PostGIS  2.2.7dev-r@@SVN_REVISION@@
Datum RASTER_getXUpperLeft ( PG_FUNCTION_ARGS  )

Definition at line 306 of file rtpg_raster_properties.c.

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

307 {
308  rt_pgraster *pgraster;
310  double xul;
311 
312  if (PG_ARGISNULL(0)) PG_RETURN_NULL();
313  pgraster = (rt_pgraster *) PG_DETOAST_DATUM_SLICE(PG_GETARG_DATUM(0), 0, sizeof(struct rt_raster_serialized_t));
314 
315  raster = rt_raster_deserialize(pgraster, TRUE);
316  if ( ! raster ) {
317  PG_FREE_IF_COPY(pgraster, 0);
318  elog(ERROR, "RASTER_getXUpperLeft: Could not deserialize raster");
319  PG_RETURN_NULL();
320  }
321 
322  xul = rt_raster_get_x_offset(raster);
323 
324  rt_raster_destroy(raster);
325  PG_FREE_IF_COPY(pgraster, 0);
326 
327  PG_RETURN_FLOAT8(xul);
328 }
double rt_raster_get_x_offset(rt_raster raster)
Get raster x offset, in projection units.
Definition: rt_raster.c:213
tuple raster
Be careful!! Zeros function's input parameter can be a (height x width) array, not (width x height): ...
Definition: rtrowdump.py:121
void rt_raster_destroy(rt_raster raster)
Release memory associated to a raster.
Definition: rt_raster.c:82
Struct definitions.
Definition: librtcore.h:2213
#define TRUE
Definition: dbfopen.c:169
rt_raster rt_raster_deserialize(void *serialized, int header_only)
Return a raster from a serialized form.
Definition: rt_serialize.c:717

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