Reflection: R6 class representing a reflection

Description Active bindings Methods Examples

Description

A reflection is given by a line.

Active bindings

line

get or set the line of the reflection

Methods

Public methods


Method new()

Create a new Reflection object.

Usage
Reflection$new(line)
Arguments
line

a Line object

Returns

A new Reflection object.

Examples
l <- Line$new(c(1,1), c(1.5,1.5), FALSE, TRUE)
Reflection$new(l)

Method print()

Show instance of a reflection object.

Usage
Reflection$print(...)
Arguments
...

ignored


Method reflect()

Reflect a point.

Usage
Reflection$reflect(M)
Arguments
M

a point, Inf allowed


Method transform()

An alias of reflect.

Usage
Reflection$transform(M)
Arguments
M

a point, Inf allowed


Method reflectCircle()

Reflect a circle.

Usage
Reflection$reflectCircle(circ)
Arguments
circ

a Circle object

Returns

A Circle object.


Method transformCircle()

An alias of reflectCircle.

Usage
Reflection$transformCircle(circ)
Arguments
circ

a Circle object

Returns

A Circle object.


Method reflectLine()

Reflect a line.

Usage
Reflection$reflectLine(line)
Arguments
line

a Line object

Returns

A Line object.


Method transformLine()

An alias of reflectLine.

Usage
Reflection$transformLine(line)
Arguments
line

a Line object

Returns

A Line object.


Method getMatrix()

Augmented matrix of the reflection.

Usage
Reflection$getMatrix()
Returns

A 3x3 matrix.

Examples
R <- Reflection$new(Line$new(c(2,2), c(4,5)))
P <- c(1,5)
R$reflect(P)
R$getMatrix() %*% c(P,1)

Method asAffine()

Convert the reference reflection to an Affine object.

Usage
Reflection$asAffine()

Method clone()

The objects of this class are cloneable with this method.

Usage
Reflection$clone(deep = FALSE)
Arguments
deep

Whether to make a deep clone.

Examples

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
## ------------------------------------------------
## Method `Reflection$new`
## ------------------------------------------------

l <- Line$new(c(1,1), c(1.5,1.5), FALSE, TRUE)
Reflection$new(l)

## ------------------------------------------------
## Method `Reflection$getMatrix`
## ------------------------------------------------

R <- Reflection$new(Line$new(c(2,2), c(4,5)))
P <- c(1,5)
R$reflect(P)
R$getMatrix() %*% c(P,1)

PlaneGeometry documentation built on Aug. 7, 2020, 1:06 a.m.