How to create an application by extending Open3D functionality and GUI?

[klausbu]

Hello,

I want to create a CFD meshing application that starts with importing CAD geometries and flow domain definitions > creates surface meshes > creates a boundary layer mesh > creates a volume mesh, all based on mainly custom algorithms for mesh creation, smoothing, extrusion.... The CAD import could be based on the Open Asset Import Library (assimp).

What would be the concept of creating such an application based on Open3D including a custom GUI with respect to a menu and icon bar?

I is possible to interact e.g. with mesh patches or feature edges to select them to be able to assign attributes? (thin of a wind tunnel inlet and outlet that needs to be identified and defined by applying an attribute.

For performance reasons, c++ would be used.

BR,

Klaus