From 7fdfdcde491a6085b232b6ac72717fb403c6b15e Mon Sep 17 00:00:00 2001
From: Jolbas <39026960+Jolbas@users.noreply.github.com>
Date: Tue, 30 May 2023 18:14:43 +0200
Subject: [PATCH] Fix clipping near camera in orthogonal view

Fix #6836
---
 src/Gui/NavigationStyle.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Gui/NavigationStyle.cpp b/src/Gui/NavigationStyle.cpp
index b34ee7682b..a63abb399c 100644
--- a/src/Gui/NavigationStyle.cpp
+++ b/src/Gui/NavigationStyle.cpp
@@ -622,7 +622,10 @@ void NavigationStyle::reorientCamera(SoCamera * cam, const SbRotation & rot)
 
     // Set new orientation value by accumulating the new rotation.
     cam->orientation = rot * cam->orientation.getValue();
-
+    // Fix issue with near clipping in orthogonal view
+    if (cam->getTypeId().isDerivedFrom(SoOrthographicCamera::getClassTypeId())) {
+        cam->focalDistance = static_cast<SoOrthographicCamera*>(cam)->height;
+    }
     // Reposition camera so we are still pointing at the same old focal point.
     cam->orientation.getValue().multVec(SbVec3f(0, 0, -1), direction);
     cam->position = focalpoint - cam->focalDistance.getValue() * direction;