【UG\NX二次开发】UF_CURVE_create_simplified_curve 简化样条曲线成基本曲线（直线、圆弧等

bool simplifySpline(tag_t spline_tag, double tol, vector& vSimplifiedCurves)
{
	UF_UNDO_mark_id_t  mark_id;
	try
	{
		UF_UNDO_set_mark(UF_UNDO_visible, NULL, &mark_id);
		int n_segments;
		tag_t* segments;

		vSimplifiedCurves.clear();
		UF_CALL(UF_CURVE_create_simplified_curve(1, &spline_tag, tol, &n_segments, &segments));

		for (int i = 0; i < n_segments; i++)
			vSimplifiedCurves.push_back(segments[i]);

		UF_free(segments);
		if (vSimplifiedCurves.size() > 0) { return 1; }

		return 0;
	}
	catch (exception& ex)
	{
		UF_CALL(UF_UNDO_undo_to_mark(mark_id, NULL));
		return 0;
	}
}