Changeset 26 for trunk/README

Timestamp:

Jan 5, 2006, 2:36:42 AM (17 years ago)

Author:

Jari Häkkinen

Message:

Added a Gnuplot interface class.

File:

• trunk/README (modified) (1 diff)

trunk/README

@@ -1 +1 @@
 // $Id$
+
+Acknowledgements
+
+svnstat uses a C++ interface to Gnuplot written by Rajarshi Guha. The
+interface is integrated in the svnstat code with some modifications
+(see below). The original code used for svnstat can be found in
+directory ./gnuplot_i++.
+
+Rajarshi Guha's "A C++ Interface to Gnuplot" can be found through
+http://jijo.cjb.net/ . The C++ interface is based on "gnuplot
+interfaces in ANSI C" written by Nicolas Devillard. The C implemention
+is available through http://ndevilla.free.fr/ .
+
+Changes made to the C++ Gnuplot interface files (gnuplot_i.hpp and
+gnuplot_i.cc):
+
+i) Changed filename gnuplot_i.hpp to gnuplot_i.h, and consequently
+   changed #include directive in gnuplot_i.cc.
+
+ii) Encapsulated the interface into namespace theplu::svnstat.
+
+iii) Added $Id$ tags in both files.
+
+iv) Changed the initial #ifndef/#define idiom to avoid potential
+   clash with the original implementation.
+
+v) gnuplot_i.h: Removed the 'using namespace std;' statement, since we
+   don't want to expose the std namespace to everyone using the
+   Gnuplot interface. This triggered subsequent changes to code lines
+   with string and vector<> usage.
+
+vi) Resolved signed/unsigned compiler warnings in gnuplot_i.cc on
+   lines 235, 278, 418, and 482
+
+vii) gnuplot_i.cc: Changed order of code in Gnuplot destructor, now
+   the pipe is closed first. I have not done a full scale
+   investigation on why this is needed, but on MacOSX the files are
+   removed before gnuplot plots data when the original code order is
+   kept.