FEM: [skip ci] fix crash in Constraint::getDirection

2021-02-26 08:11:16 +01:00
parent d29fd7d9cb
commit b2ca86d8d7
1 changed files with 4 additions and 0 deletions
--- a/src/Mod/Fem/App/FemConstraint.cpp
+++ b/src/Mod/Fem/App/FemConstraint.cpp
@@ -432,6 +432,10 @@ Base::Vector3d Constraint::getBasePoint(const Base::Vector3d& base, const Base::
 const Base::Vector3d Constraint::getDirection(const App::PropertyLinkSub &direction)
 {
    App::DocumentObject* obj = direction.getValue();
+    if (!obj) {
+        return Base::Vector3d(0,0,0);
+    }
+
    if (obj->getTypeId().isDerivedFrom(App::Line::getClassTypeId())) {
        Base::Vector3d vec(1.0, 0.0, 0.0);
        static_cast<App::Line*>(obj)->Placement.getValue().multVec(vec, vec);