[Gdal-dev] Problem for build overviews

[mbaye]

I have problem ito build overviews in vs2003 with gdal-1.4.0 
when i do this

GDAL.gdal.AllRegister();
			GDAL.Dataset ds = GDAL.gdal.Open("jp2.jpg", GDAL.gdalconst.GA_ReadOnly);
			Console.Out.WriteLine("Nombre de bandes avant creation doverviews :
"+ds.RasterCount);
			ds.BuildOverviews("MODE",2);
			Console.Out.WriteLine("Nombre de bandes avant creation doverviews :
"+ds.RasterCount);
			int over=ds.GetRasterBand(1).GetOverviewCount();
			Console.Out.WriteLine("Le nombre d overviews : "+over)

I have this error


Une exception non gérée du type 'System.ApplicationException' s'est produite
dans gdal_gdal_csharp.dll

Informations supplémentaires : The JPEG driver does not support update
access to existing datasets.

Thanks for help me 

-- 
View this message in context: http://www.nabble.com/Problem-for-build-overviews-tf2944831.html#a8234819
Sent from the GDAL - Dev mailing list archive at Nabble.com.