PostGIS  2.5.1dev-r@@SVN_REVISION@@

◆ RASTER_setSkew()

Datum RASTER_setSkew ( PG_FUNCTION_ARGS  )

Definition at line 989 of file rtpg_raster_properties.c.

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

Referenced by RASTER_setScaleXY().

990 {
991  rt_pgraster *pgraster = NULL;
992  rt_pgraster *pgrtn = NULL;
994  double skew = PG_GETARG_FLOAT8(1);
995 
996  if (PG_ARGISNULL(0))
997  PG_RETURN_NULL();
998  pgraster = (rt_pgraster *) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
999  raster = rt_raster_deserialize(pgraster, FALSE);
1000  if (!raster) {
1001  PG_FREE_IF_COPY(pgraster, 0);
1002  elog(ERROR, "RASTER_setSkew: Could not deserialize raster");
1003  PG_RETURN_NULL();
1004  }
1005 
1006  rt_raster_set_skews(raster, skew, skew);
1007 
1008  pgrtn = rt_raster_serialize(raster);
1009  rt_raster_destroy(raster);
1010  PG_FREE_IF_COPY(pgraster, 0);
1011  if (!pgrtn)
1012  PG_RETURN_NULL();
1013 
1014  SET_VARSIZE(pgrtn, pgrtn->size);
1015  PG_RETURN_POINTER(pgrtn);
1016 }
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_skews(rt_raster raster, double skewX, double skewY)
Set skews about the X and Y axis.
Definition: rt_raster.c:168
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:725
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