IMP  2.2.1
The Integrative Modeling Platform
IMP::algebra::Transformation2D Class Reference

Simple 2D transformation class. More...

#include <IMP/algebra/Transformation2D.h>

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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 Transformation2Doperator*= (const Transformation2D &o)
 See help for operator*.
 
Transformation2D operator/ (const Transformation2D &b) const
 
const Transformation2Doperator/= (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]ovector 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: