lwgeom_length_2d()

double lwgeom_length_2d ( const LWGEOM *  geom )

extern

Definition at line 2060 of file lwgeom.c.

{
        int type = geom->type;
        if ( type == LINETYPE )
                return lwline_length_2d((LWLINE*)geom);
        else if ( type == CIRCSTRINGTYPE )
                return lwcircstring_length_2d((LWCIRCSTRING*)geom);
        else if ( type == COMPOUNDTYPE )
                return lwcompound_length_2d((LWCOMPOUND*)geom);
        else if ( type != CURVEPOLYTYPE && lwgeom_is_collection(geom) )
        {
                double length = 0.0;
                uint32_t i;
                LWCOLLECTION *col = (LWCOLLECTION*)geom;
                for ( i = 0; i < col->ngeoms; i++ )
                        length += lwgeom_length_2d(col->geoms[i]);
                return length;
        }
        else
                return 0.0;
}

References CIRCSTRINGTYPE, COMPOUNDTYPE, CURVEPOLYTYPE, LWCOLLECTION::geoms, LINETYPE, lwcircstring_length_2d(), lwcompound_length_2d(), lwgeom_is_collection(), lwgeom_length_2d(), lwline_length_2d(), LWCOLLECTION::ngeoms, and LWGEOM::type.

Referenced by gserialized_distance_nd(), lwcompound_length_2d(), lwcurvepoly_perimeter_2d(), LWGEOM_length2d_linestring(), and lwgeom_length_2d().

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