lwgeom_to_basic_type()

static LWGEOM* lwgeom_to_basic_type ( LWGEOM *  geom, uint8_t  original_type  )

inlinestatic

In place process a collection to find a concrete geometry object and expose that as the actual object.

Will some geom be lost? Sure, but your MVT renderer couldn't draw it anyways.

Definition at line 815 of file mvt.c.

{
        LWGEOM *geom_out = geom;
        if (lwgeom_get_type(geom) == COLLECTIONTYPE)
        {
                LWCOLLECTION *g = (LWCOLLECTION*)geom;
                geom_out = (LWGEOM *)lwcollection_extract(g, original_type);
        }
 
        /* If a collection only contains 1 geometry return than instead */
        if (lwgeom_is_collection(geom_out))
        {
                LWCOLLECTION *g = (LWCOLLECTION *)geom_out;
                if (g->ngeoms == 1)
                {
                        geom_out = g->geoms[0];
                }
        }
 
        geom_out->srid = geom->srid;
        return geom_out;
}

References COLLECTIONTYPE, LWCOLLECTION::geoms, lwcollection_extract(), lwgeom_get_type(), lwgeom_is_collection(), LWCOLLECTION::ngeoms, and LWGEOM::srid.

Referenced by mvt_clip_and_validate(), and mvt_geom().

Here is the call graph for this function:

Here is the caller graph for this function: