rt_raster_touches()

rt_errorstate rt_raster_touches	(	rt_raster	rast1,
		int	nband1,
		rt_raster	rast2,
		int	nband2,
		int *	touches
	)

Return ES_ERROR if error occurred in function.

Parameter touches returns non-zero if two rasters touch

Parameters

rast1	: the first raster whose band will be tested
nband1	: the 0-based band of raster rast1 to use if value is less than zero, bands are ignored. if nband1 gte zero, nband2 must be gte zero
rast2	: the second raster whose band will be tested
nband2	: the 0-based band of raster rast2 to use if value is less than zero, bands are ignored if nband2 gte zero, nband1 must be gte zero
touches	: non-zero value if the two rasters' bands touch

Returns

ES_NONE if success, ES_ERROR if error

Definition at line 303 of file rt_spatial_relationship.c.

  {
        RASTER_DEBUG(3, "Starting");
 
        return rt_raster_geos_spatial_relationship(
                rast1, nband1,
                rast2, nband2,
                GSR_TOUCHES,
                touches
        );
}

References GSR_TOUCHES, RASTER_DEBUG, rt_raster_geos_spatial_relationship(), and touches().

Referenced by RASTER_touches(), and test_raster_geos_touches().

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