Thank you for your valuable help esp. that your forum is the only source of help concerning Navisworks development. i had two approaches in mind to communicate Navisworks model and manipulate it programtically 1) to connect nwd model opend in Navisworks then manipulating such model (for example clicking a Reactor name in my application to see it selected in Navisworks model) but i couldn't find any guide or sample application to implement this approach 2) Second approach is to include "ViewControl" in my application using Autodesk.Navisworks.Api as per WPFViewer included with Navisworks SDK and i managed to implement my target by selecting a system in the plant and by clicking a button i can see it selected ViewControl but the problem is when i tried to include the zoom, Pan, orbit, ... functions like Navigation Wheel toolbar in Navisworks with the help with code from your forum they were very rudimentary and it was very difficult to Orbit, Pan, ....etc.
Consequently and due to our dependence on your very valuable and helpful forum kindly we need to your help either to get more elaborate code so we can integerate zooming, panning, orbiting, walking, .. functionality to the ViewControl like that of navigating wheel, or guide us to the other approach : to connect model opened in Navisworks and send it message form my Application.
Appreciate your help