pxmlw6n2f/Gazebo_Distributed_MPI/gazebo/math/Vector2d.hh

214 lines
6.6 KiB
C++

/*
* Copyright (C) 2012 Open Source Robotics Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUdouble WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef _GAZEBO_VECTOR2D_HH_
#define _GAZEBO_VECTOR2D_HH_
#include <ignition/math/Vector2.hh>
#include <math.h>
#include <iostream>
#include <fstream>
#include "gazebo/util/system.hh"
namespace gazebo
{
namespace math
{
/// \addtogroup gazebo_math
/// \{
/// \class Vector2d Vector2D.hh math/gzmath.hh
/// \brief Generic double x, y vector
class GZ_MATH_VISIBLE Vector2d
{
/// \brief Constructor
public: Vector2d();
/// \brief Constructor
/// \param[in] _x value along x
/// \param[in] _y value along y
public: Vector2d(const double &_x, const double &_y);
/// \brief Copy constructor
/// \param[in] _v the value
public: Vector2d(const Vector2d &_v);
/// \brief Copy constructor for ignition math
/// \param[in] _v the value
public: Vector2d(const ignition::math::Vector2d &_v);
/// \brief Destructor
public: virtual ~Vector2d();
/// \brief Calc distance to the given point
/// \param[in] _pt The point to measure to
/// \return the distance
public: double Distance(const Vector2d &_pt) const;
/// \brief Normalize the vector length
public: void Normalize();
/// \brief Set the contents of the vector
/// \param[in] _x value along x
/// \param[in] _y value along y
public: void Set(double _x, double _y);
/// \brief Return the dot product of this vector and _v
/// \param[in] _v the vector
/// \return the dot product
public: double Dot(const Vector2d &_v) const;
/// \brief Assignment operator
/// \param[in] _v a value for x and y element
/// \return this
public: Vector2d &operator =(const Vector2d &_v);
/// \brief Assignment operator for ignition math
/// \param[in] _v a value for x and y element
/// \return this
public: Vector2d &operator=(const ignition::math::Vector2d &_v);
/// \brief Assignment operator
/// \param[in] _v the value for x and y element
/// \return this
public: const Vector2d &operator =(double _v);
/// \brief Addition operator
/// \param[in] _v vector to add
/// \return sum vector
public: Vector2d operator+(const Vector2d &_v) const;
/// \brief Addition assignment operator
/// \param[in] _v the vector to add
// \return this
public: const Vector2d &operator+=(const Vector2d &_v);
/// \brief Subtraction operator
/// \param[in] _v the vector to substract
/// \return the subtracted vector
public: Vector2d operator-(const Vector2d &_v) const;
/// \brief Subtraction assignment operator
/// \param[in] _v the vector to substract
/// \return this
public: const Vector2d &operator-=(const Vector2d &_v);
/// \brief Division operator
/// \remarks this is an element wise division
/// \param[in] _v a vector
/// \result a result
public: const Vector2d operator/(const Vector2d &_v) const;
/// \brief Division operator
/// \remarks this is an element wise division
/// \param[in] _v a vector
/// \return this
public: const Vector2d &operator/=(const Vector2d &_v);
/// \brief Division operator
/// \param[in] _v the value
/// \return a vector
public: const Vector2d operator/(double _v) const;
/// \brief Division operator
/// \param[in] _v the divisor
/// \return a vector
public: const Vector2d &operator/=(double _v);
/// \brief Multiplication operators
/// \param[in] _v the vector
/// \return the result
public: const Vector2d operator*(const Vector2d &_v) const;
/// \brief Multiplication assignment operator
/// \remarks this is an element wise multiplication
/// \param[in] _v the vector
/// \return this
public: const Vector2d &operator*=(const Vector2d &_v);
/// \brief Multiplication operators
/// \param[in] _v the scaling factor
/// \return a scaled vector
public: const Vector2d operator*(double _v) const;
/// \brief Multiplication assignment operator
/// \param[in] _v the scaling factor
/// \return a scaled vector
public: const Vector2d &operator*=(double _v);
/// \brief Equal to operator
/// \param[in] _v the vector to compare to
/// \return true if the elements of the 2 vectors are equal within
/// a tolerence (1e-6)
public: bool operator ==(const Vector2d &_v) const;
/// \brief Not equal to operator
/// \return true if elements are of diffent values (tolerence 1e-6)
public: bool operator!=(const Vector2d &_v) const;
/// \brief See if a point is finite (e.g., not nan)
/// \return true if finite, false otherwise
public: bool IsFinite() const;
/// \brief Array subscript operator
/// \param[in] _index the index
/// \return the value, or 0 if _index is out of bounds
public: double operator[](unsigned int _index) const;
/// \brief Convert this vector to an ignition::math::Vector2d.
/// \return This vector as an ignition::math::Vector2d.
public: ignition::math::Vector2d Ign() const;
/// \brief x data
public: double x;
/// \brief y data
public: double y;
/// \brief Stream extraction operator
/// \param[in] _out output stream
/// \param[in] _pt Vector2d to output
/// \return The stream
public: friend std::ostream &operator<<(std::ostream &_out,
const gazebo::math::Vector2d &_pt)
{
_out << _pt.x << " " << _pt.y;
return _out;
}
/// \brief Stream extraction operator
/// \param[in] _in input stream
/// \param[in] _pt Vector3 to read values into
/// \return The stream
public: friend std::istream &operator>>(std::istream &_in,
gazebo::math::Vector2d &_pt)
{
// Skip white spaces
_in.setf(std::ios_base::skipws);
_in >> _pt.x >> _pt.y;
return _in;
}
};
/// \}
}
}
#endif