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com.jrefinery.chart
Class RadarPlot
java.lang.ObjectPlot
- public class RadarPlot
- extends Plot
A plot that displays data in the form of a radar chart, using data from any class that implements the CategoryDataSource interface.
Notes: (1) negative values in the dataset are ignored; (2) vertical axis and horizontal axis are set to null; (3) there are utility methods for creating a CategoryDataSource from a CategoryDataset;
| Field Summary | |
static java.awt.Paint |
ADAPTIVE_COLORING
A magic color object used to designate adaptive coloring, based on the computed quality index |
protected java.awt.Font |
axisLabelFont
The font used to display the axis labels. |
protected double |
axisLabelGapPercent
The gap between the labels and the radar axes, as a percentage of the radius. |
protected java.awt.Paint |
axisLabelPaint
The color used to draw the axis labels. |
protected boolean |
circular
Flag determining whether to draw an ellipse or a perfect circle. |
static java.awt.Font |
DEFAULT_AXIS_LABEL_FONT
The default axis label font. |
static double |
DEFAULT_AXIS_LABEL_GAP
The default axis label gap (currently 10%). |
static java.awt.Paint |
DEFAULT_AXIS_LABEL_PAINT
The default axis label paint. |
static double |
DEFAULT_INTERIOR_GAP
The default interior gap percent (currently 20%). |
static double |
DEFAULT_RADIUS
The default radius percent (currently 100%). |
protected boolean |
drawAxisLabels
Whether or not axis labels should be drawn |
protected double |
interiorGapPercent
The amount of space left around the outside of the radar chart, expressed as a percentage. |
static double |
MAX_AXIS_LABEL_GAP
The maximum interior gap (currently 30%). |
static double |
MAX_INTERIOR_GAP
The maximum interior gap (currently 40%). |
static double |
MAX_RADIUS
The maximum radius (currently 100%). |
protected java.awt.Paint |
radarSeriesPaint
The color to use to draw the data polygon |
protected double |
radiusPercent
The radius as a percentage of the available drawing area. |
| Constructor Summary | |
RadarPlot(JFreeChart chart)
Constructs a new radar chart, using default attributes as required. |
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RadarPlot(JFreeChart chart,
java.awt.Insets insets,
java.awt.Paint backgroundPaint,
java.awt.Image backgroundImage,
float backgroundAlpha,
java.awt.Stroke outlineStroke,
java.awt.Paint outlinePaint,
float foregroundAlpha,
double interiorGapPercent,
boolean circular,
double radiusPercent,
java.awt.Font axisLabelFont,
java.awt.Paint axisLabelPaint,
double axisLabelGapPercent,
java.awt.Paint dataPaint)
Constructs a radar chart. |
|
| Method Summary | |
void |
draw(java.awt.Graphics2D g2,
java.awt.geom.Rectangle2D plotArea)
Draws the plot on a Java 2D graphics device (such as the screen or a printer). |
protected void |
drawLabel(java.awt.Graphics2D g2,
java.awt.geom.Rectangle2D chartArea,
java.lang.String label,
int axis,
double labelX,
double labelY)
Draws the label for one radar axis. |
java.awt.Font |
getAxisLabelFont()
Returns the axis label font. |
double |
getAxisLabelGapPercent()
Returns the axis label gap, measures as a percentage of the radius. |
java.awt.Paint |
getAxisLabelPaint()
Returns the axis label paint. |
java.util.Collection |
getCategories()
Returns a collection of the categories in the dataset. |
CategoryDataSource |
getDataset()
Returns the dataset for the plot, cast as a CategoryDataSource. |
CategoryDataSource |
getDataSource()
|
double |
getInteriorGapPercent()
Returns the interior gap, measures as a percentage of the available drawing space. |
private java.awt.Paint |
getMultiplierColor(float value)
Calculate an appropriate color for the quality chart. |
java.awt.Paint |
getPlotLinePaint()
Returns the plot line paint. |
java.lang.String |
getPlotType()
Returns a short string describing the type of plot. |
double |
getRadiusPercent()
Returns the radius percentage. |
boolean |
isCircular()
Returns a flag indicating whether the radar chart is circular, or stretched into an elliptical shape. |
boolean |
isCompatibleHorizontalAxis(Axis axis)
Returns true if the axis is compatible with the radar chart, and false otherwise. |
boolean |
isCompatibleVerticalAxis(Axis axis)
Returns true if the axis is compatible with the radar chart, and false otherwise. |
void |
setAxisLabelFont(java.awt.Font font)
Sets the axis label font. |
void |
setAxisLabelGapPercent(double percent)
Sets the axis label gap percent. |
void |
setAxisLabelPaint(java.awt.Paint paint)
Sets the axis label paint. |
void |
setCircular(boolean flag)
A flag indicating whether the radar chart is circular, or stretched into an elliptical shape. |
void |
setDrawAxisLabels(boolean draw)
|
void |
setInteriorGapPercent(double percent)
Sets the interior gap percent. |
void |
setPlotLinePaint(java.awt.Paint paint)
Sets the plot line paint. |
void |
setRadiusPercent(double percent)
Sets the radius percentage. |
void |
zoom(double percent)
A zoom method that does nothing. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
DEFAULT_INTERIOR_GAP
public static final double DEFAULT_INTERIOR_GAP
- The default interior gap percent (currently 20%).
- See Also:
- Constant Field Values
MAX_INTERIOR_GAP
public static final double MAX_INTERIOR_GAP
- The maximum interior gap (currently 40%).
- See Also:
- Constant Field Values
DEFAULT_RADIUS
public static final double DEFAULT_RADIUS
- The default radius percent (currently 100%).
- See Also:
- Constant Field Values
MAX_RADIUS
public static final double MAX_RADIUS
- The maximum radius (currently 100%).
- See Also:
- Constant Field Values
DEFAULT_AXIS_LABEL_FONT
public static final java.awt.Font DEFAULT_AXIS_LABEL_FONT
- The default axis label font.
DEFAULT_AXIS_LABEL_PAINT
public static final java.awt.Paint DEFAULT_AXIS_LABEL_PAINT
- The default axis label paint.
DEFAULT_AXIS_LABEL_GAP
public static final double DEFAULT_AXIS_LABEL_GAP
- The default axis label gap (currently 10%).
- See Also:
- Constant Field Values
MAX_AXIS_LABEL_GAP
public static final double MAX_AXIS_LABEL_GAP
- The maximum interior gap (currently 30%).
- See Also:
- Constant Field Values
ADAPTIVE_COLORING
public static final java.awt.Paint ADAPTIVE_COLORING
- A magic color object used to designate adaptive coloring, based
on the computed quality index
interiorGapPercent
protected double interiorGapPercent
- The amount of space left around the outside of the radar
chart, expressed as a percentage.
circular
protected boolean circular
- Flag determining whether to draw an ellipse or a perfect circle.
radiusPercent
protected double radiusPercent
- The radius as a percentage of the available drawing area.
axisLabelFont
protected java.awt.Font axisLabelFont
- The font used to display the axis labels.
axisLabelPaint
protected java.awt.Paint axisLabelPaint
- The color used to draw the axis labels.
axisLabelGapPercent
protected double axisLabelGapPercent
- The gap between the labels and the radar axes, as a
percentage of the radius.
radarSeriesPaint
protected java.awt.Paint radarSeriesPaint
- The color to use to draw the data polygon
drawAxisLabels
protected boolean drawAxisLabels
- Whether or not axis labels should be drawn
| Constructor Detail |
RadarPlot
public RadarPlot(JFreeChart chart)
throws AxisNotCompatibleException
- Constructs a new radar chart, using default attributes as required.
RadarPlot
public RadarPlot(JFreeChart chart,
java.awt.Insets insets,
java.awt.Paint backgroundPaint,
java.awt.Image backgroundImage,
float backgroundAlpha,
java.awt.Stroke outlineStroke,
java.awt.Paint outlinePaint,
float foregroundAlpha,
double interiorGapPercent,
boolean circular,
double radiusPercent,
java.awt.Font axisLabelFont,
java.awt.Paint axisLabelPaint,
double axisLabelGapPercent,
java.awt.Paint dataPaint)
throws AxisNotCompatibleException
- Constructs a radar chart.
| Method Detail |
getInteriorGapPercent
public double getInteriorGapPercent()
- Returns the interior gap, measures as a percentage of the
available drawing space.
setInteriorGapPercent
public void setInteriorGapPercent(double percent)
- Sets the interior gap percent.
isCircular
public boolean isCircular()
- Returns a flag indicating whether the radar chart is circular,
or stretched into an elliptical shape.
setCircular
public void setCircular(boolean flag)
- A flag indicating whether the radar chart is circular, or
stretched into an elliptical shape.
getRadiusPercent
public double getRadiusPercent()
- Returns the radius percentage.
setRadiusPercent
public void setRadiusPercent(double percent)
- Sets the radius percentage.
getAxisLabelFont
public java.awt.Font getAxisLabelFont()
- Returns the axis label font.
setAxisLabelFont
public void setAxisLabelFont(java.awt.Font font)
- Sets the axis label font.
Notifies registered listeners that the plot has been changed.
getAxisLabelPaint
public java.awt.Paint getAxisLabelPaint()
- Returns the axis label paint.
setAxisLabelPaint
public void setAxisLabelPaint(java.awt.Paint paint)
- Sets the axis label paint.
Notifies registered listeners that the plot has been changed.
getPlotLinePaint
public java.awt.Paint getPlotLinePaint()
- Returns the plot line paint.
setPlotLinePaint
public void setPlotLinePaint(java.awt.Paint paint)
- Sets the plot line paint.
Notifies registered listeners that the plot has been changed.
getAxisLabelGapPercent
public double getAxisLabelGapPercent()
- Returns the axis label gap, measures as a percentage of the radius.
setAxisLabelGapPercent
public void setAxisLabelGapPercent(double percent)
- Sets the axis label gap percent.
setDrawAxisLabels
public void setDrawAxisLabels(boolean draw)
getDataset
public CategoryDataSource getDataset()
- Returns the dataset for the plot, cast as a CategoryDataSource.
Provided for convenience.
getDataSource
public CategoryDataSource getDataSource()
getCategories
public java.util.Collection getCategories()
- Returns a collection of the categories in the dataset.
draw
public void draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D plotArea)
- Draws the plot on a Java 2D graphics device (such as the screen
or a printer).
getMultiplierColor
private java.awt.Paint getMultiplierColor(float value)
- Calculate an appropriate color for the quality chart.
if the multiplier is 0, use red; if it is 1, use green;
use yellow in between, and fade proportionately.
drawLabel
protected void drawLabel(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D chartArea, java.lang.String label, int axis, double labelX, double labelY)
- Draws the label for one radar axis.
getPlotType
public java.lang.String getPlotType()
- Returns a short string describing the type of plot.
isCompatibleHorizontalAxis
public boolean isCompatibleHorizontalAxis(Axis axis)
- Returns true if the axis is compatible with the radar chart,
and false otherwise. Since a radar plot requires no axes, only
a null axis is compatible.
isCompatibleVerticalAxis
public boolean isCompatibleVerticalAxis(Axis axis)
- Returns true if the axis is compatible with the radar chart,
and false otherwise. Since a radar plot requires no axes, only
a null axis is compatible.
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 radar chart, it doesn't make sense to zoom in or out, so the method is empty.
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SUMMARY: JAVADOC | SOURCE | DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||