ptarray_force_dims()

POINTARRAY* ptarray_force_dims	(	const POINTARRAY *	pa,
		int	hasz,
		int	hasm
	)

Definition at line 1038 of file ptarray.c.

References POINTARRAY::flags, FLAGS_GET_M, FLAGS_GET_Z, getPoint4d_p(), LW_TRUE, POINT4D::m, POINTARRAY::npoints, ptarray_append_point(), ptarray_construct_empty(), and POINT4D::z.

Referenced by lwline_force_dims(), lwpoint_force_dims(), and lwpoly_force_dims().

{
        /* TODO handle zero-length point arrays */
        int i;
        int in_hasz = FLAGS_GET_Z(pa->flags);
        int in_hasm = FLAGS_GET_M(pa->flags);
        POINT4D pt;
        POINTARRAY *pa_out = ptarray_construct_empty(hasz, hasm, pa->npoints);

        for( i = 0; i < pa->npoints; i++ )
        {
                getPoint4d_p(pa, i, &pt);
                if( hasz && ! in_hasz )
                        pt.z = 0.0;
                if( hasm && ! in_hasm )
                        pt.m = 0.0;
                ptarray_append_point(pa_out, &pt, LW_TRUE);
        }

        return pa_out;
}

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