From 8efa08602a4f89d1c351a199eb07ea6a874ca962 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sat, 23 Feb 2019 23:36:47 +0100
Subject: [PATCH] no plotting, only saving to file if gnuplot_terminal is
 eps/quit or png/quit

---
 src/frontend/plotting/gnuplot.c | 42 +++++++++++++++++++++++----------
 1 file changed, 29 insertions(+), 13 deletions(-)

diff --git a/src/frontend/plotting/gnuplot.c b/src/frontend/plotting/gnuplot.c
index 5a2c50c28..f6286dbc1 100644
--- a/src/frontend/plotting/gnuplot.c
+++ b/src/frontend/plotting/gnuplot.c
@@ -223,21 +223,23 @@ ft_gnuplot(double *xlims, double *ylims, char *filename, char *title, char *xlab
     fprintf(file, "set format y \"%%g\"\n");
     fprintf(file, "set format x \"%%g\"\n");
 
-    fprintf(file, "plot ");
-    i = 0;
+    if ((terminal_type != 3) && (terminal_type != 5)) {
+        fprintf(file, "plot ");
+        i = 0;
 
-    /* Write out the gnuplot command */
-    for (v = vecs; v; v = v->v_link2) {
-        scale = v->v_scale;
-        if (v->v_name) {
-            i = i + 2;
-            if (i > 2) fprintf(file, ",\\\n");
-            fprintf(file, "\'%s\' using %d:%d with %s lw %d title ",
-                    filename_data, i-1, i, plotstyle, linewidth);
-            quote_gnuplot_string(file, v->v_name);
+        /* Write out the gnuplot command */
+        for (v = vecs; v; v = v->v_link2) {
+            scale = v->v_scale;
+            if (v->v_name) {
+                i = i + 2;
+                if (i > 2) fprintf(file, ",\\\n");
+                fprintf(file, "\'%s\' using %d:%d with %s lw %d title ",
+                    filename_data, i - 1, i, plotstyle, linewidth);
+                quote_gnuplot_string(file, v->v_name);
+            }
         }
+        fprintf(file, "\n");
     }
-    fprintf(file, "\n");
 
     /* terminal_type
     1: do not print an eps or png file
@@ -263,7 +265,21 @@ ft_gnuplot(double *xlims, double *ylims, char *filename, char *title, char *xlab
     }
 
     if ((terminal_type == 3) || (terminal_type == 5)) {
-        fprintf(file, "replot\n");
+        fprintf(file, "plot ");
+        i = 0;
+
+        /* Write out the gnuplot command */
+        for (v = vecs; v; v = v->v_link2) {
+            scale = v->v_scale;
+            if (v->v_name) {
+                i = i + 2;
+                if (i > 2) fprintf(file, ",\\\n");
+                fprintf(file, "\'%s\' using %d:%d with %s lw %d title ",
+                    filename_data, i - 1, i, plotstyle, linewidth);
+                quote_gnuplot_string(file, v->v_name);
+            }
+        }
+        fprintf(file, "\n");
         fprintf(file, "exit\n");
     }