[Gdal-dev] Create Images with GDAL in C#

[Jean Michel PIERRET]

Hi,

I'm using the CVS of 2006.11.09 and it's doesn't work with your new version
of code, but with the CVS of this morning (2006.11.13) it's ok, my images
are good and I can read these with arcview.        

Thanks a lot, for your reactivity and efficiency.

PIERRET Jean michel

-----Message d'origine-----
De : Tamas Szekeres [mailto:szekerest at gmail.com] 
Envoyé : lundi 13 novembre 2006 23:35
À : Jean Michel PIERRET
Cc : gdal-dev at lists.maptools.org
Objet : Re: [Gdal-dev] Create Images with GDAL in C#

I've tested the following code with success:

public static void Main(string[] args)
{
          create(args[0]);
}

public static void create(string file)
    {
        Driver dv;
        Dataset ds;
        Band ba;

        int bXSize, bYSize;
        int w, h;

        string [] options;

        w = 100;
        h = 100;

        bXSize = w;
        bYSize = 1;

        gdal.AllRegister();

        dv = gdal.GetDriverByName("GTiff");
        options = new string [] {"BLOCKXSIZE=" + bXSize, "BLOCKYSIZE="
+ bYSize};

        ds = dv.Create(file, w, h, 1, gdalconst.GDT_Byte, options);

        ba = ds.GetRasterBand(1);

        float [] buffer;

        buffer = new float [w * h];

        for (int i = 0; i < buffer.Length; i++)

            buffer[i] = i*256/buffer.Length;

        ba.WriteRaster(0, 0, w, h, buffer, w, h, 0, 0);

        ba.FlushCache();
        ds.FlushCache();

        ba.Dispose();
        ds.Dispose();
    }


Are you using the latest CVS version?

Best Regards,

Tamas Szekeres




2006/11/13, Jean Michel PIERRET <jmp at geosys.com>:
>
>
>
>
> Hi,
>
>
> I've just tried to use the GDAL C#, it's ok to read images,
>
> But i have problem to create images, all my created images are empty.
>
>
>
> public static void create(string file)
>
> {
>
> Driver dv;
>
>       Dataset ds;
>
>       Band ba;
>
>
>
>       int bXSize, bYSize;
>
>       int w, h;
>
>
>
>       string [] options;
>
>
>
>       w = 100;
>
>       h = 100;
>
>
>
>       bXSize = w;
>
>       bYSize = 1;
>
>
>
>       dv = gdal.GetDriverByName("GTiff");
>
>       options = new string [] {"BLOCKXSIZE=" + bXSize, "BLOCKYSIZE=" +
> bYSize};
>
>
>
>       ds = dv.Create(file, w, h, 1, gdalconst.GDT_Float32, options);
>
>       ba = ds.GetRasterBand(1);
>
>
>
>       float [] buffer;
>
>       buffer = new float [w * h];
>
>       for (int i = 0; i < buffer.Length; i++)
>
>             buffer[i] = i;
>
>
>
>       b.WriteRaster(0, 0, w, h, buffer, w, h, 0, 0);
>
>
>
>       b.FlushCache();
>
>       d.FlushCache();
>
>
>
>       b.Dispose();
>
>       d.Dispose();
>
> }
>
>
>
> Thanks for your help and all your work on c# bindings.
>
>
>
> PIERRET Jean michel.
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>
>