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

Definition at line 1840 of file rt_pg.c.

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

1841 {
1842  rt_pgraster *pgraster;
1843  rt_raster raster;
1844  double xskew;
1845 
1846  if (PG_ARGISNULL(0)) PG_RETURN_NULL();
1847  pgraster = (rt_pgraster *) PG_DETOAST_DATUM_SLICE(PG_GETARG_DATUM(0), 0, sizeof(struct rt_raster_serialized_t));
1848 
1849  raster = rt_raster_deserialize(pgraster, TRUE);
1850  if ( ! raster ) {
1851  PG_FREE_IF_COPY(pgraster, 0);
1852  elog(ERROR, "RASTER_getXSkew: Could not deserialize raster");
1853  PG_RETURN_NULL();
1854  }
1855 
1856  xskew = rt_raster_get_x_skew(raster);
1857 
1858  rt_raster_destroy(raster);
1859  PG_FREE_IF_COPY(pgraster, 0);
1860 
1861  PG_RETURN_FLOAT8(xskew);
1862 }
void rt_raster_destroy(rt_raster raster)
Release memory associated to a raster.
Definition: rt_api.c:5387
double rt_raster_get_x_skew(rt_raster raster)
Get skew about the X axis.
Definition: rt_api.c:5486
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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