While it could be the least expensive of the methods it is generally a lot less accurate, requires something that allows you to scale the photos properly either on site measurements, existing plot plan, or CAD floor plan and any real details will not be included. This requires getting oblique images from a source such as bing maps or Pictometry, that then can then be scaled and traced over in Revit. First, let’s look briefly at the current technologies and how they work. However, the most important task is choosing the right tool for the job and usually this is driven by the scope of the project/deliverable, what the model is going to be used for, and conditions and access of the building. PKNail allows a user to survey and model directly in Revit. As it stands the 4 available today are:Īll of these technologies with the exception of PKNail, yes I do have a horse in this race, require a user to extract geometry from one program and draft in another. I was at the recent Autodesk University in Las Vegas and sat in the session for Reality Capture for Rapid Energy Modeling by Jess Miller who discussed the current technologies and work flows to document existing buildings digitally in Revit.
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