My objective is to make a KML ground overlay with a geospatial PDF map.<br><br>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:<br>
<br><pre><LatLonBox><br> <north>37.91904192681665</north><br> <south>37.46543388598137</south><br> <east>15.35832653742206</east><br> <west>14.60128369746704</west><br>
<rotation>-0.1556640799496235</rotation><br> </LatLonBox></pre><br>As GDAL's output, I saw that the entire PDF with legend, title, etc and not just the map image was converted.<br><br>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?<br>
<br><font style="font-family: courier new,monospace;" size="1">Corner Coordinates:<br>Upper Left ( 666937.758, 2024687.983) <br>Lower Left ( 666991.811, 2018338.153) <br>Upper Right ( 674511.276, 2024754.795) <br>Lower Right ( 674565.328, 2018404.965) <br>
Center ( 670751.543, 2021546.474) </font><br><font size="1"><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"><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></span></font><br>
<br>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.<br><br>But I am unsure if I need to extract the map image from the jpeg using the NEATLINE?<br>
How are the Corner Coordinates translated into a bounding box?<br><br>Any suggestions? <br>