Class RadarChart

java.lang.Object

com.codename1.charts.views.AbstractChart

com.codename1.charts.views.RoundChart

com.codename1.charts.views.RadarChart

public class RadarChart
extends RoundChart

Draws multi-dimensional data as a web chart (also known as a radar or spider chart).

The chart consumes an AreaSeries where each category represents an axis radiating from the centre. Configure colours and labelling through a DefaultRenderer and wrap the instance in a com.codename1.charts.ChartComponent to present it inside your UI.

Field Summary

Fields inherited from class RoundChart

autoCalculateCenter, mCenterX, mCenterY, mRenderer, NO_VALUE, SHAPE_WIDTH

Constructor Summary

Constructors

Constructor	Description
RadarChart(AreaSeries dataset, DefaultRenderer renderer)	Builds a new radar chart instance.

Method Summary

Modifier and Type	Method	Description
void	draw(Canvas canvas, int x, int y, int width, int height, Paint paint)	The graphical representation of the radar chart.
void	drawLegendShape(Canvas canvas, SimpleSeriesRenderer renderer, float x, float y, int seriesIndex, Paint paint)	The graphical representation of the legend shape.
int	getLegendShapeWidth(int seriesIndex)	Returns the legend shape width.

Methods inherited from class RoundChart

drawTitle, getCenterX, getCenterY, getRenderer, isAutocalculateCenter, setAutocalculateCenter, setCenterX, setCenterY

Methods inherited from class AbstractChart

calculateDrawPoints, drawBackground, drawLabel, drawLegend, drawPath, drawPath, drawString, getExceed, getLabel, getLegendSize, getSeriesAndPointForScreenCoordinate, isNullValue, isVertical

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RadarChart

public RadarChart(AreaSeries dataset,
 DefaultRenderer renderer)

Builds a new radar chart instance.

Parameters

• dataset: the series dataset

• renderer: the series renderer

Method Details

draw

public void draw(Canvas canvas,
 int x,
 int y,
 int width,
 int height,
 Paint paint)

The graphical representation of the radar chart.

Parameters

• canvas: the canvas to paint to

• x: the top left x value of the view to draw to

• y: the top left y value of the view to draw to

• width: the width of the view to draw to

• height: the height of the view to draw to

• paint: the paint

Specified by:

draw in class AbstractChart

getLegendShapeWidth

public int getLegendShapeWidth(int seriesIndex)

Returns the legend shape width.

Parameters

• seriesIndex: the series index

Returns

the legend shape width

Overrides:

getLegendShapeWidth in class RoundChart

drawLegendShape

public void drawLegendShape(Canvas canvas,
 SimpleSeriesRenderer renderer,
 float x,
 float y,
 int seriesIndex,
 Paint paint)

The graphical representation of the legend shape.

Parameters

• canvas: the canvas to paint to

• renderer: the series renderer

• x: the x value of the point the shape should be drawn at

• y: the y value of the point the shape should be drawn at

• seriesIndex: the series index

• paint: the paint to be used for drawing

Overrides:

drawLegendShape in class RoundChart