lwgeom_count_geometries()

static int32 lwgeom_count_geometries ( LWGEOM *  lwgeom, bool  patches_as_geometries  )

static

Definition at line 246 of file lwgeom_ogc.c.

{
        int32 ret = 0;
 
        if (lwgeom_is_empty(lwgeom))
        {
                ret = 0;
        }
        else if (lwgeom_is_unitary(lwgeom))
        {
                /* If it's a TIN or PolyhedralSurface and we want to count patches */
                if (lwgeom_has_patches(lwgeom) && patches_as_geometries)
                {
                        LWCOLLECTION *col = lwgeom_as_lwcollection(lwgeom);
                        ret = col ? col->ngeoms : 1;
                }
                else
                {
                        ret = 1;
                }
        }
        else
        {
                LWCOLLECTION *col = lwgeom_as_lwcollection(lwgeom);
                ret = col->ngeoms;
        }
 
        return ret;
}

References lwgeom_as_lwcollection(), lwgeom_has_patches(), lwgeom_is_empty(), lwgeom_is_unitary(), and LWCOLLECTION::ngeoms.

Referenced by LWGEOM_numgeometries_collection(), and LWGEOM_numpatches().

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