lwline_offsetcurve()

static LWGEOM * lwline_offsetcurve ( const LWLINE *  lwline, double  size, int  quadsegs, int  joinStyle, double  mitreLimit  )

static

Definition at line 1366 of file liblwgeom/lwgeom_geos.c.

{
        LWGEOM* result;
        LWGEOM* geom = lwline_as_lwgeom(lwline);
        int32_t srid = RESULT_SRID(geom);
        uint8_t is3d = FLAGS_GET_Z(geom->flags);
        GEOSGeometry *g1, *g3;
 
        if (srid == SRID_INVALID) return NULL;
 
        initGEOS(lwnotice, lwgeom_geos_error);
 
        if (!(g1 = LWGEOM2GEOS(geom, AUTOFIX))) GEOS_FAIL();
 
        g3 = GEOSOffsetCurve(g1, size, quadsegs, joinStyle, mitreLimit);
 
        if (!g3)
        {
                GEOS_FREE(g1);
                return NULL;
        }
 
        GEOSSetSRID(g3, srid);
 
        if (!(result = GEOS2LWGEOM(g3, is3d)))
                GEOS_FREE_AND_FAIL(g1, g3);
 
        GEOS_FREE(g1, g3);
        return result;
}

References AUTOFIX, LWGEOM::flags, FLAGS_GET_Z, GEOS2LWGEOM(), GEOS_FAIL, GEOS_FREE, GEOS_FREE_AND_FAIL, LWGEOM2GEOS(), lwgeom_geos_error(), lwline_as_lwgeom(), lwnotice(), RESULT_SRID, and SRID_INVALID.

Referenced by lwgeom_offsetcurve().

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