Re: [gdal-dev] gdal_rasterize 1.8.0 options
Hi Even, I'm not trying to re-ignite the stereo debate but I think there's more to the issue with the warning. I've realized that the particular EPSG code 3844 (not sure about others) is reported totally different by ogrinfo and gdalinfo. It's not the actual reporting that's wrong but the way -a_srs is applied by ogr2ogr versus gdal_translate. Below is an example: marius@mobi:~/data/romania/test$ gdalinfo RGB321-K-34-005.tif Driver: GTiff/GeoTIFF Files: RGB321-K-34-005.tif Size is 2985, 2775 Coordinate System is: PROJCS[Pulkovo 1942(58) / Stereo70, GEOGCS[Pulkovo 1942(58), DATUM[Pulkovo_1942_58, SPHEROID[Krassowsky 1940,6378245,298.29998, AUTHORITY[EPSG,7024]], AUTHORITY[EPSG,6179]], PRIMEM[Greenwich,0], UNIT[degree,0.0174532925199433], AUTHORITY[EPSG,4179]], PROJECTION[Oblique_Stereographic], PARAMETER[latitude_of_origin,46], PARAMETER[central_meridian,25], PARAMETER[scale_factor,0.99975], PARAMETER[false_easting,50], PARAMETER[false_northing,50], UNIT[metre,1, AUTHORITY[EPSG,9001]], AUTHORITY[EPSG,3844]] Origin = (96676.434833699619048,290247.117718913941644) Pixel Size = (14.256214353408733,-14.256214353408733) ... marius@mobi:~/data/romania/test$ ogrinfo -where 'FID=0' -geom=summary -fields=no ../caroiaje/caroiaje_100k_EPSG3844.shp caroiaje_100k_EPSG3844 INFO: Open of `../caroiaje/caroiaje_100k_EPSG3844.shp' using driver `ESRI Shapefile' successful. Layer name: caroiaje_100k_EPSG3844 Geometry: Polygon Feature Count: 1 Extent: (94505.736838, 203681.624680) - (905494.263162, 771251.195001) Layer SRS WKT: PROJCS[Stereographic, GEOGCS[GCS_Krassovsky, 1942, DATUM[unknown, SPHEROID[krass,6378245,298.3]], PRIMEM[Greenwich,0], UNIT[Degree,0.017453292519943295]], PROJECTION[Stereographic], PARAMETER[latitude_of_origin,46], PARAMETER[central_meridian,25], PARAMETER[scale_factor,0.99975], PARAMETER[false_easting,50], PARAMETER[false_northing,50], UNIT[Meter,1]] INDICATIV: String (25.0) OGRFeature(caroiaje_100k_EPSG3844):0 POLYGON : 65 points Is the disconnect simply a reporting issue and reprojections are handled properly behind the scenes when using this EPSG code? It seems that what gdalinfo reports is in accordance to http://spatialreference.org/ref/epsg/3844/html/ . -marius On Sat, 2011-02-05 at 00:06 +0100, Even Rouault wrote: Le vendredi 04 février 2011 20:25:43, Marius Jigmond a écrit : Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. Unrelated with GDAL 1.8.0. The issue was that the transformation between OGC WKT and ESRI WKT didn't handle well the Oblique Stereographic projection. Fixed in trunk in http://trac.osgeo.org/gdal/changeset/21627 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? When those 2 new options are used, they imply creating a new dataset. So they actually need to be used with -tr or -ts option. -marius ___ 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] gdal_rasterize 1.8.0 options
Le dimanche 20 février 2011 00:24:16, Marius Jigmond a écrit : Is the disconnect simply a reporting issue and reprojections are handled properly behind the scenes when using this EPSG code? It seems that what gdalinfo reports is in accordance to http://spatialreference.org/ref/epsg/3844/html/ . Marius, The .prj file of shapefiles stores WKT in ESRI WKT, not OGC WKT. http://trac.osgeo.org/gdal/changeset/21627 (which is a fix not found in 1.8.0) translates the ESRI Stereographic into the OGC Oblique_Stereographic, to be consistant with what is done in the reverse transformation -marius On Sat, 2011-02-05 at 00:06 +0100, Even Rouault wrote: Le vendredi 04 février 2011 20:25:43, Marius Jigmond a écrit : Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. Unrelated with GDAL 1.8.0. The issue was that the transformation between OGC WKT and ESRI WKT didn't handle well the Oblique Stereographic projection. Fixed in trunk in http://trac.osgeo.org/gdal/changeset/21627 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? When those 2 new options are used, they imply creating a new dataset. So they actually need to be used with -tr or -ts option. -marius ___ 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] gdal_rasterize 1.8.0 options
Should it then match http://spatialreference.org/ref/epsg/3844/esriwkt/ because it does not seem to? I apologize if my questions seem silly. -marius On Sun, 2011-02-20 at 00:38 +0100, Even Rouault wrote: Le dimanche 20 février 2011 00:24:16, Marius Jigmond a écrit : Is the disconnect simply a reporting issue and reprojections are handled properly behind the scenes when using this EPSG code? It seems that what gdalinfo reports is in accordance to http://spatialreference.org/ref/epsg/3844/html/ . Marius, The .prj file of shapefiles stores WKT in ESRI WKT, not OGC WKT. http://trac.osgeo.org/gdal/changeset/21627 (which is a fix not found in 1.8.0) translates the ESRI Stereographic into the OGC Oblique_Stereographic, to be consistant with what is done in the reverse transformation -marius On Sat, 2011-02-05 at 00:06 +0100, Even Rouault wrote: Le vendredi 04 février 2011 20:25:43, Marius Jigmond a écrit : Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. Unrelated with GDAL 1.8.0. The issue was that the transformation between OGC WKT and ESRI WKT didn't handle well the Oblique Stereographic projection. Fixed in trunk in http://trac.osgeo.org/gdal/changeset/21627 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? When those 2 new options are used, they imply creating a new dataset. So they actually need to be used with -tr or -ts option. -marius ___ 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] gdal_rasterize 1.8.0 options
Le dimanche 20 février 2011 00:46:07, Marius Jigmond a écrit : Should it then match http://spatialreference.org/ref/epsg/3844/esriwkt/ because it does not seem to? I apologize if my questions seem silly. With all respect due to the great job of that site, I'm not sure you can blindly trust spatialreference.org to be always a genuine reference (I'm not sure that in the world of SRS, there is *a* reference ...). The data in there comes from the output of various software packages, including GDAL or GeoTools, that might not be the most recent ones and have some bugs. This WKT with the space in Oblique_Stereographic is likely coming from GeoTools. See http://www.osgeo.org/pipermail/metacrs/2008-December/000187.html that gives some hint on where data of spatialreference.org comes from. Anyway, with latest GDAL trunk, if I do a ogr2ogr -a_srs EPSG:3844 foo_3844.shp foo.shp, foo_3844.prj is : PROJCS[Pulkovo_1942_58_Stereo70,GEOGCS[GCS_Pulkovo 1942(58),DATUM[D_Pulkovo_1942_Adj_1958,SPHEROID[Krassowsky_1940,6378245,298.3]],PRIMEM[Greenwich,0],UNIT[Degree,0.017453292519943295]],PROJECTION[Stereographic],PARAMETER[latitude_of_origin,46],PARAMETER[central_meridian,25],PARAMETER[scale_factor,0.99975],PARAMETER[false_easting,50],PARAMETER[false_northing,50],UNIT[Meter,1]] And ogrinfo reads it back as : PROJCS[Pulkovo_1942_58_Stereo70, GEOGCS[GCS_Pulkovo 1942(58), DATUM[Pulkovo_1942_58, SPHEROID[Krassowsky_1940,6378245,298.3]], PRIMEM[Greenwich,0], UNIT[Degree,0.017453292519943295]], PROJECTION[Oblique_Stereographic], PARAMETER[latitude_of_origin,46], PARAMETER[central_meridian,25], PARAMETER[scale_factor,0.99975], PARAMETER[false_easting,50], PARAMETER[false_northing,50], UNIT[Meter,1]] which is nearly identical to the output of gdalinfo (except that the ESRI'fication loses the AUTHORITY nodes) -marius On Sun, 2011-02-20 at 00:38 +0100, Even Rouault wrote: Le dimanche 20 février 2011 00:24:16, Marius Jigmond a écrit : Is the disconnect simply a reporting issue and reprojections are handled properly behind the scenes when using this EPSG code? It seems that what gdalinfo reports is in accordance to http://spatialreference.org/ref/epsg/3844/html/ . Marius, The .prj file of shapefiles stores WKT in ESRI WKT, not OGC WKT. http://trac.osgeo.org/gdal/changeset/21627 (which is a fix not found in 1.8.0) translates the ESRI Stereographic into the OGC Oblique_Stereographic, to be consistant with what is done in the reverse transformation -marius On Sat, 2011-02-05 at 00:06 +0100, Even Rouault wrote: Le vendredi 04 février 2011 20:25:43, Marius Jigmond a écrit : Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. Unrelated with GDAL 1.8.0. The issue was that the transformation between OGC WKT and ESRI WKT didn't handle well the Oblique Stereographic projection. Fixed in trunk in http://trac.osgeo.org/gdal/changeset/21627 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? When those 2 new options are used, they imply creating a new dataset. So they actually need to be used with -tr or -ts option. -marius ___ 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] gdal_rasterize 1.8.0 options
Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? -marius ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] gdal_rasterize 1.8.0 options
Eli, Both input datasets (mask and raster) exist, which is why 1. works. Option 1 doesn't use any of version 1.8.0 flags, which is why I thought something else was introduced behind the scenes with the new flags. -marius On Fri, 2011-02-04 at 12:08 -0800, Eli Adam wrote: Marius, I don't know about 1. but possibilities for 2. and 3 below. Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? Does sample.tif exist? If not, the docs say you need to use -tr or -ts, Since GDAL 1.8.0, the target GDAL file can be created by gdal_rasterize. One of -tr or -ts option must be used in that case. I don't know why that error would not also come from 1. Bests, Eli -marius ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] gdal_rasterize 1.8.0 options
Marius, I don't know about 1. but possibilities for 2. and 3 below. Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? Does sample.tif exist? If not, the docs say you need to use -tr or -ts, Since GDAL 1.8.0, the target GDAL file can be created by gdal_rasterize. One of -tr or -ts option must be used in that case. I don't know why that error would not also come from 1. Bests, Eli -marius ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] gdal_rasterize 1.8.0 options
On Sat, 2011-02-05 at 00:06 +0100, Even Rouault wrote: Le vendredi 04 février 2011 20:25:43, Marius Jigmond a écrit : Hi Everyone, Some of the options (I didn't test all) introduced with version 1.8.0 seem to behave strangely. Here's what I'm doing: 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif works fine but I get the following warning: Warning : the output raster dataset and the input vector layer do not have the same SRS. Results might be incorrect (no on-the-fly reprojection of input data). even though both inputs use the same projection, EPSG:3844. Unrelated with GDAL 1.8.0. The issue was that the transformation between OGC WKT and ESRI WKT didn't handle well the Oblique Stereographic projection. Fixed in trunk in http://trac.osgeo.org/gdal/changeset/21627 Thanks. 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif fails with: '-tr xres yes' or '-ts xsize ysize' is required. From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs or -a_nodata would require -tr or -ts. Am I doing something wrong? When those 2 new options are used, they imply creating a new dataset. So they actually need to be used with -tr or -ts option. Thanks for the clarification as it's not apparent from the web page. Would have loved the -a_nodata to be available for existing datasets. -marius ___ 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
