lwgeom_length()

double lwgeom_length ( const LWGEOM *  geom )

extern

Definition at line 1930 of file lwgeom.c.

{
        int type = geom->type;
        if ( type == LINETYPE )
                return lwline_length((LWLINE*)geom);
        else if ( type == CIRCSTRINGTYPE )
                return lwcircstring_length((LWCIRCSTRING*)geom);
        else if ( type == COMPOUNDTYPE )
                return lwcompound_length((LWCOMPOUND*)geom);
        else if ( 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(col->geoms[i]);
                return length;
        }
        else
                return 0.0;
}

References CIRCSTRINGTYPE, COMPOUNDTYPE, LWCOLLECTION::geoms, LINETYPE, lwcircstring_length(), lwcompound_length(), lwgeom_is_collection(), lwgeom_length(), lwline_length(), LWCOLLECTION::ngeoms, and LWGEOM::type.

Referenced by gserialized_distance_nd(), lwcurvepoly_perimeter(), lwgeom_length(), and LWGEOM_length_linestring().

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