From 5a6ad7edd2f82d39cfaeb652097e930f59ccd651 Mon Sep 17 00:00:00 2001
From: Xuan <liuxuan30@gmail.com>
Date: Mon, 8 Jan 2018 09:32:17 +0800
Subject: [PATCH] Fix axis label disappear when zooming in deep enough (#3132)

---
 Source/Charts/Renderers/AxisRendererBase.swift | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Source/Charts/Renderers/AxisRendererBase.swift b/Source/Charts/Renderers/AxisRendererBase.swift
index 14cd25ee4d..15a9206e51 100644
--- a/Source/Charts/Renderers/AxisRendererBase.swift
+++ b/Source/Charts/Renderers/AxisRendererBase.swift
@@ -164,7 +164,11 @@ open class AxisRendererBase: Renderer
                     n += 1
                 }
             }
-            
+            else if last == first && n == 0
+            {
+                n = 1
+            }
+
             // Ensure stops contains at least n elements.
             axis.entries.removeAll(keepingCapacity: true)
             axis.entries.reserveCapacity(labelCount)