From 1ab891ee35366555521ef5c786f516b25a045a32 Mon Sep 17 00:00:00 2001
From: Guillaume Damiand <guillaume.damiand@liris.cnrs.fr>
Date: Tue, 29 Jun 2021 15:49:05 +0200
Subject: [PATCH] Do not clear pos buffer of clipping plane.

---
 GraphicsView/include/CGAL/Qt/Basic_viewer_qt.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/GraphicsView/include/CGAL/Qt/Basic_viewer_qt.h b/GraphicsView/include/CGAL/Qt/Basic_viewer_qt.h
index 0d44fbc3356..422f5ea7799 100644
--- a/GraphicsView/include/CGAL/Qt/Basic_viewer_qt.h
+++ b/GraphicsView/include/CGAL/Qt/Basic_viewer_qt.h
@@ -245,7 +245,10 @@ public:
   void clear()
   {
     for (unsigned int i=0; i<LAST_INDEX; ++i)
-    { arrays[i].clear(); }
+    {
+      if (i!=POS_CLIPPING_PLANE)
+      { arrays[i].clear(); }
+    }
 
     m_bounding_box=CGAL::Bbox_3();
     m_texts.clear();