com.brackeen.javagamebook.math3D
Class ViewWindow

java.lang.Object
  com.brackeen.javagamebook.math3D.ViewWindow

public class ViewWindow

extends java.lang.Object

The ViewWindow class represents the geometry of a view window for 3D viewing.

Constructor Summary

ViewWindow(int left, int top, int width, int height, float angle)
Creates a new ViewWindow with the specified bounds on the screen and horizontal view angle.

Method Summary

float	convertFromScreenXToViewX(float x) Converts an x coordinate on the screen to the corresponding x coordinate on this view window.
float	convertFromScreenYToViewY(float y) Converts an y coordinate on the screen to the corresponding y coordinate on this view window.
float	convertFromViewXToScreenX(float x) Converts an x coordinate on this view window to the corresponding x coordinate on the screen.
float	convertFromViewYToScreenY(float y) Converts a y coordinate on this view window to the corresponding y coordinate on the screen.
float	getAngle() Gets the horizontal view angle of this view window.
float	getDistance() Gets the distance from the camera to to this view window.
int	getHeight() Gets the height of this view window.
int	getLeftOffset() Gets the x offset of this view window on the screen.
int	getTopOffset() Gets the y offset of this view window on the screen.
int	getWidth() Gets the width of this view window.
void	project(Vector3D v) Projects the specified vector to the screen.
void	setAngle(float angle) Sets the horizontal view angle for this ViewWindow.
void	setBounds(int left, int top, int width, int height) Sets the bounds for this ViewWindow on the screen.

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewWindow

public ViewWindow(int left,
                  int top,
                  int width,
                  int height,
                  float angle)

Creates a new ViewWindow with the specified bounds on the screen and horizontal view angle.

Method Detail

setBounds

public void setBounds(int left,
                      int top,
                      int width,
                      int height)

Sets the bounds for this ViewWindow on the screen.

setAngle

public void setAngle(float angle)

Sets the horizontal view angle for this ViewWindow.

getAngle

public float getAngle()

Gets the horizontal view angle of this view window.

getWidth

public int getWidth()

Gets the width of this view window.

getHeight

public int getHeight()

Gets the height of this view window.

getTopOffset

public int getTopOffset()

Gets the y offset of this view window on the screen.

getLeftOffset

public int getLeftOffset()

Gets the x offset of this view window on the screen.

getDistance

public float getDistance()

Gets the distance from the camera to to this view window.

convertFromViewXToScreenX

public float convertFromViewXToScreenX(float x)

Converts an x coordinate on this view window to the corresponding x coordinate on the screen.

convertFromViewYToScreenY

public float convertFromViewYToScreenY(float y)

Converts a y coordinate on this view window to the corresponding y coordinate on the screen.

convertFromScreenXToViewX

public float convertFromScreenXToViewX(float x)

Converts an x coordinate on the screen to the corresponding x coordinate on this view window.

convertFromScreenYToViewY

public float convertFromScreenYToViewY(float y)

Converts an y coordinate on the screen to the corresponding y coordinate on this view window.

project

public void project(Vector3D v)

Projects the specified vector to the screen.