cylinder.h

曲面加工程序源码,用C＋＋编写的加工曲线曲面的程序

#if !defined(__cylinder_h)
#define __cylinder_h

//Difinition of cylinder class

#include "vector.h"
#include "face.h"

class cylinder:public face {
 private:
	//-------------Difinition of cylinder-------------
   //
	//-------------------------------------------------
	double Radius;
   bool isHorizontal;//981027

   double ZA(double a);
   double gradA(double a);
   double gradAA(double a);

 public:
	// Constractor and destractor
	cylinder();
	virtual ~cylinder();

	//accessor
	//void SetParameters(void);
	void SetRadius(double r );
	double GetRadius();

	double GetZ( double x, double y);
	vector GetPosition( double x, double y);

	double gradX(double x, double y);
	double gradY(double x, double y);
	double gradXX(double x, double y);
	double gradYY(double x, double y);


	// This is the normal vector of surface on the point(x,y).
	// This is toward the inside of cylinder.
	// This.length is 1.
	vector NormalVector ( double x, double y);
	vector NormalVector ( vector position);

	////GradientVector////////////////////////////////////////////
	// This is one of tangential vactors on the tangential plane.
	// This is toward direction which has the largest gradient.
	// This length is 1.
	vector GradientVector(double x, double y);
	vector GradientVector( vector position);

	////NoGradientVector///////////////////////////////////////////
	// This is one of tangential vactors on the tangential plane.
	// This is toward direction which has no gradient.
	//// This length will be 1,
	//// and this Z-coordinate will be Zero.
	vector NoGradientVector(double x,double y);
	vector NoGradientVector(vector position);


	int WriteFaceName(ofstream&);
	int WriteParameters(ofstream&);

        //980519
        void SetParameter(TStringList *str);
        void GetParameter(TStringList *str);

};	//end of cylinder class
#endif