2014/10/16 上午 08:23:32

android Programming Glossary: screenh

Android OpenGL ES 2.0 screen coordinates to world coordinates

http://stackoverflow.com/questions/10985487/android-opengl-es-2-0-screen-coordinates-to-world-coordinates

camera object with x y z of the camera and screenWidth and screenHeight of the device. @return position in WCS. public Vec2 GetWorldCoords.. width ej 320 x 480 float screenW cam.GetScreenWidth float screenH cam.GetScreenHeight Auxiliary matrix and vectors to deal with.. uses top left and ogl bottom left. int oglTouchY int screenH touch.Y Transform the screen point to clip space in ogl 1 1..

How to draw a path on an Android canvas with animation?

http://stackoverflow.com/questions/12037709/how-to-draw-a-path-on-an-android-canvas-with-animation

View private static Paint paint private int screenW screenH private float X Y private Path path private float initialScreenW.. oldw int oldh super.onSizeChanged w h oldw oldh screenW w screenH h X 0 Y screenH 2 screenH 4 screenH 10 initialScreenW screenW.. w h oldw oldh screenW w screenH h X 0 Y screenH 2 screenH 4 screenH 10 initialScreenW screenW initialX screenW..

How can I use the animation framework inside the canvas?

http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas

this class BallBounce extends View int screenW int screenH int X int Y int initialY int ballW int ballH int angle float.. oldw int oldh super.onSizeChanged w h oldw oldh screenW w screenH h bgr Bitmap.createScaledBitmap bgr w h true Resize background.. Y int dY Increase or decrease vertical position. if Y screenH ballH dY 1 dY Reverse speed when bottom hit. dY acc Increase..

Android OpenGL ES 2.0 screen coordinates to world coordinates

http://stackoverflow.com/questions/10985487/android-opengl-es-2-0-screen-coordinates-to-world-coordinates

actual position on physical screen ej 160 240 @param cam camera object with x y z of the camera and screenWidth and screenHeight of the device. @return position in WCS. public Vec2 GetWorldCoords Vec2 touch Camera cam Initialize auxiliary variables... auxiliary variables. Vec2 worldPos new Vec2 SCREEN height width ej 320 x 480 float screenW cam.GetScreenWidth float screenH cam.GetScreenHeight Auxiliary matrix and vectors to deal with ogl. float invertedMatrix transformMatrix normalizedInPoint.. new float 4 outPoint new float 4 Invert y coordinate as android uses top left and ogl bottom left. int oglTouchY int screenH touch.Y Transform the screen point to clip space in ogl 1 1 normalizedInPoint 0 float touch.X 2.0f screenW 1.0 normalizedInPoint..

How to draw a path on an Android canvas with animation?

http://stackoverflow.com/questions/12037709/how-to-draw-a-path-on-an-android-canvas-with-animation

new HeartbeatView this public static class HeartbeatView extends View private static Paint paint private int screenW screenH private float X Y private Path path private float initialScreenW private float initialX plusX private float TX private boolean.. 0 @Override public void onSizeChanged int w int h int oldw int oldh super.onSizeChanged w h oldw oldh screenW w screenH h X 0 Y screenH 2 screenH 4 screenH 10 initialScreenW screenW initialX screenW 2 screenW 4 plusX screenW 24 path.moveTo.. public void onSizeChanged int w int h int oldw int oldh super.onSizeChanged w h oldw oldh screenW w screenH h X 0 Y screenH 2 screenH 4 screenH 10 initialScreenW screenW initialX screenW 2 screenW 4 plusX screenW 24 path.moveTo X Y @Override..

How can I use the animation framework inside the canvas?

http://stackoverflow.com/questions/4938822/how-can-i-use-the-animation-framework-inside-the-canvas

super.onCreate savedInstanceState setContentView new BallBounce this class BallBounce extends View int screenW int screenH int X int Y int initialY int ballW int ballH int angle float dY float acc Bitmap ball bgr public BallBounce Context context.. angle. @Override public void onSizeChanged int w int h int oldw int oldh super.onSizeChanged w h oldw oldh screenW w screenH h bgr Bitmap.createScaledBitmap bgr w h true Resize background to fit the screen. X int screenW 2 ballW 2 Centre ball into.. bgr 0 0 null Compute roughly ball speed and location. Y int dY Increase or decrease vertical position. if Y screenH ballH dY 1 dY Reverse speed when bottom hit. dY acc Increase or decrease speed. Increase rotating angle. if angle 360..