Bug 152898 Error Bar Chart
Version: 3.2.0 Build id: I20060602-1317 The option of chart sometimes works ok, but sometimes it has the following error:
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/AutoScale.java
* @param rrPrev
	 *            The 2-array of RotatedRectangle, to keep the previous label
	 *            rectangle
	 * @param arrayIndex
	 *            The index to use in rrPrev, 0 or 1, depending on staggering
	 * @param iLabelLocation
	 *            The location of the label (left/right, or above/below)
	 * @param x
	 *            The x location of the tick
	 * @param y
	 *            The y location of the tick
	 * @param iNewPointToCheck
	 *            the point to check for intersection in the new label
	 * @param iPrevPointToCheck
	 *            the point to check for intersection in the previous label
	 * @param la
	 *            The label
	 * @param xs
	 *            the Display Server
	 * @param tickIndex
	 *            The tick index, must start from 0.
	 * @return
	 */
	protected final boolean checkOneTickLabelVisibility(
			final RotatedRectangle[] rrPrev, final int arrayIndex,
			final int iLabelLocation, final double x, final double y,
			final int iNewPointToCheck, final int iPrevPointToCheck,
			final Label la, final IDisplayServer xs, final int tickIndex )
	{
		if ( rrPrev[arrayIndex] == null )