split Math/Physics/Time const to new files.

2021-05-10 11:25:21 +08:00
parent 37c49f4865
commit 5de4e0822d
8 changed files with 311 additions and 263 deletions
--- a/inc/hgl/math/MathConst.h
+++ b/inc/hgl/math/MathConst.h
@@ -0,0 +1,131 @@
+#ifndef HGL_MATH_CONST_INCLUDE
+#define HGL_MATH_CONST_INCLUDE
+
+#include<hgl/type/DataType.h>
+
+namespace hgl
+{
+    constexpr double HGL_E          =2.7182818284590452353602874713526624977572470936999595749669676277240766303535475945713821785251664274;        //ŷ<><C5B7><EFBFBD><EFBFBD>(<28><>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD>)
+    constexpr double HGL_LOG2E      =1.44269504088896340736;
+    constexpr double HGL_LOG10E     =0.434294481903251827651;
+    constexpr double HGL_LN2        =0.693147180559945309417;
+    constexpr double HGL_LN10       =2.30258509299404568402;
+    constexpr double HGL_PI         =3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117068;
+    constexpr double HGL_PI_2       =1.57079632679489661923;
+    constexpr double HGL_PI_4       =0.785398163397448309616;
+    constexpr double HGL_PI_3_4     =2.356194490192344928938;
+    constexpr double HGL_1_PI       =0.318309886183790671538;
+    constexpr double HGL_2_PI       =0.636619772367581343076;
+    constexpr double HGL_2_SQRTPI   =1.12837916709551257390;
+    constexpr double HGL_SQRT2      =1.41421356237309504880168872420969807;
+    constexpr double HGL_SQRT1_2    =0.707106781186547524401;
+
+    constexpr double HGL_COS_ANG_0  =1;
+    constexpr double HGL_COS_ANG_45 =0.707106781187;
+    constexpr double HGL_COS_ANG_90 =0;
+    constexpr double HGL_COS_ANG_135=-0.707106781187;
+    constexpr double HGL_COS_ANG_180=-1;
+    constexpr double HGL_COS_ANG_225=-0.707106781187;
+    constexpr double HGL_COS_ANG_270=0;
+    constexpr double HGL_COS_ANG_315=0.707106781187;
+
+    #define HGL_DEF_ANG2RAD(ang)    constexpr double HGL_RAD_##ang=double(ang)*(HGL_PI/180.0f);
+
+    HGL_DEF_ANG2RAD(0)
+    HGL_DEF_ANG2RAD(45)
+    HGL_DEF_ANG2RAD(90)
+    HGL_DEF_ANG2RAD(135)
+    HGL_DEF_ANG2RAD(180)
+    HGL_DEF_ANG2RAD(225)
+    HGL_DEF_ANG2RAD(270)
+    HGL_DEF_ANG2RAD(315)
+    HGL_DEF_ANG2RAD(360)
+
+    #undef HGL_DEF_ANG2RAD
+    
+    /**
+     * <20>Ƕ<EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
+     */
+    inline double hgl_ang2rad(const double ang)
+    {
+        return ang*(HGL_PI/180.0f);
+    }
+
+    /**
+     * <20><><EFBFBD><EFBFBD>ת<EFBFBD>Ƕ<EFBFBD>
+     */
+    inline double hgl_rad2ang(const double rad)
+    {
+        return rad*(180.0f/HGL_PI);
+    }
+
+    /**
+     * <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡС<C8A1><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>λ<EFBFBD><CEBB>
+     * @param value Ҫ<><D2AA>ȡ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD>
+     * @param num Ҫ<><D2AA>ȡ<EFBFBD><C8A1>λ<EFBFBD><CEBB>
+     */
+    template<typename T>
+    inline T hgl_clip_float(const T value,const int num)
+    {
+        if(num<=0)
+            return int64(value);
+
+        if(value==0)return(0);
+
+        double per=pow(10,num);
+
+        return double(floor(value*per))/per;
+    }
+
+    inline float half_to_float(const uint16 &h)
+    {
+        return ((h&0x8000)<<16) | (((h&0x7c00)+0x1C000)<<13) | ((h&0x03FF)<<13);
+    }
+
+    inline uint16 float_to_half(const float &f)
+    {
+        const uint32 x = *((uint32 *)&f);
+
+        return ((x>>16)&0x8000)|((((x&0x7f800000)-0x38000000)>>13)&0x7c00)|((x>>13)&0x03ff);
+    }
+
+    /**
+     * <20><>Բ<EFBFBD><D4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+     * @param radius <20>뾶
+     */
+    inline double CircleArea(const double radius)
+    {
+        return(radius*radius*HGL_PI);
+    }
+
+    /**
+     * <20><>Բ<EFBFBD><D4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+     * @param l_radius <20><><EFBFBD>뾶
+     * @param s_radius <20>̰뾶
+     */
+    inline double ElipseArea(const double l_radius,const double s_radius)
+    {
+        return(l_radius*s_radius*HGL_PI);
+    }
+
+    /**
+     * <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+     * @param radius <20><><EFBFBD>뾶
+     */
+    inline double SphereVolume(const double radius)
+    {
+        return(radius*radius*radius*(HGL_PI*4.0f))/3.0f;
+    }
+
+    /**
+     * <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+     * @param x_radius x<>뾶
+     * @param y_radius y<>뾶
+     * @param z_radius z<>뾶
+     */
+    inline double EllipsoidVolume(const double x_radius,const double y_radius,const double z_radius)
+    {
+        return(x_radius*y_radius*z_radius*(HGL_PI*4.0f))/3.0f;
+    }
+}//namespace hgl
+#endif//HGL_MATH_CONST_INCLUDE