From be01c39c3ab39129a4b452cdba0ab5106250ca1a Mon Sep 17 00:00:00 2001
From: xloem <0xloem@gmail.com>
Date: Fri, 30 Sep 2016 16:56:57 -0400
Subject: [PATCH] Empty graph hack fixes #4722 and fixes #5316

---
 app/src/processing/app/SerialPlotter.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/processing/app/SerialPlotter.java b/app/src/processing/app/SerialPlotter.java
index 4cfb9da49..93dc5b662 100644
--- a/app/src/processing/app/SerialPlotter.java
+++ b/app/src/processing/app/SerialPlotter.java
@@ -87,8 +87,10 @@ public class SerialPlotter extends AbstractMonitor {
       minY = Double.POSITIVE_INFINITY;
       maxY = Double.NEGATIVE_INFINITY;
       for(Graph g : graphs) {
-        minY = Math.min(g.buffer.min(), minY);
-        maxY = Math.max(g.buffer.max(), maxY);
+        if (!g.buffer.isEmpty()) {
+          minY = Math.min(g.buffer.min(), minY);
+          maxY = Math.max(g.buffer.max(), maxY);
+        }
       }
 
       final double MIN_DELTA = 10.0;