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138 lines
3.6 KiB
C++
138 lines
3.6 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_VECTORD_H
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#define NL_VECTORD_H
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#include <cmath>
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#include "vector.h"
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namespace NLMISC
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{
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// ======================================================================================================
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/**
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* A 3D vector of double.
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* \author Lionel Berenguier
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* \author Nevrax France
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* \date 2000
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*/
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class CVectorD
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{
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public: // Attributes.
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double x,y,z;
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public: // const.
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/// Null vector (0,0,0).
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static const CVectorD Null;
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/// I vector (1,0,0).
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static const CVectorD I;
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/// J vector (0,1,0).
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static const CVectorD J;
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/// K vector (0,0,1).
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static const CVectorD K;
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public: // Methods.
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/// @name Object.
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//@{
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/// Constructor which does nothing.
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CVectorD() {}
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/// Constructor .
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CVectorD(double _x, double _y, double _z) : x(_x), y(_y), z(_z) {}
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/// Constructor with a CVector.
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CVectorD(const CVector &v) : x(v.x), y(v.y), z(v.z) {}
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/// Copy Constructor.
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CVectorD(const CVectorD &v) : x(v.x), y(v.y), z(v.z) {}
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//@}
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/// @name Base Maths.
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//@{
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CVectorD &operator+=(const CVectorD &v);
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CVectorD &operator-=(const CVectorD &v);
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CVectorD &operator*=(double f);
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CVectorD &operator/=(double f);
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CVectorD operator+(const CVectorD &v) const;
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CVectorD operator-(const CVectorD &v) const;
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CVectorD operator*(double f) const;
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CVectorD operator/(double f) const;
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CVectorD operator-() const;
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//@}
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/// @name Advanced Maths.
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//@{
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/// Dot product.
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double operator*(const CVectorD &v) const;
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/** Cross product.
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* compute the cross product *this ^ v.
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*/
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CVectorD operator^(const CVectorD &v) const;
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/// Return the norm of the vector.
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double norm() const;
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/// Return the square of the norm of the vector.
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double sqrnorm() const;
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/// Normalize the vector.
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void normalize();
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/// Return the vector normalized.
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CVectorD normed() const;
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//@}
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/// @name Misc.
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//@{
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void set(double _x, double _y, double _z);
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bool operator==(const CVectorD &v) const;
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bool operator!=(const CVectorD &v) const;
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bool isNull() const;
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/**
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* Setup the vector with spheric coordinates.
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* sphericToCartesian(1,0,0) build the I vector ((1,0,0)).
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* the formula is: \n
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* x= r*cos(theta)*cos(phi) \n
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* y= r*sin(theta)*cos(phi) \n
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* z= r*sin(phi) \n
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* \sa cartesianToSpheric()
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*/
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void sphericToCartesian(double r, double theta,double phi);
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/**
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* Get the sphreic coordinates of the vector.
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* See sphericToCartesian() to know coordinates conventions.
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* \sa sphericToCartesian()
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*/
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void cartesianToSpheric(double &r, double &theta,double &phi) const;
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void serial(IStream &f);
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CVectorD &operator=(const CVector &v);
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operator CVector() const;
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// copy content into a CVector
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void copyTo(CVector &dest) const;
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// conersion to a CVector
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CVector asVector() const;
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//@}
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// friends.
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friend CVectorD operator*(double f, const CVectorD &v0);
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};
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}
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#include "vectord_inline.h"
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#endif // NL_VECTOR_H
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/* End of vector.h */
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