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## org.jfree.chart.axis
Class SymbolAxis

    java.lang.Object
      org.jfree.chart.axis.Axis
          org.jfree.chart.axis.ValueAxis
              org.jfree.chart.axis.NumberAxis
                  org.jfree.chart.axis.SymbolAxis

All Implemented Interfaces:
  java.io.Serializable, java.lang.Cloneable, org.jfree.util.PublicCloneable

    public class SymbolAxis

extends NumberAxis
implements java.io.Serializable

A standard linear value axis that replaces integer values with symbols.

See Also:
  Serialized Form

Field Summary
`static java.awt.Paint` | `DEFAULT_GRID_BAND_ALTERNATE_PAINT` The default paint for alternate grid bands.
`static java.awt.Paint` | `DEFAULT_GRID_BAND_PAINT` The default grid band paint.

Fields inherited from class org.jfree.chart.axis.NumberAxis
`DEFAULT_AUTO_RANGE_INCLUDES_ZERO, DEFAULT_AUTO_RANGE_STICKY_ZERO, DEFAULT_TICK_UNIT, DEFAULT_VERTICAL_TICK_LABELS`

Fields inherited from class org.jfree.chart.axis.ValueAxis
`DEFAULT_AUTO_RANGE, DEFAULT_AUTO_RANGE_MINIMUM_SIZE, DEFAULT_AUTO_TICK_UNIT_SELECTION, DEFAULT_INVERTED, DEFAULT_LOWER_BOUND, DEFAULT_LOWER_MARGIN, DEFAULT_RANGE, DEFAULT_UPPER_BOUND, DEFAULT_UPPER_MARGIN, MAXIMUM_TICK_COUNT`

Fields inherited from class org.jfree.chart.axis.Axis
`DEFAULT_AXIS_LABEL_FONT, DEFAULT_AXIS_LABEL_INSETS, DEFAULT_AXIS_LABEL_PAINT, DEFAULT_AXIS_LINE_PAINT, DEFAULT_AXIS_LINE_STROKE, DEFAULT_AXIS_VISIBLE, DEFAULT_TICK_LABEL_FONT, DEFAULT_TICK_LABEL_INSETS, DEFAULT_TICK_LABEL_PAINT, DEFAULT_TICK_LABELS_VISIBLE, DEFAULT_TICK_MARK_INSIDE_LENGTH, DEFAULT_TICK_MARK_OUTSIDE_LENGTH, DEFAULT_TICK_MARK_PAINT, DEFAULT_TICK_MARK_STROKE, DEFAULT_TICK_MARKS_VISIBLE`

Constructor Summary
`SymbolAxis(java.lang.String label, java.lang.String[] sv)` Constructs a symbol axis, using default attribute values where necessary.

Method Summary
`protected void` | `autoAdjustRange()` Rescales the axis to ensure that all data is visible.
`AxisState` | `draw(java.awt.Graphics2D g2, double cursor, java.awt.geom.Rectangle2D plotArea, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge, PlotRenderingInfo plotState)` Draws the axis on a Java 2D graphics device (such as the screen or a printer).
`protected void` | `drawGridBands(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D plotArea, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge, java.util.List ticks)` Draws the grid bands.
`protected void` | `drawGridBandsHorizontal(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D plotArea, java.awt.geom.Rectangle2D dataArea, boolean firstGridBandIsDark, java.util.List ticks)` Draws the grid bands for the axis when it is at the top or bottom of the plot.
`protected void` | `drawGridBandsVertical(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D drawArea, java.awt.geom.Rectangle2D plotArea, boolean firstGridBandIsDark, java.util.List ticks)` Draws the grid bands for the axis when it is at the top or bottom of the plot.
`boolean` | `equals(java.lang.Object obj)` Tests this axis for equality with an arbitrary object.
`java.awt.Paint` | `getGridBandAlternatePaint()` Returns the paint used for alternate grid bands.
`java.awt.Paint` | `getGridBandPaint()` Returns the paint used to color the grid bands.
`java.lang.String[]` | `getSymbols()` Returns an array of the symbols for the axis.
`boolean` | `isGridBandsVisible()` Returns `true` if the grid bands are showing, and `false` otherwise.
`java.util.List` | `refreshTicks(java.awt.Graphics2D g2, AxisState state, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge)` Calculates the positions of the tick labels for the axis, storing the results in the tick label list (ready for drawing).
`protected java.util.List` | `refreshTicksHorizontal(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge)` Calculates the positions of the tick labels for the axis, storing the results in the tick label list (ready for drawing).
`protected java.util.List` | `refreshTicksVertical(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge)` Calculates the positions of the tick labels for the axis, storing the results in the tick label list (ready for drawing).
`protected void` | `selectAutoTickUnit(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, org.jfree.ui.RectangleEdge edge)` This operation is not supported by this axis.
`void` | `setGridBandAlternatePaint(java.awt.Paint paint)` Sets the paint used for alternate grid bands and sends a `AxisChangeEvent` to all registered listeners.
`void` | `setGridBandPaint(java.awt.Paint paint)` Sets the grid band paint and sends an `AxisChangeEvent` to all registered listeners.
`void` | `setGridBandsVisible(boolean flag)` Sets the visibility of the grid bands and notifies registered listeners that the axis has been modified.
`java.lang.String` | `valueToString(double value)` Converts a value to a string, using the list of symbols.

Methods inherited from class org.jfree.chart.axis.NumberAxis
`calculateHighestVisibleTickValue, calculateLowestVisibleTickValue, calculateVisibleTickCount, clone, configure, createIntegerTickUnits, createIntegerTickUnits, createStandardTickUnits, createStandardTickUnits, estimateMaximumTickLabelHeight, estimateMaximumTickLabelWidth, getAutoRangeIncludesZero, getAutoRangeStickyZero, getMarkerBand, getNumberFormatOverride, getRangeType, getTickUnit, hashCode, java2DToValue, selectHorizontalAutoTickUnit, selectVerticalAutoTickUnit, setAutoRangeIncludesZero, setAutoRangeStickyZero, setMarkerBand, setNumberFormatOverride, setRangeType, setTickUnit, setTickUnit, valueToJava2D`

Methods inherited from class org.jfree.chart.axis.ValueAxis
`calculateAnchorPoint, centerRange, drawAxisLine, drawTickMarksAndLabels, findMaximumTickLabelHeight, findMaximumTickLabelWidth, getAutoRangeMinimumSize, getAutoTickIndex, getDefaultAutoRange, getDownArrow, getFixedAutoRange, getLeftArrow, getLowerBound, getLowerMargin, getMinorTickCount, getRange, getRightArrow, getStandardTickUnits, getUpArrow, getUpperBound, getUpperMargin, isAutoRange, isAutoTickUnitSelection, isInverted, isNegativeArrowVisible, isPositiveArrowVisible, isVerticalTickLabels, lengthToJava2D, pan, reserveSpace, resizeRange, resizeRange, resizeRange2, setAutoRange, setAutoRange, setAutoRangeMinimumSize, setAutoRangeMinimumSize, setAutoTickIndex, setAutoTickUnitSelection, setAutoTickUnitSelection, setDefaultAutoRange, setDownArrow, setFixedAutoRange, setInverted, setLeftArrow, setLowerBound, setLowerMargin, setMinorTickCount, setNegativeArrowVisible, setPositiveArrowVisible, setRange, setRange, setRange, setRangeAboutValue, setRangeWithMargins, setRangeWithMargins, setRangeWithMargins, setRightArrow, setStandardTickUnits, setUpArrow, setUpperBound, setUpperMargin, setVerticalTickLabels, zoomRange`

Methods inherited from class org.jfree.chart.axis.Axis
`addChangeListener, createAndAddEntity, drawLabel, fireChangeEvent, getAxisLinePaint, getAxisLineStroke, getFixedDimension, getLabel, getLabelAngle, getLabelEnclosure, getLabelFont, getLabelInsets, getLabelPaint, getMinorTickMarkInsideLength, getMinorTickMarkOutsideLength, getPlot, getTickLabelFont, getTickLabelInsets, getTickLabelPaint, getTickMarkInsideLength, getTickMarkOutsideLength, getTickMarkPaint, getTickMarkStroke, hasListener, isAxisLineVisible, isMinorTickMarksVisible, isTickLabelsVisible, isTickMarksVisible, isVisible, notifyListeners, removeChangeListener, setAxisLinePaint, setAxisLineStroke, setAxisLineVisible, setFixedDimension, setLabel, setLabelAngle, setLabelFont, setLabelInsets, setLabelInsets, setLabelPaint, setMinorTickMarkInsideLength, setMinorTickMarkOutsideLength, setMinorTickMarksVisible, setPlot, setTickLabelFont, setTickLabelInsets, setTickLabelPaint, setTickLabelsVisible, setTickMarkInsideLength, setTickMarkOutsideLength, setTickMarkPaint, setTickMarkStroke, setTickMarksVisible, setVisible`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### DEFAULT_GRID_BAND_PAINT

    public static final java.awt.Paint DEFAULT_GRID_BAND_PAINT

  The default grid band paint.

### DEFAULT_GRID_BAND_ALTERNATE_PAINT

    public static final java.awt.Paint DEFAULT_GRID_BAND_ALTERNATE_PAINT

  The default paint for alternate grid bands.

  Since:
    1.0.7

Constructor Detail

### SymbolAxis

    public SymbolAxis(java.lang.String label,
                      java.lang.String[] sv)

  Constructs a symbol axis, using default attribute values where necessary.

  Parameters:
    `label` - the axis label (`null` permitted).
    `sv` - the list of symbols to display instead of the numeric values.

Method Detail

### getSymbols

    public java.lang.String[] getSymbols()

  Returns an array of the symbols for the axis.

  Returns:
    The symbols.

### isGridBandsVisible

    public boolean isGridBandsVisible()

  Returns `true` if the grid bands are showing, and `false` otherwise.

  Returns:
    `true` if the grid bands are showing, and `false` otherwise.
  See Also:
    `setGridBandsVisible(boolean)`

### setGridBandsVisible

    public void setGridBandsVisible(boolean flag)

  Sets the visibility of the grid bands and notifies registered listeners that the axis has been modified.

  Parameters:
    `flag` - the new setting.
  See Also:
    `isGridBandsVisible()`

### getGridBandPaint

    public java.awt.Paint getGridBandPaint()

  Returns the paint used to color the grid bands.

  Returns:
    The grid band paint (never `null`).
  See Also:
    `setGridBandPaint(Paint)`, `isGridBandsVisible()`

### setGridBandPaint

    public void setGridBandPaint(java.awt.Paint paint)

  Sets the grid band paint and sends an `AxisChangeEvent` to all registered listeners.

  Parameters:
    `paint` - the paint (`null` not permitted).
  See Also:
    `getGridBandPaint()`

### getGridBandAlternatePaint

    public java.awt.Paint getGridBandAlternatePaint()

  Returns the paint used for alternate grid bands.

  Returns:
    The paint (never `null`).
  Since:
    1.0.7
  See Also:
    `setGridBandAlternatePaint(Paint)`, `getGridBandPaint()`

### setGridBandAlternatePaint

    public void setGridBandAlternatePaint(java.awt.Paint paint)

  Sets the paint used for alternate grid bands and sends a `AxisChangeEvent` to all registered listeners.

  Parameters:
    `paint` - the paint (`null` not permitted).
  Since:
    1.0.7
  See Also:
    `getGridBandAlternatePaint()`, `setGridBandPaint(Paint)`

### selectAutoTickUnit

    protected void selectAutoTickUnit(java.awt.Graphics2D g2,
                                      java.awt.geom.Rectangle2D dataArea,
                                      org.jfree.ui.RectangleEdge edge)

  This operation is not supported by this axis.

  Overrides:
    `selectAutoTickUnit` in class `NumberAxis`
  Parameters:
    `g2` - the graphics device.
    `dataArea` - the area in which the plot and axes should be drawn.
    `edge` - the edge along which the axis is drawn.

### draw

    public AxisState draw(java.awt.Graphics2D g2,
                          double cursor,
                          java.awt.geom.Rectangle2D plotArea,
                          java.awt.geom.Rectangle2D dataArea,
                          org.jfree.ui.RectangleEdge edge,
                          PlotRenderingInfo plotState)

  Draws the axis on a Java 2D graphics device (such as the screen or a printer).

  Overrides:
    `draw` in class `NumberAxis`
  Parameters:
    `g2` - the graphics device (`null` not permitted).
    `cursor` - the cursor location.
    `plotArea` - the area within which the plot and axes should be drawn (`null` not permitted).
    `dataArea` - the area within which the data should be drawn (`null` not permitted).
    `edge` - the axis location (`null` not permitted).
    `plotState` - collects information about the plot (`null` permitted).
  Returns:
    The axis state (never `null`).

### drawGridBands

    protected void drawGridBands(java.awt.Graphics2D g2,
                                 java.awt.geom.Rectangle2D plotArea,
                                 java.awt.geom.Rectangle2D dataArea,
                                 org.jfree.ui.RectangleEdge edge,
                                 java.util.List ticks)

  Draws the grid bands. Alternate bands are colored using `gridBandPaint`(`DEFAULT_GRID_BAND_PAINT` by default).

  ``
  Parameters:
    `g2` - the graphics device.
    `plotArea` - the area within which the chart should be drawn.
    `dataArea` - the area within which the plot should be drawn (a subset of the drawArea).
    `edge` - the axis location.
    `ticks` - the ticks.

### drawGridBandsHorizontal

    protected void drawGridBandsHorizontal(java.awt.Graphics2D g2,
                                           java.awt.geom.Rectangle2D plotArea,
                                           java.awt.geom.Rectangle2D dataArea,
                                           boolean firstGridBandIsDark,
                                           java.util.List ticks)

  Draws the grid bands for the axis when it is at the top or bottom of the plot.

  Parameters:
    `g2` - the graphics device.
    `plotArea` - the area within which the chart should be drawn.
    `dataArea` - the area within which the plot should be drawn (a subset of the drawArea).
    `firstGridBandIsDark` - True: the first grid band takes the color of `gridBandPaint`. False: the second grid band takes the color of `gridBandPaint`.````
    `ticks` - the ticks.

### drawGridBandsVertical

    protected void drawGridBandsVertical(java.awt.Graphics2D g2,
                                         java.awt.geom.Rectangle2D drawArea,
                                         java.awt.geom.Rectangle2D plotArea,
                                         boolean firstGridBandIsDark,
                                         java.util.List ticks)

  Draws the grid bands for the axis when it is at the top or bottom of the plot.

  Parameters:
    `g2` - the graphics device.
    `drawArea` - the area within which the chart should be drawn.
    `plotArea` - the area within which the plot should be drawn (a subset of the drawArea).
    `firstGridBandIsDark` - True: the first grid band takes the color of `gridBandPaint`. False: the second grid band takes the color of `gridBandPaint`.````
    `ticks` - a list of ticks.

### autoAdjustRange

    protected void autoAdjustRange()

  Rescales the axis to ensure that all data is visible.

  Overrides:
    `autoAdjustRange` in class `NumberAxis`

### refreshTicks

    public java.util.List refreshTicks(java.awt.Graphics2D g2,
                                       AxisState state,
                                       java.awt.geom.Rectangle2D dataArea,
                                       org.jfree.ui.RectangleEdge edge)

  Calculates the positions of the tick labels for the axis, storing the results in the tick label list (ready for drawing).

  Overrides:
    `refreshTicks` in class `NumberAxis`
  Parameters:
    `g2` - the graphics device.
    `state` - the axis state.
    `dataArea` - the area in which the data should be drawn.
    `edge` - the location of the axis.
  Returns:
    A list of ticks.

### refreshTicksHorizontal

    protected java.util.List refreshTicksHorizontal(java.awt.Graphics2D g2,
                                                    java.awt.geom.Rectangle2D dataArea,
                                                    org.jfree.ui.RectangleEdge edge)

  Calculates the positions of the tick labels for the axis, storing the results in the tick label list (ready for drawing).

  Overrides:
    `refreshTicksHorizontal` in class `NumberAxis`
  Parameters:
    `g2` - the graphics device.
    `dataArea` - the area in which the data should be drawn.
    `edge` - the location of the axis.
  Returns:
    The ticks.

### refreshTicksVertical

    protected java.util.List refreshTicksVertical(java.awt.Graphics2D g2,
                                                  java.awt.geom.Rectangle2D dataArea,
                                                  org.jfree.ui.RectangleEdge edge)

  Calculates the positions of the tick labels for the axis, storing the results in the tick label list (ready for drawing).

  Overrides:
    `refreshTicksVertical` in class `NumberAxis`
  Parameters:
    `g2` - the graphics device.
    `dataArea` - the area in which the plot should be drawn.
    `edge` - the location of the axis.
  Returns:
    The ticks.

### valueToString

    public java.lang.String valueToString(double value)

  Converts a value to a string, using the list of symbols.

  Parameters:
    `value` - value to convert.
  Returns:
    The symbol.

### equals

    public boolean equals(java.lang.Object obj)

  Tests this axis for equality with an arbitrary object.

  Overrides:
    `equals` in class `NumberAxis`
  Parameters:
    `obj` - the object (`null` permitted).
  Returns:
    A boolean.

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