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Merge pull request #928 from l90lpa/lMaxNorm-proposal

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L max norm proposal #928
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Christophe 2019-09-07 11:10:10 +02:00 committed by GitHub
commit bd32be3ebd
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3 changed files with 43 additions and 1 deletions
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12
glm/gtx/norm.hpp
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@ -3,6 +3,7 @@
/// ///
/// @see core (dependence) /// @see core (dependence)
/// @see gtx_quaternion (dependence) /// @see gtx_quaternion (dependence)
/// @see gtx_component_wise (dependence)
/// ///
/// @defgroup gtx_norm GLM_GTX_norm /// @defgroup gtx_norm GLM_GTX_norm
/// @ingroup gtx /// @ingroup gtx
@ -16,6 +17,7 @@
// Dependency: // Dependency:
#include "../geometric.hpp" #include "../geometric.hpp"
#include "../gtx/quaternion.hpp" #include "../gtx/quaternion.hpp"
#include "../gtx/component_wise.hpp"
#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED) #if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
# ifndef GLM_ENABLE_EXPERIMENTAL # ifndef GLM_ENABLE_EXPERIMENTAL
@ -70,6 +72,16 @@ namespace glm
template<typename T, qualifier Q> template<typename T, qualifier Q>
GLM_FUNC_DECL T lxNorm(vec<3, T, Q> const& x, unsigned int Depth); GLM_FUNC_DECL T lxNorm(vec<3, T, Q> const& x, unsigned int Depth);
//! Returns the LMax norm between x and y.
//! From GLM_GTX_norm extension.
template<typename T, qualifier Q>
GLM_FUNC_DECL T lMaxNorm(vec<3, T, Q> const& x, vec<3, T, Q> const& y);
//! Returns the LMax norm of v.
//! From GLM_GTX_norm extension.
template<typename T, qualifier Q>
GLM_FUNC_DECL T lMaxNorm(vec<3, T, Q> const& x);
/// @} /// @}
}//namespace glm }//namespace glm

12
glm/gtx/norm.inl
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@ -80,4 +80,16 @@ namespace detail
return pow(pow(abs(v.x), T(Depth)) + pow(abs(v.y), T(Depth)) + pow(abs(v.z), T(Depth)), T(1) / T(Depth)); return pow(pow(abs(v.x), T(Depth)) + pow(abs(v.y), T(Depth)) + pow(abs(v.z), T(Depth)), T(1) / T(Depth));
} }
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T lMaxNorm(vec<3, T, Q> const& a, vec<3, T, Q> const& b)
{
return compMax(abs(b - a));
}
template<typename T, qualifier Q>
GLM_FUNC_QUALIFIER T lMaxNorm(vec<3, T, Q> const& v)
{
return compMax(abs(v));
}
}//namespace glm }//namespace glm

20
test/gtx/gtx_norm.cpp
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@ -1,6 +1,24 @@
#define GLM_ENABLE_EXPERIMENTAL #define GLM_ENABLE_EXPERIMENTAL
#include <glm/gtx/norm.hpp> #include <glm/gtx/norm.hpp>
int test_lMaxNorm()
{
int Error(0);
{
float norm = glm::lMaxNorm(glm::vec3(-1, -2, -3));
Error += glm::epsilonEqual(norm, 3.f, 0.00001f) ? 0 : 1;
}
{
float norm = glm::lMaxNorm(glm::vec3(2, 3, 1));
Error += glm::epsilonEqual(norm, 3.f, 0.00001f) ? 0 : 1;
}
return Error;
}
int test_lxNorm() int test_lxNorm()
{ {
int Error(0); int Error(0);
@ -49,7 +67,6 @@ int test_lxNorm()
Error += glm::epsilonEqual(norm, 3.301927249f, 0.00001f) ? 0 : 1; Error += glm::epsilonEqual(norm, 3.301927249f, 0.00001f) ? 0 : 1;
} }
return Error; return Error;
} }
@ -57,6 +74,7 @@ int main()
{ {
int Error(0); int Error(0);
Error += test_lMaxNorm();
Error += test_lxNorm(); Error += test_lxNorm();
return Error; return Error;