gnuplot.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2007 INRIA, 2008 Timo Bingmann
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Original Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 * Enhancements: Timo Bingmann <timo.bingmann@student.kit.edu>
 */
#ifndef GNUPLOT_H
#define GNUPLOT_H

#include <string>
#include <vector>
#include <utility>

namespace ns3 {

class GnuplotDataset
{
public:

  GnuplotDataset (const GnuplotDataset& original);

  ~GnuplotDataset();

  GnuplotDataset& operator= (const GnuplotDataset& original);

  void SetTitle (const std::string& title);

  static void SetDefaultExtra (const std::string& extra);

  void SetExtra (const std::string& extra);

protected:

  friend class Gnuplot;

  static std::string m_defaultExtra;

  struct Data;

  GnuplotDataset (struct Data* data);

  struct Data*  m_data;
};

class Gnuplot2dDataset : public GnuplotDataset
{
public:
  enum Style {
    LINES,
    POINTS,
    LINES_POINTS,
    DOTS,
    IMPULSES,
    STEPS,
    FSTEPS,
    HISTEPS,
  };

  enum ErrorBars {
    NONE,
    X,
    Y,
    XY
  };

  Gnuplot2dDataset (const std::string& title = "Untitled");

  static void SetDefaultStyle (enum Style style);

  void SetStyle (enum Style style);

  static void SetDefaultErrorBars (enum ErrorBars errorBars);

  void SetErrorBars (enum ErrorBars errorBars);

  void Add (double x, double y);

  void Add (double x, double y, double errorDelta);

  void Add (double x, double y, double xErrorDelta, double yErrorDelta);

  void AddEmptyLine ();

private:

  struct Point {
    bool empty;
    double x;
    double y;
    double dx;
    double dy;
  };

  typedef std::vector<struct Point> PointSet;

  static enum Style m_defaultStyle;
  static enum ErrorBars m_defaultErrorBars;

  struct Data2d;
};

class Gnuplot2dFunction : public GnuplotDataset
{
public:
  Gnuplot2dFunction (const std::string& title = "Untitled", const std::string& function = "");

  void SetFunction (const std::string& function);

private:

  struct Function2d;
};

class Gnuplot3dDataset : public GnuplotDataset
{
public:
  Gnuplot3dDataset (const std::string& title = "Untitled");

  static void SetDefaultStyle (const std::string& style);

  void SetStyle (const std::string& style);

  void Add (double x, double y, double z);

  void AddEmptyLine ();

private:

  struct Point {
    bool empty;
    double x, y, z;
  };

  typedef std::vector<struct Point> PointSet;

  static std::string m_defaultStyle;

  struct Data3d;
};

class Gnuplot3dFunction : public GnuplotDataset
{
public:
  Gnuplot3dFunction (const std::string& title = "Untitled", const std::string& function = "");

  void SetFunction (const std::string& function);

private:

  struct Function3d;
};

class Gnuplot
{
public:
  Gnuplot (const std::string& outputFilename="", const std::string& title = "");

  static std::string DetectTerminal (const std::string& filename);

  void SetTerminal (const std::string& terminal);

  void SetTitle (const std::string& title);

  void SetLegend (const std::string& xLegend, const std::string& yLegend);

  void SetExtra (const std::string& extra);

  void AppendExtra (const std::string& extra);

  void AddDataset (const GnuplotDataset& dataset);

  void GenerateOutput (std::ostream &os) const;

private:
  typedef std::vector<GnuplotDataset> Datasets;

  std::string m_outputFilename;
  std::string m_terminal;

  Datasets m_datasets;

  std::string m_title;
  std::string m_xLegend;
  std::string m_yLegend;
  std::string m_extra;
};

class GnuplotCollection
{
public:
  GnuplotCollection (const std::string& outputFilename);

  void SetTerminal (const std::string& terminal);

  void AddPlot (const Gnuplot& plot);

  Gnuplot& GetPlot (unsigned int id);

  void GenerateOutput (std::ostream &os) const;
 
private:
  typedef std::vector<Gnuplot> Plots;

  std::string m_outputFilename;
  std::string m_terminal;

  Plots       m_plots;
};

} // namespace ns3

#endif /* GNUPLOT_H */