Combining Google Maps, photogrammetry and pointcloud into Revit

I guess I have a hang up on photogrammetry lately. But I enjoy the way you can move data quickly in an effortless operation.

Google Maps is getting better and better, and to be honest I am really amazed how you can view an entire city in great detail. We use Google Maps in our office to investigate exciting sites and surroundings, and I have thought that it would have been valuable to import this information into Revit.

And guess what, by using photogrammetry I made it happen:)

In short:

  • open google maps in full screen and find your building site
  • rotate the view around your site meanwhile you press «print screen» as often as you wish
  • with dropbox installed, the «print screens» should be perfectly downloaded automatically
  • you should crop your photos to get rid of unwanted text/labels. You can do this by making an «action» in Photoshop and then choose «File» – «Scripts» – «Image Processor» to crop every photos in a folder
  • then you make a mesh in Memento with your cropped photos and export it in RCP
  • import it into Revit and enjoy

PS! For fun, I also tried to do photogrammetry with Google Streetview. It was not successful but I will try again later. I do have some ideas:)

Reklamer

Revit Training#1: Pointcloud and coordinate system

One of the questions I get a lot, is how to set the coordinate system in a project and how to import the pointcloud at the correct position.

There are several ways of doing this, and it is up to you to find your best way. The video gives an introduction of the consepts:

  • importing a DWG that has world coordinates
  • setting up two coordinate system (one with real world coordinates and one internal)
  • importing pointcloud that has the same 0 point as the internal coordinate system