PostGIS  2.1.10dev-r@@SVN_REVISION@@
Datum RASTER_getNumBands ( PG_FUNCTION_ARGS  )

Definition at line 1690 of file rt_pg.c.

References rtrowdump::raster, rt_raster_deserialize(), rt_raster_destroy(), rt_raster_get_num_bands(), and TRUE.

1691 {
1692  rt_pgraster *pgraster;
1693  rt_raster raster;
1694  int32_t num_bands;
1695 
1696  if (PG_ARGISNULL(0)) PG_RETURN_NULL();
1697  pgraster = (rt_pgraster *) PG_DETOAST_DATUM_SLICE(PG_GETARG_DATUM(0), 0, sizeof(struct rt_raster_serialized_t));
1698 
1699  raster = rt_raster_deserialize(pgraster, TRUE);
1700  if ( ! raster ) {
1701  PG_FREE_IF_COPY(pgraster, 0);
1702  elog(ERROR, "RASTER_getNumBands: Could not deserialize raster");
1703  PG_RETURN_NULL();
1704  }
1705 
1706  num_bands = rt_raster_get_num_bands(raster);
1707 
1708  rt_raster_destroy(raster);
1709  PG_FREE_IF_COPY(pgraster, 0);
1710 
1711  PG_RETURN_INT32(num_bands);
1712 }
int rt_raster_get_num_bands(rt_raster raster)
Definition: rt_api.c:5677
void rt_raster_destroy(rt_raster raster)
Release memory associated to a raster.
Definition: rt_api.c:5387
tuple raster
Be careful!! Zeros function's input parameter can be a (height x width) array, not (width x height): ...
Definition: rtrowdump.py:123
Struct definitions.
Definition: rt_api.h:2175
rt_raster rt_raster_deserialize(void *serialized, int header_only)
Return a raster from a serialized form.
Definition: rt_api.c:8350
#define TRUE
Definition: dbfopen.c:170

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