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## org.biojava.bio.gui.sequence
Class EllipticalBeadRenderer

    java.lang.Object
      org.biojava.utils.AbstractChangeable
          org.biojava.bio.gui.sequence.AbstractBeadRenderer
              org.biojava.bio.gui.sequence.EllipticalBeadRenderer

All Implemented Interfaces:
  Serializable, BeadFeatureRenderer, FeatureRenderer, Changeable

    public class EllipticalBeadRenderer

extends AbstractBeadRenderer

`EllipticalBeadRenderer` renders features as simple ellipses. Their outline and fill `Paint`, `Stroke`, feature depth, Y-axis displacement are configurable. Also configurable is the minimum ratio of long axis to short axis of the ellipse - this prevents long features also becoming ever wider and obscuring neighbours.

Since:
  1.2
Author:
  Keith James
See Also:
  Serialized Form

Field Summary
`protected double` | `dimensionRatio`
`static ChangeType` | `RATIO` Constant `RATIO` indicating a change to the minimum allowed ratio of long axis to short axis of the features.

Fields inherited from class org.biojava.bio.gui.sequence.AbstractBeadRenderer
`beadDepth, beadDisplacement, beadFill, beadOutline, beadStroke, delegates, delegationCache, DEPTH, DISPLACEMENT, FILL, OUTLINE, STROKE`

Constructor Summary
`EllipticalBeadRenderer()` Creates a new `EllipticalBeadRenderer` object with the default settings.
`EllipticalBeadRenderer(double beadDepth, double beadDisplacement, Paint beadOutline, Paint beadFill, Stroke beadStroke, double dimensionRatio)` Creates a new `EllipticalBeadRenderer`.

Method Summary
`double` | `getDepth(SequenceRenderContext context)` `getDepth` calculates the depth required by this renderer to display its beads.
`double` | `getDimensionRatio()` `getDimensionRatio` returns the maximum ratio of long dimension to short dimension of the bead.
`void` | `renderBead(Graphics2D g2, Feature f, SequenceRenderContext context)` `renderBead` renders features as simple ellipse.
`void` | `setDimensionRatio(double ratio)` `setDimensionRatio` sets the minimum ratio of long dimension to short dimension of the bead.

Methods inherited from class org.biojava.bio.gui.sequence.AbstractBeadRenderer
`getBeadDepth, getBeadDisplacement, getBeadFill, getBeadOutline, getBeadStroke, processMouseEvent, removeDelegateRenderer, renderFeature, setBeadDepth, setBeadDisplacement, setBeadFill, setBeadOutline, setBeadStroke, setDelegateRenderer`

Methods inherited from class org.biojava.utils.AbstractChangeable
`addChangeListener, addChangeListener, generateChangeSupport, getChangeSupport, hasListeners, hasListeners, isUnchanging, removeChangeListener, removeChangeListener`

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

Field Detail

### RATIO

    public static final ChangeType RATIO

  Constant `RATIO` indicating a change to the minimum allowed ratio of long axis to short axis of the features.

### dimensionRatio

    protected double dimensionRatio

Constructor Detail

### EllipticalBeadRenderer

    public EllipticalBeadRenderer()

  Creates a new `EllipticalBeadRenderer` object with the default settings.

### EllipticalBeadRenderer

    public EllipticalBeadRenderer(double beadDepth,
                                  double beadDisplacement,
                                  Paint beadOutline,
                                  Paint beadFill,
                                  Stroke beadStroke,
                                  double dimensionRatio)

  Creates a new `EllipticalBeadRenderer`.

  Parameters:
    `beadDepth` - a `double`.
    `beadDisplacement` - a `double`.
    `beadOutline` - a `Paint`.
    `beadFill` - a `Paint`.
    `beadStroke` - a `Stroke`.
    `dimensionRatio` - a `double`.

Method Detail

### renderBead

    public void renderBead(Graphics2D g2,
                           Feature f,
                           SequenceRenderContext context)

  `renderBead` renders features as simple ellipse.

  Specified by:
    `renderBead` in interface `BeadFeatureRenderer`
  Specified by:
    `renderBead` in class `AbstractBeadRenderer`
  Parameters:
    `g2` - a `Graphics2D` context.
    `f` - a `Feature` to render.
    `context` - a `SequenceRenderContext` context.

### getDepth

    public double getDepth(SequenceRenderContext context)

  `getDepth` calculates the depth required by this renderer to display its beads.

  Specified by:
    `getDepth` in interface `FeatureRenderer`
  Overrides:
    `getDepth` in class `AbstractBeadRenderer`
  Parameters:
    `context` - a `SequenceRenderContext` object.
  Returns:
    a `double`.

### getDimensionRatio

    public double getDimensionRatio()

  `getDimensionRatio` returns the maximum ratio of long dimension to short dimension of the bead. This should be equal, or greater than 1.

  Returns:
    a `double`.

### setDimensionRatio

    public void setDimensionRatio(double ratio)
                           throws ChangeVetoException

  `setDimensionRatio` sets the minimum ratio of long dimension to short dimension of the bead. This should be equal, or greater than 1.

  Parameters:
    `ratio` - a `double` ratio of depth.
  Throws:
    `ChangeVetoException` - if an error occurs.

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