Constructor and Description |
---|
Camera()
Creates a new camera, with empty transformations.
|
Modifier and Type | Method and Description |
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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) |
protected void |
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
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.
|
public void save()
restore()
.save()
public void restore()
restore()
public void translate(float x, float y, float z)
x
- The distance to translate by on the X axisy
- The distance to translate by on the Y axisz
- The distance to translate by on the Z axispublic void rotateX(float deg)
deg
- The angle of rotation around the X axis, in degreesrotateY(float)
,
rotateZ(float)
,
rotate(float, float, float)
public void rotateY(float deg)
deg
- The angle of rotation around the Y axis, in degreesrotateX(float)
,
rotateZ(float)
,
rotate(float, float, float)
public void rotateZ(float deg)
deg
- The angle of rotation around the Z axis, in degreesrotateX(float)
,
rotateY(float)
,
rotate(float, float, float)
public void rotate(float x, float y, float z)
x
- The angle of rotation around the X axis, in degreesy
- The angle of rotation around the Y axis, in degreesz
- The angle of rotation around the Z axis, in degreesrotateX(float)
,
rotateY(float)
,
rotateZ(float)
public float getLocationX()
setLocation(float, float, float)
public float getLocationY()
setLocation(float, float, float)
public float getLocationZ()
setLocation(float, float, float)
public void setLocation(float x, float y, float z)
x
- The x location of the cameray
- The y location of the cameraz
- The z location of the camerapublic void getMatrix(Matrix matrix)
matrix
- The matrix to copy the current transforms intopublic void applyToCanvas(Canvas canvas)
canvas
- The Canvas to set the transform matrix ontopublic float dotWithNormal(float dx, float dy, float dz)
protected void finalize() throws Throwable
Object
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 JavaTM 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 user-visible 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.