lwcollection_extract_recursive()

static int lwcollection_extract_recursive ( const LWCOLLECTION *  col, uint32_t  type, LWCOLLECTION *  col_out  )

static

Definition at line 408 of file lwcollection.c.

{
        size_t i;
        size_t geoms_added = 0;
 
        for (i = 0; i < col->ngeoms; i++)
        {
                LWGEOM *g = col->geoms[i];
                if (lwgeom_is_collection(g))
                {
                        LWCOLLECTION *col_part = lwgeom_as_lwcollection(g);
                        geoms_added += lwcollection_extract_recursive(col_part, type, col_out);
                }
 
                if (lwgeom_get_type(g) == type && !lwgeom_is_empty(g))
                {
                        lwcollection_add_lwgeom(col_out, lwgeom_clone(col->geoms[i]));
                        geoms_added++;
                }
        }
        return geoms_added;
}

References LWCOLLECTION::geoms, lwcollection_add_lwgeom(), lwcollection_extract_recursive(), lwgeom_as_lwcollection(), lwgeom_clone(), lwgeom_get_type(), lwgeom_is_collection(), lwgeom_is_empty(), and LWCOLLECTION::ngeoms.

Referenced by lwcollection_extract(), and lwcollection_extract_recursive().

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