vgp.surface.common
Class PgSurface_CatenoidHelicoid

java.lang.Object
  jv.object.PsObject
      jvx.surface.PgDomainDescr
          vgp.surface.common.PgSurfaceDescr
              vgp.surface.common.PgSurface_CatenoidHelicoid

All Implemented Interfaces:

java.lang.Cloneable, PsTimeListenerIf, PsUpdateIf, java.io.Serializable

public class PgSurface_CatenoidHelicoid

extends PgSurfaceDescr

implements PsTimeListenerIf

Parametrized surface given by method, or interactively, by function expressions. If the functions of a surface are specified in PgSurfaceDescr#calc_f method and, later, interactively edited, then the interactive expressions are further used. This is important for evaluation of higher order differentials since they are only approximated using finite differences in the later case.

See Also:

Serialized Form

Field Summary

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_LABEL_PANEL, HAS_MATERIAL_PANEL, HAS_TEXTURE_PANEL, HAS_VECTOR_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_FOCUSSED, IS_PICKED, IS_SELECTED, IS_USED, NUM_TAGS

Constructor Summary

PgSurface_CatenoidHelicoid()

Method Summary

boolean	calc_f(PdVector fun, double u, double v) Internal function called by eval(..) to compute function value.
PsAnimation	getAnimation() Get the animation object of the project which handles the projects animations.
boolean	hasAnimation() Check whether this project is registered as listener of an animation object.
void	init() Initialize and reset data structure and all instance variables.
boolean	isUPeriodic() Determine if surface is periodic in u-direction.
void	setAnimation(PsAnimation anAnimation) Assign the animation object where this listener is registered.
boolean	setTime(PsTimeEvent timeEvent) Animation updates the dynamic object through this method whenever time has changed.
boolean	update(java.lang.Object event) Catch events from function strings.

Methods inherited from class vgp.surface.common.PgSurfaceDescr

addParameter, christoffel, clone, copy, ddf_dUdU, ddf_dUdV, ddf_dVdV, df_dU, df_dV, df, dN_dU, dN_dV, dN, eval, firstFundamental, getAmbientProjection, getAmbientSpace, getDimOfSurface, getFunction, getListOfScenes, getListOfSurfaces, getParameter, getParameters, isVPeriodic, normal, secondFundamental, setAmbientProjection, setAmbientSpace, setDimOfSurface, setFunction, useFunctionExpression, useFunctionExpression, weingarten

Methods inherited from class jvx.surface.PgDomainDescr

eval, getNumULines, getNumVLines, getUMax, getUMin, getVMax, getVMin, isShowingULine, isShowingVLine, setDiscr, setDiscrBounds, setMaxSize, setNumULines, setNumVLines, setSize, setUMax, setUMin, setVMax, setVMin, showULine, showVLine, toString

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, getFather, getInfoPanel, getInspector, getName, getNumObjects, getSymbol, hasInspector, hasTag, hasUpdateListener, instanceOf, instanceOf, newInspector, newInspector, removeInspector, removeInspector, removeUpdateListener, setName, setParent, setSymbol, setTag, updatePanels

Methods inherited from class java.lang.Object

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

Methods inherited from interface jv.anim.PsTimeListenerIf

getName

Constructor Detail

PgSurface_CatenoidHelicoid

public PgSurface_CatenoidHelicoid()

Method Detail

isUPeriodic

public boolean isUPeriodic()

Description copied from class: PgSurfaceDescr

Determine if surface is periodic in u-direction. This method returns false, but will be overwritten by surface which are periodic.

Overrides:

isUPeriodic in class PgSurfaceDescr

init

public void init()

Description copied from class: PgDomainDescr

Initialize and reset data structure and all instance variables.

Overrides:

init in class PgSurfaceDescr

update

public boolean update(java.lang.Object event)

Description copied from class: PgSurfaceDescr

Catch events from function strings. Update the class whenever a child has changed. Method is usually invoked from the children.

Specified by:

update in interface PsUpdateIf

Overrides:

update in class PgSurfaceDescr

calc_f

public boolean calc_f(PdVector fun,
                      double u,
                      double v)

Description copied from class: PgSurfaceDescr

Internal function called by eval(..) to compute function value. It is ensured by the calling eval() function that argument vector exists and has correct size.

If function set flag m_bUseFunctionExpression==false then we use this indicator that function has not been overridden and use the string functions.

This function must be overwritten by subclasses to compute surfaces, for example, if a subclass wants to perform the function calculation itself.

Overrides:

calc_f in class PgSurfaceDescr

Parameters:

fun - vector where to place the function values.

Returns:

true if function has been overridden and evaluated successfully.

See Also:

PgSurfaceDescr.eval(PdVector, double, double)

setTime

public boolean setTime(PsTimeEvent timeEvent)

Description copied from interface: PsTimeListenerIf

Animation updates the dynamic object through this method whenever time has changed.

Specified by:

setTime in interface PsTimeListenerIf

getAnimation

public PsAnimation getAnimation()

Get the animation object of the project which handles the projects animations. This listener may only have a single animation object which is assigned by the animation object when this listener is registered using setAnimation(PsAnimation).

Specified by:

getAnimation in interface PsTimeListenerIf

See Also:

hasAnimation(), setAnimation(PsAnimation)

hasAnimation

public boolean hasAnimation()

Check whether this project is registered as listener of an animation object.

Specified by:

hasAnimation in interface PsTimeListenerIf

See Also:

getAnimation(), setAnimation(PsAnimation)

setAnimation

public void setAnimation(PsAnimation anAnimation)

Assign the animation object where this listener is registered. This method is invoked by the animation object during registration of this listener, and usually is not required to be called by a user. If this listener has an assigned animation object, then its animation panel may be shown to change the current time of this listener.

Only one animation object may be assigned to this listener. Subsequent assignments will replace the previous assignment.

Specified by:

setAnimation in interface PsTimeListenerIf

See Also:

getAnimation(), hasAnimation()