Le mardi 08 octobre 2013 00:26:45, Robert Zermeno a écrit : > Ladies/Gents, > > I have been using GeoPDF capability with 0.16.3 for a while and enjoy the > capabilities GDAL provides. I have wanted to add the capability to turn > Layers On/Off using the features provided. Lets assume I have a file > called world.pdf that contains more than 5 Layers with sub-layers. > > Project Configuration: > > GDAL_repos: 9-28-2013 > Poppler: version 0.16.3 > OS: Windows XP SP3 > Build: MSVC 2008 > > > Once built with the configuration above, I used the technique provided in > the frmt_pdf.html page using gdal_translate.exe to turn off 1 Layer: > > $ gdal_translate.exe c:\world.pdf out.tif --config GDAL_PDF_LAYERS_OFF > "Grids" > > I assume I used the proper request to only turn off "Grids" and allow all > other LAYERS "On". The problem I get is when it executes more layers are > turned "off" than the single layer specified. > > Here are my issues: > > 1. How do I request to output a file that turns off one or more Layers and > keeps the others on? > 2. According to the frmt_pdf.html, under the Configuration Options, > GDAL_PDF_LAYERS and GDAL_PDF_LAYERS_OFF both state "When this option is > specified, layers not explicitly listed will be turned off". > > I hope a quick copy & paste was performed...
Yes copy & paste error. The comment "When this option is specified, layers not explicitly listed will be turned off" only applies to GDAL_PDF_LAYERS One thing to remind is that some layers are turned off by default in PDF. So defining GDAL_PDF_LAYERS_OFF "Grids" will turn off "grids", but will let layers that defaulted to OFF as OFF. So if you want all layers but "Grids", you need to specify --config GDAL_PDF_LAYERS "ALL" as well. When both are defined, GDAL_PDF_LAYERS_OFF will override GDAL_PDF_LAYERS. > > 3. When I executed gdal_translate.exefrom the request above, I got the > following Error: > > ERROR 1: Could not find a OCG with Ref (13:0) > ERROR 1: Could not find a OCG with Ref (30:0) > ...repeats with different Ref() numbers > > ERROR 1: Could not find a OCG with Ref (153:0) > > This is a known Poppler issue as you can see here: > https://bugs.freedesktop.org/show_bug.cgi?id=39637 > > It states that the fix was added to Poppler version 0.17.2 >= > If that is true, the documentation (frmt_pdf.html) should indicate that. I > do not know if that is why my generated file is not correct as I do not > know what is effect by this recoverable error mentioned above. This is likely but impossible to be sure without verifying. > > > I have not added a ticket for GDAL before, where is the location I can add > future bugs if they arise? http://trac.osgeo.org/gdal/newticket Even -- Geospatial professional services http://even.rouault.free.fr/services.html _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
