Package org.aesh.charts.axis

Class Axis

java.lang.Object

org.aesh.charts.axis.Axis

public class Axis
extends Object

Renders a numeric axis with labels and tick marks.

Constructor Summary

Constructors

Constructor	Description
Axis()

Method Summary

Modifier and Type	Method	Description
void	autoRange(double dataMin, double dataMax)	Auto-set min/max from data range with padding.
double	denormalize(double normalized)	Map a normalized position (0.0-1.0) back to a data value.
void	drawXAxis(Canvas canvas, int xLeft, int xRight, int y, ChartStyle style)	Draw a bottom X-axis on the canvas.
void	drawYAxis(Canvas canvas, int x, int yTop, int yBottom, ChartStyle style)	Draw a left Y-axis on the canvas.
Axis	format(String pattern)
String	formatTick(double value)	Format a tick value as a label string.
String	label()
Axis	label(String label)
int	labelWidth()	Compute the width needed for Y-axis labels (max label width + 1 for tick mark).
double	max()
Axis	max(double max)
double	min()
Axis	min(double min)
double	normalize(double value)	Map a data value to a normalized position (0.0 = min, 1.0 = max).
Scale	scale()
Axis	scale(Scale scale)
Axis	tickCount(int tickCount)
double[]	tickValues()	Generate tick values for this axis.

Methods inherited from class java.lang.Object

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

Constructor Details

Axis

public Axis()

Method Details

min

public Axis min(double min)

max

public Axis max(double max)

label

public Axis label(String label)

scale

public Axis scale(Scale scale)

tickCount

public Axis tickCount(int tickCount)

format

public Axis format(String pattern)

min

public double min()

max

public double max()

label

public String label()

scale

public Scale scale()

autoRange

public void autoRange(double dataMin,
 double dataMax)

Auto-set min/max from data range with padding.

normalize

public double normalize(double value)

Map a data value to a normalized position (0.0 = min, 1.0 = max).

denormalize

public double denormalize(double normalized)

Map a normalized position (0.0-1.0) back to a data value.

tickValues

public double[] tickValues()

Generate tick values for this axis.

formatTick

public String formatTick(double value)

Format a tick value as a label string.

labelWidth

public int labelWidth()

Compute the width needed for Y-axis labels (max label width + 1 for tick mark).

drawYAxis

public void drawYAxis(Canvas canvas,
 int x,
 int yTop,
 int yBottom,
 ChartStyle style)

Draw a left Y-axis on the canvas.

Parameters:

canvas - the canvas

x - x position of the axis line

yTop - top y position

yBottom - bottom y position

style - chart style

drawXAxis

public void drawXAxis(Canvas canvas,
 int xLeft,
 int xRight,
 int y,
 ChartStyle style)

Draw a bottom X-axis on the canvas.

Parameters:

canvas - the canvas

xLeft - left x position

xRight - right x position

y - y position of the axis line

style - chart style