From db4fffd60047deeea33a7544bb5a39b300323c46 Mon Sep 17 00:00:00 2001
From: Dan Howe <d.howe@wrl.unsw.edu.au>
Date: Wed, 25 Jul 2018 10:40:00 +1000
Subject: [PATCH] Suppress numpy floating point arithmetic warnings

---
 nielsen_volumes.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nielsen_volumes.py b/nielsen_volumes.py
index 858ac58..5f918e1 100644
--- a/nielsen_volumes.py
+++ b/nielsen_volumes.py
@@ -132,7 +132,9 @@ def findZerochainage(chainage0, elevation0, max_beach_slope=5, min_beach_slope=5
     else:
         #find the slope between the last two points
         try:
+            np.seterr(all='ignore')
             beachslope = 1/((elevation0[-2] - elevation0[-1])/(chainage0[-1] - chainage0[-2]))
+            np.seterr(all=None)
         except ZeroDivisionError:
             beachslope= 999
         if beachslope>min_beach_slope: