java.lang.Object
- org.jfree.chart.plot.Plot
- - org.jfree.chart.plot.MeterPlot

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.EventListener, AnnotationChangeListener, AxisChangeListener, MarkerChangeListener, LegendItemSource, PublicCloneable, DatasetChangeListener
```
public class MeterPlot
extends Plot
implements java.io.Serializable, java.lang.Cloneable
```
A plot that displays a single value in the form of a needle on a dial. Defined ranges (for example, 'normal', 'warning' and 'critical') can be highlighted on the dial.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`private ValueDataset`	`dataset`	The dataset (contains a single value).
`static float`	`DEFAULT_BORDER_SIZE`	The default border size.
`static float`	`DEFAULT_CIRCLE_SIZE`	The default circle size.
`(package private) static java.awt.Paint`	`DEFAULT_DIAL_BACKGROUND_PAINT`	The default background paint.
`static java.awt.Font`	`DEFAULT_LABEL_FONT`	The default label font.
`static int`	`DEFAULT_METER_ANGLE`	The default meter angle.
`(package private) static java.awt.Paint`	`DEFAULT_NEEDLE_PAINT`	The default needle paint.
`(package private) static java.awt.Font`	`DEFAULT_VALUE_FONT`	The default value font.
`(package private) static java.awt.Paint`	`DEFAULT_VALUE_PAINT`	The default value paint.
`private java.awt.Paint`	`dialBackgroundPaint`	The paint for the dial background.
`private java.awt.Paint`	`dialOutlinePaint`	The outline paint.
`private boolean`	`drawBorder`	A flag that controls whether or not the border is drawn.
`private java.util.List<MeterInterval>`	`intervals`	A (possibly empty) list of the `MeterInterval`s to be highlighted on the dial.
`protected static java.util.ResourceBundle`	`localizationResources`	The resourceBundle for the localization.
`private int`	`meterAngle`	The dial extent (measured in degrees).
`private java.awt.Paint`	`needlePaint`	The paint for the needle.
`private Range`	`range`	The overall range of data values on the dial.
`private static long`	`serialVersionUID`	For serialization.
`private DialShape`	`shape`	The dial shape (background shape).
`private java.awt.Font`	`tickLabelFont`	The tick label font.
`private java.text.NumberFormat`	`tickLabelFormat`	The tick label format.
`private java.awt.Paint`	`tickLabelPaint`	The tick label paint.
`private boolean`	`tickLabelsVisible`	A flag that controls whether or not the tick labels are visible.
`private java.awt.Paint`	`tickPaint`	The paint used to draw the ticks.
`private double`	`tickSize`	The tick size.
`private java.lang.String`	`units`	The units displayed on the dial.
`private java.awt.Font`	`valueFont`	The font for the value displayed in the center of the dial.
`private java.awt.Paint`	`valuePaint`	The paint for the value displayed in the center of the dial.
`private boolean`	`valueVisible`	A flag that indicates whether the value is visible.

Fields inherited from class org.jfree.chart.plot.Plot
DEFAULT_BACKGROUND_ALPHA, DEFAULT_BACKGROUND_PAINT, DEFAULT_FOREGROUND_ALPHA, DEFAULT_INSETS, DEFAULT_LEGEND_ITEM_BOX, DEFAULT_LEGEND_ITEM_CIRCLE, DEFAULT_OUTLINE_PAINT, DEFAULT_OUTLINE_STROKE, MINIMUM_HEIGHT_TO_DRAW, MINIMUM_WIDTH_TO_DRAW, ZERO

Constructor Summary

Constructors
Constructor	Description
`MeterPlot()`	Creates a new plot with a default range of `0` to `100` and no value to display.
`MeterPlot(ValueDataset dataset)`	Creates a new plot that displays the value from the supplied dataset.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addInterval(MeterInterval interval)`	Adds an interval and sends a `PlotChangeEvent` to all registered listeners.
`void`	`clearIntervals()`	Clears the intervals for the plot and sends a `PlotChangeEvent` to all registered listeners.
`java.lang.Object`	`clone()`	Returns an independent copy (clone) of the plot.
`void`	`draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, java.awt.geom.Point2D anchor, PlotState parentState, PlotRenderingInfo info)`	Draws the plot on a Java 2D graphics device (such as the screen or a printer).
`protected void`	`drawArc(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, double minValue, double maxValue, java.awt.Paint paint, java.awt.Stroke stroke)`	Draws an arc.
`protected void`	`drawArcForInterval(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D meterArea, MeterInterval interval)`	Draws the arc to represent an interval.
`protected void`	`drawTick(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D meterArea, double value)`	Draws a tick.
`protected void`	`drawTick(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D meterArea, double value, boolean label)`	Draws a tick on the dial.
`protected void`	`drawTicks(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D meterArea, double minValue, double maxValue)`	Draws the ticks that subdivide the overall range.
`protected void`	`drawValueLabel(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area)`	Draws the value label just below the center of the dial.
`boolean`	`equals(java.lang.Object obj)`	Tests the plot for equality with an arbitrary object.
`protected void`	`fillArc(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, double minValue, double maxValue, java.awt.Paint paint, boolean dial)`	Fills an arc on the dial between the given values.
`ValueDataset`	`getDataset()`	Returns the dataset for the plot.
`java.awt.Paint`	`getDialBackgroundPaint()`	Returns the paint for the dial background.
`java.awt.Paint`	`getDialOutlinePaint()`	Returns the dial outline paint.
`DialShape`	`getDialShape()`	Returns the dial shape.
`boolean`	`getDrawBorder()`	Returns a flag that controls whether or not a rectangular border is drawn around the plot area.
`java.util.List<MeterInterval>`	`getIntervals()`	Returns an unmodifiable list of the intervals for the plot.
`LegendItemCollection`	`getLegendItems()`	Returns an item for each interval.
`int`	`getMeterAngle()`	Returns the meter angle in degrees.
`java.awt.Paint`	`getNeedlePaint()`	Returns the paint for the needle.
`java.lang.String`	`getPlotType()`	Returns a short string describing the type of plot.
`Range`	`getRange()`	Returns the overall range for the dial.
`java.awt.Font`	`getTickLabelFont()`	Returns the tick label font.
`java.text.NumberFormat`	`getTickLabelFormat()`	Returns the tick label format.
`java.awt.Paint`	`getTickLabelPaint()`	Returns the tick label paint.
`boolean`	`getTickLabelsVisible()`	Returns the flag that determines whether or not tick labels are visible.
`java.awt.Paint`	`getTickPaint()`	Returns the paint used to draw the ticks around the dial.
`double`	`getTickSize()`	Returns the tick size (the interval between ticks on the dial).
`java.lang.String`	`getUnits()`	Returns a string describing the units for the dial.
`java.awt.Font`	`getValueFont()`	Returns the font for the value label.
`java.awt.Paint`	`getValuePaint()`	Returns the paint for the value label.
`boolean`	`isValueVisible()`	Returns the flag that controls whether or not the value is visible.
`private void`	`readObject(java.io.ObjectInputStream stream)`	Provides serialization support.
`void`	`setDataset(ValueDataset dataset)`	Sets the dataset for the plot, replacing the existing dataset if there is one, and triggers a `PlotChangeEvent`.
`void`	`setDialBackgroundPaint(java.awt.Paint paint)`	Sets the paint used to fill the dial background.
`void`	`setDialOutlinePaint(java.awt.Paint paint)`	Sets the dial outline paint and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setDialShape(DialShape shape)`	Sets the dial shape and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setDrawBorder(boolean draw)`	Sets the flag that controls whether or not a rectangular border is drawn around the plot area and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setMeterAngle(int angle)`	Sets the angle (in degrees) for the whole range of the dial and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setNeedlePaint(java.awt.Paint paint)`	Sets the paint used to display the needle and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setRange(Range range)`	Sets the range for the dial and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setTickLabelFont(java.awt.Font font)`	Sets the tick label font and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setTickLabelFormat(java.text.NumberFormat format)`	Sets the format for the tick labels and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setTickLabelPaint(java.awt.Paint paint)`	Sets the tick label paint and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setTickLabelsVisible(boolean visible)`	Sets the flag that controls whether or not the tick labels are visible and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setTickPaint(java.awt.Paint paint)`	Sets the paint used to draw the tick labels around the dial and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setTickSize(double size)`	Sets the tick size and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setUnits(java.lang.String units)`	Sets the units for the dial and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setValueFont(java.awt.Font font)`	Sets the font used to display the value label and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setValuePaint(java.awt.Paint paint)`	Sets the paint used to display the value label and sends a `PlotChangeEvent` to all registered listeners.
`void`	`setValueVisible(boolean valueVisible)`	Sets the flag that controls whether or not the value is visible and sends a change event to all registered listeners.
`double`	`valueToAngle(double value)`	Translates a data value to an angle on the dial.
`private void`	`writeObject(java.io.ObjectOutputStream stream)`	Provides serialization support.
`void`	`zoom(double percent)`	A zoom method that does nothing.

Methods inherited from class org.jfree.chart.plot.Plot
addChangeListener, annotationChanged, axisChanged, canEqual, createAndAddEntity, datasetChanged, drawBackground, drawBackgroundImage, drawNoDataMessage, drawOutline, fetchElementHintingFlag, fillBackground, fillBackground, fireChangeEvent, getBackgroundAlpha, getBackgroundImage, getBackgroundImageAlignment, getBackgroundImageAlpha, getBackgroundPaint, getChart, getDatasetGroup, getDrawingSupplier, getForegroundAlpha, getInsets, getNoDataMessage, getNoDataMessageFont, getNoDataMessagePaint, getOutlinePaint, getOutlineStroke, getParent, getRectX, getRectY, getRootPlot, handleClick, hashCode, isNotify, isOutlineVisible, isSubplot, markerChanged, notifyListeners, removeChangeListener, resolveDomainAxisLocation, resolveRangeAxisLocation, setBackgroundAlpha, setBackgroundImage, setBackgroundImageAlignment, setBackgroundImageAlpha, setBackgroundPaint, setChart, setDatasetGroup, setDrawingSupplier, setDrawingSupplier, setForegroundAlpha, setInsets, setInsets, setNoDataMessage, setNoDataMessageFont, setNoDataMessagePaint, setNotify, setOutlinePaint, setOutlineStroke, setOutlineVisible, setParent

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

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    For serialization.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_DIAL_BACKGROUND_PAINT
```
static final java.awt.Paint DEFAULT_DIAL_BACKGROUND_PAINT
```
    The default background paint.
  - DEFAULT_NEEDLE_PAINT
```
static final java.awt.Paint DEFAULT_NEEDLE_PAINT
```
    The default needle paint.
  - DEFAULT_VALUE_FONT
```
static final java.awt.Font DEFAULT_VALUE_FONT
```
    The default value font.
  - DEFAULT_VALUE_PAINT
```
static final java.awt.Paint DEFAULT_VALUE_PAINT
```
    The default value paint.
  - DEFAULT_METER_ANGLE
```
public static final int DEFAULT_METER_ANGLE
```
    The default meter angle.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_BORDER_SIZE
```
public static final float DEFAULT_BORDER_SIZE
```
    The default border size.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_CIRCLE_SIZE
```
public static final float DEFAULT_CIRCLE_SIZE
```
    The default circle size.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_LABEL_FONT
```
public static final java.awt.Font DEFAULT_LABEL_FONT
```
    The default label font.
  - dataset
```
private ValueDataset dataset
```
    The dataset (contains a single value).
  - shape
```
private DialShape shape
```
    The dial shape (background shape).
  - meterAngle
```
private int meterAngle
```
    The dial extent (measured in degrees).
  - range
```
private Range range
```
    The overall range of data values on the dial.
  - tickSize
```
private double tickSize
```
    The tick size.
  - tickPaint
```
private transient java.awt.Paint tickPaint
```
    The paint used to draw the ticks.
  - units
```
private java.lang.String units
```
    The units displayed on the dial.
  - valueFont
```
private java.awt.Font valueFont
```
    The font for the value displayed in the center of the dial.
  - valuePaint
```
private transient java.awt.Paint valuePaint
```
    The paint for the value displayed in the center of the dial.
  - valueVisible
```
private boolean valueVisible
```
    A flag that indicates whether the value is visible.
  - drawBorder
```
private boolean drawBorder
```
    A flag that controls whether or not the border is drawn.
  - dialOutlinePaint
```
private transient java.awt.Paint dialOutlinePaint
```
    The outline paint.
  - dialBackgroundPaint
```
private transient java.awt.Paint dialBackgroundPaint
```
    The paint for the dial background.
  - needlePaint
```
private transient java.awt.Paint needlePaint
```
    The paint for the needle.
  - tickLabelsVisible
```
private boolean tickLabelsVisible
```
    A flag that controls whether or not the tick labels are visible.
  - tickLabelFont
```
private java.awt.Font tickLabelFont
```
    The tick label font.
  - tickLabelPaint
```
private transient java.awt.Paint tickLabelPaint
```
    The tick label paint.
  - tickLabelFormat
```
private java.text.NumberFormat tickLabelFormat
```
    The tick label format.
  - localizationResources
```
protected static java.util.ResourceBundle localizationResources
```
    The resourceBundle for the localization.
  - intervals
```
private java.util.List<MeterInterval> intervals
```
    A (possibly empty) list of the MeterIntervals to be highlighted on the dial.
- Constructor Detail
  - MeterPlot
```
public MeterPlot()
```
    Creates a new plot with a default range of 0 to 100 and no value to display.
  - MeterPlot
```
public MeterPlot(ValueDataset dataset)
```
    Creates a new plot that displays the value from the supplied dataset.
    
    Parameters:
    
    dataset - the dataset (null permitted).
- Method Detail
  - getDialShape
```
public DialShape getDialShape()
```
    Returns the dial shape. The default is DialShape.CIRCLE).
    
    Returns:
    
    The dial shape (never null).
    
    See Also:
    
    setDialShape(DialShape)
  - setDialShape
```
public void setDialShape(DialShape shape)
```
    Sets the dial shape and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    shape - the shape (null not permitted).
    
    See Also:
    
    getDialShape()
  - getMeterAngle
```
public int getMeterAngle()
```
    Returns the meter angle in degrees. This defines, in part, the shape of the dial. The default is 270 degrees.
    
    Returns:
    
    The meter angle (in degrees).
    
    See Also:
    
    setMeterAngle(int)
  - setMeterAngle
```
public void setMeterAngle(int angle)
```
    Sets the angle (in degrees) for the whole range of the dial and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    angle - the angle (in degrees, in the range 1-360).
    
    See Also:
    
    getMeterAngle()
  - getRange
```
public Range getRange()
```
    Returns the overall range for the dial.
    
    Returns:
    
    The overall range (never null).
    
    See Also:
    
    setRange(Range)
  - setRange
```
public void setRange(Range range)
```
    Sets the range for the dial and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    range - the range (null not permitted and zero-length ranges not permitted).
    
    See Also:
    
    getRange()
  - getTickSize
```
public double getTickSize()
```
    Returns the tick size (the interval between ticks on the dial).
    
    Returns:
    
    The tick size.
    
    See Also:
    
    setTickSize(double)
  - setTickSize
```
public void setTickSize(double size)
```
    Sets the tick size and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    size - the tick size (must be > 0).
    
    See Also:
    
    getTickSize()
  - getTickPaint
```
public java.awt.Paint getTickPaint()
```
    Returns the paint used to draw the ticks around the dial.
    
    Returns:
    
    The paint used to draw the ticks around the dial (never null).
    
    See Also:
    
    setTickPaint(Paint)
  - setTickPaint
```
public void setTickPaint(java.awt.Paint paint)
```
    Sets the paint used to draw the tick labels around the dial and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    paint - the paint (null not permitted).
    
    See Also:
    
    getTickPaint()
  - getUnits
```
public java.lang.String getUnits()
```
    Returns a string describing the units for the dial.
    
    Returns:
    
    The units (possibly null).
    
    See Also:
    
    setUnits(String)
  - setUnits
```
public void setUnits(java.lang.String units)
```
    Sets the units for the dial and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    units - the units (null permitted).
    
    See Also:
    
    getUnits()
  - getNeedlePaint
```
public java.awt.Paint getNeedlePaint()
```
    Returns the paint for the needle.
    
    Returns:
    
    The paint (never null).
    
    See Also:
    
    setNeedlePaint(Paint)
  - setNeedlePaint
```
public void setNeedlePaint(java.awt.Paint paint)
```
    Sets the paint used to display the needle and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    paint - the paint (null not permitted).
    
    See Also:
    
    getNeedlePaint()
  - getTickLabelsVisible
```
public boolean getTickLabelsVisible()
```
    Returns the flag that determines whether or not tick labels are visible.
    
    Returns:
    
    The flag.
    
    See Also:
    
    setTickLabelsVisible(boolean)
  - setTickLabelsVisible
```
public void setTickLabelsVisible(boolean visible)
```
    Sets the flag that controls whether or not the tick labels are visible and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    visible - the flag.
    
    See Also:
    
    getTickLabelsVisible()
  - getTickLabelFont
```
public java.awt.Font getTickLabelFont()
```
    Returns the tick label font.
    
    Returns:
    
    The font (never null).
    
    See Also:
    
    setTickLabelFont(Font)
  - setTickLabelFont
```
public void setTickLabelFont(java.awt.Font font)
```
    Sets the tick label font and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    font - the font (null not permitted).
    
    See Also:
    
    getTickLabelFont()
  - getTickLabelPaint
```
public java.awt.Paint getTickLabelPaint()
```
    Returns the tick label paint.
    
    Returns:
    
    The paint (never null).
    
    See Also:
    
    setTickLabelPaint(Paint)
  - setTickLabelPaint
```
public void setTickLabelPaint(java.awt.Paint paint)
```
    Sets the tick label paint and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    paint - the paint (null not permitted).
    
    See Also:
    
    getTickLabelPaint()
  - isValueVisible
```
public boolean isValueVisible()
```
    Returns the flag that controls whether or not the value is visible. The default value is true.
    
    Returns:
    
    A flag.
    
    Since:
    
    1.5.4
    
    See Also:
    
    setValueVisible(boolean)
  - setValueVisible
```
public void setValueVisible(boolean valueVisible)
```
    Sets the flag that controls whether or not the value is visible and sends a change event to all registered listeners.
    
    Parameters:
    
    valueVisible - the new flag value.
    
    Since:
    
    1.5.4
    
    See Also:
    
    isValueVisible()
  - getTickLabelFormat
```
public java.text.NumberFormat getTickLabelFormat()
```
    Returns the tick label format.
    
    Returns:
    
    The tick label format (never null).
    
    See Also:
    
    setTickLabelFormat(NumberFormat)
  - setTickLabelFormat
```
public void setTickLabelFormat(java.text.NumberFormat format)
```
    Sets the format for the tick labels and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    format - the format (null not permitted).
    
    See Also:
    
    getTickLabelFormat()
  - getValueFont
```
public java.awt.Font getValueFont()
```
    Returns the font for the value label.
    
    Returns:
    
    The font (never null).
    
    See Also:
    
    setValueFont(Font)
  - setValueFont
```
public void setValueFont(java.awt.Font font)
```
    Sets the font used to display the value label and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    font - the font (null not permitted).
    
    See Also:
    
    getValueFont()
  - getValuePaint
```
public java.awt.Paint getValuePaint()
```
    Returns the paint for the value label.
    
    Returns:
    
    The paint (never null).
    
    See Also:
    
    setValuePaint(Paint)
  - setValuePaint
```
public void setValuePaint(java.awt.Paint paint)
```
    Sets the paint used to display the value label and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    paint - the paint (null not permitted).
    
    See Also:
    
    getValuePaint()
  - getDialBackgroundPaint
```
public java.awt.Paint getDialBackgroundPaint()
```
    Returns the paint for the dial background.
    
    Returns:
    
    The paint (possibly null).
    
    See Also:
    
    setDialBackgroundPaint(Paint)
  - setDialBackgroundPaint
```
public void setDialBackgroundPaint(java.awt.Paint paint)
```
    Sets the paint used to fill the dial background. Set this to null for no background.
    
    Parameters:
    
    paint - the paint (null permitted).
    
    See Also:
    
    getDialBackgroundPaint()
  - getDrawBorder
```
public boolean getDrawBorder()
```
    Returns a flag that controls whether or not a rectangular border is drawn around the plot area.
    
    Returns:
    
    A flag.
    
    See Also:
    
    setDrawBorder(boolean)
  - setDrawBorder
```
public void setDrawBorder(boolean draw)
```
    Sets the flag that controls whether or not a rectangular border is drawn around the plot area and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    draw - the flag.
    
    See Also:
    
    getDrawBorder()
  - getDialOutlinePaint
```
public java.awt.Paint getDialOutlinePaint()
```
    Returns the dial outline paint.
    
    Returns:
    
    The paint.
    
    See Also:
    
    setDialOutlinePaint(Paint)
  - setDialOutlinePaint
```
public void setDialOutlinePaint(java.awt.Paint paint)
```
    Sets the dial outline paint and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    paint - the paint.
    
    See Also:
    
    getDialOutlinePaint()
  - getDataset
```
public ValueDataset getDataset()
```
    Returns the dataset for the plot.
    
    Returns:
    
    The dataset (possibly null).
    
    See Also:
    
    setDataset(ValueDataset)
  - setDataset
```
public void setDataset(ValueDataset dataset)
```
    Sets the dataset for the plot, replacing the existing dataset if there is one, and triggers a PlotChangeEvent.
    
    Parameters:
    
    dataset - the dataset (null permitted).
    
    See Also:
    
    getDataset()
  - getIntervals
```
public java.util.List<MeterInterval> getIntervals()
```
    Returns an unmodifiable list of the intervals for the plot.
    
    Returns:
    
    A list.
    
    See Also:
    
    addInterval(MeterInterval)
  - addInterval
```
public void addInterval(MeterInterval interval)
```
    Adds an interval and sends a PlotChangeEvent to all registered listeners.
    
    Parameters:
    
    interval - the interval (null not permitted).
    
    See Also:
    
    getIntervals(), clearIntervals()
  - clearIntervals
```
public void clearIntervals()
```
    Clears the intervals for the plot and sends a PlotChangeEvent to all registered listeners.
    
    See Also:
    
    addInterval(MeterInterval)
  - getLegendItems
```
public LegendItemCollection getLegendItems()
```
    Returns an item for each interval.
    
    Specified by:
    
    getLegendItems in interface LegendItemSource
    
    Overrides:
    
    getLegendItems in class Plot
    
    Returns:
    
    A collection of legend items.
  - draw
```
public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D area,
                 java.awt.geom.Point2D anchor,
                 PlotState parentState,
                 PlotRenderingInfo info)
```
    Draws the plot on a Java 2D graphics device (such as the screen or a printer).
    
    Specified by:
    
    draw in class Plot
    
    Parameters:
    
    g2 - the graphics device.
    
    area - the area within which the plot should be drawn.
    
    anchor - the anchor point (null permitted).
    
    parentState - the state from the parent plot, if there is one.
    
    info - collects info about the drawing.
  - drawArcForInterval
```
protected void drawArcForInterval(java.awt.Graphics2D g2,
                                  java.awt.geom.Rectangle2D meterArea,
                                  MeterInterval interval)
```
    Draws the arc to represent an interval.
    
    Parameters:
    
    g2 - the graphics device.
    
    meterArea - the drawing area.
    
    interval - the interval.
  - drawArc
```
protected void drawArc(java.awt.Graphics2D g2,
                       java.awt.geom.Rectangle2D area,
                       double minValue,
                       double maxValue,
                       java.awt.Paint paint,
                       java.awt.Stroke stroke)
```
    Draws an arc.
    
    Parameters:
    
    g2 - the graphics device.
    
    area - the plot area.
    
    minValue - the minimum value.
    
    maxValue - the maximum value.
    
    paint - the paint.
    
    stroke - the stroke.
  - fillArc
```
protected void fillArc(java.awt.Graphics2D g2,
                       java.awt.geom.Rectangle2D area,
                       double minValue,
                       double maxValue,
                       java.awt.Paint paint,
                       boolean dial)
```
    Fills an arc on the dial between the given values.
    
    Parameters:
    
    g2 - the graphics device.
    
    area - the plot area.
    
    minValue - the minimum data value.
    
    maxValue - the maximum data value.
    
    paint - the background paint (null not permitted).
    
    dial - a flag that indicates whether the arc represents the whole dial.
  - valueToAngle
```
public double valueToAngle(double value)
```
    Translates a data value to an angle on the dial.
    
    Parameters:
    
    value - the value.
    
    Returns:
    
    The angle on the dial.
  - drawTicks
```
protected void drawTicks(java.awt.Graphics2D g2,
                         java.awt.geom.Rectangle2D meterArea,
                         double minValue,
                         double maxValue)
```
    Draws the ticks that subdivide the overall range.
    
    Parameters:
    
    g2 - the graphics device.
    
    meterArea - the meter area.
    
    minValue - the minimum value.
    
    maxValue - the maximum value.
  - drawTick
```
protected void drawTick(java.awt.Graphics2D g2,
                        java.awt.geom.Rectangle2D meterArea,
                        double value)
```
    Draws a tick.
    
    Parameters:
    
    g2 - the graphics device.
    
    meterArea - the meter area.
    
    value - the value.
  - drawTick
```
protected void drawTick(java.awt.Graphics2D g2,
                        java.awt.geom.Rectangle2D meterArea,
                        double value,
                        boolean label)
```
    Draws a tick on the dial.
    
    Parameters:
    
    g2 - the graphics device.
    
    meterArea - the meter area.
    
    value - the tick value.
    
    label - a flag that controls whether or not a value label is drawn.
  - drawValueLabel
```
protected void drawValueLabel(java.awt.Graphics2D g2,
                              java.awt.geom.Rectangle2D area)
```
    Draws the value label just below the center of the dial.
    
    Parameters:
    
    g2 - the graphics device.
    
    area - the plot area.
  - getPlotType
```
public java.lang.String getPlotType()
```
    Returns a short string describing the type of plot.
    
    Specified by:
    
    getPlotType in class Plot
    
    Returns:
    
    A string describing the type of plot.
  - zoom
```
public void zoom(double percent)
```
    A zoom method that does nothing. Plots are required to support the zoom operation. In the case of a meter plot, it doesn't make sense to zoom in or out, so the method is empty.
    
    Overrides:
    
    zoom in class Plot
    
    Parameters:
    
    percent - The zoom percentage.
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Tests the plot for equality with an arbitrary object. Note that the dataset is ignored for the purposes of testing equality.
    
    Overrides:
    
    equals in class Plot
    
    Parameters:
    
    obj - the object (null permitted).
    
    Returns:
    
    A boolean.
  - writeObject
```
private void writeObject(java.io.ObjectOutputStream stream)
                  throws java.io.IOException
```
    Provides serialization support.
    
    Parameters:
    
    stream - the output stream.
    
    Throws:
    
    java.io.IOException - if there is an I/O error.
  - readObject
```
private void readObject(java.io.ObjectInputStream stream)
                 throws java.io.IOException,
                        java.lang.ClassNotFoundException
```
    Provides serialization support.
    
    Parameters:
    
    stream - the input stream.
    
    Throws:
    
    java.io.IOException - if there is an I/O error.
    
    java.lang.ClassNotFoundException - if there is a classpath problem.
  - clone
```
public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException
```
    Returns an independent copy (clone) of the plot. The dataset is NOT cloned - both the original and the clone will have a reference to the same dataset.
    
    Specified by:
    
    clone in interface PublicCloneable
    
    Overrides:
    
    clone in class Plot
    
    Returns:
    
    A clone.
    
    Throws:
    
    java.lang.CloneNotSupportedException - if some component of the plot cannot be cloned.

Class MeterPlot

Field Summary

Fields inherited from class org.jfree.chart.plot.Plot

Constructor Summary

Method Summary

Methods inherited from class org.jfree.chart.plot.Plot

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

DEFAULT_DIAL_BACKGROUND_PAINT

DEFAULT_NEEDLE_PAINT

DEFAULT_VALUE_FONT

DEFAULT_VALUE_PAINT

DEFAULT_METER_ANGLE

DEFAULT_BORDER_SIZE

DEFAULT_CIRCLE_SIZE

DEFAULT_LABEL_FONT

dataset

shape

meterAngle

range

tickSize

tickPaint

units

valueFont

valuePaint

valueVisible

drawBorder

dialOutlinePaint

dialBackgroundPaint

needlePaint

tickLabelsVisible

tickLabelFont

tickLabelPaint

tickLabelFormat

localizationResources

intervals

Constructor Detail

MeterPlot

MeterPlot

Method Detail

getDialShape

setDialShape

getMeterAngle

setMeterAngle

getRange

setRange

getTickSize

setTickSize

getTickPaint

setTickPaint

getUnits

setUnits

getNeedlePaint

setNeedlePaint

getTickLabelsVisible

setTickLabelsVisible

getTickLabelFont

setTickLabelFont

getTickLabelPaint

setTickLabelPaint

isValueVisible

setValueVisible

getTickLabelFormat

setTickLabelFormat

getValueFont

setValueFont

getValuePaint

setValuePaint

getDialBackgroundPaint

setDialBackgroundPaint

getDrawBorder

setDrawBorder

getDialOutlinePaint

setDialOutlinePaint

getDataset

setDataset

getIntervals

addInterval

clearIntervals