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Revit Pull in Grasshopper

Note: Before reading this page, it is recommended to have a look at Using the BHoM section.

Important: on the first run it may happen that pull will fail with connection error – simply refreshing active to true should help in that case.

Having the Revit adapter set up, one can start interacting with Revit. Pull behaves like a standard Grasshopper component, so can be placed on canvas with a standard double left click action. Request, on the other hand, is a solely BHoM type, therefore it is easiest to invoke it with Ctrl+Shift+B menu, with an alternative of using either CreateRequest or CreateObject component.

The example below shows a simple exercise of pulling all Revit elements that can be converted into BHoM IFramingElements (which capture both columns and framing). There is a few details that might be worth noticing:

  • FilterByBHoMType expects a type and not an instance. In Revit language, the user is expected to provide a element type and not the element itself. Therefore, CreateType component is being used.
  • Explode is a general use component that allows to quickly see all properties of any BHoM object. It is very useful and can be applied almost anywhere.
  • Pull will not run as long as it is not activated (active == true).
  • The pull component is turning orange indicating that it threw a warning. That is often acceptable, although should never be left unnoticed.

Pull in Grasshopper

More examples is available in Pull examples page.