www.pudn.com > 3dsMFCRender.rar > LSPLINE.H, change:1998-03-24,size:2422b

#ifndef _LSPLINE_H 
#define _LSPLINE_H 
 
#include <afxwin.h>		 // MFC core and standard components 
#include <afxtempl.h> 
#include <fstream.h> 
#include <math.h> 
 
// The following is used for "smart" new operations 
// with tracking during Visual C++ Debug Builds 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#endif 
 
 
/* 
 
	  This code may be freely distributed and used in programs so long 
	  as this notice appears in the code. 
 
	  By Kyle E. Lussier, (lussier@cis.ufl.edu) 
	  (C) 1996 - Silicon Softworks 
 
*/ 
 
typedef CArray<float,float>	LSplineNumbers; 
 
class LSpline { 
		LSplineNumbers	*t;		// range i=0.. (n) 
		LSplineNumbers	*y;		// range i=0.. (n) 
		LSplineNumbers  *h;    // range i=0.. (n-1) 
		LSplineNumbers	*b;    // range i=0.. (n-1) 
		LSplineNumbers  *u;		// range i=1.. (n-1) 
		LSplineNumbers	*v;		// range i=1.. (n-1) 
		LSplineNumbers	*z;		// range i=n.. 0 
 
// Polynomial Coefficients 
		LSplineNumbers A;		// range i=1.. (n) 
		LSplineNumbers B;		// range i=1.. (n) 
		LSplineNumbers C;		// range i=1.. (n) 
		LSplineNumbers D;    // range i=1.. (n) 
		unsigned lasts; 
		float	 lastt; 
 
	public: 
 
		LSpline() {lasts=0; lastt=0.0; }; 
		~LSpline() {   
//			t->RemoveAll(); 
//			delete t; 
//			y->RemoveAll(); 
//			delete y; 
		}; 
		void Build();	// Build Spline Set 
		void DisplayEquation(unsigned i); 
		void Display(); 
		void FreeMemory(); 
		void SetValues(LSplineNumbers *_t, LSplineNumbers *_y) { 
			t=_t; 
			y=_y; 
			N=_y->GetSize()-1; 
			Init(); 
		}; 
 
		float operator()(unsigned i, float x); 
		float operator()(float x); 
		BOOL IsConstantCase; 
 
	private: 
		void Init(); 
		void Step1(); 
		void Step2(); 
		void Step3(); 
		void Step4(); 
 
		unsigned N; 
		int i; 
 
}; 
 
typedef CArray<LSpline,LSpline &>	LSplines; 
 
class LSmoothMover { 
	LSplines		Set;	// Set of Splines 
	LSplineNumbers	*time;	// Time series to use 
 
public: 

	LSmoothMover(unsigned numparams, LSplineNumbers *_t) { 
		Set.SetSize(numparams); 
		time=_t; 
	}; 
 
	void SetupParamN(unsigned paramnum, LSplineNumbers *_y) { 
		Set[paramnum].SetValues(time,_y);	// set values 
		if(!Set[paramnum].IsConstantCase) 
			Set[paramnum].Build();			// build spline 
	}; 
 
	float GetValueAtTime(unsigned paramnumb, float t=0) { 
		return (Set[paramnumb])(t); 
	}; 
 
	float GetLastTime() { 
		int n=time->GetSize(); 
		if(n==0) return 0.0; 
		return (*time)[n-1]+1; 
	}; 
}; 
 
#endif