PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ LWGEOM_affine()

Datum LWGEOM_affine ( PG_FUNCTION_ARGS  )

Definition at line 2649 of file lwgeom_functions_basic.c.

2650 {
2651  GSERIALIZED *geom = PG_GETARG_GSERIALIZED_P_COPY(0);
2652  LWGEOM *lwgeom = lwgeom_from_gserialized(geom);
2653  GSERIALIZED *ret;
2654  AFFINE affine;
2655 
2656  affine.afac = PG_GETARG_FLOAT8(1);
2657  affine.bfac = PG_GETARG_FLOAT8(2);
2658  affine.cfac = PG_GETARG_FLOAT8(3);
2659  affine.dfac = PG_GETARG_FLOAT8(4);
2660  affine.efac = PG_GETARG_FLOAT8(5);
2661  affine.ffac = PG_GETARG_FLOAT8(6);
2662  affine.gfac = PG_GETARG_FLOAT8(7);
2663  affine.hfac = PG_GETARG_FLOAT8(8);
2664  affine.ifac = PG_GETARG_FLOAT8(9);
2665  affine.xoff = PG_GETARG_FLOAT8(10);
2666  affine.yoff = PG_GETARG_FLOAT8(11);
2667  affine.zoff = PG_GETARG_FLOAT8(12);
2668 
2669  POSTGIS_DEBUG(2, "LWGEOM_affine called.");
2670 
2671  lwgeom_affine(lwgeom, &affine);
2672 
2673  /* COMPUTE_BBOX TAINTING */
2674  if (lwgeom->bbox)
2675  {
2676  lwgeom_refresh_bbox(lwgeom);
2677  }
2678  ret = geometry_serialize(lwgeom);
2679 
2680  /* Release memory */
2681  lwgeom_free(lwgeom);
2682  PG_FREE_IF_COPY(geom, 0);
2683 
2684  PG_RETURN_POINTER(ret);
2685 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:239
void lwgeom_refresh_bbox(LWGEOM *lwgeom)
Drop current bbox and calculate a fresh one.
Definition: lwgeom.c:690
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1138
void lwgeom_affine(LWGEOM *geom, const AFFINE *affine)
Definition: lwgeom.c:1974
double gfac
Definition: liblwgeom.h:346
double zoff
Definition: liblwgeom.h:346
double bfac
Definition: liblwgeom.h:346
double ifac
Definition: liblwgeom.h:346
double xoff
Definition: liblwgeom.h:346
double dfac
Definition: liblwgeom.h:346
double afac
Definition: liblwgeom.h:346
double ffac
Definition: liblwgeom.h:346
double cfac
Definition: liblwgeom.h:346
double hfac
Definition: liblwgeom.h:346
double efac
Definition: liblwgeom.h:346
double yoff
Definition: liblwgeom.h:346
GBOX * bbox
Definition: liblwgeom.h:472

References AFFINE::afac, LWGEOM::bbox, AFFINE::bfac, AFFINE::cfac, AFFINE::dfac, AFFINE::efac, AFFINE::ffac, AFFINE::gfac, AFFINE::hfac, AFFINE::ifac, lwgeom_affine(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_refresh_bbox(), AFFINE::xoff, AFFINE::yoff, and AFFINE::zoff.

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