From fed7343d2ea8136126084517ade408faaff279f2 Mon Sep 17 00:00:00 2001
From: Karl Wright <DaddyWri@gmail.com>
Date: Wed, 24 May 2017 09:46:15 -0400
Subject: [PATCH] LUCENE-7849: GeoWideLongitudeSlice can fail to construct

---
 .../lucene/spatial3d/geom/GeoWideLongitudeSlice.java      | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lucene/spatial3d/src/java/org/apache/lucene/spatial3d/geom/GeoWideLongitudeSlice.java b/lucene/spatial3d/src/java/org/apache/lucene/spatial3d/geom/GeoWideLongitudeSlice.java
index f208266bd01..705d961eaee 100755
--- a/lucene/spatial3d/src/java/org/apache/lucene/spatial3d/geom/GeoWideLongitudeSlice.java
+++ b/lucene/spatial3d/src/java/org/apache/lucene/spatial3d/geom/GeoWideLongitudeSlice.java
@@ -75,7 +75,13 @@ class GeoWideLongitudeSlice extends GeoBaseBBox {
     while (leftLon > rightLon) {
       rightLon += Math.PI * 2.0;
     }
-    final double middleLon = (leftLon + rightLon) * 0.5;
+    double middleLon = (leftLon + rightLon) * 0.5;
+    while (middleLon > Math.PI) {
+        middleLon -= Math.PI * 2.0;
+    }
+    while (middleLon < -Math.PI) {
+        middleLon += Math.PI * 2.0;
+    }
     this.centerPoint = new GeoPoint(planetModel, 0.0, middleLon);
 
     this.leftPlane = new SidedPlane(centerPoint, cosLeftLon, sinLeftLon);