com.jidesoft.chart.axis
Class DefaultNumericTickCalculator

java.lang.Object
  com.jidesoft.chart.axis.DefaultNumericTickCalculator

All Implemented Interfaces:

NumericTickCalculator, TickCalculator<Double>

Direct Known Subclasses:

IntegerTickCalculator

public class DefaultNumericTickCalculator
extends Object
implements NumericTickCalculator

A default implementation of a tick calculator for numeric values.

Field Summary

static String	PROPERTY_NUMBER_FORMAT
static String	PROPERTY_TICK_INTERVALS_BETWEEN_MAJORS

Constructor Summary

DefaultNumericTickCalculator()

Method Summary

void	addPropertyChangeListener(PropertyChangeListener listener) Register an object's interest in property changes on this object
Tick[]	calculateTicks(Range<Double> r) Works out where to place the tick markers
int	getMinorTickIntervalBetweenMajors() Returns the number of intervals between major ticks.
NumberFormat	getNumberFormat() Returns the number format used for generating tick labels
void	removePropertyChangeListener(PropertyChangeListener listener) De-register an object's interest in property changes on this object
void	setMinorTickIntervalBetweenMajors(int minorTickIntervalBetweenMajors) Set the number of ticks between major ticks by specifying the number of intervals.
void	setNumberFormat(NumberFormat numberFormat) By default the number format used for generating the ticks uses a maximum of 2 digits for the fractional part.
void	setNumberFormat(String numberFormat) The string to use for the number format is as used in the applyPattern method of DecimalFormat.

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_NUMBER_FORMAT

public static final String PROPERTY_NUMBER_FORMAT

See Also:

Constant Field Values

PROPERTY_TICK_INTERVALS_BETWEEN_MAJORS

public static final String PROPERTY_TICK_INTERVALS_BETWEEN_MAJORS

See Also:

Constant Field Values

Constructor Detail

DefaultNumericTickCalculator

public DefaultNumericTickCalculator()

Method Detail

getMinorTickIntervalBetweenMajors

public int getMinorTickIntervalBetweenMajors()

Returns the number of intervals between major ticks. The number of intervals is one more than the number of minor ticks, as the end intervals are delimited by major ticks.

Returns:

the number of intervals between major ticks

setMinorTickIntervalBetweenMajors

public void setMinorTickIntervalBetweenMajors(int minorTickIntervalBetweenMajors)

Set the number of ticks between major ticks by specifying the number of intervals. For example if you want 5 subdivisions between major ticks then you specify 5 as the parameter to this method. This means that you actually get 4 minor ticks between the major ticks.

Parameters:

minorTickIntervalBetweenMajors - specify the number of intervals between major ticks

getNumberFormat

public NumberFormat getNumberFormat()

Returns the number format used for generating tick labels

Specified by:

getNumberFormat in interface NumericTickCalculator

Returns:

the number format used for generating tick labels

setNumberFormat

public void setNumberFormat(NumberFormat numberFormat)

By default the number format used for generating the ticks uses a maximum of 2 digits for the fractional part.

Specified by:

setNumberFormat in interface NumericTickCalculator

Parameters:

numberFormat - the new number format object

setNumberFormat

public void setNumberFormat(String numberFormat)

The string to use for the number format is as used in the applyPattern method of DecimalFormat.

Specified by:

setNumberFormat in interface NumericTickCalculator

Parameters:

numberFormat - the number format to use

calculateTicks

public Tick[] calculateTicks(Range<Double> r)

Works out where to place the tick markers

Specified by:

calculateTicks in interface TickCalculator<Double>

Returns:

an array of tick values

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Register an object's interest in property changes on this object

Specified by:

addPropertyChangeListener in interface TickCalculator<Double>

Parameters:

listener - the interested object that will be notified when a change occurs

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

De-register an object's interest in property changes on this object

Specified by:

removePropertyChangeListener in interface TickCalculator<Double>

Parameters:

listener - the object that will no longer be notified of changes