www.pudn.com > Billiard.rar > MathDefs.h

// MathDefs.h: interface for the CMathDefs class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_MATHDEFS_H__AACDDD61_CE32_485C_BD07_07442B0568B7__INCLUDED_) 
#define AFX_MATHDEFS_H__AACDDD61_CE32_485C_BD07_07442B0568B7__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#define M_PI        3.14159265358979323846f 
#define HALF_PI	    1.57079632679489661923f 
 
//  有关角度换算的宏定义 
#define DEGTORAD(A)	((A * M_PI) / 180.0f) 
#define RADTODEG(A)	((A * 180.0f) / M_PI) 
 
#define MAKEVECTOR(a,vx,vy,vz)	a.x = vx; a.y = vy; a.z = vz; 
 
typedef unsigned char uchar; 
 
typedef int		BOOL; 
typedef unsigned int	uint; 
typedef unsigned short  ushort; 
typedef unsigned char	byte; 
 
typedef struct 
{ 
	float u,v; 
} t2DCoord; 
 
typedef struct 
{ 
	union  
	{ 
		float x; 
		float u; 
		float r; 
	}; 
	union  
	{ 
		float y; 
		float v; 
		float g; 
	}; 
	union  
	{ 
		float z; 
		float w; 
		float b; 
	}; 
} tVector; 
 
// 矩阵定义的数据结构 
typedef struct 
{ 
	float m[16]; 
} tMatrix; 
 
// 顶点数据结构(包括顶点坐标和顶点颜色) 
typedef struct 
{ 
	float r,g,b; 
	float x,y,z; 
} tColoredVertex; 
 
typedef struct 
{ 
	float u,v; 
	float x,y,z; 
} tTexturedVertex; 
 
typedef struct 
{ 
	float u,v; 
	float r,g,b; 
	float x,y,z; 
} tTexturedColoredVertex; 
 
//  四元数结构定义 
typedef struct 
{ 
	float x,y,z,w; 
} tQuaternion; 
 
class CMathDefs   
{ 
public: 
	CMathDefs(); 
	virtual ~CMathDefs(); 
 
	void	MultVectorByMatrix(tMatrix *mat, tVector *v,tVector *result); 
	void	MultVectorByRotMatrix(tMatrix *mat, tVector *v,tVector *result); 
	double	VectorSquaredLength(tVector *v);  
	double	VectorLength(tVector *v);  
	void	NormalizeVector(tVector *v);  
	double	DotProduct(tVector *v1, tVector *v2); 
	void	CrossProduct(tVector *v1, tVector *v2, tVector *result); 
	double	VectorSquaredDistance(tVector *v1, tVector *v2); 
	void	ScaleVector(tVector *v, float scale, tVector *result); 
	void	VectorSum(tVector *v1, tVector *v2, tVector *result); 
	void	VectorDifference(tVector *v1, tVector *v2, tVector *result); 
	void	IdentityMatrix(tMatrix *mat); 
 
}; 
 
#endif // !defined(AFX_MATHDEFS_H__AACDDD61_CE32_485C_BD07_07442B0568B7__INCLUDED_)