From 5d3119d48462f6da4f06c92f6132c516db7fdfd6 Mon Sep 17 00:00:00 2001
From: zsloan
Date: Fri, 3 Dec 2021 19:06:49 +0000
Subject: Prevent points prior to the X axis from being displayed in mapping
 figure when zoomed into a sub-range on a chromosome

---
 wqflask/wqflask/marker_regression/display_mapping_results.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wqflask/wqflask/marker_regression/display_mapping_results.py b/wqflask/wqflask/marker_regression/display_mapping_results.py
index 6254b9b9..ead509d7 100644
--- a/wqflask/wqflask/marker_regression/display_mapping_results.py
+++ b/wqflask/wqflask/marker_regression/display_mapping_results.py
@@ -2580,6 +2580,8 @@ class DisplayMappingResults:
                     if self.selectedChr != -1 and qtlresult['Mb'] > endMb:
                         Xc = startPosX + endMb * plotXScale
                     else:
+                        if qtlresult['Mb'] - startMb < 0:
+                            continue
                         Xc = startPosX + (qtlresult['Mb'] - startMb) * plotXScale
 
                 # updated by NL 06-18-2011:
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