Camera
public
class
Camera
extends Object
java.lang.Object  
↳  android.graphics.Camera 
A camera instance can be used to compute 3D transformations and
generate a matrix that can be applied, for instance, on a
Canvas
.
Summary
Public constructors  

Camera()
Creates a new camera, with empty transformations. 
Public methods  

void

applyToCanvas(Canvas canvas)
Computes the matrix corresponding to the current transformation and applies it to the specified Canvas. 
float

dotWithNormal(float dx, float dy, float dz)

float

getLocationX()
Gets the x location of the camera. 
float

getLocationY()
Gets the y location of the camera. 
float

getLocationZ()
Gets the z location of the camera. 
void

getMatrix(Matrix matrix)
Computes the matrix corresponding to the current transformation and copies it to the supplied matrix object. 
void

restore()
Restores the saved state, if any. 
void

rotate(float x, float y, float z)
Applies a rotation transform around all three axis. 
void

rotateX(float deg)
Applies a rotation transform around the X axis. 
void

rotateY(float deg)
Applies a rotation transform around the Y axis. 
void

rotateZ(float deg)
Applies a rotation transform around the Z axis. 
void

save()
Saves the camera state. 
void

setLocation(float x, float y, float z)
Sets the location of the camera. 
void

translate(float x, float y, float z)
Applies a translation transform on all three axis. 
Protected methods  

void

finalize()
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. 
Inherited methods  

Public constructors
Public methods
applyToCanvas
void applyToCanvas (Canvas canvas)
Computes the matrix corresponding to the current transformation and applies it to the specified Canvas.
Parameters  

canvas 
Canvas : The Canvas to set the transform matrix onto

dotWithNormal
float dotWithNormal (float dx, float dy, float dz)
Parameters  

dx 
float 
dy 
float 
dz 
float 
Returns  

float 
getLocationX
float getLocationX ()
Gets the x location of the camera.
Returns  

float 
See also:
getLocationY
float getLocationY ()
Gets the y location of the camera.
Returns  

float 
See also:
getLocationZ
float getLocationZ ()
Gets the z location of the camera.
Returns  

float 
See also:
getMatrix
void getMatrix (Matrix matrix)
Computes the matrix corresponding to the current transformation and copies it to the supplied matrix object.
Parameters  

matrix 
Matrix : The matrix to copy the current transforms into

rotate
void rotate (float x, float y, float z)
Applies a rotation transform around all three axis.
Parameters  

x 
float : The angle of rotation around the X axis, in degrees 
y 
float : The angle of rotation around the Y axis, in degrees 
z 
float : The angle of rotation around the Z axis, in degrees 
rotateX
void rotateX (float deg)
Applies a rotation transform around the X axis.
Parameters  

deg 
float : The angle of rotation around the X axis, in degrees 
rotateY
void rotateY (float deg)
Applies a rotation transform around the Y axis.
Parameters  

deg 
float : The angle of rotation around the Y axis, in degrees 
rotateZ
void rotateZ (float deg)
Applies a rotation transform around the Z axis.
Parameters  

deg 
float : The angle of rotation around the Z axis, in degrees 
save
void save ()
Saves the camera state. Each save should be balanced
with a call to restore()
.
See also:
setLocation
void setLocation (float x, float y, float z)
Sets the location of the camera. The default location is set at 0, 0, 8.
Parameters  

x 
float : The x location of the camera 
y 
float : The y location of the camera 
z 
float : The z location of the camera

translate
void translate (float x, float y, float z)
Applies a translation transform on all three axis.
Parameters  

x 
float : The distance to translate by on the X axis 
y 
float : The distance to translate by on the Y axis 
z 
float : The distance to translate by on the Z axis

Protected methods
finalize
void finalize ()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
A subclass overrides the finalize
method to dispose of
system resources or to perform other cleanup.
The general contract of finalize
is that it is invoked
if and when the Java™ virtual
machine has determined that there is no longer any
means by which this object can be accessed by any thread that has
not yet died, except as a result of an action taken by the
finalization of some other object or class which is ready to be
finalized. The finalize
method may take any action, including
making this object available again to other threads; the usual purpose
of finalize
, however, is to perform cleanup actions before
the object is irrevocably discarded. For example, the finalize method
for an object that represents an input/output connection might perform
explicit I/O transactions to break the connection before the object is
permanently discarded.
The finalize
method of class Object
performs no
special action; it simply returns normally. Subclasses of
Object
may override this definition.
The Java programming language does not guarantee which thread will
invoke the finalize
method for any given object. It is
guaranteed, however, that the thread that invokes finalize will not
be holding any uservisible synchronization locks when finalize is
invoked. If an uncaught exception is thrown by the finalize method,
the exception is ignored and finalization of that object terminates.
After the finalize
method has been invoked for an object, no
further action is taken until the Java virtual machine has again
determined that there is no longer any means by which this object can
be accessed by any thread that has not yet died, including possible
actions by other objects or classes which are ready to be finalized,
at which point the object may be discarded.
The finalize
method is never invoked more than once by a Java
virtual machine for any given object.
Any exception thrown by the finalize
method causes
the finalization of this object to be halted, but is otherwise
ignored.
Throws  

Throwable 