File	Doc	Category	Size	Date	Package
Rotate3dAnimation.java	API Doc	Android 1.5 API	3475	Wed May 06 22:41:08 BST 2009	com.example.android.apis.animation

Rotate3dAnimation

• java.lang.Object
  • android.view.animation.Animation

Fields Summary
private final float	mFromDegrees
private final float	mToDegrees
private final float	mCenterX
private final float	mCenterY
private final float	mDepthZ
private final boolean	mReverse
private android.graphics.Camera	mCamera

Constructors Summary

public Rotate3dAnimation(float fromDegrees, float toDegrees, float centerX, float centerY, float depthZ, boolean reverse) Creates a new 3D rotation on the Y axis. The rotation is defined by its start angle and its end angle. Both angles are in degrees. The rotation is performed around a center point on the 2D space, definied by a pair of X and Y coordinates, called centerX and centerY. When the animation starts, a translation on the Z axis (depth) is performed. The length of the translation can be specified, as well as whether the translation should be reversed in time. param fromDegrees the start angle of the 3D rotation param toDegrees the end angle of the 3D rotation param centerX the X center of the 3D rotation param centerY the Y center of the 3D rotation param reverse true if the translation should be reversed, false otherwise mFromDegrees = fromDegrees; mToDegrees = toDegrees; mCenterX = centerX; mCenterY = centerY; mDepthZ = depthZ; mReverse = reverse;

Methods Summary
protected void	applyTransformation(float interpolatedTime, android.view.animation.Transformation t) final float fromDegrees = mFromDegrees; float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime); final float centerX = mCenterX; final float centerY = mCenterY; final Camera camera = mCamera; final Matrix matrix = t.getMatrix(); camera.save(); if (mReverse) { camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime); } else { camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime)); } camera.rotateY(degrees); camera.getMatrix(matrix); camera.restore(); matrix.preTranslate(-centerX, -centerY); matrix.postTranslate(centerX, centerY);
public void	initialize(int width, int height, int parentWidth, int parentHeight) super.initialize(width, height, parentWidth, parentHeight); mCamera = new Camera();