PostGIS  2.5.0beta2dev-r@@SVN_REVISION@@

◆ RASTER_setScale()

Datum RASTER_setScale ( PG_FUNCTION_ARGS  )

Definition at line 919 of file rtpg_raster_properties.c.

References FALSE, PG_FUNCTION_INFO_V1(), rtrowdump::raster, RASTER_setScaleXY(), rt_raster_deserialize(), rt_raster_destroy(), rt_raster_serialize(), rt_raster_set_scale(), and rt_raster_serialized_t::size.

Referenced by RASTER_setSRID().

920 {
921  rt_pgraster *pgraster = NULL;
922  rt_pgraster *pgrtn = NULL;
924  double size = PG_GETARG_FLOAT8(1);
925 
926  if (PG_ARGISNULL(0))
927  PG_RETURN_NULL();
928  pgraster = (rt_pgraster *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
929  raster = rt_raster_deserialize(pgraster, FALSE);
930  if (!raster) {
931  PG_FREE_IF_COPY(pgraster, 0);
932  elog(ERROR, "RASTER_setScale: Could not deserialize raster");
933  PG_RETURN_NULL();
934  }
935 
936  rt_raster_set_scale(raster, size, size);
937 
938  pgrtn = rt_raster_serialize(raster);
939  rt_raster_destroy(raster);
940  PG_FREE_IF_COPY(pgraster, 0);
941  if (!pgrtn)
942  PG_RETURN_NULL();
943 
944  SET_VARSIZE(pgrtn, pgrtn->size);
945  PG_RETURN_POINTER(pgrtn);
946 }
void * rt_raster_serialize(rt_raster raster)
Return this raster in serialized form.
Definition: rt_serialize.c:521
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_set_scale(rt_raster raster, double scaleX, double scaleY)
Set scale in projection units.
Definition: rt_raster.c:137
void rt_raster_destroy(rt_raster raster)
Release memory associated to a raster.
Definition: rt_raster.c:82
#define FALSE
Definition: dbfopen.c:168
Struct definitions.
Definition: librtcore.h:2250
rt_raster rt_raster_deserialize(void *serialized, int header_only)
Return a raster from a serialized form.
Definition: rt_serialize.c:717
Here is the call graph for this function:
Here is the caller graph for this function: