Algebraic operations on two-dimensional vectors (dot product, vector length and angles, ...) More...
Go to the source code of this file.
Functions | |
| template<typename T > | |
| T | thor::length (const sf::Vector2< T > &vector) |
| Returns the length of the 2D vector. | |
| template<typename T > | |
| T | thor::squaredLength (const sf::Vector2< T > &vector) |
| Returns the square of vector's length. More... | |
| template<typename T > | |
| void | thor::setLength (sf::Vector2< T > &vector, T newLength) |
| Adapts vector so that its length is |newLength| after this operation. More... | |
| template<typename T > | |
| sf::Vector2< T > | thor::unitVector (const sf::Vector2< T > &vector) |
| Returns a vector with same direction as the argument, but with length 1. More... | |
| template<typename T > | |
| T | thor::polarAngle (const sf::Vector2< T > &vector) |
| Returns the polar angle. More... | |
| template<typename T > | |
| void | thor::setPolarAngle (sf::Vector2< T > &vector, T newAngle) |
| Sets the polar angle of the specified vector. More... | |
| template<typename T > | |
| void | thor::rotate (sf::Vector2< T > &vector, T angle) |
| Rotates the vector by the given angle (in degrees). More... | |
| template<typename T > | |
| sf::Vector2< T > | thor::rotatedVector (const sf::Vector2< T > &vector, T angle) |
| Returns a copy of the vector, rotated by angle degrees. More... | |
| template<typename T > | |
| sf::Vector2< T > | thor::perpendicularVector (const sf::Vector2< T > &vector) |
| Returns a perpendicular vector. More... | |
| template<typename T > | |
| T | thor::signedAngle (const sf::Vector2< T > &lhs, const sf::Vector2< T > &rhs) |
| Computes the signed angle from lhs to rhs. More... | |
| template<typename T > | |
| T | thor::dotProduct (const sf::Vector2< T > &lhs, const sf::Vector2< T > &rhs) |
| Computes the dot product of two 2D vectors. | |
| template<typename T > | |
| T | thor::crossProduct (const sf::Vector2< T > &lhs, const sf::Vector2< T > &rhs) |
| Computes the cross product of two 2D vectors (Z component only). More... | |
| template<typename T > | |
| sf::Vector2< T > | thor::cwiseProduct (const sf::Vector2< T > &lhs, const sf::Vector2< T > &rhs) |
| Returns the component-wise product of lhs and rhs. More... | |
| template<typename T > | |
| sf::Vector2< T > | thor::cwiseQuotient (const sf::Vector2< T > &lhs, const sf::Vector2< T > &rhs) |
| Returns the component-wise quotient of lhs and rhs. More... | |
| template<typename T > | |
| sf::Vector2< T > | thor::projectedVector (const sf::Vector2< T > &vector, const sf::Vector2< T > &axis) |
| Returns the projection of vector onto axis. More... | |
Algebraic operations on two-dimensional vectors (dot product, vector length and angles, ...)
Here is an overview over the functionality:
| Operation | Translation | Scale | Rotation |
|---|---|---|---|
| Get | v | length(v) | polarAngle(v) |
| Set, absolute | v = w | setLength(v,l) | setPolarAngle(v,a) |
| Set, relative | v += w | v *= l | rotate(v,a) |
| Copy, relative | v + w | v * l | rotatedVector(v,a) |
Other functions:
| dotProduct(v,w) | unitVector(v) | squaredLength(v) |
| crossProduct(v,w) | perpendicularVector(v) | signedAngle(v,w) |
| cwiseProduct(v,w) | cwiseQuotient(v,w) | projectedVector(v,w) |