File gnuplot-4.6.0-demo.diff of Package gnuplot

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File gnuplot-4.6.0-demo.diff of Package gnuplot (Revision aedd305455a5d93b7bf5a592d559a381)

Currently displaying revision aedd305455a5d93b7bf5a592d559a381 , Show latest

--- demo/fit.dem
+++ demo/fit.dem	2020-07-17 07:25:00.022670914 +0000
@@ -6,6 +6,7 @@ set dummy x, y
 
 print "Some examples how data fitting using nonlinear least squares fit can be done."
 print ''
+logfile = "`mktemp /tmp/fit.log.XXXXXX`"
 
 print "We fit a straight line to the data -- only as a demo without physical meaning."
 l(x) = y0 + m*x
@@ -25,6 +26,7 @@ set title 'data set and initial paramete
 plot 'lcdemo.dat', l(x)
 pause -1 "Now start fitting...  (-> return)"
 
+set fit logfile logfile
 fit l(x) 'lcdemo.dat' via y0, m
 set title 'unweighted fit'
 plot 'lcdemo.dat', l(x)
@@ -320,6 +322,7 @@ print '     "fit3.dat" u 1:2:3:4 via a0,
 pause -1 "Press enter to proceed with the next example."
 
 reset
+set fit logfile logfile
 print "\n"
 print "The fit command can handle errors in the independent variable, too."
 print "The problem shown here is Pearson's data with York's weights.\n"
@@ -425,6 +428,7 @@ print "to time."
 print ''
 pause -1 "Done with fitting demo  (-> return)"
 reset
+set fit logfile logfile
 set encoding myencoding
 # release datablock
 undefine $PearsonYork
--- demo/poldat.dem
+++ demo/poldat.dem	2020-07-17 07:25:00.022670914 +0000
@@ -7,7 +7,7 @@ unset grid
 unset polar
 set title "Primitive Smith Chart"
 unset key
-set xlabel "Impedance or Admittance Coordinates"
+set xlabel "Impedance or Admittance Coordinates" offset 12,-1
 set para
 set rrange [-0 : 10]
 set trange [-pi : pi]
--- demo/simple.dem
+++ demo/simple.dem	2020-07-17 07:25:00.022670914 +0000
@@ -5,14 +5,13 @@
 #
 set title "Simple Plots" font ",20"
 set key left box
-set samples 50
+set samples 400
 set style data points
 
 plot [-10:10] sin(x),atan(x),cos(atan(x))
 pause -1 "Hit return to continue"
 
 set key right nobox
-set samples 100
 plot [-pi/2:pi] cos(x),-(sin(x) > sin(x+1) ? sin(x) : sin(x+1))
 pause -1 "Hit return to continue"
 
--- src/loadpath.c
+++ src/loadpath.c	2024-01-08 09:15:14.362384507 +0000
@@ -31,6 +31,10 @@
 ]*/
 
 #include <string.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 
 #include "loadpath.h"
 #include "alloc.h"
@@ -72,6 +76,18 @@ init_loadpath()
     if (!loadpath)
     {
 	char *envlib = getenv("GNUPLOT_LIB");
+#ifdef GNUPLOT_LIB_DEFAULT
+	char *defenvlib = (char*)0;
+	struct stat st;
+	if ((stat(GNUPLOT_LIB_DEFAULT, &st) == 0) && S_ISDIR(st.st_mode)) {
+		if (envlib) {
+			if (asprintf(&defenvlib, "%s:%s", envlib, GNUPLOT_LIB_DEFAULT) > 0)
+				envlib = defenvlib;
+		} else
+			envlib = GNUPLOT_LIB_DEFAULT;
+	}
+#endif /* GNUPLOT_LIB_DEFAULT */
+
 	if (envlib) {
 	    int len = strlen(envlib);
 	    loadpath = gp_strdup(envlib);
@@ -81,6 +97,11 @@ init_loadpath()
 	    PATHSEP_TO_NUL(loadpath);
 	}
 	/* else: NULL = empty */
+#ifdef GNUPLOT_LIB_DEFAULT
+	if (defenvlib)
+		free(defenvlib);
+#endif /* GNUPLOT_LIB_DEFAULT */
+
     }
     /* point to env portion of loadpath */
     envptr = loadpath;
--- src/show.c
+++ src/show.c	2020-07-17 07:25:00.022670914 +0000
@@ -1140,6 +1140,15 @@ show_version(FILE *fp)
 	    p 			/* type "help seeking-assistance" */
 	    );
 
+#ifdef GNUPLOT_LIB_DEFAULT
+   {
+	struct stat st;
+	if ((stat(GNUPLOT_LIB_DEFAULT, &st) == 0) && S_ISDIR(st.st_mode)) {
+	    fprintf(fp, "%s\n%s\tType `load \"all.dem\"` to display a large number of examples.", p, p);
+	    fprintf(fp, "\n%s\tThey are located at %s/*\n%s\n", p, GNUPLOT_LIB_DEFAULT, p);
+	}
+   }
+#endif
 
     /* show version long */
     if (almost_equals(c_token, "l$ong")) {

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File gnuplot-4.6.0-demo.diff of Package gnuplot (Revision aedd305455a5d93b7bf5a592d559a381)

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