de.jreality.tutorial.gui

Class SliderExample.HelicoidCatenoid

java.lang.Object

de.jreality.tutorial.gui.SliderExample.HelicoidCatenoid

All Implemented Interfaces:

ParametricSurfaceFactory.Immersion

Enclosing class:

SliderExample

public static class SliderExample.HelicoidCatenoid
extends Object
implements ParametricSurfaceFactory.Immersion

This class implements the associated family of the Helicoid and Catenoid x = cos alpha sinh v sin u + sin alpha cosh v cos u y = -cos alpha sinh v cos u + sin alpha cosh v sin u z = u cos alpha + v sin alpha u \in [-Pi,Pi[ v \in \R alpha = 0 helicoid alpha = Pi/2 catenoid

Constructor Summary

Constructors

Constructor and Description
HelicoidCatenoid()

Method Summary

Modifier and Type	Method and Description
void	evaluate(double u, double v, double[] xyz, int index) The implementation of the formula.
double	getAlpha()
int	getDimensionOfAmbientSpace() The dimension of the target space.
boolean	isImmutable() Mutable immersions are always recalculated when the update method is called; immutable immersions are only recalculated when the parameter domain changes.
void	setAlpha(double alpha)

Methods inherited from class java.lang.Object

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

Constructor Detail

HelicoidCatenoid

public HelicoidCatenoid()

Method Detail

getAlpha

public double getAlpha()

setAlpha

public void setAlpha(double alpha)

evaluate

public void evaluate(double u,
                     double v,
                     double[] xyz,
                     int index)

Description copied from interface: ParametricSurfaceFactory.Immersion

The implementation of the formula. If in mathematical notation (f1(u,v), ..., fn(u,v)) is your Rⁿ valued map, where n is the dimension of the ambient space. Then your implementation of evaluate should read

                xyz[3*index]=f1(u,v);
                xyz[3*index+1]=f2(u,v);
                   ...
                xyz[3*index+n-1]=fn(u,v);
  

Specified by:

evaluate in interface ParametricSurfaceFactory.Immersion

Parameters:

u - coordinate of the requested value

v - coordinate of the requested value

xyz - an array to put the result of the evaluation into

index - at which to put the result into xyz.

getDimensionOfAmbientSpace

public int getDimensionOfAmbientSpace()

Description copied from interface: ParametricSurfaceFactory.Immersion

The dimension of the target space.

Specified by:

getDimensionOfAmbientSpace in interface ParametricSurfaceFactory.Immersion

isImmutable

public boolean isImmutable()

Description copied from interface: ParametricSurfaceFactory.Immersion

Mutable immersions are always recalculated when the update method is called; immutable immersions are only recalculated when the parameter domain changes.

Specified by:

isImmutable in interface ParametricSurfaceFactory.Immersion