From 72a715753853267f3513cae799ccca831f4f9b29 Mon Sep 17 00:00:00 2001
From: Alexander Manakov <kokokostation@gmail.com>
Date: Fri, 4 Aug 2017 13:56:37 +0300
Subject: [PATCH] Added essential if.

---
 pyqtgraph/graphicsItems/ScatterPlotItem.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pyqtgraph/graphicsItems/ScatterPlotItem.py b/pyqtgraph/graphicsItems/ScatterPlotItem.py
index 597491f3..f426c91c 100644
--- a/pyqtgraph/graphicsItems/ScatterPlotItem.py
+++ b/pyqtgraph/graphicsItems/ScatterPlotItem.py
@@ -648,6 +648,9 @@ class ScatterPlotItem(GraphicsObject):
             d = d[mask]
             d2 = d2[mask]
 
+            if d.size == 0:
+                return (None, None)
+
         if frac >= 1.0:
             self.bounds[ax] = (np.nanmin(d) - self._maxSpotWidth*0.7072, np.nanmax(d) + self._maxSpotWidth*0.7072)
             return self.bounds[ax]