m3g05
Class ViewTransformationsSample

java.lang.Object
  javax.microedition.lcdui.Displayable
      javax.microedition.lcdui.Canvas
          javax.microedition.lcdui.game.GameCanvas
              m3g05.ViewTransformationsSample

All Implemented Interfaces:

Sample

public class ViewTransformationsSample
extends javax.microedition.lcdui.game.GameCanvas
implements Sample

Demonstrates switching between portrait and landscape rendering by changing the camera transformation.

Author:

Claus Hoefele

Field Summary

private javax.microedition.m3g.Camera	camera Camera.
private javax.microedition.m3g.Transform	cameraTransform The camera's transformation.
private javax.microedition.lcdui.Graphics	graphics 2D graphics singleton used for rendering.
private javax.microedition.m3g.Graphics3D	graphics3d 3D graphics singleton used for rendering.
private javax.microedition.m3g.Mesh	mesh Mesh for display.
private javax.microedition.m3g.Transform	meshTransform The mesh's transformation.
private boolean	orientationPortrait True indicates portrait orientation, false landscape.
private float	rotY Current rotation value.

Fields inherited from class javax.microedition.lcdui.game.GameCanvas

DOWN_PRESSED, FIRE_PRESSED, GAME_A_PRESSED, GAME_B_PRESSED, GAME_C_PRESSED, GAME_D_PRESSED, LEFT_PRESSED, RIGHT_PRESSED, UP_PRESSED

Fields inherited from class javax.microedition.lcdui.Canvas

DOWN, FIRE, GAME_A, GAME_B, GAME_C, GAME_D, KEY_NUM0, KEY_NUM1, KEY_NUM2, KEY_NUM3, KEY_NUM4, KEY_NUM5, KEY_NUM6, KEY_NUM7, KEY_NUM8, KEY_NUM9, KEY_POUND, KEY_STAR, LEFT, RIGHT, UP

Constructor Summary

ViewTransformationsSample()
Constructor.

Method Summary

void	destroy() Destroys the sample.
private void	drawMenu(javax.microedition.lcdui.Graphics graphics) Draws a menu for the current key assignments.
void	init() Initializes the sample.
protected void	keyPressed(int keyCode) Handles key presses.
private void	render(javax.microedition.lcdui.Graphics graphics) Renders the sample.
private void	setCamera() Sets the camera in the Graphics3D context and initializes it with the current orientation and transformation parameters.

Methods inherited from class javax.microedition.lcdui.game.GameCanvas

flushGraphics, flushGraphics, getGraphics, getKeyStates, paint

Methods inherited from class javax.microedition.lcdui.Canvas

getGameAction, getKeyCode, getKeyName, hasPointerEvents, hasPointerMotionEvents, hasRepeatEvents, hideNotify, isDoubleBuffered, keyReleased, keyRepeated, pointerDragged, pointerPressed, pointerReleased, repaint, repaint, serviceRepaints, setCommandListener, setFullScreenMode, showNotify, sizeChanged

Methods inherited from class javax.microedition.lcdui.Displayable

addCommand, getHeight, getTicker, getTitle, getWidth, isShown, removeCommand, setTicker, setTitle

Methods inherited from class java.lang.Object

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

Field Detail

orientationPortrait

private boolean orientationPortrait

True indicates portrait orientation, false landscape.

mesh

private javax.microedition.m3g.Mesh mesh

Mesh for display.

meshTransform

private javax.microedition.m3g.Transform meshTransform

The mesh's transformation.

camera

private javax.microedition.m3g.Camera camera

Camera.

cameraTransform

private javax.microedition.m3g.Transform cameraTransform

The camera's transformation.

rotY

private float rotY

Current rotation value.

graphics3d

private javax.microedition.m3g.Graphics3D graphics3d

3D graphics singleton used for rendering.

graphics

private javax.microedition.lcdui.Graphics graphics

2D graphics singleton used for rendering.

Constructor Detail

ViewTransformationsSample

public ViewTransformationsSample()

Constructor.

Method Detail

init

public void init()

Initializes the sample.

Specified by:

init in interface Sample

setCamera

private void setCamera()

Sets the camera in the Graphics3D context and initializes it with the current orientation and transformation parameters.

destroy

public void destroy()

Destroys the sample.

Specified by:

destroy in interface Sample

render

private void render(javax.microedition.lcdui.Graphics graphics)

Renders the sample.

Parameters:

graphics - graphics context for rendering.

keyPressed

protected void keyPressed(int keyCode)

Handles key presses.

Overrides:

keyPressed in class javax.microedition.lcdui.Canvas

Parameters:

keyCode - key code.

drawMenu

private void drawMenu(javax.microedition.lcdui.Graphics graphics)

Draws a menu for the current key assignments.

Parameters:

graphics - graphics context for drawing.