ST_MinimumClearanceLine()

Datum ST_MinimumClearanceLine

(

PG_FUNCTION_ARGS

)

Definition at line 3441 of file postgis/lwgeom_geos.c.

{
        GSERIALIZED* input;
        GSERIALIZED* result;
        GEOSGeometry* input_geos;
        GEOSGeometry* result_geos;
        int32_t srid;
 
        initGEOS(lwpgnotice, lwgeom_geos_error);
 
        input = PG_GETARG_GSERIALIZED_P(0);
        srid = gserialized_get_srid(input);
        input_geos = POSTGIS2GEOS(input);
        if (!input_geos)
                HANDLE_GEOS_ERROR("Geometry could not be converted to GEOS");
 
        result_geos = GEOSMinimumClearanceLine(input_geos);
        GEOSGeom_destroy(input_geos);
        if (!result_geos)
                HANDLE_GEOS_ERROR("Error computing minimum clearance");
 
        GEOSSetSRID(result_geos, srid);
        result = GEOS2POSTGIS(result_geos, LW_FALSE);
        GEOSGeom_destroy(result_geos);
 
        PG_FREE_IF_COPY(input, 0);
        PG_RETURN_POINTER(result);
}

References GEOS2POSTGIS(), gserialized_get_srid(), HANDLE_GEOS_ERROR, LW_FALSE, lwgeom_geos_error(), and POSTGIS2GEOS().

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