LWGEOM_affine()

Datum LWGEOM_affine

(

PG_FUNCTION_ARGS

)

Definition at line 2629 of file lwgeom_functions_basic.c.

{
        GSERIALIZED *geom = PG_GETARG_GSERIALIZED_P_COPY(0);
        LWGEOM *lwgeom = lwgeom_from_gserialized(geom);
        GSERIALIZED *ret;
        AFFINE affine;
 
        affine.afac =  PG_GETARG_FLOAT8(1);
        affine.bfac =  PG_GETARG_FLOAT8(2);
        affine.cfac =  PG_GETARG_FLOAT8(3);
        affine.dfac =  PG_GETARG_FLOAT8(4);
        affine.efac =  PG_GETARG_FLOAT8(5);
        affine.ffac =  PG_GETARG_FLOAT8(6);
        affine.gfac =  PG_GETARG_FLOAT8(7);
        affine.hfac =  PG_GETARG_FLOAT8(8);
        affine.ifac =  PG_GETARG_FLOAT8(9);
        affine.xoff =  PG_GETARG_FLOAT8(10);
        affine.yoff =  PG_GETARG_FLOAT8(11);
        affine.zoff =  PG_GETARG_FLOAT8(12);
 
        POSTGIS_DEBUG(2, "LWGEOM_affine called.");
 
        lwgeom_affine(lwgeom, &affine);
 
        /* COMPUTE_BBOX TAINTING */
        if ( lwgeom->bbox )
        {
                lwgeom_refresh_bbox(lwgeom);
        }
        ret = geometry_serialize(lwgeom);
 
        /* Release memory */
        lwgeom_free(lwgeom);
        PG_FREE_IF_COPY(geom, 0);
 
        PG_RETURN_POINTER(ret);
}

References AFFINE::afac, LWGEOM::bbox, AFFINE::bfac, AFFINE::cfac, AFFINE::dfac, AFFINE::efac, AFFINE::ffac, geometry_serialize(), 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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