Space number to duct network concatenate Nodes

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Revit has a built in function that can let you know in which
space an air terminal is located. Rhythm has a great node:
‘Element.Space’ for this. Unfortunately most other elements
that you’d like associated with a space don’t have access to
this space information. The node ‘Space number to network
concatenate’ can assign the air terminal’s space number to
every upstream element in the connected duct network. While
traversing it will concatenate every space number into the
parameter with a comma.

The node will stop traversing once it can no longer find an
opposing flow direction, encounters a different system
classification, encounters an element it has already
encountered (and thus has entered some kind of loop) or there
is nothing connected to the current element.

space-number-to-duct-network-concat

Inputs:

  • Air terminal: the starting air terminals from where
    the traversal into the duct network will start.
  • ParameterName: the parameter of the elements in the duct
    network to which the space numbers will be written to.
  • Category: only elements of these categories will have their
    parameter written to. Supports multiple categories.
  • SizeLimitFactor: an optional input that controls how far
    into the network the parameters will be written. The node will
    stop when the element’s size in the network is
    ‘factor’ times as big as the starting size. The…



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