visad

Interface MouseBehavior

All Known Implementing Classes:

MouseBehaviorJ2D, MouseBehaviorJ3D, WandBehaviorJ3D

public interface MouseBehavior

MouseBehavior is the VisAD interface for mouse behaviors for Java3D and Java2D

Method Summary

Modifier and Type	Method and Description
VisADRay	cursorRay(double[] cursor) Return the VisAD ray corresponding to the VisAD cursor coordinates.
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	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.

Method Detail

getMouseHelper

MouseHelper getMouseHelper()

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

Returns:

MouseHelper being used.

cursorRay

VisADRay cursorRay(double[] cursor)

Return the VisAD ray corresponding to the VisAD cursor coordinates.

Parameters:

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

Returns:

corresponding VisADRay

See Also:

VisADRay, DisplayRenderer.getCursor()

findRay

VisADRay findRay(int screen_x,
                 int screen_y)

Return the VisAD ray corresponding to the component coordinates.

Parameters:

screen_x - x coordinate of the component

screen_y - y coordinate of the component

Returns:

corresponding VisADRay

See Also:

VisADRay, LocalDisplay.getComponent()

getScreenCoords

int[] getScreenCoords(double[] position)

Return the screen coordinates corresponding to the VisAD coordinates.

Parameters:

position - array of VisAD coordinates

Returns:

corresponding (x, y) screen coordinates

multiply_matrix

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

Multiply the two matrices together.

Parameters:

a - first matrix

b - second matrix

Returns:

new resulting matrix

make_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.

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

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.

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

instance_unmake_matrix

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).

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

make_translate

double[] make_translate(double transx,
                        double transy)

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

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)

make_translate

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

Create a translation matrix.

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)