jhplot

Class HLabel

java.lang.Object

jhplot.HLabel

All Implemented Interfaces:

java.io.Serializable

public class HLabel
extends java.lang.Object
implements java.io.Serializable

Create an interactive label using HPlot canvas. The label can be defined in the NDC (normalized coordinate system) or the USER coordinate. Only one line of the text can be shown. To show several lines of the text, use

See Also:

class For more labels look at the shape package, Serialized Form

Constructor Summary

Constructors

Constructor and Description
HLabel(java.lang.String s) Make a label with default attributes
HLabel(java.lang.String s, double x, double y) Make a label with specific coordinated in the data system
HLabel(java.lang.String s, double x, double y, java.lang.String howToSet) Make a label with specific coordinates.
HLabel(java.lang.String s, java.awt.Font f) Make a label (color- black)
HLabel(java.lang.String s, java.awt.Font f, java.awt.Color c) Make a text label at (0,0) in the data coordinates (USER).

Method Summary

Modifier and Type	Method and Description
void	doc() Show online documentation.
java.awt.Color	getColor() Get color of a label.
java.awt.Font	getFont() Get the font of the label text.
jplot.GraphLabel	getGraphLabel() Get a label with default attributes
int	getPositionCoordinate() Is the position set?
double	getRotation() Returns the rotation angle.
java.lang.String	getText() Get the text of the label.
double	getX() Returns the X position of the text.
double	getY() Returns the Y position of the text.
void	setColor(java.awt.Color c) Sets the color to a specific value
void	setFont(java.awt.Font f) Sets the font to a specific value
void	setLocation(double x, double y) Sets the location of the label in the NDC coordinates.
void	setLocation(double x, double y, java.lang.String howToSet) Sets the location of the label in data coordinates.
void	setRotation(double r) Sets the rotation angle.
void	setText(java.lang.String s) Sets a text of the label.

Methods inherited from class java.lang.Object

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

Constructor Detail

HLabel

public HLabel(java.lang.String s,
              java.awt.Font f,
              java.awt.Color c)

Make a text label at (0,0) in the data coordinates (USER). The position is depends of the user coordinated, so consider NDC.

Parameters:

s - Text

f - Font

c - Color

HLabel

public HLabel(java.lang.String s,
              java.awt.Font f)

Make a label (color- black)

Parameters:

s - Text

f - Font

HLabel

public HLabel(java.lang.String s)

Make a label with default attributes

Parameters:

s - text

HLabel

public HLabel(java.lang.String s,
              double x,
              double y)

Make a label with specific coordinated in the data system

Parameters:

s - Text

x - Position in X

y - Position in Y

HLabel

public HLabel(java.lang.String s,
              double x,
              double y,
              java.lang.String howToSet)

Make a label with specific coordinates.

Parameters:

s - Text

x - position in X

y - position in Y

howToSet - set it to "NDC" for normalized coordinates (in the range 0-1). This is a data independent position set it to "USER" for the user coordinates

Method Detail

setText

public void setText(java.lang.String s)

Sets a text of the label.

Parameters:

s - new text for the label

getText

public java.lang.String getText()

Get the text of the label.

Returns:

the current text of the label

setColor

public void setColor(java.awt.Color c)

Sets the color to a specific value

Parameters:

c - color used to draw the label

getColor

public java.awt.Color getColor()

Get color of a label.

Returns:

the color used to draw the label

setFont

public void setFont(java.awt.Font f)

Sets the font to a specific value

Parameters:

f - font used to draw the label

getFont

public java.awt.Font getFont()

Get the font of the label text.

Returns:

the font used to draw the label

setRotation

public void setRotation(double r)

Sets the rotation angle. Although all kind of angles (in PI-units) are allowed, internally we only use the interval 0-2pi hence we take care of all other cases.

Parameters:

r - angle for this label

getRotation

public double getRotation()

Returns the rotation angle.

Returns:

angle for this label

setLocation

public void setLocation(double x,
                        double y)

Sets the location of the label in the NDC coordinates. Ones set this way, you cannot plot the label, it must first define the location in pixel-coordinates (setLocation(x,y));

Parameters:

x - x-position of the lower-left corner of the text

y - y-position of the lower-left corner of the text

setLocation

public void setLocation(double x,
                        double y,
                        java.lang.String howToSet)

Sets the location of the label in data coordinates. Ones set this way, you cannot plot the label, it must first define the location in pixel-coordinates (setLocation(x,y));

Parameters:

x - x-position of the lower-left corner of the text

y - y-position of the lower-left corner of the text

howToSet - set it to "NDC" for normalized coordinates (in the range 0-1). This is a data independent position set it to "USER" for the user coordinates

getPositionCoordinate

public int getPositionCoordinate()

Is the position set?

Returns:

zero if location is not defined of unity if the position is defined in the NDC system 2 if the location is defined in the user coordinates

getX

public double getX()

Returns the X position of the text.

Returns:

the x-position of the text

getY

public double getY()

Returns the Y position of the text.

Returns:

the y-position of the text

getGraphLabel

public jplot.GraphLabel getGraphLabel()

Get a label with default attributes

Returns:

get GraphLabel

doc

public void doc()

Show online documentation.