objects
Class EuParametrized

java.lang.Object
  |
  +--objects.EuObject
        |
        +--objects.EuParametrized

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

EuCircle, EuLine

public abstract class EuParametrized

extends EuObject

An instance of this class represents a point, represented as a cartesian pair.

Field Summary

fundamentals.EuVector

anchor An anchor point on the object, corresponds to parameter 0

Fields inherited from class objects.EuObject

infoHash, provenience, scaledown

Constructor Summary

EuParametrized()
Contructor for dummy object

EuParametrized(double x, double y)
Creates a new EuParametrized instance.

EuParametrized(fundamentals.EuVector anchor)
Creates a new EuParametrized instance.

Method Summary

abstract fundamentals.EuVector	atParameter(double t) Returns the cartesian coordinates at the parameter in the internal representation of the object.
fundamentals.EuVector	atParameter(fundamentals.EuAngle t) Return in a EuVector the coordinates of a point on the circle at a given angle.
fundamentals.EuVector	atParameter(fundamentals.EuReal t) Returns the cartesian coordinates at the parameter in the internal representation of the object
abstract double	closestParameter(double x, double y) Returns the parameter of the point on the object closest to a specified point,
double	closestParameter(fundamentals.EuVector point) Returns the parameter of the point on the object closest to a specified point,
boolean	closureContains(fundamentals.EuVector point) See if passed point lies on the object.
double	confusionDistance(objects.EuObject other) Returns the distance from this object to another under these simplifications: The distance to lines or circles is in {0,POSITIVE_INFINITY} unless this is a point.
double	distance(fundamentals.EuVector point) Describe distance method here.
boolean	interiorContains(fundamentals.EuVector point) See if passed point lies in the interior of the object.
protected abstract fundamentals.EuVector	invisibleRandomPoint(fundamentals.mouseInfo info, java.util.Random croupier) Describe invisibleRandomPoint method here.
protected boolean	matchingPair(fundamentals.EuVector a, fundamentals.EuVector b, fundamentals.EuVector c, fundamentals.EuVector d) Describe matchingPair method here.
fundamentals.EuVector	nameLocation(fundamentals.mouseInfo info) Describe nameLocation method here.
protected abstract double	nameParameter(fundamentals.mouseInfo info) Describe nameParameter method here.
java.lang.String	params() Describe params method here.
void	passArguments(fundamentals.EuArguments args) Read off parameters describing the object and add to passed EuArguments instance
fundamentals.EuVector	randomPoint(fundamentals.mouseInfo info, java.util.Random croupier) Describe randomPoint method here.

Methods inherited from class objects.EuObject

castIdentical, cloneObject, computeClip, draw, equals, getClip, isFull, isVisible, mouseVicinity, mouseVicinity, nameDisplacementAngle, overlaps, toNaturalLanguage, toPs, toString, typeName

Methods inherited from class java.lang.Object

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

Field Detail

anchor

public fundamentals.EuVector anchor

An anchor point on the object, corresponds to parameter 0

Constructor Detail

EuParametrized

public EuParametrized(fundamentals.EuVector anchor)
               throws UserException

Creates a new EuParametrized instance.

Parameters:

anchor - an EuVector value

Throws:

UserException - if an error occurs

EuParametrized

public EuParametrized(double x,
                      double y)
               throws UserException

Creates a new EuParametrized instance.

Parameters:

x - a double value

y - a double value

Throws:

UserException - if an error occurs

EuParametrized

public EuParametrized()

Contructor for dummy object

Method Detail

atParameter

public abstract fundamentals.EuVector atParameter(double t)

Returns the cartesian coordinates at the parameter in the internal representation of the object.

Parameters:

t - a double value

Returns:

a workVector containing the coordinates @param t the parameter

atParameter

public fundamentals.EuVector atParameter(fundamentals.EuReal t)

Returns the cartesian coordinates at the parameter in the internal representation of the object

Parameters:

t - the parameter

Returns:

a workVector containing the coordinates @param

atParameter

public fundamentals.EuVector atParameter(fundamentals.EuAngle t)

Return in a EuVector the coordinates of a point on the circle at a given angle.

Parameters:

t - the parameter

Returns:

the coordinates

interiorContains

public boolean interiorContains(fundamentals.EuVector point)

See if passed point lies in the interior of the object. Subclasses must take care of end points.

Specified by:

interiorContains in class EuObject

Parameters:

point - an EuVector value

Returns:

true if passed point lies in the interior of the object. @param point the point being compared to the present object.

closureContains

public boolean closureContains(fundamentals.EuVector point)

See if passed point lies on the object.

Specified by:

closureContains in class EuObject

Parameters:

point - an EuVector value

Returns:

true if passed point lies on the object. @param point the point being compared to the present object

distance

public double distance(fundamentals.EuVector point)

Describe distance method here.

Specified by:

distance in class EuObject

Parameters:

point - an EuVector value

Returns:

a double value

closestParameter

public abstract double closestParameter(double x,
                                        double y)

Returns the parameter of the point on the object closest to a specified point,

Parameters:

x - a double value

y - a double value

Returns:

the parameter @param x the first coordinate of the point @param y the second coordinate of the point

closestParameter

public double closestParameter(fundamentals.EuVector point)

Returns the parameter of the point on the object closest to a specified point,

Parameters:

point - the point

Returns:

the parameter

confusionDistance

public double confusionDistance(objects.EuObject other)

Returns the distance from this object to another under these simplifications: The distance to lines or circles is in {0,POSITIVE_INFINITY} unless this is a point. The distance to radii is POSITIVE_INFINITY unless this is a radius The distance to points is POSITIVE_INFINITY if this is a radius

Specified by:

confusionDistance in class EuObject

Parameters:

other - an EuObject value

Returns:

the parameter or zero @param point the point

matchingPair

protected boolean matchingPair(fundamentals.EuVector a,
                               fundamentals.EuVector b,
                               fundamentals.EuVector c,
                               fundamentals.EuVector d)

Describe matchingPair method here.

Parameters:

a - an EuVector value

b - an EuVector value

c - an EuVector value

d - an EuVector value

Returns:

a boolean value

params

public java.lang.String params()

Describe params method here.

Overrides:

params in class EuObject

Returns:

A technical specification of parameters associated to the object

invisibleRandomPoint

protected abstract fundamentals.EuVector invisibleRandomPoint(fundamentals.mouseInfo info,
                                                              java.util.Random croupier)
                                                       throws UserException

Describe invisibleRandomPoint method here.

Parameters:

info - a mouseInfo value

croupier - a Random value

Returns:

an EuVector value

Throws:

UserException - if an error occurs

randomPoint

public fundamentals.EuVector randomPoint(fundamentals.mouseInfo info,
                                         java.util.Random croupier)
                                  throws InternalException,
                                         UserException,
                                         DesignException

Describe randomPoint method here.

Parameters:

info - a mouseInfo value

croupier - a Random value

Returns:

an EuVector value

Throws:

InternalException - if an error occurs

UserException - if an error occurs

DesignException

passArguments

public void passArguments(fundamentals.EuArguments args)

Read off parameters describing the object and add to passed EuArguments instance

Specified by:

passArguments in class EuObject

Parameters:

args - an EuArguments value

nameParameter

protected abstract double nameParameter(fundamentals.mouseInfo info)

Describe nameParameter method here.

Parameters:

info - a mouseInfo value

Returns:

a double value

nameLocation

public fundamentals.EuVector nameLocation(fundamentals.mouseInfo info)

Describe nameLocation method here.

Specified by:

nameLocation in class EuObject

Parameters:

info - a mouseInfo value

Returns:

an EuVector value