Click here to Skip to main content
15,885,914 members
Articles / Programming Languages / C++

A Normal / Exponential Random Generator and Histogram Class

Rate me:
Please Sign up or sign in to vote.
4.73/5 (11 votes)
2 Dec 20024 min read 276.4K   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.
/*
Plot Graphic Library,
a C++/MFC charting library.

  Copyright (C) 2001  de Halleux Jonathan

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Contact: de Halleux Jonathan, pglinfo@patabelgos.org
*/
#if !defined(AFX_PGLTEXTPROPPAGE_H__EACBD19F_C8E6_4CBC_97C8_1D75881D068A__INCLUDED_)
#define AFX_PGLTEXTPROPPAGE_H__EACBD19F_C8E6_4CBC_97C8_1D75881D068A__INCLUDED_

#include "PGLText.h"

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

/////////////////////////////////////////////////////////////////////////////
// CPGLTextPropPage dialog

/*! \brief Text property page.

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

// Construction
public:
	CPGLTextPropPage(CPGLText* _pText=NULL);
	~CPGLTextPropPage();

// Dialog Data
	//{{AFX_DATA(CPGLTextPropPage)
	enum { IDD = IDD_PGL_PROPPAGE_TEXT };
	CString	m_sText;
	float	m_fAngle;
	int		m_rAlign;
	//}}AFX_DATA


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

// Implementation
protected:
	void Refresh();
	CPGLText* m_pText;
	// Generated message map functions
	//{{AFX_MSG(CPGLTextPropPage)
	afx_msg void OnPglButtonChooseFont();
	afx_msg void OnKillfocusPglEditStrinText();
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()

};

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

#endif // !defined(AFX_PGLTEXTPROPPAGE_H__EACBD19F_C8E6_4CBC_97C8_1D75881D068A__INCLUDED_)

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.


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).

Comments and Discussions