https://communities.bentley.com/products/microstation/f/microstation-forum/104461/combining-large-meshesI have two large meshes ( a bathymetry and a topography) that I would like to merge into a single mesh. I&#39;m using v8i SS3. I can stitch them together but there is a gap in the mesh where the two meshes didn&#39;t overlap. I&#39;ve tried several methods of fillingen-USTelligent Community 12https://communities.bentley.com/thread/313454?ContentTypeID=1Fri, 06 Feb 2015 02:31:22 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:71f4a54d-d453-4077-82b1-36981cbf1bc2Ben ModraExtract Boundary and Mesh from Points worked (almost) perfectly. Thanks Ron!<div style="clear:both;"></div>https://communities.bentley.com/thread/313447?ContentTypeID=1Thu, 05 Feb 2015 23:09:32 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:b4d7e5ed-55c7-44f3-be8b-b77d8399d382Ron JonesHi Ben,<br /> If the gap is an enclosed area you could try using the Close Mesh Voids command. <br /> <br /> You could also try using the Extract Boundary command to extract segments of the boundary of each mesh at the area of the gap. Use the boundary segments to create a mesh that fills the gap with the Mesh from Contours, Mesh from Points, or Mesh from Two Curves commands.<div style="clear:both;"></div>