The original model. The non-manifold curves resulting from application of the intersection algorithm. The  non-manifold curves can be resolved by identifying and deleting the interior surfaces.   Most of the feature curves (in blue) are created based on the dihedral angle between  facets. Different feature angles can be used in different parts of the model. Along the  upper surface of the top wing, a feature curve (line) is manually created from the end  nodes. After the mesh has been coarsened to get rid of all the extremely small edges created by  the intersection calculation, uniform refinement is applied to the model.  Sopwith Camel This STL model of a Sopwith Camel consists of 168 disconnected surfaces. The goal here is to produce a high  quality surface mesh with triangles as equilateral as the topology will allow. With DGK, we are able to  resolve the intersections, construct feature curves to preserve important features and remove excessively  small edges. The mesh is then refined to the specified size.  Copyright 2012 Discretize Inc. Examples Videos Questions? Our Xtl app, built on DGK, was selected as Desktop Engineering’s Editors Pick of the week for July 6 2011