com.codename1.charts.views

Class PieMapper

java.lang.Object

com.codename1.charts.views.PieMapper

public class PieMapper
extends Object

PieChart Segment Selection Management.

Constructor Summary

Constructors

Constructor and Description
PieMapper()

Method Summary

Modifier and Type	Method and 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, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PieMapper

public PieMapper()

Method Detail

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)