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I'm looking to make a SaaS app using .dwg files. The user will import a floor plan of a room and my algo will calculate the best way to install floor heating cable. I never use Autocad and I'm wondering how I can extract the principal geometry of my plan. I'm open to any language even if I prefer javascript. Thanks for your help.

Antoine L.
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In fact there are some webservices available via Autodesk Forge. You can use Design Automation API to process a .dwg file. It's accessible via REST protocols, so you can call from JavaScript/NodeJS, for instance.

To take full advantage of Design Automation API for .DWG, you can write a .DLL plugin (with .NET) that will perform complex tasks on the file, but note that the .dwg file contains basic geometry, so you may need to interpret it.

Check out some samples on GitHub.

Augusto Goncalves
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  • The cost of the API is too expensive for my project. I've like 100 floor plan/month to analyse and 400$/month is too much... – Antoine L. Jun 21 '16 at 17:09
  • Thanks for the feedback, I would like to hear more about it. Can you reach me by email? It's my first name DOT last name @autodesk.com. – Augusto Goncalves Jun 21 '16 at 17:38
  • just sent you an email ! – Antoine L. Jun 21 '16 at 17:59
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    Note that the free tier includes 1 hour of processing time per month. How do you know that is not enough to process your 100 drawings/month? Let's say a drawing takes 20 seconds then you will burn 100*20s = 34 minutes, well within the free tier. – Albert Szilvasy Jun 24 '16 at 16:46