[GRASS-user] plotting quarter degree squares?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi I have received from somebody a list of quarter degree squares located in South Africa. Is there any easy way of plotting these into a map together with the borders of South Africa and the provinces? The second part (the borders) should not be the problem, but how can I convert the list of qds into a raster / point layer? The list looks as follow: 3030CC 3129BB 3129BD 3129DA 3130AA 3218DB 3318BC 3318CB And no, I don't think there is the option to get a different format - closed source software, custom build, and developer left... No Comment. Cheers, Rainer - -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Stellenbosch University South Africa Tel : +33 - (0)9 53 10 27 44 Cell: +33 - (0)6 85 62 59 98 Fax : +33 - (0)9 58 10 27 44 Fax (D):+49 - (0)3 21 21 25 22 44 email: rai...@krugs.de Skype: RMkrug -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iEYEARECAAYFAlBZnIIACgkQoYgNqgF2egoA2QCfU44sGY8SwkQt2dWmWYyuBLiJ qL0AoIbOrjxbLWwB9EvjDBvtlulq075p =Zf00 -END PGP SIGNATURE- ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] plotting quarter degree squares?
On Wed, Sep 19, 2012 at 12:20 PM, Rainer M Krug r.m.k...@gmail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi I have received from somebody a list of quarter degree squares located in South Africa. Is there any easy way of plotting these into a map together with the borders of South Africa and the provinces? If I got it right, you could look into r.in.srtm script. A SRTM tile position is derived from the *name* of the tile. Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] New AddOns for Analyzing landscape connectivity based on graph-theory - the r.connectivity.*-toolchain
hi Stefan, Now I added an example to the manuals based on the North Carolina data set. thanks, tested now with osgeo4w-wingrass6.4.3svn in win7-64bit-box following your example. some issues: (A) manual ###Patch input vector map ##Extract habitat patches #Condition 1: Category 11 = Bottomland Hardwoods/Hardwood Swamps #Condition 2: no border-cells are suitable r.mapcalc patches=if(\ landuse96_28m[0,1]==11\ [...] in windows (from the mapcalc-gui): r.mapcalc patches = if(landuse96_28m[0,1]==11landuse96_28m[0,-1]==11landuse96_28m[1,1]==11landuse96_28m[1,0]==11landuse96_28m[1,-1]==11landuse96_28m[-1,1]==11landuse96_28m[-1,0]==11landuse96_28m[-1,-1]==11landuse96_28m==11,1,null()) (B) manual: v.extract input=patches@user1 output=patches_1ha type=point,line,boundary,centroid,area,face layer=1 where=area_ha1 new=-1 --overwrite maybe simplified and correctedt to? v.extract input=patches output=patches_1ha type=area layer=1 where=area_ha 1 (C) r.connectivity.distance --verbose patches=patches_1ha@g65 costs=costs@g65 pop_proxy=area_ha prefix=hws_connectivity folder=C:\tmp\connect cutoff=4500 border_dist=18 Preparing boundaries... Calculating connectivity-distances for patch number 2 C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity. distance: line 379: [: -gt: unary operator expected C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity. distance: line 386: [: -eq: unary operator expected Calculating connectivity-distances for patch number 13 [...] C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity. distance: line 386: [: -eq: unary operator expected Calculating connectivity-distances for patch number 298 C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity. distance: line 379: [: -gt: unary operator expected C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity. distance: line 386: [: -eq: unary operator expected (Wed Sep 19 14:59:51 2012) Command finished (5 min 49 sec) there are a lot of these [: -eq: unary operator expected-messages. following files are created: closest.points edges.csv r_connectivity.log r_connectivity.log.tmp vertices_part_1.csv vertices_part_2.csv (D) some test r.connectivity.network -y -i folder=C:\tmp\connect connectivity_cutoff=1500.0 lnbh_cutoff=2.0 cl_thres=10 exponent=-3 kernel_plot=C:\tmp\connect\kernel.eps overview_plot=C:\tmp\connect\overview.eps cores=1 rm: cannot lstat `C:tmpconnect/r_connectivity.log.tmp': No such file or directory which: R: unknown command ERROR: R is required, please install R first r.connectivity.network -y -i folder='C:\tmp\connect' connectivity_cutoff=1500.0 lnbh_cutoff=2.0 cl_thres=10 exponent=-3 kernel_plot=C:\tmp\connect\kernel.eps overview_plot=C:\tmp\connect\overview.eps cores=1 rm: cannot lstat `C:tmpconnect/r_connectivity.log.tmp': No such file or directory which: R: unknown command ERROR: R is required, please install R first (Wed Sep 19 15:09:44 2012) Command finished (1 sec) r.connectivity.network -y -i folder=C:\tmp\connect connectivity_cutoff=1500.0 lnbh_cutoff=2.0 cl_thres=10 exponent=-3 kernel_plot=C:\tmp\connect\kernel.eps overview_plot=C:\tmp\connect\overview.eps cores=1 ERROR: r_connectivity.log file could not be found or is not readable. = r_connectivity.log seams not be readable = R is installed here on my system, but (as default by the R-installation) not in the %PATH% have a look how GRASS GIS-R-coupling is done by the standalone-wingrass-installer (but not in osgeo4w-wingrass): http://grass.osgeo.org/wiki/R_statistics#MS_Windows - best regards Helmut -- View this message in context: http://osgeo-org.1560.n6.nabble.com/New-AddOns-for-Analyzing-landscape-connectivity-based-on-graph-theory-the-r-connectivity-toolchain-tp5000351p5002964.html Sent from the Grass - Users mailing list archive at Nabble.com. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] plotting quarter degree squares?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 19/09/12 13:46, Markus Neteler wrote: On Wed, Sep 19, 2012 at 12:20 PM, Rainer M Krug r.m.k...@gmail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi I have received from somebody a list of quarter degree squares located in South Africa. Is there any easy way of plotting these into a map together with the borders of South Africa and the provinces? If I got it right, you could look into r.in.srtm script. A SRTM tile position is derived from the *name* of the tile. Thanks. In the manual of r.in.srtm, it says SRTM tiles are of 1 degree by 1 degree size., but my references refer to quarter degree squares - can I use this as well? Could I get some guidance how? Rainer Markus - -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Stellenbosch University South Africa Tel : +33 - (0)9 53 10 27 44 Cell: +33 - (0)6 85 62 59 98 Fax : +33 - (0)9 58 10 27 44 Fax (D):+49 - (0)3 21 21 25 22 44 email: rai...@krugs.de Skype: RMkrug -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iEYEARECAAYFAlBZz7cACgkQoYgNqgF2egr4rACgguQlmJpYQs8ddIqsQfSlXNcC 5T8An0AUM6mcrohO7p3CKtEhlTbCl9wA =HAxa -END PGP SIGNATURE- ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] New AddOns for Analyzing landscape connectivity based on graph-theory - the r.connectivity.*-toolchain
Dear Helumt Many thanks for testing! I have to admit, that I personally find it quite challenging to write a shell-script that also works on (the different) Windows platforms (I really should learn more Python...). On Windows everything feels less predictable... B) B can be easily fixed and I shall do so ASAP. Regarding A: Did I get you right that you had problems with the ' \ ' and ' '? Removing the backslash won`t be a problem, but I think the quotation-marks are required on Linux... For the latter it is probably best to put a note in the example... C) C occurs because v.extract (at line 377 of the script) fails. I assume you used the command-line in the wxPython-GUI? Could you be so kind and try to use the command in the text version of wingrass? I managed to run the example on Windows XP and in the text-GUI. It is a mystery to me why some wingrass commands behave differently when invoked from the command-line in the GUI and from the command-line (text-GUI). Maybe the wxPython - text - GUI differences are also causing A (and D)!? I think it would be a pitty if the GUI was not usable for these addons, but I feel that it is beyond my power to make it work... Are there any solutions I could use from other shell-scripts (calling v.extract)? D) The %PATH% settings are also a problem for ghostscript which is required for eps-output (the plots). Because this is neither added to the %PATH%-variable by default, I simply skipped/deactivated checking for ghostscript in windows (here also the commands / executables can be different... :-( ), so checking for ghostscript on Windows is challenging in itself. The problem with R is, that R is called by the script (while ghostscript is not). In other words: the script requires that the path to R is defined in the %PATH% settings and that R can be called directly... Maybe the best way to solve this is to add this information to the error-message (and a link to the GRASS-R-Wiki...). Strange that r_connectivity.log seams not to be readable. Because from your output you posted I can see, that the file was written at the correct place. So the path must have been interpreted correctly for writing. I have no idea why it is obviously not interpreted correctly for reading... I will check that... Best regards Stefan -- View this message in context: http://osgeo-org.1560.n6.nabble.com/New-AddOns-for-Analyzing-landscape-connectivity-based-on-graph-theory-the-r-connectivity-toolchain-tp5000351p5003029.html Sent from the Grass - Users mailing list archive at Nabble.com. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] New AddOns for Analyzing landscape connectivity based on graph-theory - the r.connectivity.*-toolchain
hi Stefan, Many thanks for testing! de nada Regarding A: Did I get you right that you had problems with the ' \ ' and ' '? r.mapcalc patches=if(\ landuse96_28m[0,1]==11\ [...] this isn't possible in the wxgui-commandline (not tried in the wingrass-windows-commandline; most users on windows probably are using only the GUI) Removing the backslash won`t be a problem, but I think the quotation-marks are required on Linux... unfortunately there seams to be inconsistency between unix/windows/GUI/commandline For the latter it is probably best to put a note in the example... sure, but better feel free to open a ticket for this in http://trac.osgeo.org/grass/, because otherwise it's getting lost in manual/ML and other modules/scripts etc. are able to benefit C) C occurs because v.extract (at line 377 of the script) fails. I assume you used the command-line in the wxPython-GUI? yes Could you be so kind and try to use the command in the text version of wingrass? sure, but unfortunately the same message: [...] Calculating connectivity-distances for patch number 279 C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity.distance: line 379: [: -gt: unary operator expected C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity.distance: line 386: [: -eq: unary operator expected 100% 100% Calculating connectivity-distances for patch number 294 C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity.distance: line 379: [: -gt: unary operator expected C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity.distance: line 386: [: -eq: unary operator expected 100% 100% Calculating connectivity-distances for patch number 298 C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity.distance: line 379: [: -gt: unary operator expected C:/OSGeo4W/apps/grass/grass-6.4.3svn/scripts/r.connectivity.distance: line 386: [: -eq: unary operator expected 100% 100% GRASS 6.4.3svn (nc_spm_08) It is a mystery to me why some wingrass commands behave differently when invoked from the command-line in the GUI and from the command-line (text-GUI). ...windows itself is a mystery...not only the differences between XP, Vista, 7 and soon 8 I think it would be a pitty if the GUI was not usable for these addons, but I feel that it is beyond my power to make it work... Are there any solutions I could use from other shell-scripts (calling v.extract)? feel free to post this issue separately on the dev-ML or open a ticket in http://trac.osgeo.org/grass/ The %PATH% settings are also a problem for ghostscript which is required for eps-output (the plots). adding the ghostscript-%PATH%-issue to the manual? Because this is neither added to the %PATH%-variable by default, I simply skipped/deactivated checking for ghostscript in windows (here also the commands / executables can be different... :-( ), the windows mystery... so checking for ghostscript on Windows is challenging in itself. The problem with R is, that R is called by the script (while ghostscript is not). In other words: the script requires that the path to R is defined in the %PATH% settings and that R can be called directly... Maybe the best way to solve this is to add this information to the error-message (and a link to the GRASS-R-Wiki...). in the standalone winGRASS6.5svn/winGRASS7-installer there is the new approach of R-winGRASS-coupling by the Windows batchfiles for use with R mentioned in the wiki (http://grass.osgeo.org/wiki/R_statistics#GRASS_7_Usage), in the upcoming standalone winGRASS6.4.3(svn) there is the old statically approach (http://grass.osgeo.org/wiki/R_statistics#GRASS_6_Usage_III_.28taken_from_the_grass-stats-ML.29) because of nearly feature freeze. in short, in the standalone-winGRASSX.x.x, R should in the %PATH% in the osgeo4w-winGRASSX.x.x R isn't yet in the %PATH%. please feel free to open a ticket in http://trac.osgeo.org/grass/ to change this. Strange that r_connectivity.log seams not to be readable. Because from your output you posted I can see, that the file was written at the correct place. yes So the path must have been interpreted correctly for writing. I have no idea why it is obviously not interpreted correctly for reading... I will check that... no idea at the moment for this. - best regards Helmut -- View this message in context: http://osgeo-org.1560.n6.nabble.com/New-AddOns-for-Analyzing-landscape-connectivity-based-on-graph-theory-the-r-connectivity-toolchain-tp5000351p5003035.html Sent from the Grass - Users mailing list archive at Nabble.com. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] using r.walk
Hi! All, I am trying to use r.walk for deriving least cost path. The input is DEM filled raster data generated from terraflow, and friction map is valued at 1. However, I get only 2 at best 5 pixel routing. While using r.cost with slope map as input gives me the complete route between two points. Just cannot locate where I am wrong in r.walk. Any, missing step I dont know. Kindly, give some detailed instructions for successfully using r.walk. Can I use flow accumulation, flow direction map or aspect map for generating LCP from r.walk, if yes then please tell me how to deploy them. Thanks! Ambrish Dhaka ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
