lwcollection_set_effective_area()

static LWCOLLECTION* lwcollection_set_effective_area ( const LWCOLLECTION *  igeom, int  set_area, double  trshld  )

static

Definition at line 516 of file effectivearea.c.

References LWCOLLECTION::flags, FLAGS_GET_M, FLAGS_GET_Z, LWCOLLECTION::geoms, lwcollection_add_lwgeom(), lwcollection_construct_empty(), lwcollection_is_empty(), LWDEBUG, lwgeom_set_effective_area(), LWCOLLECTION::ngeoms, LWCOLLECTION::srid, and LWCOLLECTION::type.

Referenced by lwgeom_set_effective_area().

{
        LWDEBUG(2, "Entered  lwcollection_set_effective_area");
        int i;
        int set_m;
        if(set_area)
                set_m=1;
        else
                set_m=FLAGS_GET_M(igeom->flags);
        LWCOLLECTION *out = lwcollection_construct_empty(igeom->type, igeom->srid, FLAGS_GET_Z(igeom->flags), set_m);

        if( lwcollection_is_empty(igeom) )
                return out; /* should we return NULL instead ? */

        for( i = 0; i < igeom->ngeoms; i++ )
        {
                LWGEOM *ngeom = lwgeom_set_effective_area(igeom->geoms[i],set_area,trshld);
                if ( ngeom ) out = lwcollection_add_lwgeom(out, ngeom);
        }

        return out;
}

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