How to split list based on text length

Grasshopper
1

I am working on an IFC import, from a certain type of element I need to get the names, but only the ones of a text length of 49 characters. How can i split this list based on text length?

2

You can just use Character counts:

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image2236×583 60.6 KB

filter_by_text_length.gh (6.7 KB)

3

you can use a component called (list length) to identify the number of characters for each text then use (member index) and insert (49) to member input, then insert the final list to list item.

02
02835×275 15.1 KB

1 Like
4

Using @seltzdesign’s definition as a base, here is another option using Python:

import ghpythonlib.treehelpers as th

splti = []

for i,j in enumerate(x):
    if len(j) == 49:
        splti.append(i)

splti.append(len(x))

l1 = list(splti)
l1.pop(-1)
l2 = list(splti)
l2.pop(0)

a = th.list_to_tree([x[i:j] for i,j in zip(l1,l2)])

image
image2520×1542 262 KB

If you are looking for something specific in the IFC text, you could also do something like:

if "IFCSHAPEREPRESENTATION" in j:

Rather than looking for the string length.