[GRASS-user] How to calculate SUM of an image
Greetings I have a raster map and I wan to calculate its sum. How can I do this in GRASS? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Re: GRASS script to export raster
Hi Glynn, Martin, Hamish and rest of GRASS mailing list
Thanks for your feedback. Unfortunely, I was analyzing my problem in the
wrong way...
WHat I need is to:
- Export raster values in an ASCII file written from left to right and
bottom to top and each line only includes Raster value (not X neither Y).
Is this possible in GRASS with a Python Script?
Also I will need to import raster values written in ASCII file written from
left to right and bottom to top where each line is a single raster value
without X and Y.
Is there any easy-to-implement solution?
Thanks
Best regards and sorry for my previous mistake,
Kim
2011/3/9 Glynn Clements gl...@gclements.plus.com
Martin Landa wrote:
so just flipping all the rows in the file you can get now?
don't know how to do that in python, but if unix shell powertools are
available:
r.out.ascii | tac
print os.linesep.join(reversed(grass.read_command('r.out.ascii',
FWIW, both of these are sub-optimal.
The Python approach reads everything into memory then generates a
reversed copy, so you need enough memory to hold two copies of the
output from r.out.ascii.
When given a file, tac reads the input file backwards a block at a
time, so it only needs enough memory to hold a complete line, rounded
up to a whole number of blocks.
However, it can't do this when reading from a pipe; it has to store
everything in memory.
If you want to reverse a large file without storing everything in
memory, the simplest solution is e.g.:
r.out.ascii ... tmp.txt
tac tmp.txt reversed.txt
rm tmp.txt
If this was likely to be a common operation, r.out.ascii could easily
be modified to flip the row number passed to Rast_get_row(). However,
while that will be optimal for native GRASS rasters, it may be
sub-optimal (or even fail) for linked (r.external) rasters; many
raster formats have to be read top-to-bottom (I don't know how GDAL
handles out-of-order reads for such formats).
--
Glynn Clements gl...@gclements.plus.com
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[GRASS-user] GRASS script to export raster
Greetings I want to build a GRASS Python script to export raster data but instead of XYZ (from top-left corner to lower-right corner) I want the opposite. Is there a way to do this as a python scriipt? or I can only do this as C-module? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: GRASS script to export raster
Uhm I guess I wasn't clear :) I want to write a XYZ starting from low left corner goes to the end of row then goes to above row and so on...I mean to go from low row to top row. Thanks 2011/3/8 Kim Besson kimbesson1...@gmail.com Greetings I want to build a GRASS Python script to export raster data but instead of XYZ (from top-left corner to lower-right corner) I want the opposite. Is there a way to do this as a python scriipt? or I can only do this as C-module? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] calculate raster statistics for vector polygons
Greetings I have a vector file with polygons and I want to obtain a raster map with statistics of an input raster for each polygon. What can I use to do this? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Resampling- Upscalling a raster
Greetings I would like to know which methods are available to upscale (or resample) a raster map from 50 m to 100 m? And How shall I manage the g.region definitons? Before i run a resampling method shall i define g.region Spatial resolution as 100 or only after? Thhanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Calculate averagfe of raster maps without mapcalc
Greetings I need to calculate the average of a set of raster images. How can I calculate it without using mapcalc? THanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Error while running i.gensig- Signature 1 not positive definite
Hi My group images ranges between 0-255, my training_areas are more than OK (I guess). WHy am I getting Signature 1 not positive definite? What shall I do to avoid this error? Thanks Kim 2011/2/14 Kim Besson kimbesson1...@gmail.com Greetings I have a training area map and a few landsaty images, and everytime i try to generate a signature I get this error/warning: Signature 1 not positive definite What might be causing this? can this be a problem of my dataset? (must it range in some interval of values or what is wrong with it)? How can I avoid this? And what does it mean Not positive definite? Thanks Kim Besson ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Error while running i.gensig- Signature 1 not positive definite
Greetings I have a training area map and a few landsaty images, and everytime i try to generate a signature I get this error/warning: Signature 1 not positive definite What might be causing this? can this be a problem of my dataset? (must it range in some interval of values or what is wrong with it)? How can I avoid this? And what does it mean Not positive definite? Thanks Kim Besson ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Help for Wx-Georrectifier
Hi Markus Thanks. I do have a weekly snapshot 6.4.1 but I don't have that yet. is it possible to integrate that part in a earlier version of 6.4.1? Thanks Kim By the way, How can I check which release am I using and, what changes have occured since my release? 2010/11/2 Markus Metz markus.metz.gisw...@googlemail.com Kim Besson wrote: Greetings I'm starting to use Wx Georrectifier (Geometric Correction) and, in a couple of messages from a few weeks I saw that some help for Georrectifer was added to GRASS but I didn't find anything. could anyone point me out? Im using WinGRASS 6.4.0 (stable). The help is part of the new Georectifier in wxGUI (File - Manage Ground Control Points) which is available only in 6.4.1 and above. The latest 6.4 Windows installer is available here [1] Markus M [1] http://josef.fsv.cvut.cz/wingrass/grass64/ ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Help for Wx-Georrectifier
Greetings I'm starting to use Wx Georrectifier (Geometric Correction) and, in a couple of messages from a few weeks I saw that some help for Georrectifer was added to GRASS but I didn't find anything. could anyone point me out? Im using WinGRASS 6.4.0 (stable). Thaks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Catch errors from grass.mapcalc
Greetings I have python script where I try to catch, as much as possible all errors, in order to avoid abrupt ERRORS from the script. for instance I do this for grass.run_command: p=grass.run_command(i.group, group=group_name, subgroup=subgroup, input= input) if p!=0: grass.fatal(_(ERROR MESSAGE)) but I'm not being able to do this for grass.mapcalc. has anyone any suggestion or tip on how to do this for grass.mapcalc? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Check if a raster map has any valid pixel
Thank Glynn. But how can I retrieve min and max using a Python Script? 2010/10/25 Glynn Clements gl...@gclements.plus.com Kim Besson wrote: I have a python script where I need to check if an input raster map has any valid pixel (at least one pixel that is not null). How can I check this (easy and quick way?) in order to be integrated in my Script? Check the range: $ r.mapcalc --o 'foo = null()' $ r.info -r foo min=NULL max=NULL The range can only have min=max=NULL if there are no non-null cells. -- Glynn Clements gl...@gclements.plus.com ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Check if a raster map has any valid pixel
Greetings I have a python script where I need to check if an input raster map has any valid pixel (at least one pixel that is not null). How can I check this (easy and quick way?) in order to be integrated in my Script? Thjanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Type of data to be used in i.maxlik
Hi Markus The input can be double but will be read as integer (CELL) since the function G_open_cell_old() is used [1]. ** *This means what? That pixels with values 255 are all the same? or pixels like 1,034 and 2,043 are rounded?* ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Type of data to be used in i.maxlik
Hi Markus The input can be double but will be read as integer (CELL) since the function G_open_cell_old() is used [1]. This means what? That pixels with values 255 are all the same? or pixels like 1,034 and 2,043 are rounded? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Type of data to be used in i.maxlik
Hello I have sent this message but no one answered me. Can anyone help me on this? Thanks Kim 2010/10/15 Kim Besson kimbesson1...@gmail.com Greetings Before I used i.maxlik I decided to give a look at the code. And I have one question: - the input data, I mean the data inside the group, must it be CELL (integers that range 0-255) or can it be DOUBLE (double precision that range whatever)? I believe that the training_area MUST be integers (for the obvious reason) Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Type of data to be used in i.maxlik
Greetings Before I used i.maxlik I decided to give a look at the code. And I have one question: - the input data, I mean the data inside the group, must it be CELL (integers that range 0-255) or can it be DOUBLE (double precision that range whatever)? I believe that the training_area MUST be integers (for the obvious reason) Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Question regarding Wiki: Compiling GRASS on MS-Windows
Glynn mentioned some possible error associated with gcc version. Any comments about this? As far as I can see Thy had the same problem last week and antonio is also having this problem. I talked with Antonio and he told me that he never had this problem before. Only now... Which means that this has something to do with a new improvement/update of osgeo4w or similar 2010/10/6 Helmut Kudrnovsky hel...@web.de Greetings I'm using the version that is diretly linked in CompileOnWindows WIKI because I'm not being able to identify and corretcly select newer versions for msysCORE-1.0.11-bin, bin-utils, gcc-core, gcc-g++, etc. Can this be a limitation? AFAICT I'm using the linked version from the WIKI in my WinGrass-build-environment. IMHO there should be no limitation. best regards Helmut ___ Neu: WEB.DE De-Mail - Einfach wie E-Mail, sicher wie ein Brief! Jetzt De-Mail-Adresse reservieren: https://produkte.web.de/go/demail02 ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Question regarding Wiki: Compiling GRASS on MS-Windows
Greetings I'm using the version that is diretly linked in CompileOnWindows WIKI because I'm not being able to identify and corretcly select newer versions for msysCORE-1.0.11-bin, bin-utils, gcc-core, gcc-g++, etc. Can this be a limitation? In my previous installations I always used the linked ones without any problems... But now I'm getting errors while compilation Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Region and not-processed data
Hi Ok about this I just need to have an idea (or a link that can explain me this): 1- When I import a raster map (r.in.gdal) will it import all the raster or only the portion that fits in the current defined region? 2- If I define as a region a wider area than the image, will it process where the image is not available? Thanks Kim 2010/9/27 stephen sefick ssef...@gmail.com Where you don't have the image, if I understand you correctly, would be NULL values? In that case you will have to default to someone more experienced, but I suspect that it is run on the entire map, but NULL means no data so no process. Just a wag. hth Stephen On Mon, Sep 27, 2010 at 8:58 AM, Kim Besson kimbesson1...@gmail.com wrote: Hi stephen and rest of GRASS users That was not my quiestion. My question is: if a have a an uimage inside a regions, will it process and run for all the region or only for where I have the image(it's not importing only image-processing). ? Thanks Kim 2010/9/27 stephen sefick ssef...@gmail.com I get a little confused with the region raster processing stuff also. But, this is what I do, and it seems to work. Anything that is brought in from the outside (r.in.*) will import the entire map. Anything that is done withing GRASS will respect the region. So, just make sure to set the region before each calculation and you should be OK. On Mon, Sep 27, 2010 at 8:52 AM, Kim Besson kimbesson1...@gmail.com wrote: Greetings I have a very dumb question regarding region definition/processing: - I have defined a an area (example; 30N 20S -10W -5W). I have a raster image with (30N 15N -7W -5) I mean, it only cover a part of the region. If I run GRASS image-processing algorithms and processors does it run in all image or only where I have a raster image? Thanks and sorry for tyhis such a dumb question Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user -- Stephen Sefick | Auburn University | | Department of Biological Sciences | | 331 Funchess Hall | | Auburn, Alabama | | 36849| |___| | sas0...@auburn.edu | | http://www.auburn.edu/~sas0025 | |___| Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals. -K. Mullis A big computer, a complex algorithm and a long time does not equal science. -Robert Gentleman -- Stephen Sefick | Auburn University | | Department of Biological Sciences | | 331 Funchess Hall | | Auburn, Alabama | | 36849| |___| | sas0...@auburn.edu | | http://www.auburn.edu/~sas0025 | |___| Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals. -K. Mullis A big computer, a complex algorithm and a long time does not equal science. -Robert Gentleman ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Region and not-processed data
Greetings I have a very dumb question regarding region definition/processing: - I have defined a an area (example; 30N 20S -10W -5W). I have a raster image with (30N 15N -7W -5) I mean, it only cover a part of the region. If I run GRASS image-processing algorithms and processors does it run in all image or only where I have a raster image? Thanks and sorry for tyhis such a dumb question Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Region and not-processed data
Hi stephen and rest of GRASS users That was not my quiestion. My question is: if a have a an uimage inside a regions, will it process and run for all the region or only for where I have the image(it's not importing only image-processing). ? Thanks Kim 2010/9/27 stephen sefick ssef...@gmail.com I get a little confused with the region raster processing stuff also. But, this is what I do, and it seems to work. Anything that is brought in from the outside (r.in.*) will import the entire map. Anything that is done withing GRASS will respect the region. So, just make sure to set the region before each calculation and you should be OK. On Mon, Sep 27, 2010 at 8:52 AM, Kim Besson kimbesson1...@gmail.com wrote: Greetings I have a very dumb question regarding region definition/processing: - I have defined a an area (example; 30N 20S -10W -5W). I have a raster image with (30N 15N -7W -5) I mean, it only cover a part of the region. If I run GRASS image-processing algorithms and processors does it run in all image or only where I have a raster image? Thanks and sorry for tyhis such a dumb question Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user -- Stephen Sefick | Auburn University | | Department of Biological Sciences | | 331 Funchess Hall | | Auburn, Alabama | | 36849| |___| | sas0...@auburn.edu | | http://www.auburn.edu/~sas0025 | |___| Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals. -K. Mullis A big computer, a complex algorithm and a long time does not equal science. -Robert Gentleman ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Question regarding grass.mapcalc
Greetings I'm doing a Python script to calibrate a raster image. Since I need to do 3 different calculations I'm using a tempfile (tempL) This is the code: tempL = grass.read_command(g.tempfile, pid = 1) grass.mapcalc($L=$lmin+ (($lmax-$lmin)/($QCALmax-$QCALmin))* ($raster_file-$QCALmin), L=tempL, lmin=lmin, lmax=lmax, QCALmax=QCALmax, QCALmin=QCALmin, raster_file=raster_file) Where tempL is a temporary, (lmin,lmax) are floats, QCALmax and QCALmin are int and raster_file is a raster map used as input. And I get this: syntax error, unexpected '/', expecting NAME or STRING Parse error ERROR: An error occurred while running r.mapcalc What is happening? I believe it has something to do with tempL. Maybe I'm not doing this right. Can anyone help me on this? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Customization of WxGUI Georrectification
Hi there I'm a GRASS user and I've been using WxGUI Georrectification tool (that you have developed/updated). Since we are using it for teaching purpose a few students suggested to change the panel titles in order to identrify the steps (for instance 1st panel (LocationPage) title would be: Setup for geometric Correction Step1 of 3 2nd panel (grouppage) title would be: Setup for georectification Step2 of 3 3rd panel (mappage) title would be: Setup for geometric Correction Step3 of 3 I saw that this is defining the panel titles: self.wizard = wiz.Wizard(parent=parent, id=wx.ID_ANY, title=_(Setup for georectification)) I tried to create new wizards self.wizard2 = wiz.Wizard(parent=parent, id=wx.ID_ANY, title=_(Setup for georectification Step 2of 3)) and then: self.grouppage = GroupPage(self.wizard2, self) but it didn't work. My question is: Is this possible to do? If so, can you give me a tip on that? Thanks Best regards, Kim Besson ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Error while creating vectorial file in WinGRASS
Hi there
Regarding Hamish suggestion
You need to run db.connect to select a database backend to use
first. (There is no VAR file in the mapset yet)
The thing is: I have been using an WinGRASS6.4 binary version where I didn't
need to do anything else. Just create Vector by doing this. So, my question
is, why was this disabled? Or is it some error that only occurs in this
release?
About
hopefully fixed ready for testing in 6.5svn r42988 (v.edit).
Will it be available for 6.4 in Windows?
Thanks
Kim
2010/8/4 Markus Metz markus.metz.gisw...@googlemail.com
Hamish wrote:
Hamish wrote:
You need to run db.connect to select a database backend to
use first. (There is no VAR file in the mapset yet)
hopefully fixed ready for testing in 6.5svn r42988 (v.edit).
devs:
maybe do this for 'v.in.ascii -e' and 'v.digit -n' too?
or move this into Vect_open_new() ?
Not to Vect_open_new(), a GRASS vector does not need to have a DB
connection, this is optional.
Markus M
... but I'm not totally
convinced that's the right place for it either; the mapset may
come from an earlier version of GRASS. perhaps db.execute
instead of exiting with an error.
#include grass/dbmi.h
...
if (! db_get_default_driver_name() ) {
G_message(_(Creating new DB connection based on default mapset
settings...));
db_set_default_connection();
}
see bug #7 http://trac.osgeo.org/grass/ticket/7
Hamish
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[GRASS-user] Error while creating vectorial file in WinGRASS
I have installed WinGRASS-6.4.SVN-r42868-1-Setup.exe in my WinXP machine and, when I select Vector/Develop Vector Map/Create new vector map, I place output name and check Create Attibute table I get an error windows stating: - Error in command execution db.execute Execution failed: 'db.execute --q' Details: Error: Unable to start driver (null) And the following is printed in Command Output: Traceback (most recent call last): File C:/GRASS6/etc/wxpython/wxgui.py, line 546, in OnNewVector cmdDef=(['v.edit', 'tool=create'], map)) File C:\GRASS6\etc\wxpython\gui_modules\gdialogs.py, line 192, in CreateNewVector stdin=sql) File C:\GRASS6\etc\wxpython\gui_modules\gcmd.py, line 369, in __init__ _(Error: ) + self.GetError())) gui_modules.gcmd . CmdError Traceback (most recent call last): File C:/GRASS6/etc/wxpython/wxgui.py, line 546, in OnNewVector cmdDef=(['v.edit', 'tool=create'], map)) File C:\GRASS6\etc\wxpython\gui_modules\gdialogs.py, line 192, in CreateNewVector stdin=sql) File C:\GRASS6\etc\wxpython\gui_modules\gcmd.py, line 369, in __init__ _(Error: ) + self.GetError())) gui_modules.gcmd . CmdError I believe this was not expected but, what might be wrong? Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Using Vector Digitizer in Windows- TclTk
Greetings In the past I have submitted a few questions regarding vector digitizer in Windows (using tcltk) but now I have a few new questions, more focused on customization. 1- Regarding Insert new Record into table item: If I want to edit an existing boundary, I have to uncheck this? 2- I have developed a kind of a GRASS applicable version for classification to be used in my classes but I'm getting a lot of usability problems that I can solve by customization of tcltk vector digitalization please if anyone can help me, can answer the following (if not, who probably can help me?): a- How can I define a pre-defined layer number (always 1) and eliminate Layer ID check box? b- How can I eliminate the mode combobox and predefined next not in use? c- In Form, that is displayed after inserting a new boundary, how can I eliminate data encoding and predefine an option? d- (this is the complicated): My students are doing a classification procedure in which, for each landcover classe they have to define training areas. Right now they are doing:1) Open v.digit, insert filename and flag -n for Class1(forest); 2) Tcltk vector digitizer usage; 3) save and close vector digitizer 4) open v.digit insert filename and flag -n for class2 (ocean) ( ... ) So this is a heavy procedure for lazy students :) My question is: can I implement an circular process in which: 1) I open TclTkvector digitizer that asks for Class1; 2) Digizier boundaries bla bla bla 3) Click Next and TclTk's Vector Digitizer will ask for Classe2 (...) and so on. Thanks for your help in such an heavy questions Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Define Global Variables and use them in a Python script
Hello Glynn As soon as I arrive to the office I will give it a try. Thought that I could have global variables such as LC_LANGUAGES and other GRASS_GLOBAL VARIABLES. Is it possible to define them in Init.sh (or .bat) and be used in Python Scripts? Best regards, Kim 2010/7/5 Glynn Clements gl...@gclements.plus.com Kim Besson wrote: I've been testing and kind of using GRASS-Python scripts for nearly 2 weeks and it's being great. So far no major issues but now I need to do something: - From a text file (ASCII) I need to read a few variables and make them global bariables I mean, be available and defined for a huge set of Scripts in order to avoid to define those variables in each Script. And, in case I change them, I only have to change in that ASCII File. My questions are: 1- How can I do GRASS to read an external File in order to define GLOBAL VARIABLES? 2- How can I call them from a GRASS_SCRIPT? A global variable in Python is local to the module in which it's defined. So you you have a module named config, to access any global variables in that module from other modules you would need either import config (in which case, variables will be accessible as config.whatever) or from config import * (but as the program grows, the chances of name collisions increase). For a set of related variables, e.g. configuration parameters, it's usually better to make them all members of a specific object, e.g.: class Params(object): def __init__(self, filename): # initialise members from file # read the config file params = Params(config.cfg) Then you only need to import a single name: from config import params -- Glynn Clements gl...@gclements.plus.com ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Define Global Variables and use them in a Python script
Hi Glynn and rest of the list I have tested this method by creating a config.py and a demo-example of config and I'm not being able to use this solution. Maybe I'm not fully understanding it (never used classes in Python): 1- I create a config1.py file in a working Python directory 2- I added this to config.py class Params(object): def __init__(self, filename): params = Params(config.cfg) 3- My config.cfg has the following: Ah= '1' Bu= '2' 4- Just for testing, in a Python Shell I do: from config1 import Params (WORK) Then: print Params I get: class 'config1.Params' So I cannot access variables inside config.cfg What am I doing wrong? Kim 2010/7/5 Glynn Clements gl...@gclements.plus.com Kim Besson wrote: I've been testing and kind of using GRASS-Python scripts for nearly 2 weeks and it's being great. So far no major issues but now I need to do something: - From a text file (ASCII) I need to read a few variables and make them global bariables I mean, be available and defined for a huge set of Scripts in order to avoid to define those variables in each Script. And, in case I change them, I only have to change in that ASCII File. My questions are: 1- How can I do GRASS to read an external File in order to define GLOBAL VARIABLES? 2- How can I call them from a GRASS_SCRIPT? A global variable in Python is local to the module in which it's defined. So you you have a module named config, to access any global variables in that module from other modules you would need either import config (in which case, variables will be accessible as config.whatever) or from config import * (but as the program grows, the chances of name collisions increase). For a set of related variables, e.g. configuration parameters, it's usually better to make them all members of a specific object, e.g.: class Params(object): def __init__(self, filename): # initialise members from file # read the config file params = Params(config.cfg) Then you only need to import a single name: from config import params -- Glynn Clements gl...@gclements.plus.com ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Define Global Variables and use them in a Python script
Hi there I've been testing and kind of using GRASS-Python scripts for nearly 2 weeks and it's being great. So far no major issues but now I need to do something: - From a text file (ASCII) I need to read a few variables and make them global bariables I mean, be available and defined for a huge set of Scripts in order to avoid to define those variables in each Script. And, in case I change them, I only have to change in that ASCII File. My questions are: 1- How can I do GRASS to read an external File in order to define GLOBAL VARIABLES? 2- How can I call them from a GRASS_SCRIPT? Thanks Best regards, Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Warning regarding Datum unknown not recognised by GRASS
So, this means that I'm not able to use g.proje -jf output to properly define a coordinate system right? 2010/6/29 Markus Neteler nete...@osgeo.org Hi Kim, On Tue, Jun 29, 2010 at 6:37 PM, Kim Besson kimbesson1...@gmail.com wrote: Hello Markus Thanks for the reply To do what you suggest, I would have to retrieve LOCATION's CRS EPSG code and I'm not able to get it automatically. I only can get that PROJ4 string by using g.proj. Is there a way to automatically get a LOCATIONS's EPSG code? That not possible (yet?) - also GDAL/OGR does not have a reverse lookup - too complicated or too many exceptions. The string +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +towgs84=0.000,0.000,0.000 +to_meter=1 looks like http://spatialreference.org/ref/epsg/32724/ to me. cs2cs -le | grep 'WGS 84' WGS84 a=6378137.0 rf=298.257223563 WGS 84 Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Warning regarding Datum unknown not recognised by GRASS
Greetings A couple of days ago I have exchanged a few messages with Paul Kelly and Micha Silver regarding this issue. But now I have a new example and I want to know if I'm doing anything wrong and better understand what is GRASS behaviour. I'm trying to have an aumatic procedure to reproject images using gdalwarp. First it checks image CRS (g.proj input=IMAGE -jf) and compares with Location's CRS (g.proj -jf). As target_CRS I'm using the output from g.proj -j -f . In this case, g.proj -jf give me the Location«s CRS: +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +towgs84=0.000,0.000,0.000 +to_meter=1 (Sidenote. This Location was created based on an EPSG) I use this expression to warp the image: gdalwarp -t_srs +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +towgs84=0.000,0.000,0.000 +to_meter=1 input.tif proj4.tif But if I check proj4.tif CRS I get this: +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +to_meter=1 Trying to open with OGR... Trying to open with GDAL... ...succeeded. Datum unknown not recognised by GRASS and no parameters found Why towgs84 is not kept in the image? THanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Warning regarding Datum unknown not recognised by GRASS
Hello Markus Thanks for the reply To do what you suggest, I would have to retrieve LOCATION's CRS EPSG code and I'm not able to get it automatically. I only can get that PROJ4 string by using g.proj. Is there a way to automatically get a LOCATIONS's EPSG code? Best regards, Kim 2010/6/29 Markus Neteler nete...@osgeo.org On Tue, Jun 29, 2010 at 11:20 AM, Kim Besson kimbesson1...@gmail.com wrote: Greetings A couple of days ago I have exchanged a few messages with Paul Kelly and Micha Silver regarding this issue. But now I have a new example and I want to know if I'm doing anything wrong and better understand what is GRASS behaviour. I'm trying to have an aumatic procedure to reproject images using gdalwarp. First it checks image CRS (g.proj input=IMAGE -jf) and compares with Location's CRS (g.proj -jf). As target_CRS I'm using the output from g.proj -j -f . In this case, g.proj -jf give me the Location«s CRS: +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +towgs84=0.000,0.000,0.000 +to_meter=1 (Sidenote. This Location was created based on an EPSG) I use this expression to warp the image: gdalwarp -t_srs +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +towgs84=0.000,0.000,0.000 +to_meter=1 input.tif proj4.tif But if I check proj4.tif CRS I get this: +proj=utm +south +no_defs +zone=24 +a=6378137 +rf=298.257223563 +to_meter=1 Trying to open with OGR... Trying to open with GDAL... ...succeeded. Datum unknown not recognised by GRASS and no parameters found Why towgs84 is not kept in the image? To my knowledge the GeoTIFF format is not able to keep the towgs84 string. Did you try with different formats? But in general, it may be better to assign proj metadata via EPSG code. Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Python Script to retrieve Location's GCS
Greetings Is there a Pythons Functionality to retrieve Locations Geographic Coordinates System? But in this case can these coordinates be used in GDALWARPs as as an Geographic Coordinates input ? Thanks Best regards, Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Using Vector Digitizer in Windows
Where can I find that tab? I can't find it at TclTkDigitizer 2010/6/3 Hamish hamis...@yahoo.com Kim: How can I put an image as a background? I am at v.digit form and I cannot see any field regarding that Markus: There should be, when starting, the option to select a background display *command* http://grass.osgeo.org/grass64/manuals/html64_user/v.digit.html which could be set to d.rast map=name_of_raster also you can do it in the settings controls once in the tool, there's a tab for it. Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Using Vector Digitizer in Windows
Hi I'm using Vector Digitizer in MS-Windows (Tcltk since WxGUI is not available) and I wanted to know How can I put an image as a background? I am at v.digit form and I cannot see any field regarding that Thanks Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] DAtum Warning while using r.in.gdal
Thanks to Paul and Micha for the help. About this: I defined my location using this image but instead of being reprojected with PROJ4 extension I used EPSG:3763 and then r.in.gdal. Then, using the same original image (in UTM) I reprojected to this CRS but using PROj4 extension (showed in my original message). What is the correct one? the bellow expression or the EPSG:3763 in order to reproject an image? It was only a warning. It imported the image nevertheless, without using -o option. 2010/5/31 Micha Silver mi...@arava.co.il On 05/31/2010 07:25 PM, Kim Besson wrote: Greetings Following a few suggestions made at this list I'm using gdalwarp to project a few landsat images and only then yusing r.in.gdal. I'm using this expression to reproject image: gdalwarp -t_srs +proj=tmerc +lat_0=39.668258 +lon_0=-8.1331084 +k=1 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +no_defs L71203033_03320001023_B10.TIF landsat_out.tif And when I run r.in.gdal I get this warning: Datum unknown not recognised by GRASS and no parameters found Projection of input dataset and current location appear to match What does this means? There's no +datum= parameter in the CRS definition, so the new, projected tif has no datum information. But, if you're sure the above parameters are correct, you can ignore the warning and tell GRASS to ignore the warning with the -o option to r.in.gdal. BTW, how did you define the GRASS Location? with the EPSG:3763 or the above definition? If so, then you surely should have no problem importing with the -o (over-ride projection check) option. Thanks kim This mail was received via Mail-SeCure System. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user This mail was received via Mail-SeCure System. -- Micha Silver Arava Development Co. +972-52-3665918 http://www.surfaces.co.il ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] DAtum Warning while using r.in.gdal
Greetings Following a few suggestions made at this list I'm using gdalwarp to project a few landsat images and only then yusing r.in.gdal. I'm using this expression to reproject image: gdalwarp -t_srs +proj=tmerc +lat_0=39.668258 +lon_0=-8.1331084 +k=1 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +no_defs L71203033_03320001023_B10.TIF landsat_out.tif And when I run r.in.gdal I get this warning: Datum unknown not recognised by GRASS and no parameters found Projection of input dataset and current location appear to match What does this means? Thanks kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Re: Get current location projection in a Python Script
Michael, regarding the use of regiondict = grass.region() , Does this retrieves Projection EPSG code? Kim 2010/5/25 Kim Besson kimbesson1...@gmail.com Greetings I'm building a GRASS Python Script to automatically import a set of data to my location. At GRASS book (chapter 3.3.3) it uses g.proj -wf to to check current location projection. Can I use the same command in Python to retrieve the same? And how about calling gdalwarp in a Python-GRASS Script? can it be called and used by a Python_GRASS Script? if so, is there any Python example with that? Regarding g.proj -wf command. I get a lot of information. I suppose GDALWARP can read this right ? If not, How can I obtain current Location EPSG code? Thanks Best regards, Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Open a raster from other MAPSET
Hi there, At my location have 2 MAPSETS: Mapset Regional, with raster with 300m SpatiaL Resolution and Mapset Urban with 5 meters Spatial Resolution. I need to pass a LandCovermap from Mapset regional to my Urban mapset but I need it in the same 5 meters Spatial Resolution instead of the original 300m. My question is: can this be done? and how can I pass a map from one Mapset to the other? Thanks Best regards Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Open a raster from other MAPSET
Hey Rich My idea is not to change mapset but to get a map and copy it to my Local mapset. Message: 5 Date: Wed, 26 May 2010 06:51:26 -0700 (PDT) From: Rich Shepard rshep...@appl-ecosys.com rshep...@appl-ecosys.com Subject: Re: [GRASS-user] Open a raster from other MAPSET To: grass-user@lists.osgeo.org Message-ID: alpine.lnx.2.00.1005260650400.5...@salmo.appl-ecosys.com alpine.lnx.2.00.1005260650400.5...@salmo.appl-ecosys.com Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Wed, 26 May 2010, Kim Besson wrote: My question is: can this be done? and how can I pass a map from one Mapset to the other? g.mapsets The resolution will be that of the current mapset. Rich ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Get current location projection in a Python Script
Greetings I'm building a GRASS Python Script to automatically import a set of data to my location. At GRASS book (chapter 3.3.3) it uses g.proj -wf to to check current location projection. Can I use the same command in Python to retrieve the same? And how about calling gdalwarp in a Python-GRASS Script? can it be called and used by a Python_GRASS Script? if so, is there any Python example with that? Regarding g.proj -wf command. I get a lot of information. I suppose GDALWARP can read this right ? If not, How can I obtain current Location EPSG code? Thanks Best regards, Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Export the conversion from Vector to Raster
Greetings This is probably a very dumb thing but I'm having a few difficulties doing this. I have an SHAPEFILE with classification polygons. And I need to Convert to raster (e.g. TIF) So I thought of using GRASS (of course) 1- Define region with a Landsat image used to create those Training areas outside GRASS 2- Run v.in.gor v.in.ogr -o dsn=C:\Data\GISDataBase\training_data.shp output=train00 Over-riding projection check Layer: training_data Default driver / database set to: driver: dbf database: $GISDBASE/$LOCATION_NAME/$MAPSET/dbf/ Importanto feições do mapa 448... - Building topology for vector map train00... Registering primitives... 448 primitives registered 2903 vertices registered Building areas... 448 areas built 448 isles built Attaching islands... Attaching centroids... Number of nodes: 448 Number of primitives: 448 Number of points: 0 Number of lines: 0 Number of boundaries: 448 Number of centroids: 0 Number of areas: 448 Number of isles: 448 Number of areas without centroid: 448 - Cleaning polygons, result is not guaranteed! Building topology for vector map train00... Number of nodes: 448 Number of primitives: 448 Number of points: 0 Number of lines: 0 Number of boundaries: 448 Number of centroids: 0 Number of areas: - Number of isles: - - Break polygons: - Remove duplicates: - Break boundaries: - Remove duplicates: - Clean boundaries at nodes: - Change dangles to lines: - Remove bridges: - Building topology for vector map train00... Building areas... 448 areas built 448 isles built Attaching islands... Number of nodes: 448 Number of primitives: 448 Number of points: 0 Number of lines: 0 Number of boundaries: 448 Number of centroids: 0 Number of areas: 448 Number of isles: 448 Number of areas without centroid: 448 Layer: training_data - - Building topology for vector map train00... Registering primitives... 896 primitives registered 3351 vertices registered Building areas... 448 areas built 448 isles built Attaching islands... Attaching centroids... Number of nodes: 896 Number of primitives: 896 Number of points: 0 Number of lines: 0 Number of boundaries: 448 Number of centroids: 448 Number of areas: 448 Number of isles: 448 - 448 input polygons Total area: 6.159110e+006 (448 areas) Overlapping area: 0.00e+000 (0 areas) Area without category: 0.00e+000 (0 areas) 3- It created a vectorial train00. When I open it at GRASS and overlays it with my landsat images they MATCH... 4- I want to create a RASTER exacly with the same characteristics as my landsat images but using Class Field as Raster values. I mean, the pixels inside polygons with class value 12 will have a vlue of 12. Reading GRASS book I decided to use v.to.rast v.to.rast input=trai...@permanent output=train_raster00 type=area column=Class labelcolumn=cat Loading data... Pass 1 of 2: Reading areas... Reading features... Writing raster map... Pass 2 of 2: Reading areas... Writing raster map... Converted areas: 448 of 448 Converted points/lines: 0 of 0 v.to.rast complete. 5- Open train_raster00 and it seems to be Ok when comparing with Vectorial 6- Metadata from is train_raster00 | Type of Map: raster Number of Categories: 0 | | Data Type:CELL | | Rows: 7109 | | Columns: 7662 | | Total Cells: 54469158 | |Projection: x,y | |N: 23020.21492744S: -190249.78507256 Res:30 | |E: 177696.83076767W: -52163.16923233 Res:30 | | Range of data:min = 1 max = 17 | And Metadata from Landsat is: | Type of Map: raster Number of Categories: 0 | | Data Type:CELL | | Rows: 7109 | | Columns: 7662 | | Total Cells: 54469158 | |Projection: x,y | |N: 23020.21492744S: -190249.78507256 Res:30 | |E: 177696.83076767W: -52163.16923233 Res:30 | | Range of data:min = 0 max = 255 | So it maches :) 7- Now, export this raster.Since I want a Geotiff I used: r.out.tiff input=train_raste...@permanent output=trainraster00a If I do gdalinfo to the exported file I get:river: GTiff/GeoTIFF Files: /mnt/GIS/trainraster00a.tif Size is 7662, 7109 Coordinate System is `' Image Structure Metadata: INTERLEAVE=PIXEL Corner Coordinates: Upper Left (0.0,
Re: [GRASS-user] Export the conversion from Vector to Raster
Hi Markus I did this: r.out.gdal input=train_raste...@permanentoutput=c:\Data\GISDataBase\trainraster00b nodata=-1 And I got PROJ_INFO not found for DATA PROJ_UNITS not found for PT_IGP Exporting to GDAL data type: Byte Unable to set projection Input raster map contains cells with NULL-value (no-data). The value -1 was used to represent no-data values in the input map. You can specify nodata value by nodata parameter. It's strange. Then I decided to do g.region display and I realized that: projection: 0 (x,y) zone: 0 north: 23020.21492744 south: -190249.78507256 west: -52163.16923233 east: 177696.83076767 nsres: 30 ewres: 30 rows: 7109 cols: 7662 cells: 54469158 (Fri May 07 10:40:07 2010) Comando terminado (0 sec) (Fri May 07 10:40:30 2010) g.region -p projection: 0 (x,y) zone: 0 north: 23020.21492744 south: -190249.78507256 west: -52163.16923233 east: 177696.83076767 nsres: 30 ewres: 30 rows: 7109 cols: 7662 cells: 54469158 I have NO PROJECTION :( How come? I have defined my Location from a projected Landsat image the same that I have imported. Any clues of what I did wrong? 2010/5/7 Markus Metz markus.metz.gisw...@googlemail.com Kim Besson wrote: [snip] 7- Now, export this raster.Since I want a Geotiff I used: r.out.tiff input=train_raste...@permanent output=trainraster00a You must use r.out.gdal to get a GeoTIFF, r.out.tiff produces an ordinary tif image, not a spatial raster dataset. Markus M ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Error in Projection from Landsat images
Greetings This topic was being discussed in converting Vector to raster and them I realized that it might be better to change it to here: I did gdalinfo to my landsat data is this: Driver: GTiff/GeoTIFF Files: L.tif Size is 7662, 7109 Coordinate System is: LOCAL_CS[ Geocoding information not available Projection Name = ETRS_1989_Transverse_Mercator Units = meters Geo, UNIT[unknown,1]] Origin = (-52163.169232331842068,23020.214927441673353) Pixel Size = (30.000,-30.000) Metadata: TIFFTAG_SOFTWARE=IMAGINE TIFF Support Copyright 1991 - 1999 by ERDAS, Inc. All Rights Reserved @(#)$RCSfile: etif.c $ $Revision: 1.10.1.9.1.9.2.11 $ $Date: 2004/09/15 18:42:01EDT $ TIFFTAG_XRESOLUTION=1 TIFFTAG_YRESOLUTION=1 TIFFTAG_RESOLUTIONUNIT=1 (unitless) AREA_OR_POINT=Area Image Structure Metadata: INTERLEAVE=PIXEL Corner Coordinates: Upper Left ( -52163.169, 23020.215) Lower Left ( -52163.169, -190249.785) Upper Right ( 177696.831, 23020.215) Lower Right ( 177696.831, -190249.785) Center ( 62766.831, -83614.785) Band 1 Block=64x64 Type=Byte, ColorInterp=Red Band 2 Block=64x64 Type=Byte, ColorInterp=Green Band 3 Block=64x64 Type=Byte, ColorInterp=Blue Band 4 Block=64x64 Type=Byte, ColorInterp=Undefined Band 5 Block=64x64 Type=Byte, ColorInterp=Undefined Band 6 Block=64x64 Type=Byte, ColorInterp=Undefined It has geographic information right? and it's supposed to be recognized by GRASS. So I decided to create a new Location. 1- Define name of the location (landsat02) 2- Choose method for creating a new location: Read Projection and datums from a georreferenced file== I select the file I choose no in defining region 3- Enter into location 4- do g.region -p and I get: projection: 0 (x,y) zone: 0 north: 23020.21492744 south: -190249.78507256 west: -52163.16923233 east: 177696.83076767 nsres: 30 ewres: 30 rows: 7109 cols: 7662 cells: 54469158 Everything else seems ok except the Projection that is (x,y). This means that it's not recognizing the coordinate system or am I doing something wrong? Thank you Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Call an external function from GRASS-Pythons Scripts
Hi I'm developing a small GRASS Python script but I will need to call an external executive. I already know where to put it (at $PATH) but i don't know how to call it from Python GRASS Script. How can I do this? (as an example it's helloWorld :) ) Thanks Best regards Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Call an external function from GRASS-Pythons Scripts
Here now at the ML for everyone :)
But which one of the two options is correct? The first one or the second
one? Or both are ok? (at least the second one is correct I suppose)
2010/4/22 Martin Landa landa.mar...@gmail.com
Hi,
{please keep discussion on ML}
2010/4/22 Kim Besson kimbesson1...@gmail.com:
Bur for instance you separated two argument inside [ ]. This means that
for
instance If I need to call a external function and inser input and output
I
would have to do this:
grass.call(['whoami', 'input_file', 'output_file']) or
grass.call(['whoami input output_file'])
it's first argument 'args'.
Martin
PS: Probably it would be reasonable to change configuration of ML
(send replay to the list instead to 'from') to avoid this mistake.
--
Martin Landa landa.martin gmail.com * http://gama.fsv.cvut.cz/~landa
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[GRASS-user] Installing snapshot on a defined Folder
Greetings from my Package manager (Synaptic in Ubuntu) I have installed GRASS-dev package in /usr/lib/grass64/. But, then I decided to install a Weekly snapshot to update a few issues. But the weekly snapshot was installed in /usr/local/grass-6.4.0svn. My question is, how can I define my installation destination directory to avoid having 2 different installations? Thank you Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] R-GDAL incompatible libraries
Hi I have installed R from Ubuntu repositories. My grass installation is a Weekly snapshot. I had to install rgdal since it doesn't exist in UBUNTU repositories neither CRAN and the same with spgrass6. Ok I will rebuild grass and reply again to mailing list Thanks Kim Did you install grass from source? Did you install R, spgrass6 from source? - If you have installed grass from source, then try to rebuild grass (after having installed R and the rest). - If you have grass from the ubuntu repositories, the you should probably stick with R and the rest from the repositories as well. If the latter is the case and it does not work, then there is a problem. Tell us a bit more... Nikos ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] R-GDAL incompatible libraries
Ok I have just installed latest GRASS snapshot and I got the following error precip30n - readVECT6(precip_30ynormals, ignore.stderr=TRUE) ERROR: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. What I would like to know is the versions of R and spgrass6 that I should install on my system in order to not get this errors? Thanks Kim 2010/3/2 Kim Besson kimbesson1...@gmail.com Hi I have installed R from Ubuntu repositories. My grass installation is a Weekly snapshot. I had to install rgdal since it doesn't exist in UBUNTU repositories neither CRAN and the same with spgrass6. Ok I will rebuild grass and reply again to mailing list Thanks Kim Did you install grass from source? Did you install R, spgrass6 from source? - If you have installed grass from source, then try to rebuild grass (after having installed R and the rest). - If you have grass from the ubuntu repositories, the you should probably stick with R and the rest from the repositories as well. If the latter is the case and it does not work, then there is a problem. Tell us a bit more... Nikos ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] R-GDAL incompatible libraries
Ok I reinstalled rgdal R CMD INSTALL rgdal And then: R library(spgrass6) Output: Loading required package: sp Loading required package: rgdal Geospatial Data Abstraction Library extensions to R successfully loaded Loaded GDAL runtime: GDAL 1.5.4, released 2009/01/07 Path to GDAL shared files: /usr/share/gdal15 Loaded PROJ.4 runtime: Rel. 4.6.1, 21 August 2008 Path to PROJ.4 shared files: (autodetected) Loading required package: XML GRASS GIS interface loaded with GRASS version: 6.4.0svn and location: North-Carolina precip30 - readVECT6(precip_30ynormals, ignore.stderr=TRUE) ERROR: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. Same error. I'm running GRASSsvn6.4.0, from latest week, in a Linux Machine with: rgdal_0.6-10 spgrass6_0.6-15. R version 2.9.2 (2009-08-24) Any idea of what might not be compatible? Thank you Kim 2010/3/2 Markus Neteler nete...@osgeo.org 2010/3/2 Kim Besson kimbesson1...@gmail.com: Ok I have just installed latest GRASS snapshot and I got the following error precip30n - readVECT6(precip_30ynormals, ignore.stderr=TRUE) ERROR: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. What I would like to know is the versions of R and spgrass6 that I should install on my system in order to not get this errors? You also need to update the GRASS-GDAL plugin. Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] R-GDAL incompatible libraries
Following Leo's suggestion I installed GDAL 1.6.3 and I tried again: library(spgrass6) Loading required package: sp Loading required package: rgdal Geospatial Data Abstraction Library extensions to R successfully loaded Loaded GDAL runtime: GDAL 1.6.3, released 2009/11/19 Path to GDAL shared files: /usr/share/gdal16 Loaded PROJ.4 runtime: Rel. 4.6.1, 21 August 2008 Path to PROJ.4 shared files: (autodetected) Loading required package: XML GRASS GIS interface loaded with GRASS version: 6.4.0svn and location: nc_spm_08 (seems OK?) precip - readVECT6(precip_30ynormals, ignore.stderr) OGR data source with driver: GRASS Source: /mnt/GIS/nc_spm_08/PERMANENT/vector/precip_30ynormals/head, layer: 1 with 136 features and 18 fields Feature type: wkbPoint with 3 dimensions (seems OK?) When I did plot(nc_state, axes=TRUE) plot(precip30n, add=TRUE, lwd=2, col=brown) Error: object 'precip30n' not found Error in plot(precip30n, add = TRUE, lwd = 2, col = brown) : error in evaluating the argument 'x' in selecting a method for function 'plot' THe last plot gave that error But would you say that it seems to be working? Thank you all for your help and support Thanks Kim Question: Is there any known problem with GRASS and GDAL1.6.3? 2010/3/2 Kim Besson kimbesson1...@gmail.com Ok I reinstalled rgdal R CMD INSTALL rgdal And then: R library(spgrass6) Output: Loading required package: sp Loading required package: rgdal Geospatial Data Abstraction Library extensions to R successfully loaded Loaded GDAL runtime: GDAL 1.5.4, released 2009/01/07 Path to GDAL shared files: /usr/share/gdal15 Loaded PROJ.4 runtime: Rel. 4.6.1, 21 August 2008 Path to PROJ.4 shared files: (autodetected) Loading required package: XML GRASS GIS interface loaded with GRASS version: 6.4.0svn and location: North-Carolina precip30 - readVECT6(precip_30ynormals, ignore.stderr=TRUE) ERROR: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. Same error. I'm running GRASSsvn6.4.0, from latest week, in a Linux Machine with: rgdal_0.6-10 spgrass6_0.6-15. R version 2.9.2 (2009-08-24) Any idea of what might not be compatible? Thank you Kim 2010/3/2 Markus Neteler nete...@osgeo.org 2010/3/2 Kim Besson kimbesson1...@gmail.com: Ok I have just installed latest GRASS snapshot and I got the following error precip30n - readVECT6(precip_30ynormals, ignore.stderr=TRUE) ERROR: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. What I would like to know is the versions of R and spgrass6 that I should install on my system in order to not get this errors? You also need to update the GRASS-GDAL plugin. Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] R-GDAL incompatible libraries
EHEHE this is true inglorious. Me and Gilbert were trying to compile and put this working and a simple typo was our final error. Thanks. Now it's working See ya Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] R-GDAL incompatible libraries
Greetings I have just installed R, spgrass6, rgdal into my Ubuntun installation. While I was running an example from GRASS book I got this error precip30n - readVECT6(precip_30ynormals, ignore.stderr=TRUE) ERROR: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. Where can I find an identification of the correct libraries versions. Thank you Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Wxpython GUI in UBUNTU 9.10
Hi About GRASS-dev: I should install this version If I want to develop functions/modules in GRASS? Or the normal package is enough? Ah as a Normal user, I guess. Now I tried this command sudo grass64 -wxpython.. and It worked... :( Why do I need to be a super-user to run GRASS?? 2010/1/20 Leo Hardtke leohard...@gmail.com Hi, the grass-dev version available at Synaptic package manager is 6.4.0-rc5-2. about the error... are entering grass as sudo? (sudo grass) or as a normal user? Leonardo Kim Besson escribió: Ciao Leonardo It was exacly what you were saying. :) Now I'm getting a different error, that I already sent to the mailing list. One question regarding grass version on karmic. - what is grass-dev that is available at Synaptic package manager? Thanks Kim 2010/1/19 Leonardo Hardtke leohard...@gmail.com mailto: leohard...@gmail.com Hi! I'm using the same grass version on Mint 8 (=karmik) without problems, check if python-wxgtk2.8 is installed in your system. leo 2010/1/19 Kim Besson kimbesson1...@gmail.com mailto:kimbesson1...@gmail.com Hello All I'm a nçew user of GRASS and I have downloaded grass (6.4.0~rc5-2) for i386 architecture from http://packages.ubuntu.com/karmic/grass. as far as I can see GRASS by command line is working. Now the problem seems to be wxpython grass64 -wxpython I get this error: Starting GRASS ... Traceback (most recent call last): File /usr/lib/grass64/etc/wxpython/gis_set.py, line 33, in module from gui_modules import globalvar File /usr/lib/grass64/etc/wxpython/gui_modules/globalvar.py, line 55, in module CheckForWx() File /usr/lib/grass64/etc/wxpython/gui_modules/globalvar.py, line 44, in CheckForWx except (ImportError, ValueError, wxversion.VersionError), e: UnboundLocalError: local variable 'wxversion' referenced before assignment Error in GUI startup. If necessary, please report this error to the GRASS developers. Switching to text mode now. Hit RETURN to continue... Can anyone help me on this? By the way, If I want to update my GRASS installation I just have to download a weekly snapshot ans install/Make it? Thanks Best regards,Kim ___ grass-user mailing list grass-user@lists.osgeo.org mailto:grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user --Lic. Leonardo A. Hardtke Laboratorio de Teledetección y S.I.G. Centro Nacional Patagónico (CONICET) Bvd. Brown 2825, 9120 Puerto Madryn, Chubut, Argentina ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Wxpython GUI in UBUNTU 9.10
Hi all
Leonardo suggested me to run as sudo grass64 -wxpython and it worked.
Why do I need to run as SUDO to fix this?
2010/1/20 Hamish hamis...@yahoo.com
Kim wrote:
ok Now it's working
but I got another ERROR and I guess this one has nothing to
do with WXpython.
An error windows stating
ERROR in command
execution g.region
Unable to get current geographic extent. Force quiting wxGUI.
Please run manually g.region to fix the problem.
When I press ok the window and GUI closes and it get back to
TERMINAL.
Any tips of what is
happening?
can you start up in text mode ('grass64 -text', then esc-enter)
and run 'g.region -p' from the command line?
(typically this error means a mis-match in the GDAL install
version, but you have to run g.region from the command line
to see the real error message find out. [devs: why can't the
GUI propgate the g.region error message for us?])
Hamish
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Re: [GRASS-user] Wxpython GUI in UBUNTU 9.10
Hello Ok my bad. I didn't have python-wxgtk2.8 installed. ok Now it's working but I got another ERROR and I guess this one has nothing to do with WXpython. An error windows stating *ERROR in command execution g.region* Unable to get current geographic extent. Force quiting wxGUI. Please run manually g.region to fix the problem. When I press ok the window and GUI closes and it get back to TERMINAL. Any tips of what is happening? Kim 2010/1/19 Hamish hamis...@yahoo.com Kim Besson wrote: I'm a new user of GRASS and I have downloaded grass (6.4.0~rc5-2) for i386 architecture from http://packages.ubuntu.com/karmic/grass. as far as I can see GRASS by command line is working. Now the problem seems to be wxpython Micha wrote: Check if you have installed the package python-wxversion: mi...@rms:~$ dpkg -l | grep wxversion ii python-wxversion2.8.10.1-0ubuntu1 The 6.4 GRASS package there only Suggests python-wxgtk2.8 (which depends on python-wxversion), it isn't a mandatory requirement (tcl is). Maybe we should bump that up to recommends. you might have a look at the other optional packages at http://packages.ubuntu.com/karmic/grass and decide if you want to install them too. (sure, it could fail in a cleaner way too!) Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Wxpython GUI in UBUNTU 9.10
Hello All I'm a new user of GRASS and I have downloaded grass (6.4.0~rc5-2) for i386 architecture from http://packages.ubuntu.com/karmic/grass. as far as I can see GRASS by command line is working. Now the problem seems to be wxpython grass64 -wxpython I get this error: Starting GRASS ... Traceback (most recent call last): File /usr/lib/grass64/etc/wxpython/gis_set.py, line 33, in module from gui_modules import globalvar File /usr/lib/grass64/etc/wxpython/gui_modules/globalvar.py, line 55, in module CheckForWx() File /usr/lib/grass64/etc/wxpython/gui_modules/globalvar.py, line 44, in CheckForWx except (ImportError, ValueError, wxversion.VersionError), e: UnboundLocalError: local variable 'wxversion' referenced before assignment Error in GUI startup. If necessary, please report this error to the GRASS developers. Switching to text mode now. Hit RETURN to continue... Can anyone help me on this? By the way, If I want to update my GRASS installation I just have to download a weekly snapshot ans install/Make it? Thanks Best regards, Kim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
