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IpeVector Class Reference
[Ipe Geometry]

Two-dimensional vector. More...

List of all members.

Public Member Functions

Public Attributes

Static Public Attributes

Related Functions

(Note that these are not member functions.)

Detailed Description

Two-dimensional vector.

Unlike some other libraries, I don't make a difference between points and vectors.


Constructor & Destructor Documentation

IpeVector::IpeVector  )  [inline]
 

Uninitialized vector.

IpeVector::IpeVector IpeAngle  alpha  )  [explicit]
 

Construct a unit vector with this direction.

IpeVector::IpeVector IpeScalar  x,
IpeScalar  y
[inline, explicit]
 

Construct a vector.


Member Function Documentation

double IpeVector::SqLen  )  const [inline]
 

Return square of Euclidean length.

IpeAngle IpeVector::Angle  )  const
 

Return angle of the vector (with positive x-direction).

Returns zero for the zero vector.

IpeVector IpeVector::Normalized  )  const
 

Return this vector normalized (with length one).

IpeVector IpeVector::Orthogonal  )  const
 

Return this vector turned 90 degrees to the left.

double IpeVector::Factorize IpeVector unit  )  const
 

Normalizes this vector into unit and returns length. If this is the zero vector, unit is set to (1,0).

bool IpeVector::operator== const IpeVector rhs  )  const [inline]
 

Equality.

bool IpeVector::operator!= const IpeVector rhs  )  const [inline]
 

Inequality.

void IpeVector::operator+= const IpeVector rhs  )  [inline]
 

Vector-addition.

void IpeVector::operator-= const IpeVector rhs  )  [inline]
 

Vector-subtraction.

void IpeVector::operator *= double  rhs  )  [inline]
 

Multiply vector by scalar.

IpeVector IpeVector::operator+ const IpeVector rhs  )  const [inline]
 

Vector-addition.

IpeVector IpeVector::operator- const IpeVector rhs  )  const [inline]
 

Vector-subtraction.

IpeVector IpeVector::operator * double  rhs  )  const [inline]
 

Vector * scalar.


Friends And Related Function Documentation

IpeVector operator * double  lhs,
const IpeVector rhs
[related]
 

Scalar * vector.

double Dot const IpeVector lhs,
const IpeVector rhs
[related]
 

Dotproduct of two vectors.


Member Data Documentation

IpeVector IpeVector::Zero = IpeVector(0.0, 0.0) [static]
 

The origin (zero vector).

IpeScalar IpeVector::iX
 

Vector coordinates are public.


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