From c9c13fe504bb9ad8b77582ace30eeafb5a90118b Mon Sep 17 00:00:00 2001
From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Fri, 26 Dec 2003 16:54:55 +0000
Subject: [PATCH] using --riggid it is possible to get a case where minval is
 bigger than maxval ... this breaks the horizontal grid ...

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@229 a5681a0c-68f1-0310-ab6d-d61299d08faa
---
 program/src/rrd_graph.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/program/src/rrd_graph.c b/program/src/rrd_graph.c
index c60717fa..afcbc014 100644
--- a/program/src/rrd_graph.c
+++ b/program/src/rrd_graph.c
@@ -1072,6 +1072,11 @@ data_proc( image_desc_t *im ){
 	else
 	    im->maxval = maxval;
     }
+    /* make sure min is smaller than max */
+    if (im->minval > im->maxval) {
+            im->minval = 0.99 * im->maxval;
+    }
+                      
     /* make sure min and max are not equal */
     if (im->minval == im->maxval) {
 	im->maxval *= 1.01; 
-- 
2.30.2