IpeVector Class Reference
[Ipe Geometry]

Two-dimensional vector. More...

List of all members.

Public Member Functions

• IpeVector ()
• IpeVector (IpeAngle alpha)
• IpeVector (IpeScalar x, IpeScalar y)
• double SqLen () const
• double Len () const
• IpeAngle Angle () const
• IpeVector Normalized () const
• IpeVector Orthogonal () const
• double Factorize (IpeVector &unit) const
• bool operator== (const IpeVector &rhs) const
• bool operator!= (const IpeVector &rhs) const
• void operator+= (const IpeVector &rhs)
• void operator-= (const IpeVector &rhs)
• void operator *= (double rhs)
• IpeVector operator+ (const IpeVector &rhs) const
• IpeVector operator- (const IpeVector &rhs) const
• IpeVector operator * (double rhs) const

Public Attributes

• IpeScalar iX
• IpeScalar iY

Static Public Attributes

• IpeVector Zero = IpeVector(0.0, 0.0)

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Detailed Description

Two-dimensional vector.

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

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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.

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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.

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Member Data Documentation

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

The origin (zero vector).

IpeScalar IpeVector::iX

{ Vector coordinates are public.

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

• ipegeo.h
• ipegeo.cpp

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