[Gdal-dev] Can GDal uses a libtiff.dll and libgeotiff.dll

[Steve Brooks]

Frank,

 

   I have been trying to add GDal to one of my programs that already was

using libtiff and libgeotiff as DLLs.  I'm also trying to integrate the
Kakadu

library to output a geo- reference  jp2 file using the driver you wrote
as an example.

I have the jp2 file working without the geo-reference.  

 

Per a previous message stating that the Kakadu library wasn't setup to
support

IWriteBlock, I have been taking parts of the CreateCopy code to do the
geo-reference, i.e.

JP2KAKWriteGeoTIFFInfo( jp2_target jp2_out, GDALDataset *poSrcDS );

 

Now my input can be one or more images at different scales and
rotations.  I already 

have this part done, so that it can extract the output image at a
different scale, format,

and rotation. 

 

This is an example of the geotiff reference with (tiepoints), and the
following attributes

GTModelTypeGeoKey = ModelTypeProjected, 

GeographicTypeGeoKey  example value = 4269, 

GeogCitationGeoKey example value = "Iowa South", 

ProjectedCSTypeGeoKey example value = 26976,

PCSCitationGeoKey  example value = "NAD83",

ProjLinearUnitsGeoKey example value = Linear_Foot

 

Now since I didn't have the GDALDataset from the input I have been
searching through

GDAL trying to figure out a good way of getting the dataset with the
geotiff reference 

above.  The easiest way I could see was to create an empty tiff file
with the geotiff in

it and then use GDALOpen on that file. 

 

Well I did this and I ran into problems with having a libtiff dll linked
into my original

project and the libtiff the GDAL has statically linked to the
GDALL11.dll.

In creating the dummy tiff file I have to use TIFFSetField from the
libtiff.dll and

when XTIFFClose is called it tries to free memory that was allocated by
the libtiff.dll

and crashes.

 

A solution for this problem would be to have gdal11.dll to link with an
external libtiff.dll

and an external geotiff.dll.  But, before I tried this I wanted to know
if you knew any

problems before starting this.  Also, is this a proper use of gdal in
having different

end developer configurations?

 

Thanks

Steve Brooks

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/gdal-dev/attachments/20030113/5f9cd7c5/attachment.html