Package hec.geometry

Class LogAxis

java.lang.Object

java.util.Observable

hec.geometry.Axis

hec.geometry.LogAxis

All Implemented Interfaces:

AdjustmentListener, Serializable, EventListener

public class LogAxis
extends Axis

This axis represents a logarithmic scale. G2d plots can take advantage of this axis in order to display data on a logarithmic scale

Since:

September 28, 2000

See Also:

• Axis
• TSAxis
• SeasonalAxis
• Serialized Form

Field Summary

Fields inherited from class hec.geometry.Axis

_axisProp, CATEGORY, COMPUTED_SCALE, DEBUG, DEFAULT_AXIS_MAX, DEFAULT_AXIS_MIN, LABEL_CHANGE, LINEAR, LOGARITHMIC, m_observerList, NEW_ZOOM, PROBABILITY, SEASONAL, TIME, XAXIS, YAXIS

Constructor Summary

Constructors

Constructor	Description
LogAxis(String n)	Default Constructor

Method Summary

Modifier and Type	Method	Description
void	adjustmentValueChanged(AdjustmentEvent e)
void	computeNiceMinMax()	Find a nice tic interval
void	computeScaling()
void	computeScaling(double min, double max)	computes the scaling based on the min and max values in world coordinates
void	computeScaling(int iview)
int	computeScrollPosition()	Computes an integer value based on the max/min and the current view max/min that represents a position on a scroll bar
void	computeTicInterval()	Find a nice tic interval
double	getMin()
int	getType()
WorldPt	getWorldExtents()
void	growWorldExtents(double min, double max)
boolean	isValidMinMax(double min, double max)
double	l2w(int l)	returns the world value for the given local value
double	l2wE(double l)	returns the world value for the given local value
void	setWorldExtents(double min, double max)
void	unZoom()
void	updateRatedFunctionScroll(Axis baseAxis, AdjustmentEvent e)
int	w2l(double w)	returns the local value for the given world value
double	w2lE(double w)	returns the local value for the given world value
void	zoomByFactor(double factor)	Change the zoom scaling by the given factor.
void	zoomIn(double wmin, double wmax)	Zooms based on world coordinates
void	zoomIn(int imin, int imax)	Zooms in based on local coordinates
void	zoomInUnMod(double wmin, double wmax)	Zooms based on world coordinates

Methods inherited from class hec.geometry.Axis

addObserver, computeAutoViewValues, deleteObserver, deleteObservers, getActMax, getActMin, getAxisProp, getDataMax, getDataMin, getDataUnitSystem, getDisplayUnitsString, getDisplayUnitSystem, getLabel, getMajorTic, getMax, getMinorTic, getName, getNumTicLabelLevels, getObserverList, getOldDisplayUnitSystem, getOrigin, getParameterId, getRatedValue, getRatingFunction, getReversed, getScaledLabel, getScaleMax, getScaleMin, getSigFig, getThousPow, getThousScale, getTicColor, getTicColorString, getTicTextColor, getTicTextColorString, getUnRatedValue, getViewMax, getViewMin, getWorldRange, getZoom, growToGlyphBounds, invalidateWorldExtents, isComputingMajorTics, isComputingMinorTics, isReversed, isUsingAutomaticMaximum, isUsingAutomaticMinimum, isUsingAutomaticViewMaximum, isUsingAutomaticViewMinimum, isUsingDefaultLimits, popLabel, pushLabel, rateAxis, setActualMaximumValue, setActualMinimumValue, setAutomaticMaximumOff, setAutomaticMaximumOn, setAutomaticMinimumOff, setAutomaticMinimumOn, setAutomaticViewMaximumOff, setAutomaticViewMaximumOn, setAutomaticViewMinimumOff, setAutomaticViewMinimumOn, setAxisProp, setComputeMajorTics, setComputeMajorTicsOff, setComputeMajorTicsOn, setComputeMinorTics, setComputeMinorTicsOff, setComputeMinorTicsOn, setDataUnitSystem, setDefaultExtents, setDisplayScaleFactor, setDisplayUnitSystem, setLabel, setMajorTicInterval, setMaximumFactionDigits, setMaximumLimit, setMinimumLimit, setMinMax, setMinorTicInterval, setName, setNumberOfTicLabelLayers, setNumTicLabelLevels, setOrigin, setParameterId, setRatingFunction, setRatingFunction, setReversed, setReversedOff, setReversedOn, setScaleLimits, setTicColor, setTicColor, setTicTextColor, setTicTextColor, setUnit, setUseDefaultLimitsOff, setUseDefaultLimitsOn, setViewLimits, setWorldMinExtent

Methods inherited from class java.util.Observable

clearChanged, countObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Constructor Details

LogAxis

public LogAxis(String n)

Default Constructor

Method Details

getType

public int getType()

Overrides:

getType in class Axis

unZoom

public void unZoom()

Overrides:

unZoom in class Axis

computeScaling

public void computeScaling(double min,
 double max)

computes the scaling based on the min and max values in world coordinates

Overrides:

computeScaling in class Axis

computeScaling

public void computeScaling()

Overrides:

computeScaling in class Axis

computeScrollPosition

public int computeScrollPosition()

Computes an integer value based on the max/min and the current view max/min that represents a position on a scroll bar

Overrides:

computeScrollPosition in class Axis

Returns:

adjustmentValueChanged

public void adjustmentValueChanged(AdjustmentEvent e)

Specified by:

adjustmentValueChanged in interface AdjustmentListener

Overrides:

adjustmentValueChanged in class Axis

updateRatedFunctionScroll

public void updateRatedFunctionScroll(Axis baseAxis,
 AdjustmentEvent e)

Overrides:

updateRatedFunctionScroll in class Axis

zoomInUnMod

public void zoomInUnMod(double wmin,
 double wmax)

Zooms based on world coordinates

Overrides:

zoomInUnMod in class Axis

zoomIn

public void zoomIn(double wmin,
 double wmax)

Zooms based on world coordinates

Overrides:

zoomIn in class Axis

zoomIn

public void zoomIn(int imin,
 int imax)

Zooms in based on local coordinates

Overrides:

zoomIn in class Axis

zoomByFactor

public void zoomByFactor(double factor)

Change the zoom scaling by the given factor.

Overrides:

zoomByFactor in class Axis

isValidMinMax

public boolean isValidMinMax(double min,
 double max)

setWorldExtents

public void setWorldExtents(double min,
 double max)

Overrides:

setWorldExtents in class Axis

growWorldExtents

public void growWorldExtents(double min,
 double max)

Overrides:

growWorldExtents in class Axis

getWorldExtents

public WorldPt getWorldExtents()

Overrides:

getWorldExtents in class Axis

getMin

public double getMin()

Overrides:

getMin in class Axis

computeScaling

public void computeScaling(int iview)

Overrides:

computeScaling in class Axis

w2l

public int w2l(double w)

returns the local value for the given world value

Overrides:

w2l in class Axis

Returns:

w2lE

public double w2lE(double w)

returns the local value for the given world value

Overrides:

w2lE in class Axis

Returns:

l2w

public double l2w(int l)

returns the world value for the given local value

Overrides:

l2w in class Axis

Returns:

l2wE

public double l2wE(double l)

returns the world value for the given local value

Overrides:

l2wE in class Axis

Returns:

computeNiceMinMax

public void computeNiceMinMax()

Description copied from class: Axis

Find a nice tic interval

Overrides:

computeNiceMinMax in class Axis

computeTicInterval

public void computeTicInterval()

Find a nice tic interval

Overrides:

computeTicInterval in class Axis