Sort numbers in correct order

Grasshopper
1

Hi. I do want to sort a list of numbers in alphabetical order, means 0,1 … 9, 10,11 … 19,20, … 99, 100, etc, bet instead I do have a list like 1,10,11,etc.

How can I do this kind of sorting?

Sort_Numbers
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Sort_Numbers.gh (7.9 KB)

2

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This is one way

3

You have a tree, not a list.

Flatten the tree and use Sort List for numerical order or Sort Text for alphabetical order - it seems you want the first one with your example.

Sort_Numbers.gh (11.8 KB)

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4

And how I can sort the original data from the Data input? If I do pass that information into the Sort List component I do get an error. My definition was just an attempt to sort the input data.

5

You need to do some text pre processing before you can sort your data.

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6

Unfortunately don’t works with more complicated data.

Sort_Numbers_more.gh (14.0 KB)

8

Actually this example is simpler than your original.

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9

Thank you for this solution. I do figured also by myself using your first definition but using a quite ugly List Item and Concatenate to decompose and recompose the initial data which resulted into a quite big cluster.

10

Hi, is it possible to apply this to data that has letters in it also? I was struggling to apply the above to what Im trying to do. Essentially my end goal is for the list to have the below list read in the correct order.

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11

Hi @Hayden_Payne,

Python to the rescue.

natural_sort.gh (6.0 KB)

– Dale

12

Thanks Dale! That works well. I have another similar one with similar applications but I need to maintain the properties of the Views to be able to place on a sheet but in the natural order? is this possible?

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13

@Hayden_Payne You need the index It would be easier to obtain it within the code but I am still with R7 and can’t acces to the new Script Editor @dale.
Anyway you could find it externally with FindSimilarMember component.

14

@ThomasE - this should work in V7.

natural_sort_v7.gh (6.4 KB)

– Dale

15

Nice. It is possible to add an additional input-output to sort also the geometry IDs correspondingly? I am interested on sorting some geometry IDs by the names of the geometry. Best regards.

16

Thank you @dale For learning purposes, is there any possibility to translate your python to C# using the same logic? :pray:t2: :slightly_smiling_face:

@Cumberland try this.

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sortByName.gh (13 KB)

17

@ThomasE - If you Google, you’ll find lots of examples.

natural_sort_v8.gh (6.0 KB)

– Dale

18

@dale could you please tweak it so that you can sort other list in parallel?

19

Fixed (hopefully) here: Sort a number list which contains text - Grasshopper - McNeel Forum.

For me at least, up to now works as expected.

20

meanwhile you can use Member Index + List Item for that

21

i think it could mess things if i had two identical values to sort and member indices could be somehow mixed up