template<typename T>
class lemon::dim2::Point< T >
A simple two dimensional vector (plain vector) implementation with the usual vector operations.
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| Point () |
| | Default constructor.
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| Point (T a, T b) |
| | Construct an instance from coordinates.
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| int | size () const |
| | Returns the dimension of the vector (i.e. returns 2).
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| T & | operator[] (int idx) |
| | Subscripting operator.
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| const T & | operator[] (int idx) const |
| | Const subscripting operator.
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template<class TT > |
| | Point (const Point< TT > &p) |
| | Conversion constructor.
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T | normSquare () const |
| | Give back the square of the norm of the vector.
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Point< T > & | operator+= (const Point< T > &u) |
| | Increment the left hand side by u.
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Point< T > & | operator-= (const Point< T > &u) |
| | Decrement the left hand side by u.
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Point< T > & | operator*= (const T &u) |
| | Multiply the left hand side with a scalar.
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Point< T > & | operator/= (const T &u) |
| | Divide the left hand side by a scalar.
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T | operator* (const Point< T > &u) const |
| | Return the scalar product of two vectors.
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Point< T > | operator+ (const Point< T > &u) const |
| | Return the sum of two vectors.
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Point< T > | operator- () const |
| | Return the negative of the vector.
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Point< T > | operator- (const Point< T > &u) const |
| | Return the difference of two vectors.
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Point< T > | operator* (const T &u) const |
| | Return a vector multiplied by a scalar.
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Point< T > | operator/ (const T &u) const |
| | Return a vector divided by a scalar.
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bool | operator== (const Point< T > &u) const |
| | Test equality.
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bool | operator!= (Point u) const |
| | Test inequality.
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(Note that these are not member symbols.)
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| template<typename T > |
| Point< T > | makePoint (const T &x, const T &y) |
| | Return a Point.
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| template<typename T > |
| Point< T > | operator* (const T &u, const Point< T > &x) |
| | Return a vector multiplied by a scalar.
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| template<typename T > |
| std::istream & | operator>> (std::istream &is, Point< T > &z) |
| | Read a plain vector from a stream.
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| template<typename T > |
| std::ostream & | operator<< (std::ostream &os, const Point< T > &z) |
| | Write a plain vector to a stream.
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| template<typename T > |
| Point< T > | rot90 (const Point< T > &z) |
| | Rotate by 90 degrees.
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| template<typename T > |
| Point< T > | rot180 (const Point< T > &z) |
| | Rotate by 180 degrees.
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| template<typename T > |
| Point< T > | rot270 (const Point< T > &z) |
| | Rotate by 270 degrees.
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