[Boost-commit] svn:boost r43305 - sandbox/SOC/2007/visualization/libs/svg_plot/example

From: pbristow_at_[hidden]
Date: 2008-02-18 10:14:01

Author: pbristow
Date: 2008-02-18 10:14:00 EST (Mon, 18 Feb 2008)
New Revision: 43305
URL: http://svn.boost.org/trac/boost/changeset/43305

Log:
New simple demo of 2d plot - just title & axes for example.
Added:
   sandbox/SOC/2007/visualization/libs/svg_plot/example/demo_2d_simple.cpp   (contents, props changed)

Added: sandbox/SOC/2007/visualization/libs/svg_plot/example/demo_2d_simple.cpp
==============================================================================
--- (empty file)
+++ sandbox/SOC/2007/visualization/libs/svg_plot/example/demo_2d_simple.cpp	2008-02-18 10:14:00 EST (Mon, 18 Feb 2008)
@@ -0,0 +1,104 @@
+// demoe_2d_plot.cpp
+
+// Copyright Jacob Voytko 2007
+// Copyright Paul A. Bristow 2007
+
+// Use, modification and distribution are subject to the
+// Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// -----------------------------------------------------------------
+
+// This demonstrates plotting some math functions with most of the 2-D defaults,
+// just chaning a few typical details.
+// See default_2d_plot.cpp for using *all* defaults.
+// See also demo_2d_plot.cpp for use of some of the very many options.
+
+#ifdef _MSC_VER
+#  pragma warning (disable : 4800) // forcing value to bool 'true' or 'false' (performance warning)
+#  pragma warning (disable : 4180) // qualifier applied to function type has no meaning; ignored
+//#  pragma warning (disable : 4172) // returning address of local variable or temporary
+#  pragma warning (disable : 4512) // assignment operator could not be generated
+#  pragma warning (disable : 4503) // decorated name length exceeded, name was truncated
+#  pragma warning (disable : 4180) // qualifier applied to function type has no meaning; ignored
+#endif
+
+#include <boost/svg_plot/svg_2d_plot.hpp>
+  using boost::svg::svg_2d_plot;
+
+#include <boost/svg_plot/show_2d_settings.hpp>
+// Only needed for showing which settings in use.
+
+#include <iostream>
+  using std::cout;
+  using std::endl;
+  using std::boolalpha;
+#include <map>
+  using std::map;
+#include <cmath>
+  using std::sqrt;
+#include <string>
+  using std::string;
+
+using namespace boost::svg;
+// Will be *very convenient* if using any SVG named colors,
+// to avoid writing
+  using boost::svg::red;
+// for every color used.
+
+double f(double x)
+{
+  return sqrt(x);
+}
+
+double g(double x)
+{
+  return -2 + x*x;
+}
+
+double h(double x)
+{
+  return -1 + 2 * x;
+}
+
+int main()
+{
+
+  // Some containers for (sorted) sample data.
+  map<double, double> data1;
+  map<double, double> data2;
+  map<double, double> data3;
+
+  for(double i = -5; i <= 10.; i += 1.)
+  { // Several data points for each function.
+    data1[i] = f(i);
+    data2[i] = g(i);
+    data3[i] = h(i);
+    // List if desired:
+    // cout << i << ' '<< data1[i] << ' ' << data2[i] << ' '<< data3[i] << endl;
+  }
+
+  svg_2d_plot my_plot;
+  // Uses most defaults.
+
+  // Scale settings are often sensible.
+  // (Until autoscale is available).
+
+  // Add the data series to the plot:
+  my_plot.title("demo_2d_simple");
+  my_plot.title(" more title");
+  cout << my_plot.title() << endl;
+
+  std::string s = my_plot.title();
+
+  my_plot.plot(data1, "Sqrt(x)").fill_color(red);
+	my_plot.plot(data2, "-2 + x^2").fill_color(orange).size(5);
+	my_plot.plot(data3, "-1 + 2x").fill_color(yellow).bezier_on(true).line_color(blue).shape(square);
+
+  my_plot.write("./demo_2d_simple.svg");
+
+  show_plot_settings(my_plot);
+
+  return 0;
+} // int main()