Fix for #19707 : fatal error gp_Dir() input vector has zero norm when loading python...

[modules/shaper.git] / src / Model / Model_Update.cpp

diff --git a/src/Model/Model_Update.cpp b/src/Model/Model_Update.cpp
index 659b7ca9a2764290a121241f5f7ea5da83cba458..bd9c7bfdad39d8b92a2e3ee80ea925be6c1dae71 100644 (file)
--- a/src/Model/Model_Update.cpp
+++ b/src/Model/Model_Update.cpp
@@ -904,6 +904,13 @@ void Model_Update::updateArguments(FeaturePtr theFeature) {
       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
       if (isObligatory)
         aState = ModelAPI_StateInvalidArgument;
+    } else if (theFeature->getKind() == "Sketch" && aSel->id() == "External" &&
+               aSel->isInitialized()) {
+      // #19703 : if sketch plane was selected, but after context disappears, it must become invalid
+      aSel->update();
+      if (aSel->isInvalid()) {
+          aState = ModelAPI_StateInvalidArgument;
+      }
     }
   }
   // update the selection list attributes if any