lwgeom_mindistance2d_tolerance()

double lwgeom_mindistance2d_tolerance ( const LWGEOM *  lw1, const LWGEOM *  lw2, double  tolerance  )

extern

Function handling min distance calculations and dwithin calculations.

The difference is just the tolerance.

Definition at line 222 of file measures.c.

{
        DISTPTS thedl;
        LWDEBUG(2, "lwgeom_mindistance2d_tolerance is called");
        thedl.mode = DIST_MIN;
        thedl.distance = FLT_MAX;
        thedl.tolerance = tolerance;
        if (lw_dist2d_comp(lw1, lw2, &thedl))
                return thedl.distance;
        /*should never get here. all cases ought to be error handled earlier*/
        lwerror("Some unspecified error.");
        return FLT_MAX;
}

References DIST_MIN, DISTPTS::distance, lw_dist2d_comp(), LWDEBUG, lwerror(), DISTPTS::mode, and DISTPTS::tolerance.

Referenced by LWGEOM_dwithin(), lwgeom_mindistance2d(), lwgeom_mindistance3d_tolerance(), lwt_GetEdgeByPoint(), lwt_GetFaceByPoint(), rt_raster_within_distance(), union_dbscan_general(), and union_dbscan_minpoints_1().

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