Represents two doubles as a mathematical 2D vector. More...
| Public Functions | |
| QCPVector2D () | |
| QCPVector2D (double x, double y) | |
| QCPVector2D (const QPoint &point) | |
| QCPVector2D (const QPointF &point) | |
| double | x () const | 
| double | y () const | 
| double & | rx () | 
| double & | ry () | 
| void | setX (double x) | 
| void | setY (double y) | 
| double | length () const | 
| double | lengthSquared () const | 
| QPoint | toPoint () const | 
| QPointF | toPointF () const | 
| bool | isNull () const | 
| void | normalize () | 
| QCPVector2D | normalized () const | 
| QCPVector2D | perpendicular () const | 
| double | dot (const QCPVector2D &vec) const | 
| double | distanceSquaredToLine (const QCPVector2D &start, const QCPVector2D &end) const | 
| double | distanceSquaredToLine (const QLineF &line) const | 
| double | distanceToStraightLine (const QCPVector2D &base, const QCPVector2D &direction) const | 
| QCPVector2D & | operator*= (double factor) | 
| QCPVector2D & | operator/= (double divisor) | 
| QCPVector2D & | operator+= (const QCPVector2D &vector) | 
| QCPVector2D & | operator-= (const QCPVector2D &vector) | 
| Friends | |
| const QCPVector2D | operator* (double factor, const QCPVector2D &vec) | 
| const QCPVector2D | operator* (const QCPVector2D &vec, double factor) | 
| const QCPVector2D | operator/ (const QCPVector2D &vec, double divisor) | 
| const QCPVector2D | operator+ (const QCPVector2D &vec1, const QCPVector2D &vec2) | 
| const QCPVector2D | operator- (const QCPVector2D &vec1, const QCPVector2D &vec2) | 
| const QCPVector2D | operator- (const QCPVector2D &vec) | 
| Related Non-Members | |
| (Note that these are not member functions.) | |
| QDebug | operator<< (QDebug d, const QCPVector2D &vec) | 
Represents two doubles as a mathematical 2D vector.
This class acts as a replacement for QVector2D with the advantage of double precision instead of single, and some convenience methods tailored for the QCustomPlot library.
| QCPVector2D::QCPVector2D | ( | ) | 
Creates a QCPVector2D object and initializes the x and y coordinates to 0.
| QCPVector2D::QCPVector2D | ( | double | x, | 
| double | y | ||
| ) | 
Creates a QCPVector2D object and initializes the x and y coordinates with the specified values.
| QCPVector2D::QCPVector2D | ( | const QPoint & | point | ) | 
Creates a QCPVector2D object and initializes the x and y coordinates respective coordinates of the specified point.
| QCPVector2D::QCPVector2D | ( | const QPointF & | point | ) | 
Creates a QCPVector2D object and initializes the x and y coordinates respective coordinates of the specified point.
| 
 | inline | 
Sets the x coordinate of this vector to x.
| 
 | inline | 
Sets the y coordinate of this vector to y.
| 
 | inline | 
Returns the length of this vector.
| 
 | inline | 
| 
 | inline | 
Returns a QPoint which has the x and y coordinates of this vector, truncating any floating point information.
| 
 | inline | 
Returns a QPointF which has the x and y coordinates of this vector.
| 
 | inline | 
Returns whether this vector is null. A vector is null if qIsNull returns true for both x and y coordinates, i.e. if both are binary equal to 0. 
| void QCPVector2D::normalize | ( | ) | 
Normalizes this vector. After this operation, the length of the vector is equal to 1.
| QCPVector2D QCPVector2D::normalized | ( | ) | const | 
Returns a normalized version of this vector. The length of the returned vector is equal to 1.
| 
 | inline | 
Returns a vector perpendicular to this vector, with the same length.
| 
 | inline | 
Returns the dot/scalar product of this vector with the specified vector vec.
| double QCPVector2D::distanceSquaredToLine | ( | const QCPVector2D & | start, | 
| const QCPVector2D & | end | ||
| ) | const | 
This is an overloaded function.
Returns the squared shortest distance of this vector (interpreted as a point) to the finite line segment given by start and end.
| double QCPVector2D::distanceSquaredToLine | ( | const QLineF & | line | ) | const | 
This is an overloaded function.
Returns the squared shortest distance of this vector (interpreted as a point) to the finite line segment given by line.
| double QCPVector2D::distanceToStraightLine | ( | const QCPVector2D & | base, | 
| const QCPVector2D & | direction | ||
| ) | const | 
Returns the shortest distance of this vector (interpreted as a point) to the infinite straight line given by a base point and a direction vector.
| QCPVector2D & QCPVector2D::operator*= | ( | double | factor | ) | 
Scales this vector by the given factor, i.e. the x and y components are multiplied by factor.
| QCPVector2D & QCPVector2D::operator/= | ( | double | divisor | ) | 
Scales this vector by the given divisor, i.e. the x and y components are divided by divisor.
| QCPVector2D & QCPVector2D::operator+= | ( | const QCPVector2D & | vector | ) | 
Adds the given vector to this vector component-wise.
| QCPVector2D & QCPVector2D::operator-= | ( | const QCPVector2D & | vector | ) | 
subtracts the given vector from this vector component-wise.
| 
 | related | 
Prints vec in a human readable format to the qDebug output.