[gdal-dev] gdalwarp from C#

[Paul Meems]

We're using it like this:

using (var ds = _gdalProxy.Open(input, Access.GA_ReadOnly))
{
    if (ds == null)
    {
        throw new Exception("Can't open GDAL dataset: " + input);
    }

    var gdalOptions = new GDALWarpAppOptions(options);
    var ptr = new[] { Dataset.getCPtr(ds).Handle };
    var gcHandle = GCHandle.Alloc(ptr, GCHandleType.Pinned);
    try
    {
        // https://trac.osgeo.org/gdal/ticket/6437
        var dss = new
SWIGTYPE_p_p_GDALDatasetShadow(gcHandle.AddrOfPinnedObject(), false, null);
        using (var newDs = _gdalProxy.wrapper_GDALWarpDestName(output, 1,
dss, gdalOptions, null, null))
        {
            if (newDs == null)
            {
                throw new Exception("GdalWarp failed: " +
_gdalProxy.GetLastErrorMsg());
            }
        }
    }
    finally
    {
        if (gcHandle.IsAllocated)
            gcHandle.Free();
    }

    return true;
}




Paul

*Paul Meems *
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2017-11-04 20:04 GMT+01:00 Karu Kaarigar <kaarigar at gmail.com>:

> I am trying to use gdalwarp using C# bindings. I am using 64bit libs.
> However, I am not able to find proper docs on its usage. Specifically I
> need to know how to use the GDALWarpAppOptions and the format of options
> string array passed to its constructor. I also need to know the call
> semantics of various wrapper methods (wrapper_GDALWarpDestName,
> wrapper_GDALWarpDestName). I m confused about its arguments such as
> SWIGTYPE_p_p_GDALDatasetShadow, etc.
>
> Any help or pointers is highly appreciated. Is there any sample code that
> shows how to use gdalwarp from C#? Thanks you.
>
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/gdal-dev
>
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