Rectangle to Surface

In this Grasshopper Script, You can convert a rectangle (or any 4-sided polygon) to a Nurbs surface and then extract the U, V Curves.


  • Rectangle: The Base Rectangle for converting to Surface
  • T0: A number between 0 to 0.5
  • Height: Height of the openings
  • U: Number of U Curves
  • V: Number of V Curves



  • Surface: Final Nurbs Surface
  • U Curves: Extracted U curves
  • V Curves: Extracted V curves

Simply copy & Paste the “Parametric House” Folder in :  “File” > “Special Folders”  > “User Object Folder”

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