Re: [GRASS-user] r.stream.basins error
Francesco Mirabella pisze: Hi, more detailes are these, I can not reproduce it on speafish, Grass 6.4 rc6 compiled on debian testing The dem is the srtm 90 m dem, cut on an area of 12064631712 Square meters (1206463 hectars). The region was set to the dem raster, I provided a minimum flow accumulation of 100 to get a reasonable river network. Hope this can help Francesco J It looks very strange: if your 90 m srtm has 12064631712 m2 it means it has more or less 1.500.000 number of cells (depending on latitude). It also means that it is more or less 1250x1250 cells DEM. If you have used 100 cells accumulation threshold you shouldn't receive such dense network with 7500 streams. With DEM of such size and such threshold expected number of streams is about 1000-2000. However if you created 7500 network on such small dem it shouldn't work indeed. r.stream.basins is not prepared for calculation of direct basins (half basins) it it rather expanded version of r.water.outlet. If you however need direct basins for such dense network you can do it hacking source code. find this fragment of code: (catchment.c, line 24) int out_max = ncols + nrows; and change it into this: int out_max = (ncols + nrows)*10; and recompile program again. If this is the reason (however values you wrote are not consistent) I will not change the source code because as I wrote it is not prepared for that what you're try to do hth Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] r.stream : vetor of horton order
Milton Cezar Ribeiro pisze: Dear all, I extracted the drainage and direction from a DEM using r.stream.extract. r.stream.extract --o elevation=aster_dem_wgs84_UTM threshold=50 stream_vect=aster_dem_wgs84_UTM_vect_th00050 stream_rast=aster_dem_wgs84_UTM_rast_th00050 direction=aster_dem_wgs84_UTM_rast_th00050_direction How can I obtain a vector of Horton order?! cheers milton ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user r.stream.order will create table with attributes, also with horton order. The table can be joined (v.db.join) to vector network of r.stream.extract. Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] New modules in svn add-on: r.area and r.convergence
Hi I added new two modules to svn add-on. r.area Simple module available in almost every raster processing GIS application. Calculates area size of clumped areas and ascribe these values to these areas. Also allow remove small areas with size lower than treshold. All that functionality can be attempted with few existing grass commands (r.to.vect, v.db.addcolumn, v.to.db v.to.rast, r.mapcalc sequentially) but I spend less time programing this module than performing this set of operation (on rather huge map with over 10 cluped areas) r.convergence specializing module reworked from SAGA. Calculate convergnece index for given area based on DEM. Good wor detecting geomorphological lineaments. It use different method for slope-aspect calculation than SAGA (but the same as in GRASS r.slope.aspect), also can work in lat-long projections. As always any comments, tests, suggestions and critics are welcome Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Re: r.watershed: pretty flat areas
Markus Metz pisze: On Wed, May 12, 2010 at 9:00 PM, Hamish hamis...@yahoo.com wrote: before after screenshots welcome :) before: http://sites.google.com/site/markusmetzgiswork/accumulation_regular.png after: http://sites.google.com/site/markusmetzgiswork/accumulation_beautified.png less straight flow, main flow is more centered in the lake. I can't say if this is more accurate, but it looks nicer. It's not perfect, see south-eastern part of the lake. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user Hi As a way to proper drainage network topology it looks almost perfect. In DEM there is no information (if lake is represented by flat area on DEM) about flow structure in the lake so that approach looks good for me, if real flow is unknown! Good work Markus! J. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Polish datum problem
Markus Neteler pisze: 2010/4/7 Jarek Jasiewicz jar...@amu.edu.pl: Hi This is rather question for Polish GRASS users Did anyone notice what had happed with PUWG 1965 within Proj4 EPSG database? Since PROJ version 4.6 is : 2173 +proj=sterea +lat_0=53.583334 +lon_0=17.008333 +k=0.9998 +x_0=3501000 +y_0=5999000 +ellps=krass +units=m +no_defs but shoud be: +proj=sterea +lat_0=53.583334 +lon_0=17.008333 +k=0.9998 +x_0=3501000 +y_0=5999000 +ellps=krass +towgs84=33.4,-146.6,-76.3,-0.359,-0.053,0.844,-0.84 +units=m +no_defs; Yes, I see that it disappeared. EvenR told me in IRC right now, that it is back in proj-trunk. http://trac.osgeo.org/proj/browser/trunk/proj/nad/epsg and it causes error when zone 1-4 is choosed: WARNING: Datum Pulkowo_1942_58 not recognised by GRASS and no parametrs found And what had happend with PUWG1942? Dissapeared??? It temporarily disappeared in PROJ-4.7. :( Solutions: - update the epsg file from trunk (but I dunno if that's compliant) - we add the datums to lib/gis/datumtransform.table ? Markus Thanks for explanation Markus! I simply use old epsg database (from proj 4.5) with actual proj 4.7 and it works for these datums I use J. BTW: none one have noticed it for over the year??? ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Weighted v.kernel calculation
Ted Rosenbaum pisze: I have a dataset of manufacturing plants with employment levels at each one. I am looking to generate a kernel density map to show changing geographic distribution of employment over time. I am looking to generate a map similar to that generated by v.kernel, but just with weights on each point given by the employment of the plant. Is there a way to do this is grass (or other software...). Thanks, Ted Rosenbaum --- Graduate Student Department of Economics Yale University ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user weighted kernel density you can do with R spatstat package and next put it back to the GRASS: in R: library(maptools) library(spgrass6) library(spatstat) points=readVECT6(points) ppp_v=as(points[weight_attribute], ppp) dens_ppp_v=density(ppp_v, sigma=500, weights=ppp_v$marks) sp_dens=as(dens_ppp_v,SpatialGridDataFrame) writeGRASS6(sp_dens,name_of_result_raster_map) HTH J. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] New module for fuzzy calsification added to svn repository
Hi list! I added new module r.fuzzy.system to svn repository: this is standalone classification module, to work require only sets and rules definition (see module description and small tutorial in description.html) what module do (internally): - parse sets and rules text files before calculation - creates fuzzy sets based on user's definition - implicate fuzzy rules form antecedents to consequent based on user rules - aggregate consequents - defuzzify final set additional features: - output fuzzy maps for particular rules - output consequents and aggregated fuzzy set for particular cells (without map calculation) In spite that module has the same name as that created by Francois Declaux, it is completely new tools without any references to that except it was created for that same reasons. Module r.fuzzy system do not require r.fuzzy and r.fuzzy.logic to work, but these modules can be used to trace intermediate results (they use the same fuzzy algorithms) It fact module do almost all what I assumed, but there are probably lot of bugs and errors. Because it was rather difficult coding (especially text file and expression parser) any help with testing will be appreciated. I will also appreciate if someone with better English than mine can help me write tutorial on fuzzy logic in GIS Known issues: If there are cells for which membership in all sets is 0 module returns null. It is probably difficult to solve without extensive graphical UI with additional correction and check-out tools so probably will remain unsolved. regards Jarek Jasiewicz ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] New module for fuzzy calsification added to svn repository
I forgot: If there is someone who can help me adjust this analysis to analyze imagery data, please contact me. I know almost nothing on analysis of such data but it seems it could be useful for it. Jarosław Jasiewicz pisze: Hi list! I added new module r.fuzzy.system to svn repository: this is standalone classification module, to work require only sets and rules definition (see module description and small tutorial in description.html) what module do (internally): - parse sets and rules text files before calculation - creates fuzzy sets based on user's definition - implicate fuzzy rules form antecedents to consequent based on user rules - aggregate consequents - defuzzify final set additional features: - output fuzzy maps for particular rules - output consequents and aggregated fuzzy set for particular cells (without map calculation) In spite that module has the same name as that created by Francois Declaux, it is completely new tools without any references to that except it was created for that same reasons. Module r.fuzzy system do not require r.fuzzy and r.fuzzy.logic to work, but these modules can be used to trace intermediate results (they use the same fuzzy algorithms) It fact module do almost all what I assumed, but there are probably lot of bugs and errors. Because it was rather difficult coding (especially text file and expression parser) any help with testing will be appreciated. I will also appreciate if someone with better English than mine can help me write tutorial on fuzzy logic in GIS Known issues: If there are cells for which membership in all sets is 0 module returns null. It is probably difficult to solve without extensive graphical UI with additional correction and check-out tools so probably will remain unsolved. regards Jarek Jasiewicz ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Fuzzy logic in GRASS
Rich Shepard pisze: On Wed, 3 Mar 2010, Jaros?aw Jasiewicz wrote: There are at least however on problem: r.fuzzy for GRASS exist and not exist (by Francois Delclaux). I tried to contact with author but it failed and module is not available from add-on web page. For now I leave name r.fuzzy, but if it could be the problem I can change name or remove both module. Jarek, I've been in contact with Francois after downloading the most recent version (2000) of the code. At my request he sent me a thesis written by his student who did most of the work. It's all in French, and my ability to read, write, and speak that language has deteriorated over the decades to the point that it's virtually useless. I'll be happy to share what I have. Nice, If you can - for r.fuzzy shape parameter use nonstandard solution which is not applied in any software known for me. What you think about it? Or shall I change it into standard dilatation/concentration parameter (power/sqrt) Hedges come in a range of degrees of strength. 'Slightly' is a different hedge from 'very', for example. This is not hedge, it is value which I replace 2 in formula sin^2 *x for standard sigmoid boundary. If parameter is 0 the exponent is 2 on the other hand it changes the exponent to create more dilatation or more concentrate boundaries. It is non-standard solution but is described in description - i plan to add custom fuzzy set definition but it require manual typing of sets of points or some more complex membership function definition which may be difficult without visual assistance, so I'd like to know if it would be really useful In my opinion, what is needed first is a comprehensive description of what such a set of modules is intended to do. Fuzzy set in geology of Demico, Klir (2004) could be good starting point. I rather do not want to add fuzzy logic tutorial in geosciences to GRASS or at least not now. That is, in what situations should it be used and what insights should come from the results. This information then guides how it should work with raster and vector (lines, areas, points) data. No idea on fuzzy logic on vector. But R package sets could be good tool to work on vector attributes. I see two immediate applications. First, for areas traditionally delimited by crisp boundaries (e.g., soils, geology, wetlands) we should have a mechanism to define fuzzy boundaries. it is included Second, we should have a mechanism to query maps with terms such as 'near,' 'far,' 'large,' and 'steep.' It will be included in third module which is much difficult to write because it require parser of expressions. But I work on it. So if you have software of Francois, send me it. thanks Jarek P.S still ban on my e-mails on your server. R ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Fuzzy logic in GRASS
Thanks Rich! ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Univariate Statistics
Luis Lisboa pisze: Greetings I need to do some univariate statitstics that goes beyond the max/min/median/average/standard deviation. I need to do some outliers detection, distribution analysis and some more basic statistics. Since GRASS doesn't perform this I would like to know what are people using? Some statistical Python module (e.g. Statpy) or other software? Thanks Best regards, Luis ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user The easiest way is grass + R + spgrass6, Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] major update of r.stream.*
Hi list! I announce major update of r.stream.*: new nodule r.stream.angle: to calculate stream direction and inter-stream relation. That module use experimental algorithm to divide streams int shorter but near-straight line segments, and next calculate its direction (0-360 downstream). It may also divide line into segments along ordered lines of the same Strahler, Horton or Main stream order, depending on user choice. More in the description. I didn't know any GIS software which do such or similar segmentation. If someone knows (open or proprietary) I will be grateful for pointing it. major update r.stream.distance: now it can calculate distance to streams/junction/outlet downstream (default, it was previously available as thje whole module) and new option to calculate distance to the local or farthest maximum/divides upstream. See more details in the description. regards Jarek Jasiewicz ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] r.stream.basins
stephen sefick pisze: Thanks for the response - I moved the values to the closest synthetic stream, and it worked without a hitch. Thank you again for your time. kindest regards, Stephen On Thu, Jan 28, 2010 at 6:37 PM, MS msei...@gmail.com wrote: The points need to coincide with a nearby high value accumulation cell. r.astream.basins allow to make a 'trick' for such situation: create buffer around GPS points, rasterise it and next use it raster as stream map. Note that every point shall have its own category J. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Problem with r.watershed in Spearfish
Margherita Di Leo pisze: Hi list! I often used r.watershed without problems, but today i had a very strange one. Please can anyone verify that? I used Spearfish mapset, map: elevation.10m: g.region res=100 r.watershed elevation=elevation@permanent threshold=100 accumulation=acc_10 drainage=dir_10 stream=str_10 convergence=5 memory=300 The stream map has many streams with 0 value. The problem is only with res=100. Does r.watershed fail? Thank you confirmed for resolution between 90 to 110. With less than 90 and over 110 everythink is OK J. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] forcing raster accept only integer 0
Milton Cezar Ribeiro pisze: Hi Glynn, Thanks for the reply. By the way, where I can have access to the list of datatypes for a raster map? I ran on my raster map and got datatype=CELL. I was expecting to get byte,float,integer... bests milton 2010/1/22 Glynn Clements gl...@gclements.plus.com mailto:gl...@gclements.plus.com Milton Cezar Ribeiro wrote: I am trying to work around with a problem of map size under Vista (2G). I was wondering if I use the command below I will get a raster map with values integer and =0. r.mapcalc Dem.new=if(Dem=0,int(Dem),null()) That will produce an integer map with no negative values. As my original map have values positive and negative, as well as it is fload, my question is if are there a way of I force my output map accept only integers=0. By the way, is there a way of I know if a map is float or integer? r.info http://r.info/, or r.info http://r.info/ -t if you only want the type. -- Glynn Clements gl...@gclements.plus.com mailto:gl...@gclements.plus.com ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user CELL=integer FCELL=float DCELL= double precison J. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Major update of r.stream.order and r.stream.basins. New module: r.stream.pos
Hi all! A have made major update with r.stream.order and r.stream.basins: r.stream.order new functionality: - it can now create table to store drainage network topology. This table can be added to r.stream.extract vector file. For more details see description.html r.stream.basins new functionality: - much easier stream selection: now we can type only stream categories to create basins. No map algebra is necessary - r.water.outlet functionality added to r.stream.basins (define outlet by coordinates) - definition of outlets by vector point file r.stream.pos this is a helper module for linear geostatistics and local stream properties analysis. Nothing exciting PS. I have a problems with svn repository. If there are some problems with downloading or compiling please let me know, I will try to update as soon as possible. greetings Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] grass-7.0.svn with gdal installation problem on ubuntu9.10
Pankaj Kr Sharma pisze: Hello group, I have run it with grass-6.5.svn but the same gdal and gdal-grass plugin are not working with grass-7.0.svn. Any suggestions! Thanks. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user This is because different library version for grass65 and 7. This will also repeated if you using R. If you will try run spgrass on R from grass7 you will se following error: Incompatible library version for module. You need to rebuild GRASS or untangle multiple installations. GRASS 6.5.svn (nc_spm_08):~ suggestion: import data and run R in grass65 which is fairy stable, use 7 only for testing Or create new user and install locally both gdal and grass7 locally for that user HTH J. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] accumulation map from directions map
Achim Kisseler pisze: Hello again, I am still searching a method to generate a flow accumulation map from a flow direction map. I got the direction map from an arcgis user. In arcgis the module FLOWACCUMULATION(FLOW_DIR) would do this, but I want to use an open source solution. If anyone could give me a hint, where I could find a tool like this (inside GRASS it does not seem to be possible), I would be very grateful. Best regards, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user there shoud be no problem if you have oryginal DEM ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] r.stream.extract - stream dir map output
M S pisze: As an output from r.streams.extract, I'm getting a stream direction map that is only along the stream network, and null everywhere else. From the manual, it seems the direction map needs to be for the entire study area. I am looking to feed the streams and direction map into the r.stream.basins module. Since I'm on GRASS 6.4RC5, I dont have MFD option in my r.watershed, so I rely upon r.stream extract to output the stream network and the direction map. I had seen a portion in the notes stating Nowadays f direction map comes from r.stream.extract must be patched by direction map from r.watershed. (with r.patch). I wouldnt think I could patch the SFD direction output from r.watershed with the MFD stream direction map to create a direction map for the entire study area. Is there another solution to use MFD? if grass64 really do not have MFD (i'm suprised!) the only solution is to compile grass 65 from source Jarek Thanks, Mark ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] New version of r.stream.order
Hi all! I updated r.stream order to the new version. In new version Horton and Hack do not require accum map. It use the longest stream length (calculated internally) to determine both Hack and Horton. But accum it is still leave as an option. So now Hack stream order indicate the longest (previously most accumulated) stream in the catchment. Due to the module do not require to read huge accum maps for horton and hack orders it works almost twice faster than previously. I also added r.stream.del (see more in description) but its functionality is now integrated with r.stream.extract so I add it only as an option for r.watershed. It will be probably depreciated in the future. regards Jarek Jasiewicz ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] r.basins.fill usage
Hi try r.stream.basins from grass add-ons it has options (-c and -l flags) to generate subbasin without any manual work. Look also into tutorial on grass wiki about it (wiki - dokuments -r.stream.* Jarek Achim Kisseler pisze: Based on this excerpt from the manual, it seems the main external/perimeter watershed boundary, as well as the internal ridges need inputted? The raster map layer depicting ridges should include the ridge which defines the perimeter of the watershed. The coded stream network can be generated as part of the r.watershed program, but the map layer of ridges will need to be created by hand My question is really about the need to manually digitize ridges inside the watershed boundary delineated by r.watershed. As opposed to running r.watershed with a smaller threshold to get these smaller basin delineations within a given study area. If one has to manually digitize the internal ridges in a watershed, I wondered what the point of the module was. It obviously has application, but it seems I am missing something obvious. Hope that is more clear. Now its much clearer to me. Thanks. In my opinion the description ao r.basins.fill is now very detailed. I don't really understand it. So maybe someone else can help and maybe we could find out and enhance the description: I think this one: r.basins.fill generates a raster map layer depicting subbasins, based on input raster map layers for the coded stream network (where each channel segment has been coded with a unique category value).. is clear. Input is: raster map X from r.watershed stream=X Not clear to me is: ...and for the ridges within a given watershed. which is explained as: The raster map layer depicting ridges should include the ridge which defines the perimeter of the watershed. What should the parameter mean? How should that be stored in a raster-map? So try out: - take the stream-network and run r.mapcalc: r.mapcalc perimeter=if(X,5,null) Resulting map is a rastermap with value 5, where stream-network is not null. The five is raster-cells or map units or what else? - run r.basins.fill with that and see what happens. I guess: from each network-segment the subbasin is created which has a minimum distance of 5 (cells?) to the stream. So its something like a buffer. ...in contrast to: ...but the map layer of ridges will need to be created by hand (for example, through digitizing done in v.digit) = the ridges-map here is a vector-file! Achim PS: --%-- DESCRIPTION r.basins.fill generates a raster map layer depicting subbasins, based on input raster map layers for the coded stream network (where each channel segment has been coded with a unique category value) and for the ridges within a given watershed. The raster map layer depicting ridges should include the ridge which defines the perimeter of the watershed. The coded stream network can be generated as part of the r.watershed program, but the map layer of ridges will need to be created by hand (for example, through digitizing done in v.digit). The resulting output raster map layer will code the subbasins with category values matching those of the channel segments passing through them. A user-supplied number of passes through the data is made in an attempt to fill in these subbasins. If the resulting map layer from this program appears to have holes within a subbasin, the program should be rerun with a higher number of passes. --%-- ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Questions about GRASS license and other more restrictive licenses
rabotin pisze: Hello all, I've got a question concerning the license of GRASS. I'm working for a public french research center (INRA : French National Institute for Agricultural Research) ; we have developped a series of scripts in shell and perl languages for GRASS. These procedures are made for an informatic platform which is able to download under a license more restrictive than GPL license . And these procedures for GRASS will be accessible for download under this license too. So my question is : is this kind of license (a license more restrictive than GPL license) compatible with developing shell scripts for GRASS (as GRASS license is GPL license) or not ? Thanks for any informations you can provide Here you can read the following lines in the license provided with the informatic platform (and this license will be the same for these GRASS scripts) : 2) License of the software == a) INRA grants to You by this agreement a non-exclusive, world-wide and royalty-free license to use the software to the end described hereunder in the domain of the license, as long as You will comply with the terms and conditions of this agreement. b) You are authorised to download, install, execute the software on your computer within the limit of one license for one computer (one hard disk). c) Except specific and written agreement of INRA, You are not allowed to download, install or execute the software on a server. d) You are not authorised to rent, sell, sublease, distribute, assign, transfer, license, sublicense or otherwise share the software or one of INRA’s rights on the software. e) You are authorised to make a back-up copy of the software provided You will not use it on any else computer. You are responsible of the physical security of this copy and of the software. f) You may personalize the set up of the software or extend its functions. As well, You may translate, adapt, fix, modify the software when theses acts are necessary for the use of the software in accordance with this agreement. g) INRA reserves the right to correct errors and to determine the specific forms to which the following acts will be submitted: The copy of the source code of the software or the translation of this code are allowed when they are essential for the good working order of the software with other softwares and when they are essential for the use of the software in the domain of the license. Furthermore, You are not authorized to reverse engineer, disassemble or decompile the software. Necessary information for good working order with other softwares is available by INRA, without implying as regard to INRA any undertaking to supply any assistance or services associated with the software. h) You are not authorised to extract (that is transfer permanently or temporarily) whole or a part of the content of the software (data) onto an other medium, by any mean and in any form. Moreover, you are neither authorised to re-use (that is to put at the public’s disposal) whole or a part of the content of the software (data) whatever the form may be. i) Your are allowed to produce supplementary modules for the software, to improve or adapt the software provided however that the use of these modules, supplementary versions, improvements, additions or upgrades will be used in accordance with this agreement and strictly in the domain of the licence. In particular, You undertake to communicate these improvements or modules to INRA and to allow INRA to use them for its own research purposes. If the improvements or modules are dependant upon the software (according to code de la propriété intellectuelle), You may not disclose or transfer them to third parties without the prior and written consent of INRA on the forms of this distribution. If the improvement or modules are not dependant upon the software (according to code de la propriété intellectuelle), You may disclose and transfer them to third parties, provided You indemnify and hold harmless INRA with respect to any suit, claim or proceeding brought by a third party. Michael Rabotin Hi! I read the licence and I cannot understand it idea. I also afraid it is dangerous. If it concerns shell and pearl script it concerns open-code software (I mean software where code is fully accessible, not open-source sensu stricto) can be partially rewritten or solution used in especially shell scripts may be used in similar way in others completely independent scripts. I do not know what is area if interest of that shell and pearl scripts but publication of it may potentially restrict any activity of others who want to use or develop similar solutions: (i) Your are allowed to produce supplementary modules for the software, to improve or adapt the software provided however that the use of these modules, supplementary versions, improvements, additions or upgrades will be used in accordance with this agreement and strictly in the domain of the licence. In
Re: [GRASS-user] Re: r.stream.order problem making on mac os x
Hi I identified the error, it will be fixed in next few hours Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] stream network extraction
Markus Metz pisze: Hi all, in grass-addons is a new module for clean stream network extraction from flow accumulation. It can extract streams from accumulation maps generated with any method (D8, FD8, D-Inf, DEMON, etc) and any software, granted that exactly the same elevation map is provided that was used to calculate flow accumulation. In case of r.terraflow, that would be the flooded (filled) output elevation map, not the elevation map used as input for r.terraflow. For e.g. TAS flow accumulation as input, it must be the elevation map used within TAS to calculate flow accumulation. r.stream.extract output is available as raster and vector with unique stream IDs. The vector is a complete network with stream segments and points for stream heads, confluences and outlets. The raster output can be used as input for the r.stream.* modules of Jarek, also in grass-addons. Regards, Markus M ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user Hi Markus, Hi all. rest of r.stream* modules including new r.stream.stats for Hortonian statistics are now available by grass addons page and by grass add-ons svn repository. I actually move tutorial on r.stream* to grass wiki page. Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] stream network extraction
Markus Metz pisze: Jarosław Jasiewicz wrote: rest of r.stream* modules including new r.stream.stats for Hortonian statistics are now available by grass addons page and by grass add-ons svn repository. I actually move tutorial on r.stream* to grass wiki page. Great, IMHO the tutorials on your website are very helpful and show nicely all the various results the new r.stream.* modules can produce. Maybe a link to the wiki page can be added to the manuals? Markus M Will be, Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] wxpython 3D view
Hi I have one question about 3D view in wxpython Tcltk version had (still has) one good advantage: it respect current region settings - both res and boundaries. It will give us good oportunity to review and watch even very huge map with full resolution piece by piece (set computational resolution from current view - nviz). In wxpython 3D do not respect current regions and will always use the whole map. Or maybe I do something wrong? regards Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] row() and col() problem
Hi I try to generate map where every cell will have unique value I do that with following mapcalc formula: map=(row()*451)+col() where 451 is the total number of columns + 1 I expected following solution; 452,453,454,455, 953,954,955,956, . But I recived: 452,452,453,454,454, 452,452,453,454,454, 953,954,955,956, 953,954,955,956, Where is the error in formula (or it is rounding problem)? Regards Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] row() and col() problem
Hamish pisze: Jarosław Jasiewicz wrote: I try to generate map where every cell will have unique value I do that with following mapcalc formula: map=(row()*451)+col() where 451 is the total number of columns + 1 I expected following solution; 452,453,454,455, 953,954,955,956, . But I recived: 452,452,453,454,454, 452,452,453,454,454, 953,954,955,956, 953,954,955,956, Where is the error in formula (or it is rounding problem)? did you change the g.region resolution after creating the map? if you do 'g.region rast=map' before output is it ok? Yes, but not Hamish well, the problem may lays elsewhere r.stats -1 input=map shows expected result, but when I use display cell values layer form gis.m it shows wrong results. It change default region as I know. thanks Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] r.statistics depreciated?
Hi 1.) is that module depreciated? 2.) i'd like to rework it to handle floating points numbers. Could be there some possible problems with that? That module seems be faster to calculate statistics for polygons (after conversion to raster) than v.rast.stats Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] r.statistics depreciated?
Moritz Lennert pisze: On 30/09/08 12:28, Jarosław Jasiewicz wrote: Hi 1.) is that module depreciated? No, what makes you think this ? I red somewhere...nevermind 2.) i'd like to rework it to handle floating points numbers. Could be there some possible problems with that? AFAICT, one difficulty lies in the fact that the current code calls r.reclass which only works with integers. But there might be other issues. but it looks it is only for cover map. Base map could be floating? Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-dev] Re: [GRASS-user] mask in PERMANENT affect on other mapsets during reprojection
Hamish pisze: Hamish: side-suggestion: before running r.proj run v.in.region in the source location then v.proj from the taget location. Jarekj wrote: I always do as you suggest (in general other methods (with cs2cs) in grass are to complicated), sorry, I don't understand. is that to say that GRASS is easier or harder than other methods? (ie, if harder, what areas need improving and what is a clearer (proj4/gdal) method to use?) In general in grass help is also suggrested method with manual recalculating extension of grass region with cs2cs (and there is also wrapper for that program), the method you suggested is also in help, both method are grass method Many Thanks for information you added below, It will help me to finish my work faster Jarek Script must additionally check if no mask is present in PERMANENT or it is a bug and will be removed in the feature So as I understand the problem will heppen when I have mask in mapset in source which is named as my target mapset in target location: ussually it will concern PERMANENT? * Maps are searched for in the current mapset search path. (g.mapsets) * PERMANENT is, by default, in the map search path. (hence the name) * If you like you can use g.mapsets to remove PERMANENT from the (source mapset's) search path, then later re-add it, but that may leave you with a damaged mapset if the script exits before the path is restored. * You can switch between mapsets/locations within your script using the g.mapset (without an s at the end) module. * When raster maps are read, the mapset search path is searched for a map called MASK. If a map by that name is found in the search path then it is applied as the map of interest is read from the disk. * As Glynn noted, the module internally switches the current mapset, and so the for the time when the source mapset becomes the current mapset if there is a MASK map in the (source) search path, it will be used. (AFAIU) work arounds include - o temporarily switching into the source mapset with g.mapset (no s), removing everything but the current mapset from the source mapset's search path with g.mapsets (with an s), then switching back to the target mapset before running r.proj, then after r.proj is done going back and adding PERMANENT+any others removed back into the search path. As hinted above I think this solution to be rather poor. o temporarily switching into the source mapset with g.mapset (no s), and then run g.findfile element=cell file=MASK. The result (and exit code) will tell you if there is a map called MASK in the search path. What you do then is up to you. Maybe switch back to the original mapset/location and exit with an error or proceed with a warning. o change the method used by the r.proj code. (as suggested by Glynn) hope that makes the why a bit clearer. Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Strange v.to.points error
Martin Landa pisze: Hi, 2008/6/12 Jarosław Jasiewicz [EMAIL PROTECTED]: GRASS 6.3.svn (polska):~ v.to.points -n input=mrog_vector output=zb_point type=point,line, llayer=1 dmax=100 DBMI-Postgres driver error: Cannot select: select * from mrog_5 where 0 = 1 ERROR: relation mrog_5 does not exist Warning:Cannot open select cursor: 'select * from mrog_5 where 0 = 1' ERROR:Cannot copy table the input is mrog_vector error concerns completly different table, which realy don't exist what v.db.connect mrog_vector -p says? Probably you have accidently linked not existing table 'mrog_5' to the vector map. Martin v.db.connect -p says that no table is connected, in general I know nothing about mrog_5 I have never create it. adationally when I tried to add empty table the same message appear I remove the vector and import it again, I thing it was accident error due to some unknown circumstances, but why v.to.points became crazy? ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] break lines in intersection (rather category problem)
Hi! Problems may seems simple but isn't In a simple way (this is only one step there are lots of steps in the loop): I have two lines with same category in separate file. I patch them and make v.clean to braak them in the crossing point. Now I have four lines with same category. I need to load lenghts of every lines to database, (v.to.db) but: - if I add table and load its length I have sumarrised length of 4 lines - if I add new categories on another layer I have no way to join information about its previous category So I need new category for every new line to have records in database to read its length. And I need the old category as atrribute (something like second layer in v.to.points result) Any help??? Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Dbf driver error during compilation (fresh svn)
Hi During compilation of actual svn I recived error in dbf driver after make in its directory, there are nothing more messages than exit with error code 1 what can be the reason for? Jarek I do not install it so I cannot say if error really exist ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] How to find intersection of two lines
Hi I have lots of raster, thinned lines and second raster with with one line. I must find all points where second line intersect with lines on first raster it is very simple: r.mapcalc points=if(raster_two==1raster_one==1,1,null()) but there is one exception: AB BA when lines intersect with 45 grades. There is intersection but without common point. Naither buffor nor grow is not a solution because I need exactly one point lying exactly on line from raster one Any Ideas ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Issue with atribute column names
Hi In PG sql table I have columns etykietaPL, etykietaEN while I try to update atribute in v.digit module I recive error: DBMI-Postgres driver error: Cannot execute: update przekroje set etykieta = 'Dolina Nysy - Wał Brody Drewitz - Dolina Lubszy', symbol = 'D', etykietaEN = null, kat = null where cat = 5 ERROR: column etykietaen of relation przekroje does not exist LINE 1: ...Wał Brody Drewitz - Dolina Lubszy', symbol = 'D', etykieta_E It is simple: Capial leters in columns name are not allowed, but why? Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] simple shell problem
Hi
why:
g.region -g | awk -F= '/^nsres=/ {print $2 * 1.45}'
works, but:
bufdist=`g.region -g | awk -F= '/^nsres=/ {print $2 * 1.45}'`
or
bufdist=`eval g.region -g | awk -F= '/^nsres=/ {print $2 * 1.45}'`
not work, while, wery similar structure:
n=`g.region -g | awk -F= '/^n=/ {print $2+2000}'`
works??
i.e what is wrong in bufdist calculation??
thanks if somebody ansfer
Jarek
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Re: [GRASS-user] simple shell problem
Manuel Francisco Maestre Páez pisze:
Because of the * you must escape the multiplier operator \* (without
the quotes)
Manuel Francisco Maestre Páez
[EMAIL PROTECTED] escribió: -
Para: grass-user@lists.osgeo.org
De: Jaros#322;aw Jasiewicz [EMAIL PROTECTED]
Enviado por: [EMAIL PROTECTED]
Fecha: 03/03/2008 09:51
Asunto: [GRASS-user] simple shell problem
Hi
why:
g.region -g | awk -F= '/^nsres=/ {print $2 * 1.45}'
works, but:
bufdist=`g.region -g | awk -F= '/^nsres=/ {print $2 * 1.45}'`
or
bufdist=`eval g.region -g | awk -F= '/^nsres=/ {print $2 * 1.45}'`
not work, while, wery similar structure:
n=`g.region -g | awk -F= '/^n=/ {print $2+2000}'`
works??
i.e what is wrong in bufdist calculation??
thanks if somebody ansfer
Jarek
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no!
escape ( /* ) is needed in 'expr' command, here is in awk, generaly
command work but I cannot add the result to variable
J.
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Re: [GRASS-user] a few suggestions and questions
Nikos Alexandris pisze: On Mon, 2008-03-03 at 22:52 -0300, Carlos Guâno Grohmann wrote: Hello all [...] is plan curvature in r.param.scale broken? I can't get a map of it. profc works fine. Also is it possible to make r.param.scale work in latlong regions? (please?) it is imposible due to polinominal fitting when window is more than 3 Probably not! Just tested... and it says: Lat/Long location is not supported Maybe check the PhD thesis: www.soi.city.ac.uk/~jwo/phd/ ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] v.patch and topology
I found small issue with v.patch If set of lines are patched to one file, v.bulid is necesarry to rebulid topology. On the other way categories cannot be uploaded to database (OUT OF MEMORY error mesage!). After v.build all works OK. Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Problems with actual grass6.3.cvs
Dr. Manuel Seeger pisze: Hello all, I have compiled the actual grass6.3.cvs When I start it, it hangs up at the start screen of the gis.m gui. Working on Ubuntu 7.10 sun 64 bit Best regards and wishes Manuel looks like well-known problem of make distclean Jarek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
