vector2d.hpp

Go to the documentation of this file.

 
#ifndef INCLUDE_SVECTOR_VECTOR2D_HPP_
#define INCLUDE_SVECTOR_VECTOR2D_HPP_
 
#include <cmath> // std::atan2, std::cos, std::sin
 
#include "simplevectors/core/vector.hpp" // svector::Vector
 
namespace svector {
// COMBINER_PY_START
 
typedef Vector<2> Vec2_; 
 
class Vector2D : public Vec2_ {
public:
  using Vec2_::Vector;
 
  Vector2D(const double x, const double y) {
    this->m_components[0] = x;
    this->m_components[1] = y;
  }
 
  Vector2D(const Vec2_ &other) {
    this->m_components[0] = other[0];
    this->m_components[1] = other[1];
  }
 
  double x() const { return this->m_components[0]; }
 
  void x(const double &newX) { this->m_components[0] = newX; }
 
  double y() const { return this->m_components[1]; }
 
  void y(const double &newY) { this->m_components[1] = newY; }
 
  double angle() const { return std::atan2(this->y(), this->x()); }
 
  Vector2D rotate(const double ang) const {
    //
    // Rotation matrix:
    //
    // | cos(ang)   -sin(ang) | |x|
    // | sin(ang)    cos(ang) | |y|
    //
 
    const double xPrime = this->x() * std::cos(ang) - this->y() * std::sin(ang);
    const double yPrime = this->x() * std::sin(ang) + this->y() * std::cos(ang);
 
    return Vector2D{xPrime, yPrime};
  }
 
  template <typename T> T componentsAs() const {
    return T{this->x(), this->y()};
  }
};
// COMBINER_PY_END
} // namespace svector
 
#endif