Simple 2D transformation class. More...

Inheritance diagram for IMP::algebra::Transformation2D:

Public Member Functions
	Transformation2D ()
	constructor. An invalid transformation is built

	Transformation2D (const Rotation2D &r, const Vector2D &t=Vector2D(0.0, 0.0))
	basic constructor from a Rotation2D and translation vector

	Transformation2D (const Vector2D &t)
	Constructor for a transformation with an identity rotation.

Transformation2D	get_inverse () const
	Returns the inverse transformation.

const Rotation2D	get_rotation () const
	Returns the rotation.

Vector2D	get_transformed (const Vector2D &o) const
	Perform the transformation on an 2D vector. More...

const Vector2D	get_translation () const
	Returns the translation.

Vector2D	operator* (const Vector2D &v) const
	Perform the transformation on an 2D vector. More...

Transformation2D	operator* (const Transformation2D &tr) const
	compose two transformations More...

const Transformation2D &	operator*= (const Transformation2D &o)
	See help for operator*.

Transformation2D	operator/ (const Transformation2D &b) const

const Transformation2D &	operator/= (const Transformation2D &o)
	See help for operator/.

void	set_rotation (double angle)

void	set_translation (const Vector2D &v)
	Sets the translation.

void	show (std::ostream &out=std::cout) const

Detailed Description

See geometric primitives for more information.

Definition at line 28 of file Transformation2D.h.

Member Function Documentation

Vector2D IMP::algebra::Transformation2D::get_transformed ( const Vector2D & o ) const

Parameters

[in] o vector where the transformation is applied

Note: : The transformation is done firstly applying the rotation and then the translation

Definition at line 51 of file Transformation2D.h.

Vector2D IMP::algebra::Transformation2D::operator* ( const Vector2D & v ) const

Note: : The transformation is done firstly applying the rotation and then the translation

Definition at line 60 of file Transformation2D.h.

Transformation2D IMP::algebra::Transformation2D::operator* ( const Transformation2D & tr ) const

\ note The transformations are composed such that for any vector v (rt1*rt2)*v = rt1*(rt2*v)

Definition at line 67 of file Transformation2D.h.

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Transformation2D IMP::algebra::Transformation2D::operator/ ( const Transformation2D & b ) const

Compute the transformation d which, when composed with b, gives this one. That is a(x)== d(b(x)) for all x.

Definition at line 79 of file Transformation2D.h.

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The documentation for this class was generated from the following file: