[gdal-dev] How to use wrapper_GDALRasterizeDestName with C# bindings

[Even Rouault]

On mardi 14 mars 2017 15:57:31 CET Paul Meems wrote:
> Thanks Even,
> 
> I now have
> using (var ds = Gdal.OpenEx(input, 1, null, null, null))
> I couldn't find GDAL_OF_VECTOR in the C# bindings. 

Constants are defined in swig/include/gdalconst.i as:

// Open flags
%constant OF_ALL     = GDAL_OF_ALL;
%constant OF_RASTER = GDAL_OF_RASTER;
%constant OF_VECTOR = GDAL_OF_VECTOR;
%constant OF_GNM = GDAL_OF_GNM;
%constant OF_READONLY = GDAL_OF_READONLY;
%constant OF_UPDATE = GDAL_OF_UPDATE;
%constant OF_SHARED = GDAL_OF_SHARED;
%constant OF_VERBOSE_ERROR = GDAL_OF_VERBOSE_ERROR;


> I'm assuming it must be
> 1 since GDAL_OF_RASTER is 0.


/** Allow raster and vector drivers to be used.
 * Used by GDALOpenEx().
 * @since GDAL 2.0
 */
#define     GDAL_OF_ALL             0x00

/** Allow raster drivers to be used.
 * Used by GDALOpenEx().
 * @since GDAL 2.0
 */
#define     GDAL_OF_RASTER          0x02

/** Allow vector drivers to be used.
 * Used by GDALOpenEx().
 * @since GDAL 2.0
 */
#define     GDAL_OF_VECTOR          0x04


1 is working since :


/** Open in update mode.
 * Used by GDALOpenEx().
 * @since GDAL 2.0
 */
#define     GDAL_OF_UPDATE          0x01


And as no explicit GDAL_OF_RASTER or GDAL_OF_VECTOR  is specified, GDAL_OF_ALL is 
assumed. But you probably don't need/want to open in update mode.

> 
> It is now working.
> 
> 
> 
> 
> Paul
> 
> *Paul Meems *
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> 2017-03-14 15:23 GMT+01:00 Even Rouault <even.rouault at spatialys.com>:
> > On mardi 14 mars 2017 15:12:20 CET Paul Meems wrote:
> > > I'm trying to use this gdal_rasterize command in my C# application:
> > > 
> > > gdal_rasterize -a DN -a_srs "EPSG:28992" -tr 5 5 -a_nodata 0 -l test
> > > 
> > > test.shp test.shp
> > > 
> > > 
> > > 
> > > My goal is to convert a shapefile to a tiff-file. The above command does
> > > 
> > > what I want.
> > > 
> > > I need to call it from within my C# application.
> > > 
> > > I'm already successfully using wrapper_GDALTranslate
> > > 
> > > and wrapper_GDALWarpDestName but I'm struggling
> > > 
> > > with wrapper_GDALRasterizeDestName.
> > > 
> > > 
> > > 
> > > I have this code:
> > > 
> > > using (var ds = Ogr.Open(shapefile, 0)) // 0 means read-only. 1
> > > 
> > > means writeable.
> > > 
> > > {
> > > 
> > > if (ds == null)
> > > 
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