Package org.knowm.xchart.internal.chartpart

Class Axis<ST extends AxesChartStyler,S extends AxesChartSeries>

java.lang.Object

org.knowm.xchart.internal.chartpart.Axis<ST,S>

All Implemented Interfaces:

ChartPart

public class Axis<ST extends AxesChartStyler,S extends AxesChartSeries>
extends java.lang.Object
implements ChartPart

Axis

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Axis.Direction	An axis direction

Field Summary

Fields

Modifier and Type	Field	Description
private ST	axesChartStyler
private AxisTick<ST,S>	axisTick	the axis tick
private AxisTickCalculator	axisTickCalculator	the axis tick calculator
private AxisTitle<ST,S>	axisTitle	the axis title
private java.awt.geom.Rectangle2D.Double	bounds
private Chart<ST,S>	chart
private Series.DataType	dataType	the dataType
private Axis.Direction	direction	the axis direction
private int	index	the axis group index *
private double	max
private double	min

Fields inherited from interface org.knowm.xchart.internal.chartpart.ChartPart

SOLID_STROKE

Constructor Summary

Constructors

Constructor	Description
Axis(Chart<ST,S> chart, Axis.Direction direction, int index)	Constructor

Method Summary

Modifier and Type	Method	Description
(package private) void	addMinMax(double min, double max)
(package private) AxisTick<ST,S>	getAxisTick()
AxisTickCalculator	getAxisTickCalculator()
private AxisTickCalculator	getAxisTickCalculator(double workingSpace)
private AxisTickCalculator_	getAxisTickCalculatorForX(double workingSpace)
private AxisTickCalculator	getAxisTickCalculatorForY(double workingSpace)
(package private) AxisTitle<ST,S>	getAxisTitle()
java.awt.geom.Rectangle2D	getBounds()
double	getChartValue(double screenPoint)	Converts a screen coordinate to chart coordinate value.
(package private) Series.DataType	getDataType()
private Axis.Direction	getDirection()
(package private) double	getMax()
(package private) double	getMin()
double	getScreenValue(double chartPoint)	Converts a chart coordinate value to screen coordinate.
double	getScreenValueForMax()
double	getScreenValueForMin()
private double	getXAxisHeightHint(double workingSpace)	The vertical Y-Axis is drawn first, but to know the lower bounds of it, we need to know how high the X-Axis paint zone is going to be.
private double	getYAxisWidthHint(double workingSpace)
int	getYIndex()
void	paint(java.awt.Graphics2D g)
void	preparePaint()
(package private) void	resetMinMax()	Reset the default min and max values in preparation for calculating the actual min and max
void	setDataType(Series.DataType dataType)
(package private) void	setMax(double max)
(package private) void	setMin(double min)

Methods inherited from class java.lang.Object

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

Field Detail

chart

private final Chart<ST extends AxesChartStyler,S extends AxesChartSeries> chart

bounds

private final java.awt.geom.Rectangle2D.Double bounds

axesChartStyler

private final ST extends AxesChartStyler axesChartStyler

axisTitle

private final AxisTitle<ST extends AxesChartStyler,S extends AxesChartSeries> axisTitle

the axis title

axisTick

private final AxisTick<ST extends AxesChartStyler,S extends AxesChartSeries> axisTick

the axis tick

direction

private final Axis.Direction direction

the axis direction

index

private final int index

the axis group index *

dataType

private Series.DataType dataType

the dataType

axisTickCalculator

private AxisTickCalculator axisTickCalculator

the axis tick calculator

min

private double min

max

private double max

Constructor Detail

Axis

public Axis(Chart<ST,S> chart,
            Axis.Direction direction,
            int index)

Constructor

Parameters:

chart - the Chart

direction - the axis direction (X or Y)

index - the y-axis index (not relevant for x-axes)

Method Detail

resetMinMax

void resetMinMax()

Reset the default min and max values in preparation for calculating the actual min and max

addMinMax

void addMinMax(double min,
               double max)

Parameters:

min -

max -

preparePaint

public void preparePaint()

paint

public void paint(java.awt.Graphics2D g)

Specified by:

paint in interface ChartPart

getXAxisHeightHint

private double getXAxisHeightHint(double workingSpace)

The vertical Y-Axis is drawn first, but to know the lower bounds of it, we need to know how high the X-Axis paint zone is going to be. Since the tick labels could be rotated, we need to actually determine the tick labels first to get an idea of how tall the X-Axis tick labels will be.

Returns:

the x-axis height hint

getYAxisWidthHint

private double getYAxisWidthHint(double workingSpace)

getAxisTickCalculator

private AxisTickCalculator getAxisTickCalculator(double workingSpace)

getAxisTickCalculatorForY

private AxisTickCalculator getAxisTickCalculatorForY(double workingSpace)

getAxisTickCalculatorForX

private AxisTickCalculator_ getAxisTickCalculatorForX(double workingSpace)

getDataType

Series.DataType getDataType()

setDataType

public void setDataType(Series.DataType dataType)

getMin

double getMin()

setMin

void setMin(double min)

getMax

double getMax()

setMax

void setMax(double max)

getAxisTick

AxisTick<ST,S> getAxisTick()

getDirection

private Axis.Direction getDirection()

getAxisTitle

AxisTitle<ST,S> getAxisTitle()

getAxisTickCalculator

public AxisTickCalculator getAxisTickCalculator()

getBounds

public java.awt.geom.Rectangle2D getBounds()

Specified by:

getBounds in interface ChartPart

getYIndex

public int getYIndex()

getScreenValue

public double getScreenValue(double chartPoint)

Converts a chart coordinate value to screen coordinate. Same as AxisTickCalculators calculation.

Parameters:

chartPoint - value in chart coordinate system

Returns:

Coordinate of screen. eg: MouseEvent.getX(), MouseEvent.getY()

getScreenValueForMin

public double getScreenValueForMin()

getScreenValueForMax

public double getScreenValueForMax()

getChartValue

public double getChartValue(double screenPoint)

Converts a screen coordinate to chart coordinate value. Reverses the AxisTickCalculators calculation.

Parameters:

screenPoint - Coordinate of screen. eg: MouseEvent.getX(), MouseEvent.getY()

Returns:

value in chart coordinate system