In a previous post, I showed how OpenLayers could display Autocad Files. OpenLayers, using an Image Layer, can also display an Ortho of your model. While I would prefer a 3D PDF, this may have its uses.
Here is the Revit model as a web map.
I took 3 shots of a Revit model and added two points. I used a blank white image as the background, a full model layer – which is active at the start, a layer with no walls, and a frame layer. By clicking down the layers, you can remove pieces of the building. I did not fix resolutions in my code, but the images can be more crisp. Here is a shot with the Frame Layer turned on.
To see the map live go to my website:
http://educationalfacilityplanning.com/3DOpenLayers.html
Architecture and Planning 
Thank you for this posting, I am developing a similar stuff for my project using Open layers, java script and postgreSQL. My objective is to populate the database with the geometric data such as point, polygons and line drawn on the Google
Please I would appreciate to get some help on this as I am stuck. My database is not populating when I draw the polygon on the map. I am willing to pay some money to get help for completion of this project.
thanks
The only way I can think of doing this would be to catch the user input as they draw (coordinates) and pass them to a function that runs an insert to the database.