62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/// math.h provides certain useful mathematical functions.
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#ifndef __WRMATH_UTIL_MATH_H
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#define __WRMATH_UTIL_MATH_H
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#include <cmath>
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namespace wr {
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namespace math {
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/// Convert radians to degrees.
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/// @param rads the angle in radians
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/// @return the angle in degrees.
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float RadiansToDegreesF(float rads);
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/// Convert radians to degrees.
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/// @param rads the angle in radians
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/// @return the angle in degrees.
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double RadiansToDegreesD(double rads);
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/// Convert degrees to radians.
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/// @param degrees the angle in degrees
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/// @return the angle in radians.
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float DegreesToRadiansF(float degrees);
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/// Convert degrees to radians.
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/// @param degrees the angle in degrees
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/// @return the angle in radians.
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double DegreesToRadiansD(double degrees);
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/// Get the default epsilon value.
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/// @param epsilon The variable to store the epsilon value in.
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void DefaultEpsilon(double &epsilon);
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/// Get the default epsilon value.
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/// @param epsilon The variable to store the epsilon value in.
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void DefaultEpsilon(float &epsilon);
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/// Return whether the two values of type T are equal to within some tolerance.
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/// @tparam T The type of value
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/// @param a A value of type T used as the left-hand side of an equality check.
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/// @param b A value of type T used as the right-hand side of an equality check.
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/// @param epsilon The tolerance value.
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/// @return Whether the two values are "close enough" to be considered equal.
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template <typename T>
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static T
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WithinTolerance(T a, T b, T epsilon)
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{
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return std::abs(a - b) < epsilon;
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}
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} // namespace math
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} // namespace wr
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#endif // __WRMATH_UTIL_MATH_H
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