creation of workplane-based, level-bound fix part 2

BHoM · Jun 21, 2023 · 0a03dae · 0a03dae
1 parent 0ce616f
commit 0a03dae
Showing 1 changed file with 13 additions and 3 deletions.
diff --git a/Revit_Core_Engine/Create/FamilyInstance/FamilyInstance.cs b/Revit_Core_Engine/Create/FamilyInstance/FamilyInstance.cs
@@ -412,16 +412,26 @@ private static FamilyInstance FamilyInstance_WorkPlaneBased(Document document, F
         {
             if (host != null)
             {
+                XYZ location;
                 Reference reference;
                 bool closest;
 
                 RevitLinkInstance linkInstance = null;
                 if (document.PathName != host.Document.PathName)
                     linkInstance = document.LinkInstance(host.Document.Title);
 
-                XYZ location = host.ClosestPointOn(origin, out reference, out closest, orientation?.BasisZ, linkInstance, settings);
-                if (location == null || reference == null)
-                    return null;
+                if (host is Level)
+                {
+                    location = origin;
+                    reference = ((Level)host).GetPlaneReference();
+                    closest = true;
+                }
+                else
+                {
+                    location = host.ClosestPointOn(origin, out reference, out closest, orientation?.BasisZ, linkInstance, settings);
+                    if (location == null || reference == null)
+                        return null;
+                }
 
                 XYZ refDir = XYZ.BasisX;
                 if (orientation?.BasisX != null)