Class PieMapper

java.lang.Object
com.codename1.charts.views.PieMapper
public class PieMapper extends java.lang.Object
PieChart Segment Selection Management.

  • Constructor Summary

    Constructors
    Constructor
    Description
    PieMapper()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addPieSegment(int dataIndex, float value, float startAngle, float angle)
    Add configuration for a PieChart Segment
    boolean
    areAllSegmentPresent(int datasetSize)
    If we have all PieChart Config then there is no point in reloading it
    void
    clearPieSegments()
    Clears the pie segments list.
    double
    getAngle(Point screenPoint)
    Fetches angle relative to pie chart center point where 3 O'Clock is 0 and 12 O'Clock is 270degrees
    Shape
    getSegmentShape(int dataIndex)
     
    SeriesSelection
    getSeriesAndPointForScreenCoordinate(Point screenPoint)
    Fetches the SeriesSelection for the PieSegment selected.
    boolean
    isOnPieChart(Point screenPoint)
    Checks if Point falls within PieChart
    void
    setDimensions(int pieRadius, int centerX, int centerY)
    Set PieChart location on screen.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • PieMapper

      public PieMapper()

  • Method Details

    • setDimensions

      public void setDimensions(int pieRadius, int centerX, int centerY)

      Set PieChart location on screen.

      Parameters

      • pieRadius

      • centerX

      • centerY

    • areAllSegmentPresent

      public boolean areAllSegmentPresent(int datasetSize)

      If we have all PieChart Config then there is no point in reloading it

      Parameters
      • datasetSize
      Returns

      true if cfg for each segment is present

    • addPieSegment

      public void addPieSegment(int dataIndex, float value, float startAngle, float angle)

      Add configuration for a PieChart Segment

      Parameters

      • dataIndex

      • value

      • startAngle

      • angle

    • clearPieSegments

      public void clearPieSegments()
      Clears the pie segments list.

    • getAngle

      public double getAngle(Point screenPoint)

      Fetches angle relative to pie chart center point where 3 O'Clock is 0 and 12 O'Clock is 270degrees

      Parameters
      • screenPoint
      Returns

      angle in degress from 0-360.

    • isOnPieChart

      public boolean isOnPieChart(Point screenPoint)

      Checks if Point falls within PieChart

      Parameters
      • screenPoint
      Returns

      true if in PieChart

    • getSeriesAndPointForScreenCoordinate

      public SeriesSelection getSeriesAndPointForScreenCoordinate(Point screenPoint)

      Fetches the SeriesSelection for the PieSegment selected.

      Parameters
      • screenPoint: - the user tap location
      Returns

      null if screen point is not in PieChart or its config if it is

    • getSegmentShape

      public Shape getSegmentShape(int dataIndex)