[GRASS-user] Apologies! - which points in vector A *DO NOT* fall in areas of vector B?

Sorry for the fine mess ... this is what I meant: I need to discover which points out of vector A (points) *DO NOT* fall within the area covered by vector B (areas). How do I do that? I tried v.select and v.overlay, but without success. Best Regards -- Corrado Topi Global Climate Change

[GRASS-user] which points in vector A fall in areas of vector B?

Dear friends, I need to discover which points out of vector A fall within the area covered by vector B (areas). How do I do that? I tried v.select and v.overlay, but without success. Best Regards -- Corrado Topi Global Climate Change and Biodiversity Area 18,Department of Biology University

[GRASS-user] v.buffer segmentation fault

). Can Martin do anything about it? Best Regards -- Corrado Topi Global Climate Change and Biodiversity Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0) 1904 328645, E-mail: ct...@york.ac.uk ___ grass-user mailing list

Re: [GRASS-user] v.buffer segmentation fault

1) GRASS version: 6.3, 6.4 RC4 Operating system: Linux Kubuntu 9.04 64 bit, FC 9.0 64 bit, Linux Kubuntu 904 32 bit Which makes me assume this is a bug since the vectors are clean. Where do I get those datasets? 2) Yes On Friday 24 July 2009 11:03:03 you wrote: Corrado Topi wrote: I have

Positive reproducibility with spearfish - Re: [GRASS-user] v.buffer segmentation fault

24 July 2009 11:34:42 Corrado wrote: 1) GRASS version: 6.3, 6.4 RC4 Operating system: Linux Kubuntu 9.04 64 bit, FC 9.0 64 bit, Linux Kubuntu 904 32 bit Which makes me assume this is a bug since the vectors are clean. Where do I get those datasets? 2) Yes On Friday 24 July 2009 11:03:03

Re: [GRASS-user] LANDSAT data archive now free

Dear grasslings, I was not able to understand whether there was any information provided with the images, or only the images. Best, On Friday 12 December 2008 05:38:21 maning sambale wrote: We can now access the full 35+ years of archive Landsat 1 through 7 for free. -- Corrado Topi

[GRASS-user] What happened to http://spatialreference.org/????

Dear friends, do you know what happened to http://spatialreference.org/? It seems to be always down it was so good for EPSG codes! Best, -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0

Re: [GRASS-user] Raster file from ascii file and flattening Africa .... :)

analysis at that type of resolution in an area preserving projection / datum. I am asking the gurus what is the best area preserving projection / datum I could use for Africa and the hows. Thanks again. On Wednesday 03 December 2008 17:05:15 Moritz Lennert wrote: On 03/12/08 10:26, Corrado wrote

[GRASS-user] Mapping Africa in an equal area projection

) Cylindrical Equal Area I do not really know which one to choose. What do you recommend? For each of them, which ellipsoid and datum would you choose? Regards -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone

[GRASS-user] Raster file from ascii file and flattening Africa .... :)

the average? 2) How do we flatten Africa so that we may use 100km x 100km squares instead of 1 degree x 1 degree, without committing a geographical crime? What we need is to respect the areas Best regards and apologies for the silliness of the questions. -- Corrado Topi Global Climate Change

Re: A solution? (including resolution) - Re: [GRASS-user] Re: Help: Converting a raster map between locations (from wgs84 lat / long to UTM)

On Tuesday 04 November 2008 19:17:23 Glynn Clements wrote: Corrado wrote: does the r.proj resample the raster? The documentation seems to suggest you have to use g.region -m, or may be I did not understand it properly. Like most raster commands, the output from r.proj has bounds

[GRASS-user] Exporting raster maps into structured ascii file (X, Y, value, ...., value)

) them into a text (CSV) file in the format: coordinate X, coordinate Y, value from map 1, ., value from map 36 is that possible? if it is possible, how? Thanks! -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK

[GRASS-user] Exporting raster map into unusual ascii file

) them into a text (CSV) file in the format: coordinate X, coordinate Y, value from map 1, ., value from map 36 is that possible? if it is possible, how? Thanks! -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK

[GRASS-user] Bug?: Projecting the same region from location to location and back gives a different result!!!!

with g.region vect=back_fromB. The region I get in location A is compeltely different from the original location !!! But it should not be . it should actually be the same! Help! Best, -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology

Re: A solution? (including resolution) - Re: [GRASS-user] Re: Help: Converting a raster map between locations (from wgs84 lat / long to UTM)

November 2008 19:55:03 Glynn Clements wrote: Corrado wrote: this is what I have done: 9) set the resolution to the resolution calculated previously: g.region nsres=927.90359439 ewres=508.14568663 10) project the raster file: r.proj input=dummy01 location=test12 mapset=PERMANENT

A solution? (including resolution) - Re: [GRASS-user] Re: Help: Converting a raster map between locations (from wgs84 lat / long to UTM)

/lon to meter and vice-versa? There is no correct resolution when re-projecting rasters; whatever you choose, the conversion will be lossy to some extent. It's just a question of what's adequate for your purposes. -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18

Failure on Re: [GRASS-user] Help: Converting a raster map between locations (from wgs84 lat / long to UTM)

October 2008 11:38:47 Daniel Victoria wrote: Corrado, What v.in.region does is create a vector that surrounds your current region. Then, when you run v.proj, the vector covering the region is brought to your target location so you know where your projected raster should be at... The manual labor

[GRASS-user] Questions about datum management

27700? The code should be enough to create everything! Regards -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0) 1904 328645, E-mail: [EMAIL PROTECTED

Re: [GRASS-user] Help: Converting a raster map between locations (from wgs84 lat / long to UTM)

but, the conversion from lat/long to meters is not a straight one... Cheers Daniel On Wed, Oct 22, 2008 at 2:44 PM, Corrado [EMAIL PROTECTED] wrote: Dear friends, I am trying to convert a GTOPO30 DEM (raster) map (for UK) from lat / long wgs 84 to UTM for UK. I am running into rserious

Re: [GRASS-user] Help: Converting a raster map between locations (from wgs84 lat / long to UTM)

On Thursday 23 October 2008 11:38:47 Daniel Victoria wrote: Thanks Nikos and Daniel again! I was seriously hoping that GRASS would have managed the conversion for me I do not think we could actually define the resolution by hand (it would not really be accepted in a paper)! Corrado

[GRASS-user] Help: Converting a raster map between locations (from wgs84 lat / long to UTM)

What am I doing wrong? I have tried so many different alternative solution. Best, -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0) 1904 328645, E-mail: [EMAIL PROTECTED

Re: [GRASS-user] v.distance warning (WARNING: more cats of to_layer)

categories assigned to the area (i.e. centroid) in given layer (to_layer). The last found category in given layer is taken for computation, maybe v.distance should be fixed to handle also multiple categories in one layer(?) Martin 2008/3/12, Corrado [EMAIL PROTECTED]: Dear Martin, I do

[GRASS-user] v.distance warning (WARNING: more cats of to_layer)

Dear friends, what does the warning: WARNING: more cats of to layer mean, when you execute the command v.distance? Best Regards -- Corrado Topi Global Climate Change and Biodiversity Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0) 1904 328645, E-mail

Re: [GRASS-user] Error using v.in.ogr to load a shapefile: any clue?

a name to *all* the columns up to the one you want to change, and your UPDATE field is the last one. So you'd have to use: cnames=cat,AREA,PERIMETER,SSI_,SSI_ID,CARTO_CODE,OVERLAP_CO,SITE_NAME,SITE_ HA,NOTIFIED,COUNCIL,TYPE,MIDAS_NUM,whateveryouwanttocallUPDATEinstead Best Regards -- Corrado

Re: [GRASS-user] the area of a polygon?

:07:30 Corrado wrote: Dear friends, how do you measure the area of a polygon in grass? Best Regards Best Regards -- Corrado Topi Global Climate Change and Biodiversity Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0) 1904 328645, E-mail: [EMAIL PROTECTED

[GRASS-user] Error using v.in.ogr to load a shapefile: any clue?

):~ Best regards -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0) 1904 328645, E-mail: [EMAIL PROTECTED] ___ grass-user mailing list grass-user@lists.osgeo.org

[GRASS-user] Update - Check points in polygons

and the rgdal library. Any clue? I think when I wrote back to the project leader that the problem was solved, she as rather impressed by GRASS and by the GRASS community. Best Regards -- Corrado Topi Global Climate Change and Biodiversity Area 18,Department of Biology University of York, York, YO10

[GRASS-user] Re: Update - Check points in polygons

Dear John, I have used postgis to load a shapefile into the postgres database, by means of shp2pgsql. When I then start grass, how could I can connect to the databse, but I do not understand how to generate a vector map from the postgis table. Any help? Best Regards -- Corrado Topi Global

[GRASS-user] Further on Checking if a point (X, Y) is inside the, polygons of a shape file using command line

___ _ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ Best Regards -- Corrado Topi Global Climate Change

[GRASS-user] Using R to check points in polygons does not work

function call (arg 4). Is there another method to test if a point falls in any of the polygons without using R? or, is there a way to solve this problem? Best Regards -- Corrado Topi Global Climate Change and Biodiversity Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone

Re: [GRASS-user] Re: Using R to check points in polygons does not work

to solve it using ARCGIS. :( Best, On Tuesday 04 March 2008 18:33:26 Roger Bivand wrote: Corrado ct529 at york.ac.uk writes: Dear friends, I attempted to solve the problem using R, as Hamish suggested. Because there are some ring direction changes in the shape files, the conversion

[GRASS-user] Checking if a point (X, Y) is inside the polygons of a shape file using command line

like to substitute ArcGIS, that we are using now. Best regards -- Corrado Topi Global Climate Change Biodiversity Indicators Area 18,Department of Biology University of York, York, YO10 5YW, UK Phone: + 44 (0) 1904 328645, E-mail: [EMAIL PROTECTED