From 118b7aa0cc945fae0803fdfcb65079ba0ebd8db0 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sat, 8 Jan 2022 13:48:01 +0100
Subject: [PATCH] Sketcher: improve exception handling * if determining the
 normal raises an exception then fall back to a default value * when handling
 a Base::Exception then call its ReportException() function to get as much
 information as possible

---
 src/Mod/Sketcher/Gui/EditModeConstraintCoinManager.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Sketcher/Gui/EditModeConstraintCoinManager.cpp b/src/Mod/Sketcher/Gui/EditModeConstraintCoinManager.cpp
index 61be445d6a..2c24a81657 100644
--- a/src/Mod/Sketcher/Gui/EditModeConstraintCoinManager.cpp
+++ b/src/Mod/Sketcher/Gui/EditModeConstraintCoinManager.cpp
@@ -171,8 +171,13 @@ Restart:
         auto curve = dynamic_cast<const Part::GeomCurve *>(geom);
 
         Base::Vector3d normal;
-        if(!(curve && curve->normalAt(pointoncurve, normal))) {
+        try {
+            if(!(curve && curve->normalAt(pointoncurve, normal))) {
                 normal = Base::Vector3d(1,0,0);
+            }
+        }
+        catch (const Base::CADKernelError&) {
+            normal = Base::Vector3d(1,0,0);
         }
 
         return normal;
@@ -1177,6 +1182,7 @@ Restart:
 
         } catch (Base::Exception &e) {
             Base::Console().Error("Exception during draw: %s\n", e.what());
+            e.ReportException();
         } catch (...){
             Base::Console().Error("Exception during draw: unknown\n");
         }