Demo 19
This object is a cooler head; the model can be found in the INRIA model repository as a .mesh file, and is opened in Gmsh. It is saved as a .stl file and imported into Blender. Its title is “Ghs3dDS,” (See References). The usual Tris-to-Quads and Partial Dissolve commands are given. The pipes and body are both of single element thickness.
This object is a cooler head; the model can be found in the INRIA model repository as a .mesh file, and is opened in Gmsh. It is saved as a .stl file and imported into Blender. Its title is “Ghs3dDS,” (See References). The usual Tris-to-Quads and Partial Dissolve commands are given. The pipes and body are both of single element thickness.
We separate the pipes, cut the mesh in half, and remove the bottom surface. The Tris-to-Quads command does not remove all the triangles, and we finish the operation, edge-sliding the vertices and using the knife tool. Now that we have a single layer, of manifold mesh, we can try using the Shrinkwrap modifier to conform it to the contour of the original surface. The view shown is of both surfaces, after the modifier has been applied. In the case of this model, insufficient quad density limits the usefulness of shrinkwrapping.
To get the new bottom surface, we Extrude Individual to maintain a normal extrusion direction. The surface curvature is great enough to preclude using the Remove Doubles command to join the separated vertices on the bottom surface, and we must resort to merging the vertices by hand.
Using the edges lining the penetration, we extrude a new pipe along the z-axis.
At this time we rebuild the lower flange of the body.
At this time we rebuild the lower flange of the body.
We use the Region (Vertex Normal) command to extrude the outer circle of vertical faces and thus construct the pipe flange.
The final mesh meets Verdict standards for the Scaled Jacobian criterion.
The final quality is also acceptable according to the Verdict standard for Diagonal measure.
The final mesh contains 2001 elements and 4185 nodes.
