| java.lang.Object org.jfree.chart.axis.Axis org.jfree.chart.axis.ValueAxis org.jfree.chart.axis.NumberAxis
All known Subclasses: org.jfree.chart.axis.ModuloAxis, org.jfree.chart.axis.NumberAxis3D, org.jfree.chart.axis.CyclicNumberAxis, org.jfree.chart.axis.SymbolAxis, org.jfree.chart.axis.LogarithmicAxis,
NumberAxis | public class NumberAxis extends ValueAxis implements Cloneable,Serializable(Code) | | An axis for displaying numerical data.
If the axis is set up to automatically determine its range to fit the data,
you can ensure that the range includes zero (statisticians usually prefer
this) by setting the autoRangeIncludesZero flag to
true .
The NumberAxis class has a mechanism for automatically
selecting a tick unit that is appropriate for the current axis range. This
mechanism is an adaptation of code suggested by Laurence Vanhelsuwe.
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Constructor Summary | |
public | NumberAxis() Default constructor. | public | NumberAxis(String label) Constructs a number axis, using default values where necessary. |
Method Summary | |
protected void | autoAdjustRange() Rescales the axis to ensure that all data is visible. | protected double | calculateHighestVisibleTickValue() Calculates the value of the highest visible tick on the axis. | protected double | calculateLowestVisibleTickValue() Calculates the value of the lowest visible tick on the axis. | protected int | calculateVisibleTickCount() Calculates the number of visible ticks. | public Object | clone() Returns a clone of the axis. | public void | configure() Configures the axis to work with the specified plot. | public static TickUnitSource | createIntegerTickUnits() Returns a collection of tick units for integer values. | public static TickUnitSource | createIntegerTickUnits(Locale locale) Returns a collection of tick units for integer values.
Uses a given Locale to create the DecimalFormats.
Parameters: locale - the locale to use to represent Numbers. | public static TickUnitSource | createStandardTickUnits() Creates the standard tick units. | public static TickUnitSource | createStandardTickUnits(Locale locale) Creates a collection of standard tick units. | public AxisState | draw(Graphics2D g2, double cursor, Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge, PlotRenderingInfo plotState) Draws the axis on a Java 2D graphics device (such as the screen or a
printer).
Parameters: g2 - the graphics device (null not permitted). Parameters: cursor - the cursor location. Parameters: plotArea - the area within which the axes and data should be drawn(null not permitted). Parameters: dataArea - the area within which the data should be drawn (null not permitted). Parameters: edge - the location of the axis (null not permitted). Parameters: plotState - collects information about the plot (null permitted). | public boolean | equals(Object obj) Tests the axis for equality with an arbitrary object.
Parameters: obj - the object (null permitted). | protected double | estimateMaximumTickLabelHeight(Graphics2D g2) Estimates the maximum tick label height.
Parameters: g2 - the graphics device. | protected double | estimateMaximumTickLabelWidth(Graphics2D g2, TickUnit unit) Estimates the maximum width of the tick labels, assuming the specified
tick unit is used.
Rather than computing the string bounds of every tick on the axis, we
just look at two values: the lower bound and the upper bound for the
axis. | public boolean | getAutoRangeIncludesZero() Returns the flag that indicates whether or not the automatic axis range
(if indeed it is determined automatically) is forced to include zero. | public boolean | getAutoRangeStickyZero() Returns a flag that affects the auto-range when zero falls outside the
data range but inside the margins defined for the axis. | public MarkerAxisBand | getMarkerBand() Returns the (optional) marker band for the axis. | public NumberFormat | getNumberFormatOverride() Returns the number format override. | public RangeType | getRangeType() Returns the axis range type. | public NumberTickUnit | getTickUnit() Returns the tick unit for the axis. | public int | hashCode() Returns a hash code for this object. | public double | java2DToValue(double java2DValue, Rectangle2D area, RectangleEdge edge) Converts a coordinate in Java2D space to the corresponding data value,
assuming that the axis runs along one edge of the specified dataArea.
Parameters: java2DValue - the coordinate in Java2D space. Parameters: area - the area in which the data is plotted. Parameters: edge - the location. | public List | refreshTicks(Graphics2D g2, AxisState state, Rectangle2D dataArea, RectangleEdge edge) Calculates the positions of the tick labels for the axis, storing the
results in the tick label list (ready for drawing).
Parameters: g2 - the graphics device. Parameters: state - the axis state. Parameters: dataArea - the area in which the plot should be drawn. Parameters: edge - the location of the axis. | protected List | refreshTicksHorizontal(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge) Calculates the positions of the tick labels for the axis, storing the
results in the tick label list (ready for drawing).
Parameters: g2 - the graphics device. Parameters: dataArea - the area in which the data should be drawn. Parameters: edge - the location of the axis. | protected List | refreshTicksVertical(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge) Calculates the positions of the tick labels for the axis, storing the
results in the tick label list (ready for drawing).
Parameters: g2 - the graphics device. Parameters: dataArea - the area in which the plot should be drawn. Parameters: edge - the location of the axis. | protected void | selectAutoTickUnit(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge) Selects an appropriate tick value for the axis. | protected void | selectHorizontalAutoTickUnit(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge) Selects an appropriate tick value for the axis. | protected void | selectVerticalAutoTickUnit(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge) Selects an appropriate tick value for the axis. | public void | setAutoRangeIncludesZero(boolean flag) Sets the flag that indicates whether or not the axis range, if
automatically calculated, is forced to include zero. | public void | setAutoRangeStickyZero(boolean flag) Sets a flag that affects the auto-range when zero falls outside the data
range but inside the margins defined for the axis. | public void | setMarkerBand(MarkerAxisBand band) Sets the marker band for the axis. | public void | setNumberFormatOverride(NumberFormat formatter) Sets the number format override. | public void | setRangeType(RangeType rangeType) Sets the axis range type. | public void | setTickUnit(NumberTickUnit unit) Sets the tick unit for the axis and sends an
AxisChangeEvent to
all registered listeners. | public void | setTickUnit(NumberTickUnit unit, boolean notify, boolean turnOffAutoSelect) Sets the tick unit for the axis and, if requested, sends an
AxisChangeEvent to all registered listeners. | public double | valueToJava2D(double value, Rectangle2D area, RectangleEdge edge) Converts a data value to a coordinate in Java2D space, assuming that the
axis runs along one edge of the specified dataArea.
Note that it is possible for the coordinate to fall outside the plotArea.
Parameters: value - the data value. Parameters: area - the area for plotting the data. Parameters: edge - the axis location. |
DEFAULT_AUTO_RANGE_INCLUDES_ZERO | final public static boolean DEFAULT_AUTO_RANGE_INCLUDES_ZERO(Code) | | The default value for the autoRangeIncludesZero flag.
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DEFAULT_AUTO_RANGE_STICKY_ZERO | final public static boolean DEFAULT_AUTO_RANGE_STICKY_ZERO(Code) | | The default value for the autoRangeStickyZero flag.
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DEFAULT_VERTICAL_TICK_LABELS | final public static boolean DEFAULT_VERTICAL_TICK_LABELS(Code) | | The default setting for the vertical tick labels flag.
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NumberAxis | public NumberAxis()(Code) | | Default constructor.
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NumberAxis | public NumberAxis(String label)(Code) | | Constructs a number axis, using default values where necessary.
Parameters: label - the axis label (null permitted). |
autoAdjustRange | protected void autoAdjustRange()(Code) | | Rescales the axis to ensure that all data is visible.
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calculateHighestVisibleTickValue | protected double calculateHighestVisibleTickValue()(Code) | | Calculates the value of the highest visible tick on the axis.
The value of the highest visible tick on the axis. See Also: NumberAxis.calculateLowestVisibleTickValue() |
calculateVisibleTickCount | protected int calculateVisibleTickCount()(Code) | | Calculates the number of visible ticks.
The number of visible ticks on the axis. |
configure | public void configure()(Code) | | Configures the axis to work with the specified plot. If the axis has
auto-scaling, then sets the maximum and minimum values.
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createStandardTickUnits | public static TickUnitSource createStandardTickUnits(Locale locale)(Code) | | Creates a collection of standard tick units. The supplied locale is
used to create the number formatter (a localised instance of
NumberFormat ).
If you don't like these defaults, create your own instance of
TickUnits and then pass it to the
setStandardTickUnits() method.
Parameters: locale - the locale. A tick unit collection. See Also: NumberAxis.setStandardTickUnits(TickUnitSource) |
draw | public AxisState draw(Graphics2D g2, double cursor, Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge, PlotRenderingInfo plotState)(Code) | | Draws the axis on a Java 2D graphics device (such as the screen or a
printer).
Parameters: g2 - the graphics device (null not permitted). Parameters: cursor - the cursor location. Parameters: plotArea - the area within which the axes and data should be drawn(null not permitted). Parameters: dataArea - the area within which the data should be drawn (null not permitted). Parameters: edge - the location of the axis (null not permitted). Parameters: plotState - collects information about the plot (null permitted). The axis state (never null ). |
equals | public boolean equals(Object obj)(Code) | | Tests the axis for equality with an arbitrary object.
Parameters: obj - the object (null permitted). A boolean. |
estimateMaximumTickLabelHeight | protected double estimateMaximumTickLabelHeight(Graphics2D g2)(Code) | | Estimates the maximum tick label height.
Parameters: g2 - the graphics device. The maximum height. |
estimateMaximumTickLabelWidth | protected double estimateMaximumTickLabelWidth(Graphics2D g2, TickUnit unit)(Code) | | Estimates the maximum width of the tick labels, assuming the specified
tick unit is used.
Rather than computing the string bounds of every tick on the axis, we
just look at two values: the lower bound and the upper bound for the
axis. These two values will usually be representative.
Parameters: g2 - the graphics device. Parameters: unit - the tick unit to use for calculation. The estimated maximum width of the tick labels. |
getAutoRangeIncludesZero | public boolean getAutoRangeIncludesZero()(Code) | | Returns the flag that indicates whether or not the automatic axis range
(if indeed it is determined automatically) is forced to include zero.
The flag. |
getAutoRangeStickyZero | public boolean getAutoRangeStickyZero()(Code) | | Returns a flag that affects the auto-range when zero falls outside the
data range but inside the margins defined for the axis.
The flag. See Also: NumberAxis.setAutoRangeStickyZero(boolean) |
hashCode | public int hashCode()(Code) | | Returns a hash code for this object.
A hash code. |
java2DToValue | public double java2DToValue(double java2DValue, Rectangle2D area, RectangleEdge edge)(Code) | | Converts a coordinate in Java2D space to the corresponding data value,
assuming that the axis runs along one edge of the specified dataArea.
Parameters: java2DValue - the coordinate in Java2D space. Parameters: area - the area in which the data is plotted. Parameters: edge - the location. The data value. See Also: NumberAxis.valueToJava2D(double,Rectangle2D,RectangleEdge) |
refreshTicks | public List refreshTicks(Graphics2D g2, AxisState state, Rectangle2D dataArea, RectangleEdge edge)(Code) | | Calculates the positions of the tick labels for the axis, storing the
results in the tick label list (ready for drawing).
Parameters: g2 - the graphics device. Parameters: state - the axis state. Parameters: dataArea - the area in which the plot should be drawn. Parameters: edge - the location of the axis. A list of ticks. |
refreshTicksHorizontal | protected List refreshTicksHorizontal(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge)(Code) | | Calculates the positions of the tick labels for the axis, storing the
results in the tick label list (ready for drawing).
Parameters: g2 - the graphics device. Parameters: dataArea - the area in which the data should be drawn. Parameters: edge - the location of the axis. A list of ticks. |
refreshTicksVertical | protected List refreshTicksVertical(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge)(Code) | | Calculates the positions of the tick labels for the axis, storing the
results in the tick label list (ready for drawing).
Parameters: g2 - the graphics device. Parameters: dataArea - the area in which the plot should be drawn. Parameters: edge - the location of the axis. A list of ticks. |
selectAutoTickUnit | protected void selectAutoTickUnit(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge)(Code) | | Selects an appropriate tick value for the axis. The strategy is to
display as many ticks as possible (selected from an array of 'standard'
tick units) without the labels overlapping.
Parameters: g2 - the graphics device. Parameters: dataArea - the area defined by the axes. Parameters: edge - the axis location. |
selectHorizontalAutoTickUnit | protected void selectHorizontalAutoTickUnit(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge)(Code) | | Selects an appropriate tick value for the axis. The strategy is to
display as many ticks as possible (selected from an array of 'standard'
tick units) without the labels overlapping.
Parameters: g2 - the graphics device. Parameters: dataArea - the area defined by the axes. Parameters: edge - the axis location. |
selectVerticalAutoTickUnit | protected void selectVerticalAutoTickUnit(Graphics2D g2, Rectangle2D dataArea, RectangleEdge edge)(Code) | | Selects an appropriate tick value for the axis. The strategy is to
display as many ticks as possible (selected from an array of 'standard'
tick units) without the labels overlapping.
Parameters: g2 - the graphics device. Parameters: dataArea - the area in which the plot should be drawn. Parameters: edge - the axis location. |
setAutoRangeIncludesZero | public void setAutoRangeIncludesZero(boolean flag)(Code) | | Sets the flag that indicates whether or not the axis range, if
automatically calculated, is forced to include zero.
If the flag is changed to true , the axis range is
recalculated.
Any change to the flag will trigger an
AxisChangeEvent .
Parameters: flag - the new value of the flag. See Also: NumberAxis.getAutoRangeIncludesZero() |
setAutoRangeStickyZero | public void setAutoRangeStickyZero(boolean flag)(Code) | | Sets a flag that affects the auto-range when zero falls outside the data
range but inside the margins defined for the axis.
Parameters: flag - the new flag. See Also: NumberAxis.getAutoRangeStickyZero() |
setMarkerBand | public void setMarkerBand(MarkerAxisBand band)(Code) | | Sets the marker band for the axis.
The marker band is optional, leave it set to null if you
don't require it.
Parameters: band - the new band (null permitted). See Also: NumberAxis.getMarkerBand() |
setNumberFormatOverride | public void setNumberFormatOverride(NumberFormat formatter)(Code) | | Sets the number format override. If this is non-null, then it will be
used to format the numbers on the axis.
Parameters: formatter - the number formatter (null permitted). See Also: NumberAxis.getNumberFormatOverride() |
setTickUnit | public void setTickUnit(NumberTickUnit unit, boolean notify, boolean turnOffAutoSelect)(Code) | | Sets the tick unit for the axis and, if requested, sends an
AxisChangeEvent to all registered listeners. In addition, an
option is provided to turn off the "auto-select" feature for tick units
(you can restore it using the
ValueAxis.setAutoTickUnitSelection(boolean) method).
Parameters: unit - the new tick unit (null not permitted). Parameters: notify - notify listeners? Parameters: turnOffAutoSelect - turn off the auto-tick selection? |
valueToJava2D | public double valueToJava2D(double value, Rectangle2D area, RectangleEdge edge)(Code) | | Converts a data value to a coordinate in Java2D space, assuming that the
axis runs along one edge of the specified dataArea.
Note that it is possible for the coordinate to fall outside the plotArea.
Parameters: value - the data value. Parameters: area - the area for plotting the data. Parameters: edge - the axis location. The Java2D coordinate. See Also: NumberAxis.java2DToValue(double,Rectangle2D,RectangleEdge) |
Methods inherited from org.jfree.chart.axis.ValueAxis | abstract protected void autoAdjustRange()(Code)(Java Doc) protected float[] calculateAnchorPoint(ValueTick tick, double cursor, Rectangle2D dataArea, RectangleEdge edge)(Code)(Java Doc) public void centerRange(double value)(Code)(Java Doc) public Object clone() throws CloneNotSupportedException(Code)(Java Doc) protected void drawAxisLine(Graphics2D g2, double cursor, Rectangle2D dataArea, RectangleEdge edge)(Code)(Java Doc) protected AxisState drawTickMarksAndLabels(Graphics2D g2, double cursor, Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge)(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected double findMaximumTickLabelHeight(List ticks, Graphics2D g2, Rectangle2D drawArea, boolean vertical)(Code)(Java Doc) protected double findMaximumTickLabelWidth(List ticks, Graphics2D g2, Rectangle2D drawArea, boolean vertical)(Code)(Java Doc) public double getAutoRangeMinimumSize()(Code)(Java Doc) protected int getAutoTickIndex()(Code)(Java Doc) public Range getDefaultAutoRange()(Code)(Java Doc) public Shape getDownArrow()(Code)(Java Doc) public double getFixedAutoRange()(Code)(Java Doc) public Shape getLeftArrow()(Code)(Java Doc) public double getLowerBound()(Code)(Java Doc) public double getLowerMargin()(Code)(Java Doc) public Range getRange()(Code)(Java Doc) public Shape getRightArrow()(Code)(Java Doc) public TickUnitSource getStandardTickUnits()(Code)(Java Doc) public Shape getUpArrow()(Code)(Java Doc) public double getUpperBound()(Code)(Java Doc) public double getUpperMargin()(Code)(Java Doc) public boolean isAutoRange()(Code)(Java Doc) public boolean isAutoTickUnitSelection()(Code)(Java Doc) public boolean isInverted()(Code)(Java Doc) public boolean isNegativeArrowVisible()(Code)(Java Doc) public boolean isPositiveArrowVisible()(Code)(Java Doc) public boolean isVerticalTickLabels()(Code)(Java Doc) abstract public double java2DToValue(double java2DValue, Rectangle2D area, RectangleEdge edge)(Code)(Java Doc) public double lengthToJava2D(double length, Rectangle2D area, RectangleEdge edge)(Code)(Java Doc) public AxisSpace reserveSpace(Graphics2D g2, Plot plot, Rectangle2D plotArea, RectangleEdge edge, AxisSpace space)(Code)(Java Doc) public void resizeRange(double percent)(Code)(Java Doc) public void resizeRange(double percent, double anchorValue)(Code)(Java Doc) public void setAutoRange(boolean auto)(Code)(Java Doc) protected void setAutoRange(boolean auto, boolean notify)(Code)(Java Doc) public void setAutoRangeMinimumSize(double size)(Code)(Java Doc) public void setAutoRangeMinimumSize(double size, boolean notify)(Code)(Java Doc) protected void setAutoTickIndex(int index)(Code)(Java Doc) public void setAutoTickUnitSelection(boolean flag)(Code)(Java Doc) public void setAutoTickUnitSelection(boolean flag, boolean notify)(Code)(Java Doc) public void setDefaultAutoRange(Range range)(Code)(Java Doc) public void setDownArrow(Shape arrow)(Code)(Java Doc) public void setFixedAutoRange(double length)(Code)(Java Doc) public void setInverted(boolean flag)(Code)(Java Doc) public void setLeftArrow(Shape arrow)(Code)(Java Doc) public void setLowerBound(double min)(Code)(Java Doc) public void setLowerMargin(double margin)(Code)(Java Doc) public void setNegativeArrowVisible(boolean visible)(Code)(Java Doc) public void setPositiveArrowVisible(boolean visible)(Code)(Java Doc) public void setRange(Range range)(Code)(Java Doc) public void setRange(Range range, boolean turnOffAutoRange, boolean notify)(Code)(Java Doc) public void setRange(double lower, double upper)(Code)(Java Doc) public void setRangeAboutValue(double value, double length)(Code)(Java Doc) public void setRangeWithMargins(Range range)(Code)(Java Doc) public void setRangeWithMargins(Range range, boolean turnOffAutoRange, boolean notify)(Code)(Java Doc) public void setRangeWithMargins(double lower, double upper)(Code)(Java Doc) public void setRightArrow(Shape arrow)(Code)(Java Doc) public void setStandardTickUnits(TickUnitSource source)(Code)(Java Doc) public void setUpArrow(Shape arrow)(Code)(Java Doc) public void setUpperBound(double max)(Code)(Java Doc) public void setUpperMargin(double margin)(Code)(Java Doc) public void setVerticalTickLabels(boolean flag)(Code)(Java Doc) abstract public double valueToJava2D(double value, Rectangle2D area, RectangleEdge edge)(Code)(Java Doc) public void zoomRange(double lowerPercent, double upperPercent)(Code)(Java Doc)
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Methods inherited from org.jfree.chart.axis.Axis | public void addChangeListener(AxisChangeListener listener)(Code)(Java Doc) public Object clone() throws CloneNotSupportedException(Code)(Java Doc) abstract public void configure()(Code)(Java Doc) abstract public AxisState draw(Graphics2D g2, double cursor, Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge, PlotRenderingInfo plotState)(Code)(Java Doc) protected void drawAxisLine(Graphics2D g2, double cursor, Rectangle2D dataArea, RectangleEdge edge)(Code)(Java Doc) protected AxisState drawLabel(String label, Graphics2D g2, Rectangle2D plotArea, Rectangle2D dataArea, RectangleEdge edge, AxisState state)(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) public Paint getAxisLinePaint()(Code)(Java Doc) public Stroke getAxisLineStroke()(Code)(Java Doc) public double getFixedDimension()(Code)(Java Doc) public String getLabel()(Code)(Java Doc) public double getLabelAngle()(Code)(Java Doc) protected Rectangle2D getLabelEnclosure(Graphics2D g2, RectangleEdge edge)(Code)(Java Doc) public Font getLabelFont()(Code)(Java Doc) public RectangleInsets getLabelInsets()(Code)(Java Doc) public Paint getLabelPaint()(Code)(Java Doc) public Plot getPlot()(Code)(Java Doc) public Font getTickLabelFont()(Code)(Java Doc) public RectangleInsets getTickLabelInsets()(Code)(Java Doc) public Paint getTickLabelPaint()(Code)(Java Doc) public float getTickMarkInsideLength()(Code)(Java Doc) public float getTickMarkOutsideLength()(Code)(Java Doc) public Paint getTickMarkPaint()(Code)(Java Doc) public Stroke getTickMarkStroke()(Code)(Java Doc) public boolean hasListener(EventListener listener)(Code)(Java Doc) public boolean isAxisLineVisible()(Code)(Java Doc) public boolean isTickLabelsVisible()(Code)(Java Doc) public boolean isTickMarksVisible()(Code)(Java Doc) public boolean isVisible()(Code)(Java Doc) protected void notifyListeners(AxisChangeEvent event)(Code)(Java Doc) abstract public List refreshTicks(Graphics2D g2, AxisState state, Rectangle2D dataArea, RectangleEdge edge)(Code)(Java Doc) public void removeChangeListener(AxisChangeListener listener)(Code)(Java Doc) abstract public AxisSpace reserveSpace(Graphics2D g2, Plot plot, Rectangle2D plotArea, RectangleEdge edge, AxisSpace space)(Code)(Java Doc) public void setAxisLinePaint(Paint paint)(Code)(Java Doc) public void setAxisLineStroke(Stroke stroke)(Code)(Java Doc) public void setAxisLineVisible(boolean visible)(Code)(Java Doc) public void setFixedDimension(double dimension)(Code)(Java Doc) public void setLabel(String label)(Code)(Java Doc) public void setLabelAngle(double angle)(Code)(Java Doc) public void setLabelFont(Font font)(Code)(Java Doc) public void setLabelInsets(RectangleInsets insets)(Code)(Java Doc) public void setLabelPaint(Paint paint)(Code)(Java Doc) public void setPlot(Plot plot)(Code)(Java Doc) public void setTickLabelFont(Font font)(Code)(Java Doc) public void setTickLabelInsets(RectangleInsets insets)(Code)(Java Doc) public void setTickLabelPaint(Paint paint)(Code)(Java Doc) public void setTickLabelsVisible(boolean flag)(Code)(Java Doc) public void setTickMarkInsideLength(float length)(Code)(Java Doc) public void setTickMarkOutsideLength(float length)(Code)(Java Doc) public void setTickMarkPaint(Paint paint)(Code)(Java Doc) public void setTickMarkStroke(Stroke stroke)(Code)(Java Doc) public void setTickMarksVisible(boolean flag)(Code)(Java Doc) public void setVisible(boolean flag)(Code)(Java Doc)
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