Does anyone know how to construct this shape in gh?
Please upload what you have already. Internalise into a .gh file.
As a general guide, I’d focus on determining the medial axis.
The whole process could be roughly as follows:
- Draw a flat outline of the shape you’re interested in.
- Use the medial axis/emboss shape methods to obtain the 3D geometry.
- Depending on whether the 3D geometry is Brep or Mesh, use the appropriate method to cut off the top using solid difference.
- Convert the geometry to a mesh. You may need to apply some remeshing to obtain a fairly dense and uniform mesh.
- Apply mesh smoothing methods.
The most difficult step is step 2, but I think you can successfully use some of the methods created by Laurent Delrieu.