add gnuplot

README.txt

+This is a code example of modification of DMPs.
+
+Requirements:
+
+g++ compiler
+
+Armadillo C++ Linear Algebra Library
+http://arma.sourceforge.net/
+
+Note: Before installing Armadillo, it's required to have LAPACK and BLAS installed, along with the corresponding development/header files.
+

gnuplot-cpp/Makefile

+CFLAGS = -ggdb
+DEFINES = -DDEBUGGA
+INCLUDES = 
+LIBS = -lstdc++
+EXAMPLE = example.o
+CC=g++
+
+.cc.o:
+	$(CC) -c $(CFLAGS) $(DEFINES) $(INCLUDES) $<
+
+all::	example
+
+gnuplot_i.o:	gnuplot_i.hpp
+example.o:	example.cc
+
+example: $(EXAMPLE)
+	$(CC) -o $@ $(CFLAGS) $(EXAMPLE) $(LIBS)
+
+clean: 
+	rm -f $(EXAMPLE) example

gnuplot-cpp/doc/Doxyfile

+# Doxyfile 1.5.6
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+DOXYFILE_ENCODING      = UTF-8
+PROJECT_NAME           = gnuplot-cpp
+PROJECT_NUMBER         = 0.9
+OUTPUT_DIRECTORY       = ./
+CREATE_SUBDIRS         = YES
+OUTPUT_LANGUAGE        = English
+BRIEF_MEMBER_DESC      = YES
+REPEAT_BRIEF           = YES
+ABBREVIATE_BRIEF       = 
+ALWAYS_DETAILED_SEC    = NO
+INLINE_INHERITED_MEMB  = NO
+FULL_PATH_NAMES        = NO
+STRIP_FROM_PATH        = 
+STRIP_FROM_INC_PATH    = 
+SHORT_NAMES            = NO
+JAVADOC_AUTOBRIEF      = NO
+QT_AUTOBRIEF           = NO
+MULTILINE_CPP_IS_BRIEF = NO
+DETAILS_AT_TOP         = NO
+INHERIT_DOCS           = YES
+SEPARATE_MEMBER_PAGES  = NO
+TAB_SIZE               = 8
+ALIASES                = 
+OPTIMIZE_OUTPUT_FOR_C  = NO
+OPTIMIZE_OUTPUT_JAVA   = NO
+OPTIMIZE_FOR_FORTRAN   = NO
+OPTIMIZE_OUTPUT_VHDL   = NO
+BUILTIN_STL_SUPPORT    = NO
+CPP_CLI_SUPPORT        = NO
+SIP_SUPPORT            = NO
+IDL_PROPERTY_SUPPORT   = YES
+DISTRIBUTE_GROUP_DOC   = NO
+SUBGROUPING            = YES
+TYPEDEF_HIDES_STRUCT   = NO
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+EXTRACT_ALL            = YES
+EXTRACT_PRIVATE        = NO
+EXTRACT_STATIC         = NO
+EXTRACT_LOCAL_CLASSES  = YES
+EXTRACT_LOCAL_METHODS  = NO
+EXTRACT_ANON_NSPACES   = NO
+HIDE_UNDOC_MEMBERS     = NO
+HIDE_UNDOC_CLASSES     = NO
+HIDE_FRIEND_COMPOUNDS  = NO
+HIDE_IN_BODY_DOCS      = NO
+INTERNAL_DOCS          = NO
+CASE_SENSE_NAMES       = NO
+HIDE_SCOPE_NAMES       = NO
+SHOW_INCLUDE_FILES     = YES
+INLINE_INFO            = YES
+SORT_MEMBER_DOCS       = YES
+SORT_BRIEF_DOCS        = NO
+SORT_GROUP_NAMES       = NO
+SORT_BY_SCOPE_NAME     = NO
+GENERATE_TODOLIST      = YES
+GENERATE_TESTLIST      = YES
+GENERATE_BUGLIST       = YES
+GENERATE_DEPRECATEDLIST= YES
+ENABLED_SECTIONS       = 
+MAX_INITIALIZER_LINES  = 30
+SHOW_USED_FILES        = YES
+SHOW_DIRECTORIES       = NO
+SHOW_FILES             = YES
+SHOW_NAMESPACES        = YES
+FILE_VERSION_FILTER    = 
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+QUIET                  = NO
+WARNINGS               = YES
+WARN_IF_UNDOCUMENTED   = YES
+WARN_IF_DOC_ERROR      = YES
+WARN_NO_PARAMDOC       = NO
+WARN_FORMAT            = "$file:$line: $text"
+WARN_LOGFILE           = 
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+INPUT                  = ../
+INPUT_ENCODING         = UTF-8
+FILE_PATTERNS          = 
+RECURSIVE              = NO
+EXCLUDE                = 
+EXCLUDE_SYMLINKS       = NO
+EXCLUDE_PATTERNS       = 
+EXCLUDE_SYMBOLS        = 
+EXAMPLE_PATH           = ../example.cc
+EXAMPLE_PATTERNS       = 
+EXAMPLE_RECURSIVE      = NO
+IMAGE_PATH             = 
+INPUT_FILTER           = 
+FILTER_PATTERNS        = 
+FILTER_SOURCE_FILES    = NO
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+SOURCE_BROWSER         = YES
+INLINE_SOURCES         = YES
+STRIP_CODE_COMMENTS    = YES
+REFERENCED_BY_RELATION = YES
+REFERENCES_RELATION    = YES
+REFERENCES_LINK_SOURCE = YES
+USE_HTAGS              = NO
+VERBATIM_HEADERS       = YES
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+ALPHABETICAL_INDEX     = NO
+COLS_IN_ALPHA_INDEX    = 5
+IGNORE_PREFIX          = 
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+GENERATE_HTML          = YES
+HTML_OUTPUT            = html
+HTML_FILE_EXTENSION    = .html
+HTML_HEADER            = 
+HTML_FOOTER            = 
+HTML_STYLESHEET        = 
+HTML_ALIGN_MEMBERS     = YES
+GENERATE_HTMLHELP      = NO
+GENERATE_DOCSET        = NO
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+HTML_DYNAMIC_SECTIONS  = NO
+CHM_FILE               = 
+HHC_LOCATION           = 
+GENERATE_CHI           = NO
+CHM_INDEX_ENCODING     = 
+BINARY_TOC             = NO
+TOC_EXPAND             = NO
+DISABLE_INDEX          = NO
+ENUM_VALUES_PER_LINE   = 4
+GENERATE_TREEVIEW      = NO
+TREEVIEW_WIDTH         = 250
+FORMULA_FONTSIZE       = 10
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+GENERATE_LATEX         = YES
+LATEX_OUTPUT           = latex
+LATEX_CMD_NAME         = latex
+MAKEINDEX_CMD_NAME     = makeindex
+COMPACT_LATEX          = NO
+PAPER_TYPE             = a4wide
+EXTRA_PACKAGES         = 
+LATEX_HEADER           = 
+PDF_HYPERLINKS         = NO
+USE_PDFLATEX           = YES
+LATEX_BATCHMODE        = NO
+LATEX_HIDE_INDICES     = NO
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+GENERATE_RTF           = NO
+RTF_OUTPUT             = rtf
+COMPACT_RTF            = NO
+RTF_HYPERLINKS         = NO
+RTF_STYLESHEET_FILE    = 
+RTF_EXTENSIONS_FILE    = 
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+GENERATE_MAN           = NO
+MAN_OUTPUT             = man
+MAN_EXTENSION          = .3
+MAN_LINKS              = NO
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+GENERATE_XML           = NO
+XML_OUTPUT             = xml
+XML_SCHEMA             = 
+XML_DTD                = 
+XML_PROGRAMLISTING     = YES
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+GENERATE_AUTOGEN_DEF   = NO
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+GENERATE_PERLMOD       = NO
+PERLMOD_LATEX          = NO
+PERLMOD_PRETTY         = YES
+PERLMOD_MAKEVAR_PREFIX = 
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+ENABLE_PREPROCESSING   = YES
+MACRO_EXPANSION        = NO
+EXPAND_ONLY_PREDEF     = NO
+SEARCH_INCLUDES        = YES
+INCLUDE_PATH           = 
+INCLUDE_FILE_PATTERNS  = 
+PREDEFINED             = 
+EXPAND_AS_DEFINED      = 
+SKIP_FUNCTION_MACROS   = YES
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references   
+#---------------------------------------------------------------------------
+TAGFILES               = 
+GENERATE_TAGFILE       = 
+ALLEXTERNALS           = NO
+EXTERNAL_GROUPS        = YES
+PERL_PATH              = /usr/bin/perl
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+CLASS_DIAGRAMS         = YES
+MSCGEN_PATH            = 
+HIDE_UNDOC_RELATIONS   = YES
+HAVE_DOT               = NO
+DOT_FONTNAME           = FreeSans
+DOT_FONTPATH           = 
+CLASS_GRAPH            = YES
+COLLABORATION_GRAPH    = YES
+GROUP_GRAPHS           = YES
+UML_LOOK               = NO
+TEMPLATE_RELATIONS     = NO
+INCLUDE_GRAPH          = YES
+INCLUDED_BY_GRAPH      = YES
+CALL_GRAPH             = NO
+CALLER_GRAPH           = NO
+GRAPHICAL_HIERARCHY    = YES
+DIRECTORY_GRAPH        = YES
+DOT_IMAGE_FORMAT       = png
+DOT_PATH               = 
+DOTFILE_DIRS           = 
+DOT_GRAPH_MAX_NODES    = 50
+MAX_DOT_GRAPH_DEPTH    = 0
+DOT_TRANSPARENT        = YES
+DOT_MULTI_TARGETS      = NO
+GENERATE_LEGEND        = YES
+DOT_CLEANUP            = YES
+#---------------------------------------------------------------------------
+# Configuration::additions related to the search engine   
+#---------------------------------------------------------------------------
+SEARCHENGINE           = NO

gnuplot-cpp/example.cc

+// Example for C++ Interface to Gnuplot
+
+// requirements:
+// * gnuplot has to be installed (http://www.gnuplot.info/download.html)
+// * for Windows: set Path-Variable for Gnuplot path (e.g. C:/program files/gnuplot/bin)
+//             or set Gnuplot path with: Gnuplot::set_GNUPlotPath(const std::string &path);
+
+
+#include <iostream>
+#include "gnuplot_i.hpp" //Gnuplot class handles POSIX-Pipe-communikation with Gnuplot
+
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__TOS_WIN__)
+ #include <conio.h>   //for getch(), needed in wait_for_key()
+ #include <windows.h> //for Sleep()
+ void sleep(int i) { Sleep(i*1000); }
+#endif
+
+
+#define SLEEP_LGTH 2  // sleep time in seconds
+#define NPOINTS    50 // length of array
+
+void wait_for_key(); // Programm halts until keypress
+
+using std::cout;
+using std::endl;
+
+int main(int argc, char* argv[])
+{
+    // if path-variable for gnuplot is not set, do it with:
+    // Gnuplot::set_GNUPlotPath("C:/program files/gnuplot/bin/");
+
+    // set a special standard terminal for showonscreen (normally not needed),
+    //   e.g. Mac users who want to use x11 instead of aqua terminal:
+    // Gnuplot::set_terminal_std("x11");
+
+    cout << "*** example of gnuplot control through C++ ***" << endl << endl;
+
+    //
+    // Using the GnuplotException class
+    //
+    try
+    {
+        Gnuplot g1("lines");
+
+        //
+        // Slopes
+        //
+        cout << "*** plotting slopes" << endl;
+        g1.set_title("Slopes\\nNew Line");
+
+        cout << "y = x" << endl;
+        g1.plot_slope(1.0,0.0,"y=x");
+
+        cout << "y = 2*x" << endl;
+        g1.plot_slope(2.0,0.0,"y=2x");
+
+        cout << "y = -x" << endl;
+        g1.plot_slope(-1.0,0.0,"y=-x");
+        g1.unset_title();
+
+        //
+        // Equations
+        //
+        g1.reset_plot();
+        cout << endl << endl << "*** various equations" << endl;
+
+        cout << "y = sin(x)" << endl;
+        g1.plot_equation("sin(x)","sine");
+
+        cout << "y = log(x)" << endl;
+        g1.plot_equation("log(x)","logarithm");
+
+        cout << "y = sin(x) * cos(2*x)" << endl;
+        g1.plot_equation("sin(x)*cos(2*x)","sine product");
+
+        //
+        // Styles
+        //
+        g1.reset_plot();
+        cout << endl << endl << "*** showing styles" << endl;
+
+        cout << "sine in points" << endl;
+        g1.set_pointsize(0.8).set_style("points");
+        g1.plot_equation("sin(x)","points");
+
+        cout << "sine in impulses" << endl;
+        g1.set_style("impulses");
+        g1.plot_equation("sin(x)","impulses");
+
+        cout << "sine in steps" << endl;
+        g1.set_style("steps");
+        g1.plot_equation("sin(x)","steps");
+
+        //
+        // Save to ps
+        //
+        g1.reset_all();
+        cout << endl << endl << "*** save to ps " << endl;
+
+        cout << "y = sin(x) saved to test_output.ps in working directory" << endl;
+        g1.savetops("test_output");
+        g1.set_style("lines").set_samples(300).set_xrange(0,5);
+        g1.plot_equation("sin(12*x)*exp(-x)").plot_equation("exp(-x)");
+
+        g1.showonscreen(); // window output
+
+
+        //
+        // User defined 1d, 2d and 3d point sets
+        //
+        std::vector<double> x, y, y2, dy, z;
+
+        for (int i = 0; i < NPOINTS; i++)  // fill double arrays x, y, z
+        {
+            x.push_back((double)i);             // x[i] = i
+            y.push_back((double)i * (double)i); // y[i] = i^2
+            z.push_back( x[i]*y[i] );           // z[i] = x[i]*y[i] = i^3
+            dy.push_back((double)i * (double)i / (double) 10); // dy[i] = i^2 / 10
+        }
+        y2.push_back(0.00); y2.push_back(0.78); y2.push_back(0.97); y2.push_back(0.43);
+        y2.push_back(-0.44); y2.push_back(-0.98); y2.push_back(-0.77); y2.push_back(0.02);
+
+
+        g1.reset_all();
+        cout << endl << endl << "*** user-defined lists of doubles" << endl;
+        g1.set_style("impulses").plot_x(y,"user-defined doubles");
+
+        g1.reset_plot();
+        cout << endl << endl << "*** user-defined lists of points (x,y)" << endl;
+        g1.set_grid();
+        g1.set_style("points").plot_xy(x,y,"user-defined points 2d");
+
+        g1.reset_plot();
+        cout << endl << endl << "*** user-defined lists of points (x,y,z)" << endl;
+        g1.unset_grid();
+        g1.plot_xyz(x,y,z,"user-defined points 3d");
+
+		wait_for_key();
+
+        g1.reset_plot();
+        cout << endl << endl << "*** user-defined lists of points (x,y,dy)" << endl;
+        g1.plot_xy_err(x,y,dy,"user-defined points 2d with errorbars");
+		
+
+        //
+        // Multiple output screens
+        //
+        cout << endl << endl;
+        cout << "*** multiple output windows" << endl;
+
+        g1.reset_plot();
+        g1.set_style("lines");
+        cout << "window 1: sin(x)" << endl;
+        g1.set_grid().set_samples(600).set_xrange(0,300);
+        g1.plot_equation("sin(x)+sin(x*1.1)");
+
+        g1.set_xautoscale().replot();
+
+        Gnuplot g2;
+        cout << "window 2: user defined points" << endl;
+        g2.plot_x(y2,"points");
+        g2.set_smooth().plot_x(y2,"cspline");
+        g2.set_smooth("bezier").plot_x(y2,"bezier");
+        g2.unset_smooth();
+
+        Gnuplot g3("lines");
+        cout << "window 3: log(x)/x" << endl;
+        g3.set_grid();
+        g3.plot_equation("log(x)/x","log(x)/x");
+
+        Gnuplot g4("lines");
+        cout << "window 4: splot x*x+y*y" << endl;
+        g4.set_zrange(0,100);
+        g4.set_xlabel("x-axis").set_ylabel("y-axis").set_zlabel("z-axis");
+        g4.plot_equation3d("x*x+y*y");
+
+        Gnuplot g5("lines");
+        cout << "window 5: splot with hidden3d" << endl;
+        g5.set_isosamples(25).set_hidden3d();
+        g5.plot_equation3d("x*y*y");
+
+        Gnuplot g6("lines");
+        cout << "window 6: splot with contour" << endl;
+        g6.set_isosamples(60).set_contour();
+        g6.unset_surface().plot_equation3d("sin(x)*sin(y)+4");
+
+        g6.set_surface().replot();
+
+        Gnuplot g7("lines");
+        cout << "window 7: set_samples" << endl;
+        g7.set_xrange(-30,20).set_samples(40);
+        g7.plot_equation("besj0(x)*0.12e1").plot_equation("(x**besj0(x))-2.5");
+
+        g7.set_samples(400).replot();
+
+        Gnuplot g8("filledcurves");
+        cout << "window 8: filledcurves" << endl;
+        g8.set_legend("outside right top").set_xrange(-5,5);
+        g8.plot_equation("x*x").plot_equation("-x*x+4");
+
+        //
+        // Plot an image
+        //
+        Gnuplot g9;
+        cout << "window 9: plot_image" << endl;
+        const int iWidth  = 255;
+        const int iHeight = 255;
+        g9.set_xrange(0,iWidth).set_yrange(0,iHeight).set_cbrange(0,255);
+        g9.cmd("set palette gray");
+        unsigned char ucPicBuf[iWidth*iHeight];
+        // generate a greyscale image
+        for(int iIndex = 0; iIndex < iHeight*iWidth; iIndex++)
+        {
+            ucPicBuf[iIndex] = iIndex%255;
+        }
+        g9.plot_image(ucPicBuf,iWidth,iHeight,"greyscale");
+
+        g9.set_pointsize(0.6).unset_legend().plot_slope(0.8,20);
+
+        //
+        // manual control
+        //
+        Gnuplot g10;
+        cout << "window 10: manual control" << endl;
+        g10.cmd("set samples 400").cmd("plot abs(x)/2"); // either with cmd()
+        g10 << "replot sqrt(x)" << "replot sqrt(-x)";    // or with <<
+
+        wait_for_key(); 
+
+    }
+    catch (GnuplotException ge)
+    {
+        cout << ge.what() << endl;
+    }
+
+
+    cout << endl << "*** end of gnuplot example" << endl;
+
+    return 0;
+
+}
+
+
+
+void wait_for_key ()
+{
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__TOS_WIN__)  // every keypress registered, also arrow keys
+    cout << endl << "Press any key to continue..." << endl;
+
+    FlushConsoleInputBuffer(GetStdHandle(STD_INPUT_HANDLE));
+    _getch();
+#elif defined(unix) || defined(__unix) || defined(__unix__) || defined(__APPLE__)
+    cout << endl << "Press ENTER to continue..." << endl;
+
+    std::cin.clear();
+    std::cin.ignore(std::cin.rdbuf()->in_avail());
+    std::cin.get();
+#endif
+    return;
+}