Class AxisTickCalculator_

java.lang.Object

org.knowm.xchart.internal.chartpart.AxisTickCalculator_

All Implemented Interfaces:

AxisTickCalculator

Direct Known Subclasses:

AxisTickCalculator_Callback, AxisTickCalculator_Category, AxisTickCalculator_Date, AxisTickCalculator_Logarithmic, AxisTickCalculator_Number

public abstract class AxisTickCalculator_
extends Object
implements AxisTickCalculator

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final Axis.Direction	axisDirection
(package private) Format	axisFormat
(package private) List<Double>	axisValues
(package private) final double	maxValue
(package private) final double	minValue
(package private) final AxesChartStyler	styler
(package private) final List<String>	tickLabels	the List of tick label values
(package private) final List<Double>	tickLocations	the List of tick label position in pixels
(package private) final double	workingSpace

Constructor Summary

Constructors

Constructor	Description
AxisTickCalculator_(Axis.Direction axisDirection, double workingSpace, double minValue, double maxValue, List<Double> axisValues, AxesChartStyler styler)
AxisTickCalculator_(Axis.Direction axisDirection, double workingSpace, double minValue, double maxValue, AxesChartStyler styler)	Constructor

Method Summary

Modifier and Type	Method	Description
(package private) boolean	areAllTickLabelsUnique(List<?> tickLabels)
private boolean	areValuesEquallySpaced(List<Double> values)
protected void	calculate()
private void	calculateForEquallySpacedAxisValues(double tickSpace, double margin)	Calculates the ticks so that they only appear at positions where data is available.
Format	getAxisFormat()
(package private) double	getFirstPosition(double gridStep)	Gets the first position
List<String>	getTickLabels()
List<Double>	getTickLocations()
private boolean	isNumberFormatChoppingDecimals(double axisMax, double axisMin)
(package private) boolean	willLabelsFitInTickSpaceHint(List<String> tickLabels, int tickSpacingHint)	Given the generated tickLabels, will they fit side-by-side without overlapping each other and looking bad? Sometimes the given tickSpacingHint is simply too small.

Methods inherited from class Object

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

Field Details

tickLocations

final List<Double> tickLocations

the List of tick label position in pixels

tickLabels

final List<String> tickLabels

the List of tick label values

axisDirection

final Axis.Direction axisDirection

workingSpace

final double workingSpace

minValue

final double minValue

maxValue

final double maxValue

axisValues

List<Double> axisValues

styler

final AxesChartStyler styler

axisFormat

Format axisFormat

Constructor Details

AxisTickCalculator_

AxisTickCalculator_(Axis.Direction axisDirection,
 double workingSpace,
 double minValue,
 double maxValue,
 AxesChartStyler styler)

Constructor

Parameters:

axisDirection -

workingSpace -

minValue -

maxValue -

styler -

AxisTickCalculator_

AxisTickCalculator_(Axis.Direction axisDirection,
 double workingSpace,
 double minValue,
 double maxValue,
 List<Double> axisValues,
 AxesChartStyler styler)

Method Details

getFirstPosition

double getFirstPosition(double gridStep)

Gets the first position

Parameters:

gridStep -

Returns:

getTickLocations

public List<Double> getTickLocations()

Specified by:

getTickLocations in interface AxisTickCalculator

getTickLabels

public List<String> getTickLabels()

Specified by:

getTickLabels in interface AxisTickCalculator

willLabelsFitInTickSpaceHint

boolean willLabelsFitInTickSpaceHint(List<String> tickLabels,
 int tickSpacingHint)

Given the generated tickLabels, will they fit side-by-side without overlapping each other and looking bad? Sometimes the given tickSpacingHint is simply too small.

Parameters:

tickLabels -

tickSpacingHint -

Returns:

getAxisFormat

public Format getAxisFormat()

Specified by:

getAxisFormat in interface AxisTickCalculator

calculate

protected void calculate()

areValuesEquallySpaced

private boolean areValuesEquallySpaced(List<Double> values)

calculateForEquallySpacedAxisValues

private void calculateForEquallySpacedAxisValues(double tickSpace,
 double margin)

Calculates the ticks so that they only appear at positions where data is available.

Parameters:

tickSpace - a percentage of the working space available for ticks

margin - where the tick should begin in the working space in pixels

areAllTickLabelsUnique

boolean areAllTickLabelsUnique(List<?> tickLabels)

isNumberFormatChoppingDecimals

private boolean isNumberFormatChoppingDecimals(double axisMax,
 double axisMin)