[Boost-commit] svn:boost r51737 - sandbox/SOC/2007/visualization/libs/svg_plot/example

Subject: [Boost-commit] svn:boost r51737 - sandbox/SOC/2007/visualization/libs/svg_plot/example
From: pbristow_at_[hidden]
Date: 2009-03-12 13:56:53

Author: pbristow
Date: 2009-03-12 13:56:52 EDT (Thu, 12 Mar 2009)
New Revision: 51737
URL: http://svn.boost.org/trac/boost/changeset/51737

Log:
Demon program for annotation
Added:
   sandbox/SOC/2007/visualization/libs/svg_plot/example/demo_annotation.cpp   (contents, props changed)

Added: sandbox/SOC/2007/visualization/libs/svg_plot/example/demo_annotation.cpp
==============================================================================
--- (empty file)
+++ sandbox/SOC/2007/visualization/libs/svg_plot/example/demo_annotation.cpp	2009-03-12 13:56:52 EDT (Thu, 12 Mar 2009)
@@ -0,0 +1,125 @@
+/*! \file demo_notes.cpp
+    \brief Demonstration of 2D 'note' annotation.
+    \details Adding an annotation to a plot.
+    \author Paul A. Bristow
+    \date Mar 2009
+*/
+
+// Copyright Paul A. Bristow 2009
+
+// 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 file is written to be included from a Quickbook .qbk document.
+// It can be compiled by the C++ compiler, and run. Any output can
+// also be added here as comment or included or pasted in elsewhere.
+// Caution: this file contains Quickbook markup as well as code
+// and comments: don't change any of the special comment markups!
+
+#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 : 4503) // decorated name length exceeded, name was truncated
+#  pragma warning (disable : 4512) // assignment operator could not be generated
+#  pragma warning (disable : 4100) // unreferenced formal parameter
+#endif
+
+//[demo_2d_annotation_1
+
+/*`First we need some includes to use Boost.Plot and C++ Standard Library:
+*/#include <boost/svg_plot/svg_2d_plot.hpp>
+using namespace boost::svg;
+
+#include <boost/svg_plot/show_2d_settings.hpp>
+// using boost::svg::show_2d_plot_settings - Only needed for showing which settings in use.
+
+#include <map>
+  using std::map;
+  using std::multimap;
+
+#include <iostream>
+   using std::cout;
+   using std::endl;
+   using std::scientific;
+   using std::hex;
+   using std::ios;
+   using std::boolalpha;
+
+int main()
+{
+  try
+  {
+//[demo_2d_annotation_2
+
+/*`
+This shows how to add notes to a plot, for example to identify a particular area or point.
+*/
+
+  map<double, double> my_data;
+
+  my_data[1.1] = 3.2;
+  my_data[4.3] = 3.1;
+  my_data[0.25] = 1.4;
+
+  
+  /*`
+  First construct, size and draw a simple plot ready to add some sample annotation.
+  */
+  svg_2d_plot my_plot;
+  my_plot.size(400, 300);
+  my_plot.plot(my_data, "my_data").fill_color(red);
+  /*`Now add a string note at the SVG coordinates X = 100 and Y =200.
+  */
+  my_plot.draw_note(150, 200, "My 1st Note");
+  /*`
+  Note that for SVG coordinates, Y increases *down* the page, so Y = 0 is the top and Y = 300 is the bottom.
+  Defaults are provided for size, text style = no_style, center alignment and rotation horizontal.
+  */
+  my_plot.draw_note(40, 10, "top left (0, 0)");
+  my_plot.draw_note(my_plot.image_x_size()-10, my_plot.image_y_size()- 10, "bottom right(380, 280)", no_style, right_align);
+
+/*`Using center_align is strongly recommended because it will ensure that note will center correctly
+ (even if note string is made much longer because it contains Unicode,
+ for example Greek, taking about 6 characters per symbol)
+because the render engine does the centering.
+You can use either plain char space or Unicode space \&#x00a0;
+*/
+  my_plot.draw_note(150, 100, "Greek Unicode &#x3A9;&#x3A6;&#x221A;&#x00a0;&#x221E;&#x3B6; &#x00B1;");
+/*`You can change the font, but defining a new text_style, for example: */
+  
+  text_style my_note_style(16, "verdana", "italic", "bold"); // Used for note below.
+  
+/*`and you can change the alignment and rotation using enums align_style and rotate_style.
+*/
+  my_plot.draw_note(350, 70, "My 2nd Note", my_note_style, right_align, slopeup);
+
+/*`To change the color to red (and text style,  alignment and rotation too, just for fun)
+*/
+  text_style my_red_note_style(16, "arial", "italic", "bold");
+  my_plot.draw_note(350, 170, "Red Note", my_red_note_style, left_align, upsidedown, red);
+  my_plot.draw_note(300, 220, "Blue Note");
+
+  my_plot.write("./demo_2d_annotation");
+
+  //show_2d_plot_settings(my_plot);
+
+  //] [/demo_1d_uncertainty_2]
+  
+  }
+  catch (char* message)
+  {
+    cout << message << endl;
+  }
+  return 0;
+} // int main()
+
+/*
+
+Output :
+
+*/
+/*
+
+*/