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138 lines
4.9 KiB
C++
138 lines
4.9 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_MODULE_GLOBEBROWSING___ANGLE___H__
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#define __OPENSPACE_MODULE_GLOBEBROWSING___ANGLE___H__
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#include <ghoul/glm.h>
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#include <memory>
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#include <math.h>
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namespace openspace {
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namespace globebrowsing {
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template <typename T>
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class Angle {
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public:
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static const T PI;
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static const T EPSILON;
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/** = 0 radians = 0 degrees = no revolution */
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static const Angle<T> ZERO;
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/** = PI/2 radians = 90 degrees = quarter of a revolution */
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static const Angle<T> QUARTER;
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/** = PI radians = 180 degrees = half a revolution */
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static const Angle<T> HALF;
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/** = 2PI radians = 360 degrees = a full revolution */
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static const Angle<T> FULL;
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static Angle<T> fromRadians(T radians);
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static Angle<T> fromDegrees(T degrees);
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static Angle<T> fromRevolutions(T revs);
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public:
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/** Copy constructor */
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Angle<T>(const Angle<T>& other);
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private:
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/** Private constructor. Use factory methods to avoid unit confusion */
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Angle<T>(T rad);
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public:
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inline T asRadians() const;
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inline T asDegrees() const;
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inline T asRevolutions() const;
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Angle<T> operator+(const Angle<T>& rhs) const;
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Angle<T> operator-(const Angle<T>& rhs) const;
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Angle<T> operator*(T rhs) const;
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Angle<T> operator/(T rhs) const;
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Angle<T> operator-() const;
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void operator+=(const Angle<T>& rhs);
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void operator-=(const Angle<T>& rhs);
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void operator*=(T rhs);
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void operator/=(T rhs);
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bool operator<(const Angle<T>& rhs) const;
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bool operator<=(const Angle<T>& rhs) const;
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bool operator>(const Angle<T>& rhs) const;
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bool operator>=(const Angle<T>& rhs) const;
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bool operator==(const Angle<T>& rhs) const;
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bool operator!=(const Angle<T>& rhs) const;
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/**
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* Normalizes the angle to the interval [0, 2pi[
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*/
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Angle<T>& normalize();
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/**
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* Normalizes the angle to the interval [center - pi, center + pi[
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*/
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Angle<T>& normalizeAround(const Angle<T>& center);
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/**
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* Clamps the angle to the interval [min, max].
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* Default arguments are [0, 2pi].
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*/
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Angle<T>& clamp(const Angle<T>& min = ZERO, const Angle<T>& max = FULL);
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Angle<T>& abs();
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/**
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* Returns a new angle normalized to the interval [0, 2pi[
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*/
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Angle<T> getNormalized() const;
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/**
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* Returns a new angle normalized to the interval [center - pi, center + pi[
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*/
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Angle<T> getNormalizedAround(const Angle<T>& center) const;
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/**
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* Returns a new angle clamped to the interval [min, max].
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* Default arguments are [0, 2pi].
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*/
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Angle<T> getClamped(const Angle<T>& min = ZERO, const Angle<T>& max = FULL) const;
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Angle<T> getAbs() const;
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private:
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T _radians;
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};
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using dAngle = Angle<double>;
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using fAngle = Angle<float>;
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} // namespace globebrowsing
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} // namespace openspace
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#include <modules/globebrowsing/geometry/angle.inl>
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#endif // __OPENSPACE_MODULE_GLOBEBROWSING___ANGLE___H__
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