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A Normal / Exponential Random Generator and Histogram Class

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2 Dec 20024 min read 276.7K   8.1K   55  
A fast random generator with normal or exponential distribution + a histogram class
In this article, you will find a fast generator for Random Variable, namely normal and exponential distributions. It is based on George Marsaglia's and Wai Wan Tsang's work.
#if !defined(AFX_PGLMAPVECTORPROPPAGE_H__74858A02_426C_4A5D_8BD0_FD1DE5E8C168__INCLUDED_)
#define AFX_PGLMAPVECTORPROPPAGE_H__74858A02_426C_4A5D_8BD0_FD1DE5E8C168__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// PGLMapVectorPropPage.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// CPGLMapVectorPropPage dialog

/*! \brief Vector field property page.

\ingroup PGLPropPageGroup
*/
class CPGLMapVectorPropPage : public CPropertyPage
{
	DECLARE_DYNCREATE(CPGLMapVectorPropPage)

// Construction
public:
	CPGLMapVectorPropPage(CPGLMapVector* pMapVector = NULL);
	~CPGLMapVectorPropPage();

	void SetMapVector(CPGLMapVector* pMapVector)
	{	m_pMapVector = pMapVector;};
// Dialog Data
	//{{AFX_DATA(CPGLMapVectorPropPage)
	enum { IDD = IDD_PGL_PROPPAGE_MAP_VECTORFIELD };
	double	m_dLineWidth;
	//}}AFX_DATA


// Overrides
	// ClassWizard generate virtual function overrides
	//{{AFX_VIRTUAL(CPGLMapVectorPropPage)
	public:
	virtual BOOL OnKillActive();
	virtual BOOL OnSetActive();
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	CPGLMapVector* m_pMapVector;
	// Generated message map functions
	//{{AFX_MSG(CPGLMapVectorPropPage)
		// NOTE: the ClassWizard will add member functions here
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()

};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_PGLMAPVECTORPROPPAGE_H__74858A02_426C_4A5D_8BD0_FD1DE5E8C168__INCLUDED_)

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Written By
Engineer
United States United States
Jonathan de Halleux is Civil Engineer in Applied Mathematics. He finished his PhD in 2004 in the rainy country of Belgium. After 2 years in the Common Language Runtime (i.e. .net), he is now working at Microsoft Research on Pex (http://research.microsoft.com/pex).

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