus Neteler

[GRASS-user] using r.mode- Can different resolutions be a problem?

Greetings A couple of days ago I sent a few ermails about r.mode. Now I have one questions: is there any issue associated with the fact that, ocasionally, base and cover map may have different resolution? Is this a problem? Thanks Monica ___ grass-user

[GRASS-user] Compiling in Windows OSGEO4W- Error with gcc

Greetings I tried to compile a module with this command make -C i.segment MODULE_TOPDIR=/C/OSGeo4W/usr/src/grass-6.4.svn_src_snapshot_2010_09_04 And I got this: make: Entering directory `/C/osgeo4w/usr/src/i.segment' make OBJ.i686-pc-mingw32 make[1]: Entering directory

Re: [GRASS-user] Use of r.mode

Well, that's not good. Yes, maybe a problem with disk space or memory? l'll have to leave to someone more knowledgeable to answer here. Thanks Micha Probaby in this case is Memory space. Because for Smaller images I don't get any problem and bigger images I'm getting this problem. As anyone

Re: [GRASS-user] Use of r.mode

Hello About 20,000,000 cells. That should be OK. Do you know how many different values are actually in the data? Yes... In this case is 6608. In other examples it can be 3000 or 2000. Why? I'd try two things here. First can you change to a smaller region and rerun r.mode and try to display

[GRASS-user] Use of r.mode

Greetings This new topic is related with I need to calculate mode for a base map that is composed by float values. r.mode base=b...@permanent cover=1107...@permanent output=saida And I get: ERROR: reading r.stats output ERROR: No rules specified This means that I'm not being able to apply

Re: [GRASS-user] Use of r.mode

to display it freezes... Even If I just try r.info output1 it also freezes. Any thoughts aboutt this? (Thanks Micha) On Tue, Oct 19, 2010 at 2:14 PM, Micha Silver mi...@arava.co.il wrote: Monica Buescu wrote: Greetings This new topic is related with I need to calculate mode for a base map

[GRASS-user] Calculating mode value for each polygon

Greetings I have an image that is divided in several (300) polygons and, using a data_map raster, I want to calculate the mode value from this image for each polygon. Is it possible? can anyone give me a tip on this? Thanks Monica ___ grass-user

Re: [GRASS-user] Calculating mode value for each polygon

? (thanks Micha for your suggestion) On Mon, Oct 18, 2010 at 10:19 AM, Micha Silver mi...@arava.co.il wrote: On 18/10/2010 10:11, Monica Buescu wrote: Greetings I have an image that is divided in several (300) polygons and, using a data_map raster, I want to calculate the mode value from

Re: [GRASS-user] Calculating mode value for each polygon

Uhm That is a pittty. Is anyone planning on developing this? On Mon, Oct 18, 2010 at 12:33 PM, Daniel Victoria daniel.victo...@gmail.com wrote: This should be done by v.rast.stats but, from the manual I don't think it includes mode... On Mon, Oct 18, 2010 at 8:32 AM, Monica Buescu

Re: [GRASS-user] Calculating mode value for each polygon

, Oct 18, 2010 at 12:33 PM, Daniel Victoria daniel.victo...@gmail.com wrote: This should be done by v.rast.stats but, from the manual I don't think it includes mode... On Mon, Oct 18, 2010 at 8:32 AM, Monica Buescu monicabuescu1...@gmail.com wrote: I don't think so.. What I want is to calculate

[GRASS-user] Checking if a raster is in current MAPSET

Greetings I have a Py script where I do some processing. But, I want to limit it to the files that are available in my current mapset. How can I do this? I mean, I just to evaluate if the input is in the current/active MAPSET? Thanks Best regards Monica

Re: [GRASS-user] Checking if a raster is in current MAPSET

...@gclements.plus.comwrote: Monica Buescu wrote: I have a Py script where I do some processing. But, I want to limit it to the files that are available in my current mapset. How can I do this? I mean, I just to evaluate if the input is in the current/active MAPSET? grass.script.find_file

[GRASS-user] Merging with Overlap

Hello, I've been using GRASS spatial merging tool (r.patch) with success but now I have one small problem: My tiles have a small overlap area. Is there any module to merge tiles but with methodologies to overlap these tiles (mean, maximum, etc)? Thanks Monica

Re: [GRASS-user] Re: Stack Dumpfile in WinGRASS installation with OSGEO4w

, Markus Neteler nete...@osgeo.org wrote: Monica, I searched in the internet for such messages and came across this http://readlist.com/lists/lists.sourceforge.net/mingw-msys/0/341.html Perhaps giving you some idea? Markus On Mon, Jul 26, 2010 at 6:26 PM, Monica Buescu monicabuescu1

[GRASS-user] Re: Stack Dumpfile in WinGRASS installation with OSGEO4w

Thanks Helmut I will give a look on those links I have just tried to compile latest week snapshot and I got, besides my usual stackdumps, a lot of errors while creating libs and dbs: can this be associated with stackdumps? Because with earlier versions I ge tthe stackdumps but not errors in

[GRASS-user] Re: Stack Dumpfile in WinGRASS installation with OSGEO4w

are not being created. On Fri, Jul 23, 2010 at 11:53 AM, Monica Buescu monicabuescu1...@gmail.comwrote: Hi Since I saw today a message from Helmut, stating that 19-07 Snapshot is to be updated, I decided to install an earlier version (from June). While I was installing GRASS i got a lot

[GRASS-user] Stack Dumpfile in WinGRASS installation with OSGEO4w

Hi Since I saw today a message from Helmut, stating that 19-07 Snapshot is to be updated, I decided to install an earlier version (from June). While I was installing GRASS i got a lot of : 0 [main] sh 3880 open_stackdumpfile: Dumping stack trace to sh.exe.stackdump 0 [main] sh 960

Re: [GRASS-user] How to convert multi-bands clusters in a vectorial

Hi there I have used an external tool to produce clusters from Landsat images. For each input bands, I obtain clusters with a desginated value (mean of the values in that cluster). So, if I use 4 bands, I obtained 4 outputs with clusters. in each image I obtain the same clusters but

[GRASS-user] How to convert multi-bands clusters in a vectorial

Greetings (This may sound as a complicated question but it's not :) ) I have used an external tool to produce clusters from Landsat images. For each input bands, I obtain clusters with a desginated value (mean of the values in that cluster). So, if I use 4 bands, I obtained 4 outputs with

[GRASS-user] Merge images

Greetings I have 2 landsat scenes acquired one after the other and I wanted to merge them. How can I do that? Thanks Monica ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

[GRASS-user] managing mapsets in Python Scripts

Greetings I'm doing to image processing and I have 2 questions regarding mapset management 1- How can I define an image destination mapset? I mean should I first define mapset (g.mapset) and run my functions or should I define in output the im...@target_mapset? 2- How can I retrieve the current

[GRASS-user] Creating a winGRASS distribution

Greetings My name is Monica and I'm a grad students of Environmental Systems analysis. To a final project I have been developing all my work on GRASS (6.4.0) (Linux) which includes not only using GRASS' modules but adding a few ones (simples). My idea was, at the end of the project, give an Linux