From 78994da1995532c5f44e68e28b250e32a8f5eec4 Mon Sep 17 00:00:00 2001
From: Christopher Lackner <clackner@cerbsim.com>
Date: Wed, 19 Mar 2025 17:38:51 +0100
Subject: [PATCH] 1d occ meshes

---
 libsrc/meshing/basegeom.cpp  |  7 +++++++
 libsrc/meshing/meshclass.cpp | 18 ++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/libsrc/meshing/basegeom.cpp b/libsrc/meshing/basegeom.cpp
index c7aae2d5..05d683ff 100644
--- a/libsrc/meshing/basegeom.cpp
+++ b/libsrc/meshing/basegeom.cpp
@@ -1314,6 +1314,13 @@ namespace netgen
     if(multithread.terminate || mparam.perfstepsend <= MESHCONST_MESHEDGES)
       return 0;
 
+    if(dimension == 1)
+      {
+        FinalizeMesh(*mesh);
+        mesh->SetDimension(1);
+        return 0;
+      }
+
     if (mparam.perfstepsstart <= MESHCONST_MESHSURFACE)
       {
         MeshSurface(*mesh, mparam);
diff --git a/libsrc/meshing/meshclass.cpp b/libsrc/meshing/meshclass.cpp
index cecce6cd..f18261c8 100644
--- a/libsrc/meshing/meshclass.cpp
+++ b/libsrc/meshing/meshclass.cpp
@@ -4819,6 +4819,24 @@ namespace netgen
         for (auto & seg : LineSegments())
           seg.si = seg.edgenr;
       }
+    if (dimension == 3 && dim == 1)
+      {
+        for(auto str : materials)
+          delete str;
+        materials.SetSize(0);
+        for(auto str : bcnames)
+          delete str;
+        bcnames.SetSize(0);
+        for(auto str: cd2names)
+          {
+            cout << "found material = " << *str << endl;
+            materials.Append(str);
+          }
+        cd2names.SetSize(0);
+        for(auto str : cd3names)
+          bcnames.Append(str);
+        cd3names.SetSize(0);
+      }
     dimension = dim;
   }