From bb9a00994ce7159304f7728d3d3291af5632c42e Mon Sep 17 00:00:00 2001
From: Dima Kogan <dkogan@cds.caltech.edu>
Date: Wed, 4 Feb 2009 13:39:24 -0800
Subject: [PATCH] drivegnuplots: only output the header if we've data for this
 data set

Ignore-this: effce8f31a4e9d8272927ed9faaf92c1

darcs-hash:20090204213924-0cb85-17f735f088325e37142d41dd987212c90e343950.gz
---
 driveGnuPlots.pl | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/driveGnuPlots.pl b/driveGnuPlots.pl
index 00c3cbc..e3e0f07 100755
--- a/driveGnuPlots.pl
+++ b/driveGnuPlots.pl
@@ -66,10 +66,10 @@ sub main {
     my $streamIdx = 0;
     select((select(STDOUT), $| = 1)[0]);
     my $xcounter = 0;
-    plotHeader($xcounter, $samples, $numberOfStreams, *PIPE);
     while(<>) {
         chomp;
         my $line = $_;
+        plotHeader($xcounter, $samples, $numberOfStreams, *PIPE) if($streamIdx == 0);
         foreach my $point ($line =~ /([-]?[0-9\.]+)/g)
         {
           my $buf = $buffers[$streamIdx];
@@ -92,7 +92,6 @@ sub main {
           if ($streamIdx == $numberOfStreams) {
             $streamIdx = 0;
             $xcounter++;
-            plotHeader($xcounter, $samples, $numberOfStreams, *PIPE);
           }
         }
     }