## org.jfree.chart.plot
Class ValueMarker

    java.lang.Object
      org.jfree.chart.plot.Marker
          org.jfree.chart.plot.ValueMarker

All Implemented Interfaces:
  java.io.Serializable, java.lang.Cloneable

    public class ValueMarker

extends Marker

A marker that represents a single value. Markers can be added to plots to highlight specific values.

See Also:
  Serialized Form

Constructor Summary
`ValueMarker(double value)` Creates a new marker.
`ValueMarker(double value, java.awt.Paint paint, java.awt.Stroke stroke)` Creates a new marker.
`ValueMarker(double value, java.awt.Paint paint, java.awt.Stroke stroke, java.awt.Paint outlinePaint, java.awt.Stroke outlineStroke, float alpha)` Creates a new value marker.

Method Summary
`boolean` `equals(java.lang.Object obj)` Tests this marker for equality with an arbitrary object.
`double` `getValue()` Returns the value.
`void` `setValue(double value)` Sets the value for the marker and sends a `MarkerChangeEvent` to all registered listeners.

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

`addChangeListener, clone, getAlpha, getLabel, getLabelAnchor, getLabelFont, getLabelOffset, getLabelOffsetType, getLabelPaint, getLabelTextAnchor, getListeners, getOutlinePaint, getOutlineStroke, getPaint, getStroke, notifyListeners, removeChangeListener, setAlpha, setLabel, setLabelAnchor, setLabelFont, setLabelOffset, setLabelOffsetType, setLabelPaint, setLabelTextAnchor, setOutlinePaint, setOutlineStroke, setPaint, setStroke`

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

Constructor Detail

### ValueMarker

    public ValueMarker(double value)

  Creates a new marker.

  Parameters:
    `value` - the value.

### ValueMarker

    public ValueMarker(double value,
                       java.awt.Paint paint,
                       java.awt.Stroke stroke)

  Creates a new marker.

  Parameters:
    `value` - the value.
    `paint` - the paint (`null` not permitted).
    `stroke` - the stroke (`null` not permitted).

### ValueMarker

    public ValueMarker(double value,
                       java.awt.Paint paint,
                       java.awt.Stroke stroke,
                       java.awt.Paint outlinePaint,
                       java.awt.Stroke outlineStroke,
                       float alpha)

  Creates a new value marker.

  Parameters:
    `value` - the value.
    `paint` - the paint (`null` not permitted).
    `stroke` - the stroke (`null` not permitted).
    `outlinePaint` - the outline paint (`null` permitted).
    `outlineStroke` - the outline stroke (`null` permitted).
    `alpha` - the alpha transparency (in the range 0.0f to 1.0f).

Method Detail

### getValue

    public double getValue()

  Returns the value.

  Returns:
    The value.
  See Also:
    `setValue(double)`

### setValue

    public void setValue(double value)

  Sets the value for the marker and sends a `MarkerChangeEvent` to all registered listeners.

  Parameters:
    `value` - the value.
  Since:
    1.0.3
  See Also:
    `getValue()`

### equals

    public boolean equals(java.lang.Object obj)

  Tests this marker for equality with an arbitrary object. This method returns `true` if:
  - `obj` is not `null`;
  - `obj` is an instance of `ValueMarker`;
  - `obj` has the same value as this marker;
  - `super.equals(obj)` returns `true`.

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