[Qgis-user] Raster clipping Error "Currently GMT export only supports 1 band datasets"
QGIS 2.14.8 MacOSX Sierra 10.12.2 MacBook Pro (Retina 13 pouces, début 2015) Hello, Trying to clip a small portion of a raster (either JP2 or Tiff) I get this error message : ERROR 1: Currently GMT export only supports 1 band datasets. And of course the clipping isn't done (not even in 1 band). Is there anything I can do, change some parameter for example ? Thanks Vincent ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] raster clipping
Hi all, I need some clarifications on how raster clipper algorithm works with not georeferenced images. My tiff data present negative y coordinates, so when I select my area of interest in the viewer, the x-y upper left / lower right points are, for instance: ulx: 2818.33065257 uly: -5304.31204044 lrx: 3223.66153493 lry:-5825.45174632 Original image is 1 x 6191 pixel the Clipper plugin does not understand that data are not georeferenced, so running command: gdal_translate -projwin 2818.33065257 -5304.31204044 3223.66153493 -5825.45174632 C:\Dati_Utente\f.mure\work\UTILITY\DATA\Pleiades_Primary_Product_Bundle\Pleiades_Primary_Product_Bundle.tiff you got an error (Computed -srcwin falls outside raster size of 1x6191. ). if you run gdal_traslate with -srcwin option you have to change input parameters to express xoffset, yoffsset, xsize, ysize, instead of ulx uly lrx lry. In my example, xoff = 2818 yoff = 6191 - 5304 xsize = 500 ysize = 500 And finally, gdal_translate -srcjwin 2818 794 500 500 C:\Dati_Utente\f.mure\work\UTILITY\DATA\Pleiades_Primary_Product_Bundle\Pleiades_Primary_Product_Bundle.tiff works fine. Now my doubts/questions are: - is there a way to switch automatically between [-projwin ulx uly lrx lry] to [-srcwin xoff yoff xsize ysize] gdal_translate options, depending on data projections (georefenced or not). - is it possible to get extracted sub-image overlapped with the selected area on the original image? Could anyone give me some help? Thanks in advance, Fabrizio ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Raster Clipping
Hi all, I am new user of QGIS. Sorry if my question is basic. I would like to clip a raster (.jpg) using a vector layer. I used the Gdal clipper but I got an error msg: Cannot compute bounding box of cutline. Any suggestion? Thanks, Ibrahimi From: Lene Fischer l...@life.ku.dk To: qgis-user@lists.osgeo.org qgis-user@lists.osgeo.org Sent: Saturday, April 6, 2013 12:44 PM Subject: [Qgis-user] Sextante -Using FToolfunction Hi Using both QGIS 1.8 and 1.9 I´m trying to use Tools for Lidar LASTools Getting an error : Could not load model watersheds.model ALGORITHM:ftools:export/addgeometrycolumns The algorithm from FTools are now placed in QGIS Geoalgorithms - How / Where can I change the path? Regards Lene Fischer ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Raster Clipping
Hi Khaled, On Sat, Apr 6, 2013 at 4:43 PM, Khaled Ibrahimi ibrahimikha...@yahoo.comwrote: I would like to clip a raster (.jpg) using a vector layer. I used the Gdal clipper but I got an error msg: Cannot compute bounding box of cutline. Any suggestion? I think the raster and vector layer both need to be in the same projection (CRS). If that's already the case, you can try the suggestion at this link, and see if it works for you: http://gis.stackexchange.com/questions/32394/rasterfile-clipping-error-cannot-compute-bounding-box-of-cutline Kind regards, Rudi ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Raster Clipping
Thanks Rudi, I still have the same problem. I tried the Raster-Projections-Warp on my Raster but I got the msg: ERROR 1: Unable to compute a transformation between pixel/line and georeferenced coordinates for. Thanks Ibrahimi From: Rudi von Staden rud...@gmail.com To: Khaled Ibrahimi ibrahimikha...@yahoo.com Cc: qgis-user@lists.osgeo.org qgis-user@lists.osgeo.org Sent: Saturday, April 6, 2013 5:25 PM Subject: Re: [Qgis-user] Raster Clipping Hi Khaled, On Sat, Apr 6, 2013 at 4:43 PM, Khaled Ibrahimi ibrahimikha...@yahoo.com wrote: I would like to clip a raster (.jpg) using a vector layer. I used the Gdal clipper but I got an error msg: Cannot compute bounding box of cutline. Any suggestion? I think the raster and vector layer both need to be in the same projection (CRS). If that's already the case, you can try the suggestion at this link, and see if it works for you: http://gis.stackexchange.com/questions/32394/rasterfile-clipping-error-cannot-compute-bounding-box-of-cutline Kind regards, Rudi___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Raster Clipping
Hi Khaled, On Sat, Apr 6, 2013 at 9:18 PM, Khaled Ibrahimi ibrahimikha...@yahoo.comwrote: I still have the same problem. I tried the *Raster-Projections-Warp *on my Raster but I got the msg*: *ERROR 1: Unable to compute a transformation between pixel/line and georeferenced coordinates for. It sounds like your raster may not be georeferenced. Does it display in QGIS when you load it as a raster? Does it align with the vector you are cutting it with? From the command line, you can use gdalinfo to see if there's a coordinate system defined. If you run 'gdalinfo filename.jpg' (from the same directory as the file), the resulting output should include something like this if it's georeferenced: Coordinate System is: GEOGCS[WGS 84, DATUM[WGS_1984, SPHEROID[WGS 84,6378137,298.257223563, AUTHORITY[EPSG,7030]], AUTHORITY[EPSG,6326]], PRIMEM[Greenwich,0], UNIT[degree,0.0174532925199433], AUTHORITY[EPSG,4326]] if it isn't, you'll see something like this: Coordinate System is `' If it's not georeferenced, you can georeference it using the Georeferencer plugin (there's a useful tutorial here: http://glaikit.org/2011/03/27/image-georeferencing-with-qgis/). Hope this helps, Rudi ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Raster Clipping
Hi Rudi, Thanks a lot. It is working now eventhough the resulting clipped raster has a poor quality compared to the origin. Best regards, Khaled From: Rudi von Staden rud...@gmail.com To: Khaled Ibrahimi ibrahimikha...@yahoo.com Cc: qgis-user@lists.osgeo.org qgis-user@lists.osgeo.org Sent: Saturday, April 6, 2013 9:46 PM Subject: Re: [Qgis-user] Raster Clipping Hi Khaled, On Sat, Apr 6, 2013 at 9:18 PM, Khaled Ibrahimi ibrahimikha...@yahoo.com wrote: I still have the same problem. I tried the Raster-Projections-Warp on my Raster but I got the msg: ERROR 1: Unable to compute a transformation between pixel/line and georeferenced coordinates for. It sounds like your raster may not be georeferenced. Does it display in QGIS when you load it as a raster? Does it align with the vector you are cutting it with? From the command line, you can use gdalinfo to see if there's a coordinate system defined. If you run 'gdalinfo filename.jpg' (from the same directory as the file), the resulting output should include something like this if it's georeferenced: Coordinate System is: GEOGCS[WGS 84, DATUM[WGS_1984, SPHEROID[WGS 84,6378137,298.257223563, AUTHORITY[EPSG,7030]], AUTHORITY[EPSG,6326]], PRIMEM[Greenwich,0], UNIT[degree,0.0174532925199433], AUTHORITY[EPSG,4326]] if it isn't, you'll see something like this: Coordinate System is `' If it's not georeferenced, you can georeference it using the Georeferencer plugin (there's a useful tutorial here: http://glaikit.org/2011/03/27/image-georeferencing-with-qgis/). Hope this helps, Rudi___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
