Filter List for Unplaced Rooms

Lists-Logic
1

Thank you for taking a look:

I am trying to eliminate unplaced Rooms, ones that are not in the model, from a list of room properties. My approach is to find Rooms with an Area value of Null and then omit them since the Area is Null for Rooms that are not placed.

I have a list of lists. Each sublist is a Room and it contains the values for 9 room parameters. Index 4 of each Room (sublist) is Area. I want to remove the Rooms with null areas from the main list.

Note in the attached Dynamo workspace:
The list of Rooms is in a Watch Node labeled “LIST OF ROOM PARAMETER VALUES”

This link is to a method, it is Vikram’s post at the end of the thread, that looks promising from a previous thread:
http://dynamobim.org/forums/topic/filter-a-list/

Capture.png1249×570 384 KB

2

Your screenshot is unclear. Recommend to reduce the problem to its minimum and re-post.

3

The image has been reposted, thanks for letting me know.

Daniel

4

Something like this?:

image.jpg848×493 167 KB

5

Thank you so much, that is perfect. I have been wondering what the arrow
next to the input node was for. One small step for this project, but a big
conceptual step for me today thanks again.

Daniel

Daniel Glazer RA LEED AP

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