pxmlw6n2f/Gazebo_Distributed_TCP/gazebo/math/Vector3.hh

348 lines
12 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,
* WITHOUT 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_VECTOR3_HH_
#define _GAZEBO_VECTOR3_HH_
#include <math.h>
#include <iostream>
#include <fstream>
#include <ignition/math/Vector3.hh>
#include "gazebo/math/Helpers.hh"
#include "gazebo/util/system.hh"
namespace gazebo
{
namespace math
{
/// \addtogroup gazebo_math
/// \{
/// \class Vector3 Vector3.hh math/gzmath.hh
/// \brief The Vector3 class represents the generic vector containing 3
/// elements. Since it's commonly used to keep coordinate system
/// related information, its elements are labeled by x, y, z.
class GZ_MATH_VISIBLE Vector3
{
/// \brief math::Vector3(0, 0, 0)
public: static const Vector3 Zero;
/// \brief math::Vector3(1, 1, 1)
public: static const Vector3 One;
/// \brief math::Vector3(1, 0, 0)
public: static const Vector3 UnitX;
/// \brief math::Vector3(0, 1, 0)
public: static const Vector3 UnitY;
/// \brief math::Vector3(0, 0, 1)
public: static const Vector3 UnitZ;
/// \brief Constructor
public: Vector3();
/// \brief Constructor
/// \param[in] _x value along x
/// \param[in] _y value along y
/// \param[in] _z value along z
public: Vector3(const double &_x, const double &_y, const double &_z);
/// \brief Ignition math copy constructor
/// \param[in] _v a vector
public: Vector3(const ignition::math::Vector3d &_v);
/// \brief Copy constructor
/// \param[in] _v a vector
public: Vector3(const Vector3 &_v);
/// \brief Destructor
public: virtual ~Vector3();
/// \brief Return the sum of the values
/// \return the sum
public: double GetSum() const;
/// \brief Calc distance to the given point
/// \param[in] _pt the point
/// \return the distance
public: double Distance(const Vector3 &_pt) const;
/// \brief Calc distance to the given point
/// \param[in] _x value along x
/// \param[in] _y value along y
/// \param[in] _z value along z
/// \return the distance
public: double Distance(double _x, double _y, double _z) const;
/// \brief Returns the length (magnitude) of the vector
/// \ return the length
public: double GetLength() const;
/// \brief Return the square of the length (magnitude) of the vector
/// \return the squared length
public: double GetSquaredLength() const;
/// \brief Normalize the vector length
/// \return unit length vector
public: Vector3 Normalize();
/// \brief Round to near whole number, return the result.
/// \return the result
public: Vector3 Round();
/// \brief Get a rounded version of this vector
/// \return a rounded vector
public: Vector3 GetRounded() const;
/// \brief Set the contents of the vector
/// \param[in] _x value along x
/// \param[in] _y value along y
/// \param[in] _z value aling z
public: inline void Set(double _x = 0, double _y = 0 , double _z = 0)
{
this->x = _x;
this->y = _y;
this->z = _z;
}
/// \brief Return the cross product of this vector and pt
/// \return the product
public: Vector3 Cross(const Vector3 &_pt) const;
/// \brief Return the dot product of this vector and pt
/// \return the product
public: double Dot(const Vector3 &_pt) const;
/// \brief Get the absolute value of the vector
/// \return a vector with positive elements
public: Vector3 GetAbs() const;
/// \brief Return a vector that is perpendicular to this one.
/// \return an orthogonal vector
public: Vector3 GetPerpendicular() const;
/// \brief Get a normal vector to a triangle
/// \param[in] _v1 first vertex of the triangle
/// \param[in] _v2 second vertex
/// \param[in] _v3 third vertex
/// \return the normal
public: static Vector3 GetNormal(const Vector3 &_v1, const Vector3 &_v2,
const Vector3 &_v3);
/// \brief Get distance to a line
/// \param[in] _pt1 first point on the line
/// \param[in] _pt2 second point on the line
/// \return the minimum distance from this point to the line
public: double GetDistToLine(const Vector3 &_pt1, const Vector3 &_pt2);
/// \brief Set this vector's components to the maximum of itself and the
/// passed in vector
/// \param[in] _v the maximum clamping vector
public: void SetToMax(const Vector3 &_v);
/// \brief Set this vector's components to the minimum of itself and the
/// passed in vector
/// \param[in] _v the minimum clamping vector
public: void SetToMin(const Vector3 &_v);
/// \brief Get the maximum value in the vector
/// \return the maximum element
public: double GetMax() const;
/// \brief Get the minimum value in the vector
/// \return the minimum element
public: double GetMin() const;
/// \brief Convert this vector to an ignition::math::Vector3d.
/// \return This vector as an ignition::math::Vector3d.
public: ignition::math::Vector3d Ign() const;
/// \brief Assignment operator for ignition math
/// \param[in] _v a new value
/// \return this
public: Vector3 &operator=(const ignition::math::Vector3d &_v);
/// \brief Assignment operator
/// \param[in] _v a new value
/// \return The new vector
public: Vector3 &operator =(const Vector3 &_v);
/// \brief Assignment operator
/// \param[in] _value assigned to all elements
/// \return this
public: Vector3 &operator =(double _value);
/// \brief Addition operator
/// \param[in] _v vector to add
/// \return the sum vector
public: Vector3 operator+(const Vector3 &_v) const;
/// \brief Addition assignment operator
/// \param[in] _v vector to add
public: const Vector3 &operator+=(const Vector3 &_v);
/// \brief Negation operator
/// \return negative of this vector
public: inline Vector3 operator-() const
{
return Vector3(-this->x, -this->y, -this->z);
}
/// \brief Subtraction operators
/// \param[in] _pt a vector to substract
/// \return a vector
public: inline Vector3 operator-(const Vector3 &_pt) const
{
return Vector3(this->x - _pt.x,
this->y - _pt.y,
this->z - _pt.z);
}
/// \brief Subtraction operators
/// \param[in] _pt subtrahend
public: const Vector3 &operator-=(const Vector3 &_pt);
/// \brief Division operator
/// \brief[in] _pt the vector divisor
/// \remarks this is an element wise division
/// \return a vector
public: const Vector3 operator/(const Vector3 &_pt) const;
/// \brief Division assignment operator
/// \brief[in] _pt the vector divisor
/// \remarks this is an element wise division
/// \return a vector
public: const Vector3 &operator/=(const Vector3 &_pt);
/// \brief Division operator
/// \remarks this is an element wise division
/// \return a vector
public: const Vector3 operator/(double _v) const;
/// \brief Division operator
/// \remarks this is an element wise division
/// \return this
public: const Vector3 &operator/=(double _v);
/// \brief Multiplication operator
/// \remarks this is an element wise multiplication, not a cross product
/// \param[in] _v
public: Vector3 operator*(const Vector3 &_p) const;
/// \brief Multiplication operators
/// \remarks this is an element wise multiplication, not a cross product
/// \param[in] _v a vector
/// \return this
public: const Vector3 &operator*=(const Vector3 &_v);
/// \brief Multiplication operators
/// \param[in] _s the scaling factor
/// \param[in] _v input vector
/// \return a scaled vector
public: friend inline Vector3 operator*(double _s,
const Vector3 &_v)
{ return Vector3(_v.x * _s, _v.y * _s, _v.z * _s); }
/// \brief Multiplication operators
/// \param[in] _v the scaling factor
/// \return a scaled vector
public: Vector3 operator*(double _v) const;
/// \brief Multiplication operator
/// \param[in] _v scaling factor
/// \return this
public: const Vector3 &operator*=(double _v);
/// \brief Equal to operator
/// \param[in] _pt The vector to compare against
/// \return true if each component is equal withing a
/// default tolerence (1e-6), false otherwise
public: bool operator ==(const Vector3 &_pt) const;
/// \brief Not equal to operator
/// \param[in] _v The vector to compare against
/// \return true if each component is equal withing a
/// default tolerence (1e-6), false otherwise
public: bool operator!=(const Vector3 &_v) const;
/// \brief See if a point is finite (e.g., not nan)
public: bool IsFinite() const;
/// \brief Corrects any nan values
public: inline void Correct()
{
if (!std::isfinite(this->x))
this->x = 0;
if (!std::isfinite(this->y))
this->y = 0;
if (!std::isfinite(this->z))
this->z = 0;
}
/// \brief [] operator
public: double operator[](unsigned int index) const;
/// \brief Round all values to _precision decimal places
/// \param[in] _precision the decimal places
public: void Round(int _precision);
/// \brief Equality test
/// \remarks This is equivalent to the == operator
/// \param[in] _v the other vector
/// \return true if the 2 vectors have the same values, false otherwise
public: bool Equal(const Vector3 &_v) const;
/// \brief X location
public: double x;
/// \brief Y location
public: double y;
/// \brief Z location
public: double z;
/// \brief Stream insertion operator
/// \param _out output stream
/// \param _pt Vector3 to output
/// \return the stream
public: friend std::ostream &operator<<(std::ostream &_out,
const gazebo::math::Vector3 &_pt)
{
_out << precision(_pt.x, 6) << " " << precision(_pt.y, 6) << " "
<< precision(_pt.z, 6);
return _out;
}
/// \brief Stream extraction operator
/// \param _in input stream
/// \param _pt vector3 to read values into
/// \return the stream
public: friend std::istream &operator>>(std::istream &_in,
gazebo::math::Vector3 &_pt)
{
// Skip white spaces
_in.setf(std::ios_base::skipws);
_in >> _pt.x >> _pt.y >> _pt.z;
return _in;
}
};
/// \}
}
}
#endif