From cb0eeaeb320f43845e00f7dd4beab292ad2fed7f Mon Sep 17 00:00:00 2001
From: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
Date: Tue, 6 Nov 2007 13:30:40 +0100
Subject: [PATCH] generate gnuplot-compatible data script files

---
 src/common/gnuplot.cc | 80 +++++++++++++++++++++++++++++++++++++++++++
 src/common/gnuplot.h  | 58 +++++++++++++++++++++++++++++++
 src/common/wscript    |  2 ++
 3 files changed, 140 insertions(+)
 create mode 100644 src/common/gnuplot.cc
 create mode 100644 src/common/gnuplot.h

diff --git a/src/common/gnuplot.cc b/src/common/gnuplot.cc
new file mode 100644
index 000000000..cbf98312e
--- /dev/null
+++ b/src/common/gnuplot.cc
@@ -0,0 +1,80 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 INRIA
+ *
+ * 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
+ *
+ * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#include "gnuplot.h"
+#include <ostream>
+
+namespace ns3 {
+
+GnuplotDataset::GnuplotDataset (std::string title)
+  : m_title (title)
+{}
+void 
+GnuplotDataset::Add (double x, double y)
+{
+  m_dataset.push_back (std::make_pair (x,y));
+}
+
+Gnuplot::Gnuplot (std::string pngFilename)
+  : m_pngFilename (pngFilename)
+{}
+
+Gnuplot::~Gnuplot ()
+{
+  for (Datasets::const_iterator i = m_datasets.begin (); i != m_datasets.end (); i++)
+    {
+      delete *i;
+    }
+  m_datasets.clear ();
+}
+
+void 
+Gnuplot::AddDataset (const GnuplotDataset &dataset)
+{
+  m_datasets.push_back (new GnuplotDataset (dataset));
+}
+
+void 
+Gnuplot::GenerateOutput (std::ostream &os)
+{
+  os << "set terminal png" << std::endl;
+  os << "set output '" << m_pngFilename << std::endl;
+  os << "plot ";
+  for (Datasets::const_iterator i = m_datasets.begin (); i != m_datasets.end ();)
+    {
+      os << "'-' title " << (*i)->m_title;
+      i++;
+      if (i != m_datasets.end ())
+	{
+	  os << ", ";
+	}
+    }
+  os << std::endl;
+  for (Datasets::const_iterator i = m_datasets.begin (); i != m_datasets.end ();)
+    {
+      for (GnuplotDataset::Dataset::const_iterator j = (*i)->m_dataset.begin ();
+	   j != (*i)->m_dataset.end (); j++)
+	{
+	  os << j->first << " " << j->second << std::endl;
+	}
+      os << "e" << std::endl;
+    }
+}
+
+} // namespace ns3
diff --git a/src/common/gnuplot.h b/src/common/gnuplot.h
new file mode 100644
index 000000000..d692a62b8
--- /dev/null
+++ b/src/common/gnuplot.h
@@ -0,0 +1,58 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 INRIA
+ *
+ * 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
+ *
+ * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#ifndef GNUPLOT_H
+#define GNUPLOT_H
+
+#include <string>
+#include <vector>
+#include <utility>
+
+namespace ns3 {
+
+class GnuplotDataset
+{
+public:
+  GnuplotDataset (std::string title);
+  void Add (double x, double y);
+private:
+  friend class Gnuplot;
+  typedef std::vector<std::pair<double,double> > Dataset;
+  Dataset m_dataset;
+  std::string m_title;
+};
+
+class Gnuplot
+{
+public:
+  Gnuplot (std::string pngFilename);
+  ~Gnuplot ();
+
+  void AddDataset (const GnuplotDataset &dataset);
+
+  void GenerateOutput (std::ostream &os);
+private:
+  typedef std::vector<GnuplotDataset *> Datasets;
+  Datasets m_datasets;
+  std::string m_pngFilename;
+};
+
+} // namespace ns3
+
+#endif /* GNUPLOT_H */
diff --git a/src/common/wscript b/src/common/wscript
index 2472ecd1e..8b016d2ce 100644
--- a/src/common/wscript
+++ b/src/common/wscript
@@ -13,6 +13,7 @@ def build(bld):
         'tag-registry.cc',
         'pcap-writer.cc',
         'data-rate.cc',
+        'gnuplot.cc',
         ]
 
     headers = bld.create_obj('ns3header')
@@ -29,4 +30,5 @@ def build(bld):
         'packet-metadata.h',
         'pcap-writer.h',
         'data-rate.h',
+        'gnuplot.h',
         ]