vmm.surface.parametric
Class DiracBelt

java.lang.Object
  vmm.core.Exhibit
      vmm.core3D.Exhibit3D
          vmm.surface.Surface
              vmm.surface.parametric.SurfaceParametric
                  vmm.surface.parametric.DiracBelt

All Implemented Interfaces:

java.util.EventListener, javax.swing.event.ChangeListener, Decorateable, Parameterizable

public class DiracBelt
extends SurfaceParametric

Defines a Dirac Belt (for the Belt-Trick) with parametric equations ((1/2)*(v - 8*u*cos(t)*(1 + 2*cos(t)^2*cos(v))*sin(t)*sin(v/2)^2 + cos(4*t)*(v - sin(v)) + sin(v)) -2.5, -cos(v)*sin(2*t) + u*cos(t)^2*sin(2*v);, u*(-cos(2*t)*sin(t)^2 + cos(t)^2*(cos(2*t)*cos(2*v) + 4*cos(v)*sin(t)^2)) + (1/2)*sin(4*t)*(-v + sin(v))))

Field Summary

Fields inherited from class vmm.surface.parametric.SurfaceParametric

COLOR_GAUSS_CURVATURE, COLOR_MEAN_CURVATURE, COLOR_TWO_SIDED_DEFAULT, COLOR_TWO_SIDED_USER, COLOR_USER, COLOR_USER_FUNCTION_HSB, COLOR_USER_FUNCTION_RGB, COLOR_WHITE, umax, umin, vmax, vmin

Fields inherited from class vmm.surface.Surface

data, uPatchCount, vPatchCount

Fields inherited from class vmm.core3D.Exhibit3D

defaultViewpoint, defaultViewUp, previousTransform3D

Fields inherited from class vmm.core.Exhibit

decorations, exhibitNeedsRedraw, isMorphing, morphingView, parameters, previousTransform

Constructor Summary

DiracBelt()

Method Summary

Animation	getCreateAnimation(View view) This method is called to "create" the Exhibit.
View	getDefaultView() Returns a default view of this exhibit, a View of type SurfaceView.
Vector3D	surfacePoint(double u, double v) The parametric equations that define the surface, given as a function from the uv-plane into R3.

Methods inherited from class vmm.surface.parametric.SurfaceParametric

addExtraXML, createData, deriv_u, deriv_v, gaussMap, getActionsForView, readExtraXML, removeView, surfaceNormal

Methods inherited from class vmm.surface.Surface

computeDrawData3D, doDraw3D, getBuildAnimation, getDefaultOrientation, setDefaultOrientation

Methods inherited from class vmm.core3D.Exhibit3D

computeDrawDataHook, doDrawHook, getDefaultTransform, getDefaultViewpoint, getDefaultViewUp, setDefaultViewpoint, setDefaultViewUp

Methods inherited from class vmm.core.Exhibit

addChangeListener, addDecoration, addParameter, addView, clearDecorations, computeDrawData, doDraw, fireExhibitChangeEvent, forceRedraw, getAdditionalAnimationsForView, getAlternativeViews, getDecorations, getDefaultBackground, getDefaultForeground, getDefaultWindow, getFramesForMorphing, getMorphingAnimation, getName, getParameterByName, getParameters, getSettingsCommandsForView, getTitle, getUseFilmstripForMorphing, getViews, parameterChanged, removeChangeListener, removeDecoration, removeParameter, render, setDefaultBackground, setDefaultForeground, setDefaultWindow, setDefaultWindow, setFramesForMorphing, setName, setUseFilmstripForMorphing, stateChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

DiracBelt

public DiracBelt()

Method Detail

getDefaultView

public View getDefaultView()

Description copied from class: Surface

Returns a default view of this exhibit, a View of type SurfaceView. (Note: If a Surface is displayed in a plain View3D, it will always appear as a wireframe.)

Overrides:

getDefaultView in class Surface

getCreateAnimation

public Animation getCreateAnimation(View view)

Description copied from class: Exhibit

This method is called to "create" the Exhibit. It should return an animation that will show the process of creating the Exhibit, whatever that means. The animation is run when the Exhibit is first shown on the screen (in the 3dxm shell program) and when the "Create" action command is invoked. If the return value is null, then there is no creation animation for this exhibit. If the return value is non-null, then it can be expected that the animation will be installed in the View's Display.

Overrides:

getCreateAnimation in class Exhibit

Parameters:

view - A View that is displaying this Exhibit. The animation, if any, that is returned by this method will be installed in the View's display. If the view is null, than a creation animation that can run independently of a view could be returned.

Returns:

A creation animation for the given View of this Exhibit. The return value can be null to indicate that no creation animation is to be run.

surfacePoint

public Vector3D surfacePoint(double u,
                             double v)

Description copied from class: SurfaceParametric

The parametric equations that define the surface, given as a function from the uv-plane into R3. The return value of this function can be null, indicating that the function is undefined for the given u and v.

Specified by:

surfacePoint in class SurfaceParametric