lwgeom_reverse()

void lwgeom_reverse

(

LWGEOM *

lwgeom

)

Reverse vertex order of LWGEOM.

Definition at line 93 of file lwgeom.c.

References CIRCSTRINGTYPE, COLLECTIONTYPE, COMPOUNDTYPE, CURVEPOLYTYPE, LWCOLLECTION::geoms, LINETYPE, lwcircstring_reverse(), lwline_reverse(), lwpoly_reverse(), lwtriangle_reverse(), MULTICURVETYPE, MULTILINETYPE, MULTIPOLYGONTYPE, MULTISURFACETYPE, LWCOLLECTION::ngeoms, POLYGONTYPE, POLYHEDRALSURFACETYPE, TINTYPE, TRIANGLETYPE, and LWGEOM::type.

Referenced by LWGEOM_reverse(), lwt_GetFaceEdges(), mvt_geom(), ST_IsPolygonCCW(), and test_lwcurve_linearize().

{
        int i;
        LWCOLLECTION *col;

        switch (lwgeom->type)
        {
        case LINETYPE:
                lwline_reverse((LWLINE *)lwgeom);
                return;
        case POLYGONTYPE:
                lwpoly_reverse((LWPOLY *)lwgeom);
                return;
        case TRIANGLETYPE:
                lwtriangle_reverse((LWTRIANGLE *)lwgeom);
                return;
        case CIRCSTRINGTYPE:
                lwcircstring_reverse((LWCIRCSTRING *)lwgeom);
                return;
        case MULTICURVETYPE:
        case MULTILINETYPE:
        case MULTIPOLYGONTYPE:
        case MULTISURFACETYPE:
        case POLYHEDRALSURFACETYPE:
        case TINTYPE:
        case COLLECTIONTYPE:
        case COMPOUNDTYPE:
        case CURVEPOLYTYPE:
                col = (LWCOLLECTION *)lwgeom;
                for (i=0; i<col->ngeoms; i++)
                        lwgeom_reverse(col->geoms[i]);
                return;
        }
}

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