visad.java3d
Class MouseBehaviorJ3D

java.lang.Object
  javax.media.j3d.SceneGraphObject
      javax.media.j3d.Node
          javax.media.j3d.Leaf
              javax.media.j3d.Behavior
                  visad.java3d.MouseBehaviorJ3D

All Implemented Interfaces:

MouseBehavior

Direct Known Subclasses:

WandBehaviorJ3D

public class MouseBehaviorJ3D

extends javax.media.j3d.Behavior

implements MouseBehavior

MouseBehaviorJ3D is the VisAD class for mouse behaviors for Java3D

Field Summary

(package private) DisplayImpl	display
(package private) DisplayRendererJ3D	display_renderer DisplayRenderer for Display
(package private) static double	EPS
(package private) MouseHelper	helper

Fields inherited from class javax.media.j3d.Node

ALLOW_AUTO_COMPUTE_BOUNDS_READ, ALLOW_AUTO_COMPUTE_BOUNDS_WRITE, ALLOW_BOUNDS_READ, ALLOW_BOUNDS_WRITE, ALLOW_COLLIDABLE_READ, ALLOW_COLLIDABLE_WRITE, ALLOW_LOCAL_TO_VWORLD_READ, ALLOW_LOCALE_READ, ALLOW_PARENT_READ, ALLOW_PICKABLE_READ, ALLOW_PICKABLE_WRITE, ENABLE_COLLISION_REPORTING, ENABLE_PICK_REPORTING

Fields inherited from class javax.media.j3d.SceneGraphObject

Constructor Summary

MouseBehaviorJ3D()
Default Constructor

MouseBehaviorJ3D(DisplayRendererJ3D r)
Construct a MouseBehavior for the DisplayRenderer specified

MouseBehaviorJ3D(DisplayRendererJ3D r, Class mhClass)
Construct a MouseBehavior for the DisplayRenderer specified

Method Summary

VisADRay	cursorRay(double[] cursor) Return the VisAD ray corresponding to the VisAD cursor coordinates.
void	destroy()
VisADRay	findRay(int screen_x, int screen_y) Return the VisAD ray corresponding to the component coordinates.
MouseHelper	getMouseHelper() Get the helper class used by this MouseBehavior.
int[]	getScreenCoords(double[] position) Return the screen coordinates corresponding to the VisAD coordinates.
void	initialize() Initialize this behavior.
void	instance_unmake_matrix(double[] rot, double[] scale, double[] trans, double[] matrix) Get the rotation, scale and translation parameters for the specified matrix.
double[]	make_matrix(double rotx, double roty, double rotz, double scale, double transx, double transy, double transz) Make a transformation matrix to perform the given rotation, scale and translation.
double[]	make_matrix(double rotx, double roty, double rotz, double scalex, double scaley, double scalez, double transx, double transy, double transz) Make a transformation matrix to perform the given rotation, scale and translation.
double[]	make_translate(double transx, double transy) Create a translation matrix.
double[]	make_translate(double transx, double transy, double transz) Create a translation matrix.
double[]	multiply_matrix(double[] a, double[] b) Multiply the two matrices together.
void	processStimulus(Enumeration criteria) Process a stimulus meant for this behavior.
(package private) void	setWakeup() Wakeup when necessary
static double[]	static_make_matrix(double rotx, double roty, double rotz, double scale, double transx, double transy, double transz) Make a transformation matrix to perform the given rotation, scale and translation.
static double[]	static_make_matrix(double rotx, double roty, double rotz, double scalex, double scaley, double scalez, double transx, double transy, double transz) Make a transformation matrix to perform the given rotation, scale and translation.
static double[]	static_multiply_matrix(double[] a, double[] b) Multiply the two matrices together.
static void	unmake_matrix(double[] rot, double[] scale, double[] trans, double[] matrix) Get the rotation, scale and translation parameters for the specified matrix.

Methods inherited from class javax.media.j3d.Behavior

getEnable, getNumSchedulingIntervals, getSchedulingBoundingLeaf, getSchedulingBounds, getSchedulingInterval, getView, getWakeupCondition, postId, setEnable, setSchedulingBoundingLeaf, setSchedulingBounds, setSchedulingInterval, updateNodeReferences, wakeupOn

Methods inherited from class javax.media.j3d.Node

cloneNode, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, duplicateNode, getBounds, getBoundsAutoCompute, getCollidable, getLocale, getLocalToVworld, getLocalToVworld, getParent, getPickable, setBounds, setBoundsAutoCompute, setCollidable, setPickable

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, duplicateSceneGraphObject, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

display_renderer

DisplayRendererJ3D display_renderer

DisplayRenderer for Display

display

DisplayImpl display

helper

MouseHelper helper

EPS

static final double EPS

See Also:

Constant Field Values

Constructor Detail

MouseBehaviorJ3D

public MouseBehaviorJ3D()

Default Constructor

MouseBehaviorJ3D

public MouseBehaviorJ3D(DisplayRendererJ3D r)

Construct a MouseBehavior for the DisplayRenderer specified

Parameters:

r - DisplayRenderer to use

MouseBehaviorJ3D

public MouseBehaviorJ3D(DisplayRendererJ3D r,
                        Class mhClass)

Construct a MouseBehavior for the DisplayRenderer specified

Parameters:

r - DisplayRenderer to use

mhClass - MouseHelper subclass to use

Method Detail

destroy

public void destroy()

getMouseHelper

public MouseHelper getMouseHelper()

Get the helper class used by this MouseBehavior. The MouseHelper defines the actions taken based on MouseEvents.

Specified by:

getMouseHelper in interface MouseBehavior

Returns:

MouseHelper being used.

initialize

public void initialize()

Initialize this behavior. NOTE: Applications should not call this method. It is called by the Java 3D behavior scheduler.

processStimulus

public void processStimulus(Enumeration criteria)

Process a stimulus meant for this behavior. This method is invoked when a key is pressed. NOTE: Applications should not call this method. It is called by the Java 3D behavior scheduler.

Parameters:

criteria - an enumeration of triggered wakeup criteria

findRay

public VisADRay findRay(int screen_x,
                        int screen_y)

Return the VisAD ray corresponding to the component coordinates.

Specified by:

findRay in interface MouseBehavior

Parameters:

screen_x - x coordinate of the component

screen_y - y coordinate of the component

Returns:

corresponding VisADRay

See Also:

VisADRay, LocalDisplay.getComponent()

cursorRay

public VisADRay cursorRay(double[] cursor)

Return the VisAD ray corresponding to the VisAD cursor coordinates.

Specified by:

cursorRay in interface MouseBehavior

Parameters:

cursor - array (x,y,z) of cursor location

Returns:

corresponding VisADRay

See Also:

VisADRay, DisplayRenderer.getCursor()

getScreenCoords

public int[] getScreenCoords(double[] position)

Return the screen coordinates corresponding to the VisAD coordinates.

Specified by:

getScreenCoords in interface MouseBehavior

Parameters:

position - array of VisAD coordinates

Returns:

corresponding (x, y) screen coordinates

setWakeup

void setWakeup()

Wakeup when necessary

make_translate

public double[] make_translate(double transx,
                               double transy,
                               double transz)

Create a translation matrix.

Specified by:

make_translate in interface MouseBehavior

Parameters:

transx - x translation amount

transy - y translation amount

transz - z translation amount

Returns:

new translation matrix. This can be used to translate the current matrix

See Also:

multiply_matrix(double[] a, double[] b)

make_translate

public double[] make_translate(double transx,
                               double transy)

Create a translation matrix. no translation in Z direction (useful for 2D in Java 3D.

Specified by:

make_translate in interface MouseBehavior

Parameters:

transx - x translation amount

transy - y translation amount

Returns:

new translation matrix. This can be used to translate the current matrix

See Also:

multiply_matrix(double[] a, double[] b)

multiply_matrix

public double[] multiply_matrix(double[] a,
                                double[] b)

Multiply the two matrices together.

Specified by:

multiply_matrix in interface MouseBehavior

Parameters:

a - first matrix

b - second matrix

Returns:

new resulting matrix

See Also:

static_multiply_matrix(double[], double[])

static_multiply_matrix

public static double[] static_multiply_matrix(double[] a,
                                              double[] b)

Multiply the two matrices together. Static version of multiply_matrix.

Parameters:

a - first matrix

b - second matrix

Returns:

new resulting matrix

See Also:

multiply_matrix(double[] a, double[] b)

make_matrix

public double[] make_matrix(double rotx,
                            double roty,
                            double rotz,
                            double scale,
                            double transx,
                            double transy,
                            double transz)

Make a transformation matrix to perform the given rotation, scale and translation. This function uses the fast matrix post-concatenation techniques from Graphics Gems.

Specified by:

make_matrix in interface MouseBehavior

Parameters:

rotx - x rotation

roty - y rotation

rotz - z rotation

scale - scaling factor

transx - x translation

transy - y translation

transz - z translation

Returns:

new matrix

make_matrix

public double[] make_matrix(double rotx,
                            double roty,
                            double rotz,
                            double scalex,
                            double scaley,
                            double scalez,
                            double transx,
                            double transy,
                            double transz)

Make a transformation matrix to perform the given rotation, scale and translation. This function uses the fast matrix post-concatenation techniques from Graphics Gems.

Specified by:

make_matrix in interface MouseBehavior

Parameters:

rotx - x rotation

roty - y rotation

rotz - z rotation

scalex - x scaling factor

scaley - y scaling factor

scalez - z scaling factor

transx - x translation

transy - y translation

transz - z translation

Returns:

new matrix

static_make_matrix

public static double[] static_make_matrix(double rotx,
                                          double roty,
                                          double rotz,
                                          double scale,
                                          double transx,
                                          double transy,
                                          double transz)

Make a transformation matrix to perform the given rotation, scale and translation. This function uses the fast matrix post-concatenation techniques from Graphics Gems. Static version of make_matrix.

Parameters:

rotx - x rotation

roty - y rotation

rotz - z rotation

scale - scaling factor

transx - x translation

transy - y translation

transz - z translation

Returns:

new matrix

See Also:

make_matrix(double rotx, double roty, double rotz, double scale, double transx, double transy, double transz)

static_make_matrix

public static double[] static_make_matrix(double rotx,
                                          double roty,
                                          double rotz,
                                          double scalex,
                                          double scaley,
                                          double scalez,
                                          double transx,
                                          double transy,
                                          double transz)

Make a transformation matrix to perform the given rotation, scale and translation. This function uses the fast matrix post-concatenation techniques from Graphics Gems. Static version of make_matrix.

Parameters:

rotx - x rotation

roty - y rotation

rotz - z rotation

scalex - x scaling factor

scaley - y scaling factor

scalez - z scaling factor

transx - x translation

transy - y translation

transz - z translation

Returns:

new matrix

See Also:

make_matrix(double rotx, double roty, double rotz, double scale, double transx, double transy, double transz)

instance_unmake_matrix

public void instance_unmake_matrix(double[] rot,
                                   double[] scale,
                                   double[] trans,
                                   double[] matrix)

Get the rotation, scale and translation parameters for the specified matrix. Results are not valid for non-uniform aspect (scale).

Specified by:

instance_unmake_matrix in interface MouseBehavior

Parameters:

rot - array to hold x,y,z rotation values

scale - array to hold scale value

trans - array to hold x,y,z translation values

unmake_matrix

public static void unmake_matrix(double[] rot,
                                 double[] scale,
                                 double[] trans,
                                 double[] matrix)

Get the rotation, scale and translation parameters for the specified matrix. Results are not valid for non-uniform aspect (scale). Static version of instance_unmake_matrix.

Parameters:

rot - array to hold x,y,z rotation values

scale - array to hold scale value(s). If length == 1, assumes uniform scaling.

trans - array to hold x,y,z translation values