lwgeom_length_2d()

double lwgeom_length_2d

(

const LWGEOM *

geom

)

Definition at line 1712 of file lwgeom.c.

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

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

{
        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 ( lwgeom_is_collection(geom) )
        {
                double length = 0.0;
                int 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;
}

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