wkt_parser_ptarray_add_coord()

POINTARRAY* wkt_parser_ptarray_add_coord	(	POINTARRAY *	pa,
		POINT	p
	)

Definition at line 265 of file lwin_wkt.c.

References POINT::flags, POINTARRAY::flags, FLAGS_GET_M, FLAGS_GET_Z, FLAGS_NDIMS, LW_TRUE, LWDEBUG, POINT::m, POINT4D::m, PARSER_ERROR_MIXDIMS, PARSER_ERROR_OTHER, ptarray_append_point(), ptarray_free(), SET_PARSER_ERROR, POINT::x, POINT4D::x, POINT::y, POINT4D::y, POINT::z, and POINT4D::z.

Referenced by wkt_parser_ptarray_new(), and yyparse().

{
        POINT4D pt;
        LWDEBUG(4,"entered");

        /* Error on trouble */
        if( ! pa )
        {
                SET_PARSER_ERROR(PARSER_ERROR_OTHER);
                return NULL;
        }

        /* Check that the coordinate has the same dimesionality as the array */
        if( FLAGS_NDIMS(p.flags) != FLAGS_NDIMS(pa->flags) )
        {
                ptarray_free(pa);
                SET_PARSER_ERROR(PARSER_ERROR_MIXDIMS);
                return NULL;
        }

        /* While parsing the point arrays, XYM and XMZ points are both treated as XYZ */
        pt.x = p.x;
        pt.y = p.y;
        if( FLAGS_GET_Z(pa->flags) )
                pt.z = p.z;
        if( FLAGS_GET_M(pa->flags) )
                pt.m = p.m;
        /* If the destination is XYM, we'll write the third coordinate to m */
        if( FLAGS_GET_M(pa->flags) && ! FLAGS_GET_Z(pa->flags) )
                pt.m = p.z;

        ptarray_append_point(pa, &pt, LW_TRUE); /* Allow duplicate points in array */
        return pa;
}

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