[Gdal-dev] Problem creating MapInfo tab files using C# (via the C API)

[Richard Matsunaga]

After hours of struggling to compile in Visual Studio 2005, I may have to go
back to VSC++ 6. Does anyone have updated instructions on how to get GDAL
building in the latest Visual Studio?

I continue to experience odd behaviour when using the MapInfo driver. On the
suggestion of a list member, I ran ogrinfo on two of my layers - a working
one and a corrupt one. There was nothing amiss according to ogrinfo. All
features are contained within the extents and there are no other differences
reported (I assume the -al switch is the most detailed version of the
outputs?).

Now when I try to create the MapInfo datasource, I get a .NET exception
indicating memory corruption. If I try to open it again (immediately in the
next line of code), it will work. This only happens with the MapInfo driver,
although I haven't tried many drivers.

I also generated ESRI Shapefile outputs, then used ogr2ogr to convert to
MapInfo tab format. This is the strange part: the same MI files were corrupt
as when I directly write them from my code. There's obviously something in
there that MapInfo doesn't like.

I then tried ogr2ogr from ESRI Shapefiles generated by a C++ version of my
app and those were all correct.

Richard


-----Original Message-----
From: gdal-dev-bounces at lists.maptools.org
[mailto:gdal-dev-bounces at lists.maptools.org] On Behalf Of Daniel Morissette

Frank Warmerdam wrote:
> 
> This might be worth taking up on the mitab list - this issue sounds 
> vaguely familiar.  I wonder if it might already have been fixed. Are 
> you using GDAL CVS?
> 

Frank,

Are you thinking of the problem with the #ifdef MITAB_AFFINE_PARAMS in MITAB
that causes unreadable files?
http://bugzilla.maptools.org/show_bug.cgi?id=1319

Richard: perhaps you could try recompiling GDAL after adding
-DMITAB_AFFINE_PARAMS to the CPPFLAGS variable in GDALmake.opt and let us
know if that solves the issue.

Daniel
--
Daniel Morissette
http://www.mapgears.com/
_______________________________________________
Gdal-dev mailing list
Gdal-dev at lists.maptools.org
http://lists.maptools.org/mailman/listinfo/gdal-dev