[gdal-dev] Re: Bug(?): RIK-maps with Gdal 1.7.2 do not work

[Tomas R]

  The reason for the out of memory exception was because the RIK-map I  
tested with i wasfar to big to be read into a bitmap. I have now created 
a smaller sample.

With the small RIK-fil I can reproduce the problem with the precompiled 
binaries from dyndns so problem is not only on my part. Using the small 
map (1000x750 pixels) the demo app from Gdal 1.6.1 works as it should. 
1.7.2 hangs with no exception given.

See ticket http://trac.osgeo.org/gdal/ticket/3674

The post you answered  I tried to delete and somewhat succeeded... I 
happened to compile the wrong file. When I thought I was compiling the 
GDALReadDirect.cs I instead compiled the GDALRead.cs.

Yours
Tomas

Chaitanya kumar CH skrev 2010-07-06 18:24:
> Tomas,
>
> I don't see any changes that could lead to infinite loops or memory 
> leaks recently.
> If you can provide a sample dataset that gives this error please raise 
> a ticket at http://trac.osgeo.org/gdal/newticket
>
> On Tue, Jul 6, 2010 at 6:43 PM, Tomas R <monshi at home.se 
> <mailto:monshi at home.se>> wrote:
>
>      I add - perhaps a problem with my comilation of Gdal.  Note when
>     I compile the GdalReadDirect.cs as it is and run it the result
>     differs from the result of the GdalReadDirect.exe found in
>     Swig\Csharp.
>     The latter gives the Raster dataset Paramets and runs until an Out
>     of memory Exception. Mine hangs and I have to abort it.
>
>     What have I done wrong this time?
>
>     Will try to recompile gdal and see if anything changes.
>
>     Tomas R skrev 2010-07-06 14:16:
>
>          I have a problem with RIK-maps and Gdal 1.7.2.
>
>         If I use Gdal 1.6.1 I have no problem reading the map but
>         doing the same with Gdal 1.7.2 my whole plugin/software hangs.
>
>         I have identified that Gdal stops at the line
>
>          band.ReadRaster(x, y, width, height, r, width, height, 0, 0);
>
>         where x, y, width and height are controlled to be within the
>         image to load.
>         This line taken from the routine
>          private void SaveBitmapPaletteDirect(...)
>         from the C# samples. I have adapted it to load only a portion
>         of the map into a bitmap.
>
>         I have compiled Gdal myself, perhaps a problem with the
>         compilation? Do I miss the RIK-driver or something? Or is
>         there an error in Gdal?  Or perhaps in the file(s)?
>         I have no problem opening and getting the properties of the
>         file, i.e. coordinate system and alike. It is when I try to
>         read the file that Gdal hangs.
>
>         I get no Exception, it just hangs and eats CPU-time.
>
>         I  compile the C# sample GDALReadDirect.cs from Gdal 1.7.2 and
>         adapt it to read a portion of a big RIK file (500x500 pixels)
>         and it stops at the same point in code. Error in the driver
>         for RIK perhaps? or error in the sample code?
>
>         Yours
>         Tomas
>
>
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>
> -- 
> Best regards,
> Chaitanya kumar CH.
> /tʃaɪθənjə/ /kʊmɑr/
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