Package smile.plot.swing

Class Projection

java.lang.Object

smile.plot.swing.Projection

public abstract class Projection
extends Object

Projection provides methods to map logical coordinates to Java2D coordinates. Both 2D and 3D logical coordinates are supported.

Constructor Summary

Constructors

Constructor	Description
Projection(Figure figure)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	height()	Returns the height of canvas.
void	reset()	Reset the base coordinates on Java2D screen.
int[]	screenProjection(double... coord)	Project logical coordinates to Java2D coordinates.
int[]	screenProjectionBaseRatio(double... coord)	Project logical coordinates in base ratio to Java2D coordinates.
void	setSize(int width, int height)	Sets the canvas size.
int	width()	Returns the width of canvas.

Methods inherited from class java.lang.Object

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

Constructor Details

Projection

public Projection(Figure figure)

Constructor.

Parameters:

figure - the figure to project.

Method Details

reset

public void reset()

Reset the base coordinates on Java2D screen.

setSize

public void setSize(int width,
 int height)

Sets the canvas size.

Parameters:

width - the canvas width.

height - the canvas height.

width

public int width()

Returns the width of canvas.

Returns:

the width of canvas.

height

public int height()

Returns the height of canvas.

Returns:

the height of canvas.

screenProjection

public int[] screenProjection(double... coord)

Project logical coordinates to Java2D coordinates.

Parameters:

coord - the logic coordinates.

Returns:

Java2D coordinates.

screenProjectionBaseRatio

public int[] screenProjectionBaseRatio(double... coord)

Project logical coordinates in base ratio to Java2D coordinates.

Parameters:

coord - the logic coordinates in base ratio.

Returns:

Java2D coordinates.