# HG changeset patch
# User Shane Carr <shane.carr@wustl.edu>
# Date 1362892409 21600
# Node ID 1dfc042804952d4d82ede99b6ca9baebf67183d4
# Parent  830f27544bb74b8af844307437d27f413c9fff52
Enabling outfile for gnuplot in drawnow

diff --git a/scripts/plot/__gnuplot_drawnow__.m b/scripts/plot/__gnuplot_drawnow__.m
--- a/scripts/plot/__gnuplot_drawnow__.m
+++ b/scripts/plot/__gnuplot_drawnow__.m
@@ -75,8 +75,13 @@
       new_stream = false;
     endif
     term = gnuplot_default_term (plot_stream);
-    if (strcmp (term, "dumb"))
-      ## popen2 eats stdout of gnuplot, use temporary file instead
+    if (! isempty(getenv ("GNUOUT")))
+      ## When GNUOUT is specified, tell GNUPlot to print to that filename
+      enhanced = gnuplot_set_term (plot_stream(1), new_stream, h,
+                                   term, getenv ("GNUOUT"));
+    elseif (strcmp (term, "dumb"))
+      ## dumb prints to stdout
+      ## popen2 eats stdout of gnuplot, so use temporary file instead
       dumb_tmp_file = tmpnam ();
       enhanced = gnuplot_set_term (plot_stream(1), new_stream, h,
                                    term, dumb_tmp_file);