Re: [gdal-dev] Mask and GEOTiff
Alessandro, You can combine the tiff and the mask using GDAL's VRT format or by using the -separate option in gdal_merge.py script. The extra band should be set as a nodata mask or alpha band. http://www.gdal.org/gdal_vrttut.html http://www.gdal.org/gdalbuildvrt.html http://www.gdal.org/gdal_merge.html On Thu, Apr 28, 2011 at 1:00 PM, canduc17 cand...@meeo.it wrote: Hi everyone. Is there a way to crop a GEOTiff image using a Mask of the same dimension? For example, a mask with a filled circle: every pixel inside the circle is 1 and the others are 0. I would like to obtain a new GEOTiff with only the pixel inside the circle visible and the other set to 0. Is that possible with tools like gdal_translate or other ones? Thanks in advance! -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Mask-and-GEOTiff-tp6312284p6312284.html Sent from the GDAL - Dev mailing list archive at Nabble.com. ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev -- Best regards, Chaitanya kumar CH. /tʃaɪθənjə/ /kʊmɑr/ +91-9494447584 17.2416N 80.1426E ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
[gdal-dev] Re: Mask and GEOTiff
I think gdal merge is the easier way. But with a command like this: gdal_merge.py -of GTiff -separate -o cropped.tif orig.tif mask.tif I obtainn a GEOTiff with two bands: the first is the original image and the second is the mask. This is not what I want. I would like to obtain a single band GEOTiff with visible only the pixels of original image filtered by the mask. Is that possible with a further passage or with another tool? -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Mask-and-GEOTiff-tp6312284p6312590.html Sent from the GDAL - Dev mailing list archive at Nabble.com. ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
[gdal-dev] Re: Cropping raster by vector files
Ok. But if I have a separate shapefile (.shp) and a GEOTiff image, which command line tool can I use to obtain the first image of your howto? -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Cropping-raster-by-vector-files-tp5271977p6312752.html Sent from the GDAL - Dev mailing list archive at Nabble.com. ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] gdalwarp vertical datum shift question
On 11-04-27 02:42 PM, Mark Warren wrote: So before we go down this route too far (since a lot of changes may be needed to the code) - does anyone think that this is a feasible idea or have any other suggestions (other than using a GIS :) )? Mark, Honestly, I think it would be better to implement a distinct utility that applies vertical datum offsets rather than to incorporate it into gdalwarp. I suspect it will significantly complicate the gdalwarp code to have vertical offsets mixed in to all the interpolation code - assuming you are ultimately hoping for something suitable to incorporate back into the core. Best regards, -- ---+-- I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush| Geospatial Programmer for Rent ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] nearblack troubles [SEC=UNCLASSIFIED]
Worked for me using the following: #Change black to white gdalbuildvrt -srcnodata 0 -vrtnodata 255 to-be-decollared.vrt to-be-decollared.tif #Run nearblack -white nearblack -white -o decollared.tif to-be-decollared.vrt Luke, once again I thank you. :) matt wilkie Geomatics Analyst Information Management and Technology Yukon Department of Environment 10 Burns Road * Whitehorse, Yukon * Y1A 4Y9 867-667-8133 Tel * 867-393-7003 Fax http://environmentyukon.gov.yk.ca/geomatics/ ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] Re: Mask and GEOTiff
You could run gdal_polygonize on the mask geotiff and then use the output vector with gdal_rasterize. That's the only way I can think of without writing a python script to do the pixel comparisons. Jamie On Thu, Apr 28, 2011 at 2:30 AM, canduc17 cand...@meeo.it wrote: I think gdal merge is the easier way. But with a command like this: gdal_merge.py -of GTiff -separate -o cropped.tif orig.tif mask.tif I obtainn a GEOTiff with two bands: the first is the original image and the second is the mask. This is not what I want. I would like to obtain a single band GEOTiff with visible only the pixels of original image filtered by the mask. Is that possible with a further passage or with another tool? -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Mask-and-GEOTiff-tp6312284p6312590.html Sent from the GDAL - Dev mailing list archive at Nabble.com. ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] nearblack troubles [SEC=UNCLASSIFIED]
Le jeudi 28 avril 2011 17:49:48, Matt Wilkie a écrit : Worked for me using the following: #Change black to white gdalbuildvrt -srcnodata 0 -vrtnodata 255 to-be-decollared.vrt to-be-decollared.tif #Run nearblack -white nearblack -white -o decollared.tif to-be-decollared.vrt Luke, once again I thank you. :) There's one thing you must be aware of with the above process. The gdalbuildvrt step will replace all 0 values by 255, but band per band, to be opposite to detecting the triplet (0,0,0). So this might alter colors that have least one component to 0 inside the raster. matt wilkie Geomatics Analyst Information Management and Technology Yukon Department of Environment 10 Burns Road * Whitehorse, Yukon * Y1A 4Y9 867-667-8133 Tel * 867-393-7003 Fax http://environmentyukon.gov.yk.ca/geomatics/ ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] FGDB Opening Sample File
Le jeudi 28 avril 2011 02:11:30, Paul Ramsey a écrit : I assume the failures are relationships we don't handle yet (or ever and will need to be silenced). Not sure what those relations things are. There is a test file in the FGDB API itself, and it fails to open entirely, which seems odd, [pramsey@localhost data]$ ogrinfo ./TestData.gdb ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 FAILURE: Unable to open datasource `./TestData.gdb' with the following drivers. Do other folks have trouble opening the ESRI sample file? The error code doesn't make much sense, it is supposed to mean If the path is seriously in error, say pointing to the wrong drive, a -2147467259 (E_FAIL) error is returned and relates to the CreateGeodatabase method, not the OpenGeodatabase method. Yes I did notice that issue too. I assume either the example is corrupted, either it is a bug in the FileGDB API, either... Perhaps reporting to ESRI might be usefull. Or perhaps Ragi has some clues. Even ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] FGDB Opening Sample File
Relations are joins to non-spatial tables containing domain values etc. They are relational tables. Mike -- Michael Smith Remote Sensing/GIS Center US Army Corps of Engineers On 4/28/11 1:19 PM, Even Rouault even.roua...@mines-paris.org wrote: Le jeudi 28 avril 2011 02:11:30, Paul Ramsey a écrit : I assume the failures are relationships we don't handle yet (or ever and will need to be silenced). Not sure what those relations things are. There is a test file in the FGDB API itself, and it fails to open entirely, which seems odd, [pramsey@localhost data]$ ogrinfo ./TestData.gdb ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 FAILURE: Unable to open datasource `./TestData.gdb' with the following drivers. Do other folks have trouble opening the ESRI sample file? The error code doesn't make much sense, it is supposed to mean If the path is seriously in error, say pointing to the wrong drive, a -2147467259 (E_FAIL) error is returned and relates to the CreateGeodatabase method, not the OpenGeodatabase method. Yes I did notice that issue too. I assume either the example is corrupted, either it is a bug in the FileGDB API, either... Perhaps reporting to ESRI might be usefull. Or perhaps Ragi has some clues. Even ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] FGDB Opening Sample File
Are they tables or links between tables? I can see this is going to be a hard project to do without ArcGIS handy :) P. On Thu, Apr 28, 2011 at 10:26 AM, Smith, Michael ERDC-CRREL-NH michael.sm...@usace.army.mil wrote: Relations are joins to non-spatial tables containing domain values etc. They are relational tables. Mike -- Michael Smith Remote Sensing/GIS Center US Army Corps of Engineers On 4/28/11 1:19 PM, Even Rouault even.roua...@mines-paris.org wrote: Le jeudi 28 avril 2011 02:11:30, Paul Ramsey a écrit : I assume the failures are relationships we don't handle yet (or ever and will need to be silenced). Not sure what those relations things are. There is a test file in the FGDB API itself, and it fails to open entirely, which seems odd, [pramsey@localhost data]$ ogrinfo ./TestData.gdb ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 FAILURE: Unable to open datasource `./TestData.gdb' with the following drivers. Do other folks have trouble opening the ESRI sample file? The error code doesn't make much sense, it is supposed to mean If the path is seriously in error, say pointing to the wrong drive, a -2147467259 (E_FAIL) error is returned and relates to the CreateGeodatabase method, not the OpenGeodatabase method. Yes I did notice that issue too. I assume either the example is corrupted, either it is a bug in the FileGDB API, either... Perhaps reporting to ESRI might be usefull. Or perhaps Ragi has some clues. Even ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
RE: [gdal-dev] FGDB Opening Sample File
FWIW, the error code -2147467259 is probably a Microsoft HRESULT. In hex, it is 0x80004005, which is a generic access is denied error. Not that this is much of a clue about what is going on. You could check for some kind of permissions or access problem... Jason -Original Message- From: gdal-dev-boun...@lists.osgeo.org [mailto:gdal-dev-boun...@lists.osgeo.org] On Behalf Of Paul Ramsey Sent: Thursday, April 28, 2011 5:31 PM To: Smith, Michael ERDC-CRREL-NH Cc: gdal-dev@lists.osgeo.org Subject: Re: [gdal-dev] FGDB Opening Sample File Are they tables or links between tables? I can see this is going to be a hard project to do without ArcGIS handy :) P. On Thu, Apr 28, 2011 at 10:26 AM, Smith, Michael ERDC-CRREL-NH michael.sm...@usace.army.mil wrote: Relations are joins to non-spatial tables containing domain values etc. They are relational tables. Mike -- Michael Smith Remote Sensing/GIS Center US Army Corps of Engineers On 4/28/11 1:19 PM, Even Rouault even.roua...@mines-paris.org wrote: Le jeudi 28 avril 2011 02:11:30, Paul Ramsey a écrit : I assume the failures are relationships we don't handle yet (or ever and will need to be silenced). Not sure what those relations things are. There is a test file in the FGDB API itself, and it fails to open entirely, which seems odd, [pramsey@localhost data]$ ogrinfo ./TestData.gdb ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 FAILURE: Unable to open datasource `./TestData.gdb' with the following drivers. Do other folks have trouble opening the ESRI sample file? The error code doesn't make much sense, it is supposed to mean If the path is seriously in error, say pointing to the wrong drive, a -2147467259 (E_FAIL) error is returned and relates to the CreateGeodatabase method, not the OpenGeodatabase method. Yes I did notice that issue too. I assume either the example is corrupted, either it is a bug in the FileGDB API, either... Perhaps reporting to ESRI might be usefull. Or perhaps Ragi has some clues. Even ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] Mask and GEOTiff
In QGIS you can use Raster Calculator to multiply the rasters. -marius On Thu, 2011-04-28 at 00:30 -0700, canduc17 wrote: Hi everyone. Is there a way to crop a GEOTiff image using a Mask of the same dimension? For example, a mask with a filled circle: every pixel inside the circle is 1 and the others are 0. I would like to obtain a new GEOTiff with only the pixel inside the circle visible and the other set to 0. Is that possible with tools like gdal_translate or other ones? Thanks in advance! -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Mask-and-GEOTiff-tp6312284p6312284.html Sent from the GDAL - Dev mailing list archive at Nabble.com. ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] FGDB Opening Sample File
They are links between tables. Usually, between the attribute table of a feature class and a simple (non-spatial, as Mike said) table. But you can relate any kind of attribute tables. -marius On Thu, 2011-04-28 at 14:30 -0700, Paul Ramsey wrote: Are they tables or links between tables? I can see this is going to be a hard project to do without ArcGIS handy :) P. On Thu, Apr 28, 2011 at 10:26 AM, Smith, Michael ERDC-CRREL-NH michael.sm...@usace.army.mil wrote: Relations are joins to non-spatial tables containing domain values etc. They are relational tables. Mike -- Michael Smith Remote Sensing/GIS Center US Army Corps of Engineers On 4/28/11 1:19 PM, Even Rouault even.roua...@mines-paris.org wrote: Le jeudi 28 avril 2011 02:11:30, Paul Ramsey a écrit : I assume the failures are relationships we don't handle yet (or ever and will need to be silenced). Not sure what those relations things are. There is a test file in the FGDB API itself, and it fails to open entirely, which seems odd, [pramsey@localhost data]$ ogrinfo ./TestData.gdb ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 ERROR 1: GDB Error: Failed to open Geodatabase long:-2147467259 FAILURE: Unable to open datasource `./TestData.gdb' with the following drivers. Do other folks have trouble opening the ESRI sample file? The error code doesn't make much sense, it is supposed to mean If the path is seriously in error, say pointing to the wrong drive, a -2147467259 (E_FAIL) error is returned and relates to the CreateGeodatabase method, not the OpenGeodatabase method. Yes I did notice that issue too. I assume either the example is corrupted, either it is a bug in the FileGDB API, either... Perhaps reporting to ESRI might be usefull. Or perhaps Ragi has some clues. Even ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
