Import: Export tip when body is selected (#24678)

src/Mod/Import/App/CMakeLists.txt

@@ -1,5 +1,6 @@
 set(Import_LIBS
     Part
+    PartDesign
     ${OCC_OCAF_LIBRARIES}
     ${OCC_OCAF_DEBUG_LIBRARIES}
 )

src/Mod/Import/App/ExportOCAF.cpp

@@ -45,6 +45,7 @@
 #include <App/Part.h>
 #include <Mod/Part/App/Interface.h>
 #include <Mod/Part/App/PartFeature.h>
+#include <Mod/PartDesign/App/Body.h>
 
 #include "ExportOCAF.h"
 #include "Tools.h"
@@ -172,6 +173,14 @@ int ExportOCAF::exportObject(App::DocumentObject* obj,
 
         return_label = root_id;
     }
+    if (obj->isDerivedFrom(PartDesign::Body::getClassTypeId())) {
+        PartDesign::Body* body = static_cast<PartDesign::Body*>(obj);
+        App::DocumentObject* tip = body->Tip.getValue();
+        if (tip && tip->isDerivedFrom<Part::Feature>()) {
+            // use the tip instead of the body for export
+            obj = tip;
+        }
+    }
 
     if (obj->isDerivedFrom<Part::Feature>()) {
         Part::Feature* part = static_cast<Part::Feature*>(obj);

src/Mod/Import/App/ExportOCAF2.cpp

@@ -50,6 +50,7 @@
 #include <Mod/Part/App/PartFeature.h>
 #include <Mod/Part/App/Interface.h>
 #include <Mod/Part/App/OCAF/ImportExportSettings.h>
+#include <Mod/PartDesign/App/Body.h>
 
 #include "ExportOCAF2.h"
 
@@ -392,6 +393,16 @@ TDF_Label ExportOCAF2::exportObject(App::DocumentObject* parentObj,
         return {};
     }
 
+    if (obj->isDerivedFrom(PartDesign::Body::getClassTypeId())) {
+        PartDesign::Body* body = static_cast<PartDesign::Body*>(obj);
+        App::DocumentObject* tip = body->Tip.getValue();
+        if (tip) {
+            // keep the shape from the body, but use the tip's colors
+            // by replacing obj with tip
+            obj = tip;
+        }
+    }
+
     // sub may contain more than one hierarchy, e.g. Assembly container may use
     // getSubObjects to skip some hierarchy containing constraints and stuff
     // when exporting. We search for extra '.', and set it as prefix if found.