lwgeom_perimeter_2d()

double lwgeom_perimeter_2d

(

const LWGEOM *

geom

)

Definition at line 1668 of file lwgeom.c.

References CURVEPOLYTYPE, LWCOLLECTION::geoms, lwcurvepoly_perimeter_2d(), lwgeom_is_collection(), lwpoly_perimeter_2d(), lwtriangle_perimeter_2d(), LWCOLLECTION::ngeoms, POLYGONTYPE, TRIANGLETYPE, ovdump::type, and LWGEOM::type.

Referenced by LWGEOM_perimeter2d_poly().

{
        int type = geom->type;
        if ( type == POLYGONTYPE )
                return lwpoly_perimeter_2d((LWPOLY*)geom);
        else if ( type == CURVEPOLYTYPE )
                return lwcurvepoly_perimeter_2d((LWCURVEPOLY*)geom);
        else if ( type == TRIANGLETYPE )
                return lwtriangle_perimeter_2d((LWTRIANGLE*)geom);
        else if ( lwgeom_is_collection(geom) )
        {
                double perimeter = 0.0;
                int i;
                LWCOLLECTION *col = (LWCOLLECTION*)geom;
                for ( i = 0; i < col->ngeoms; i++ )
                        perimeter += lwgeom_perimeter_2d(col->geoms[i]);
                return perimeter;
        }
        else
                return 0.0;
}

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