ERROR 6: Unable to load PROJ.4 library (proj.dll)

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Nelson A. Cysneros Nelson A. Cysneros
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ERROR 6: Unable to load PROJ.4 library (proj.dll)

Getting this error when trying to run osgEarth with yahoo_aerial.earth.  
Not sure what PROJ.4 Library is.  Wondering if I forgot a dependency or something?

Thanks


ERROR:
---------------------------
osgviewerd yahoo_aerial.earth
ERROR 6: Unable to load PROJ.4 library (proj.dll), creation of
OGRCoordinateTransformation failed.
[osgEarth::SpatialReference] SRS xform not possible
    From => unnamed ellipse
    To   => Spherical Mercator
ERROR 6: Unable to load PROJ.4 library (proj.dll), creation of
OGRCoordinateTransformation failed.
[osgEarth::SpatialReference] SRS xform not possible
    From => Spherical Mercator
    To   => unnamed ellipse
[osgEarth::SpatialReference] SRS xform not possible
    From => Spherical Mercator
    To   => unnamed ellipse
[osgEarth] Warning, failed to transform an extent from Spherical Mercator to unn
amed ellipse
ERROR 6: Unable to load PROJ.4 library (proj.dll), creation of
OGRCoordinateTransformation failed.
jasonbeverage jasonbeverage
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Re: ERROR 6: Unable to load PROJ.4 library (proj.dll)

Hi Nelson,

PROJ.4 is a library that handles coordinate transformation in GDAL.  http://trac.osgeo.org/proj/

I didn't even realize it was possible to build GDAL without PROJ :)

On Windows I would really recommend just using the FWTools provided version of GDAL unless you have a reason to otherwise.  http://fwtools.maptools.org/

Thanks,

Jason

On Mon, Jul 20, 2009 at 6:23 PM, Nelson A. Cysneros (via Nabble) <[hidden email]> wrote:
Getting this error when trying to run osgEarth with yahoo_aerial.earth.  
Not sure what PROJ.4 Library is.  Wondering if I forgot a dependency or something?

Thanks


ERROR:
---------------------------
osgviewerd yahoo_aerial.earth
ERROR 6: Unable to load PROJ.4 library (proj.dll), creation of
OGRCoordinateTransformation failed.
[osgEarth::SpatialReference] SRS xform not possible
    From => unnamed ellipse
    To   => Spherical Mercator
ERROR 6: Unable to load PROJ.4 library (proj.dll), creation of
OGRCoordinateTransformation failed.
[osgEarth::SpatialReference] SRS xform not possible
    From => Spherical Mercator
    To   => unnamed ellipse
[osgEarth::SpatialReference] SRS xform not possible
    From => Spherical Mercator
    To   => unnamed ellipse
[osgEarth] Warning, failed to transform an extent from Spherical Mercator to unn
amed ellipse
ERROR 6: Unable to load PROJ.4 library (proj.dll), creation of
OGRCoordinateTransformation failed.



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Nelson A. Cysneros Nelson A. Cysneros
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Re: ERROR 6: Unable to load PROJ.4 library (proj.dll)

Thanks Jason,

That made it a lot easier.  Everything seems to be working now.  :)

Best Regards
Nelson A. Cysneros Nelson A. Cysneros
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Re: ERROR 6: Unable to load PROJ.4 library (proj.dll)

In reply to this post by jasonbeverage
Jason,

Does the GDAL provided by FWTools work with your debug version of osgEarth also?  I seem to be having problems with my debug version but it could be another library.

Thanks
Nelson
jasonbeverage jasonbeverage
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Re: ERROR 6: Unable to load PROJ.4 library (proj.dll)

Hi Nelson,

It should work just fine, what errors are you getting?

Thanks,

Jason

On Thu, Aug 13, 2009 at 12:49 PM, Nelson A. Cysneros (via Nabble) <[hidden email]> wrote:
Jason,

Does the GDAL provided by FWTools work with your debug version of osgEarth also?  I seem to be having problems with my debug version but it could be another library.

Thanks
Nelson


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Nelson A. Cysneros Nelson A. Cysneros
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Re: ERROR 6: Unable to load PROJ.4 library (proj.dll)

Thanks Jason, Just wanted to make sure GDAL did work with the debug version.  I did not notice my problem until I started using the FWTools gdal version.  Turns out it was the jpeg plugin and now everything is working great.  

Thanks again
Nelson