Thanks -- but I believe the problem is I didnt install PROJ when installing GDAL from SVN source
On Thu, Oct 21, 2010 at 5:56 PM, Eli Adam <[email protected]> wrote: > Boris, > > Did you try something like: > > gdalwarp -t_srs "EPSG:4326" in.jpg out.jpg > > or > > gdalwarp -t_srs 'EPSG:4326' in.jpg out.jpg > > > HTH, Eli > > >>> Boris Dev <[email protected]> 10/20/2010 2:28 PM >>> > thanks..I am almost there...I think I am making a simple usage typo? > > gdalwarp without the option '-t_srs EPSG:4326' works OK. > > But it doesnt work with the command written exactly as you have it > > > > > gdalwarp -t_srs EPSG:4326 in.jpg out.jpg > > > > > After that command, I do not get anything processed (it just outputs to the > screen the usage info). > > I also had no luck with trying different variations of the -t_srs option > such as > > gdalwarp -t_srs "+proj=EPSG:4326" in.jpg out.jpg > > I am using the most recent SVN GDAL. > > > > > then use gdalinfo to get the corner coordinates. > > > > Currently the entire page of the PDF is rendered into the image. > Perhaps > > we can convince Even to add an option to convert only the mapped area (or > > mask everything else?) > > > > Best Regards, > > Brent Fraser > > > > > > On 10/20/2010 8:07 AM, Boris Dev wrote: > > > > My objective is to make a KML ground overlay with a geospatial PDF map. > > > > Using GDAL's translate utility I have converted the PDF to a JPEG. The > next > > step and problem for me is to write the text of the KML ground overlay, > > which requires a text of bounding box information like this: > > > > <LatLonBox> > > <north>37.91904192681665</north> > > <south>37.46543388598137</south> > > <east>15.35832653742206</east> > > <west>14.60128369746704</west> > > > > > > <rotation>-0.1556640799496235</rotation> > > </LatLonBox> > > > > > > As GDAL's output, I saw that the entire PDF with legend, title, etc and > not > > just the map image was converted. > > > > As GDAL's output, I also saw 2 parts of data that seem they are useful to > > match a bounding box to the map within the jpeg, but I cant figure out > the > > puzzle of how to make this work? Can I get the bounding box of the entire > > PDF image with this information below? > > > > Corner Coordinates: > > Upper Left ( 666937.758, 2024687.983) > > Lower Left ( 666991.811, 2018338.153) > > Upper Right ( 674511.276, 2024754.795) > > Lower Right ( 674565.328, 2018404.965) > > Center ( 670751.543, 2021546.474) > > > > <MDI key="NEATLINE">POLYGON ((672676.488065659650601 > > 2019417.955749646294862,672636.091432046378031 > > 2024030.267778463661671,667347.405745737953112 > > 2023983.612156898481771,667385.539170471020043 > > 2019370.524140953086317,672676.488065659650601 > > 2019417.955749646294862,672676.488065659650601 > > 2019417.955749646294862,672676.488065659650601 > > 2019417.955749646294862,672676.488065659650601 > > 2019417.955749646294862))</MDI> > > > > I realize the coordinate above need to be converted to lat/long to be a > KML > > ground overlay onto Google Maps, which I think I can handle. > > > > But I am unsure if I need to extract the map image from the jpeg using > the > > NEATLINE? > > How are the Corner Coordinates translated into a bounding box? > > > > Any suggestions? > > > > > > _______________________________________________ > > gdal-dev mailing [email protected]:// > lists.osgeo.org/mailman/listinfo/gdal-dev > > > > > >
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