Package com.day.cq.graphics.chart

Class PieChart

java.lang.Object
com.day.cq.graphics.chart.Chart
com.day.cq.graphics.chart.PieChart
public class PieChart extends Chart
The PieChart class implements drawing a pie chart from data samples. From each data row only the first sample is taken to draw the pie. The slices are drawn counter clock wise, last row to first starting at the start angle as defined with setStart(double).

As a side effect the the ticksample data in the Y axis of the graph is set to the percentage of the sum of sample values. See draw(Graph, boolean) for more information.

  • Field Summary

    Fields inherited from class com.day.cq.graphics.chart.Chart

    chartTypes

  • Constructor Summary

    Constructors
    Constructor
    Description
    PieChart()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    Layer
    draw(Graph graph, boolean doDraw)
    Draws the pie chart into a new layer of the defined height and width.
    static String
    getName()
     
    void
    setHeight(int height)
    Sets the height of the pie chart, if it has not been set yet.
    void
    setStart(double start)
    Sets the starting angle of the first pie piece, if it has not been set yet.
    void
    setWidth(int width)
    Sets the width of the pie chart, if it has not been set yet.

    Methods inherited from class com.day.cq.graphics.chart.Chart

    getInstance

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • PieChart

      public PieChart()

  • Method Details

    • getName

      public static String getName()

    • draw

      public Layer draw(Graph graph, boolean doDraw)
      Draws the pie chart into a new layer of the defined height and width. As noted in the above class comment, this method sets the ticksample value of the graph's Y axis as the chart is drawn. This method can thus be used to simply calculate this data.
      Specified by:
      draw in class Chart
      Parameters:
      graph - The graph the chart belongs to
      doDraw - Indicates whether to draw or only calculate
      Returns:
      The layer into which the pie chart has been drawn or null if no drawing has been requested.

    • setWidth

      public void setWidth(int width)
      Sets the width of the pie chart, if it has not been set yet.
      Parameters:
      width - The width of the pie chart.

    • setHeight

      public void setHeight(int height)
      Sets the height of the pie chart, if it has not been set yet.
      Parameters:
      height - The height of the pie chart.

    • setStart

      public void setStart(double start)
      Sets the starting angle of the first pie piece, if it has not been set yet. This angle is considered to be in degrees, to rotate counter clockwise for positive values. Zero degrees is at 3 o'clock.
      Parameters:
      start -