Hello @all,
i got a list with horizontal surfaces sorted after their elevation.
some of them are “duplicated” because they have the same height.
Is there a way to get the “unique” surfaces only in a list ?
Kind regards
Kevin
Hi @kevin.scholtyssekM76 you could try get the surface centerpoint and use oootb prune duplicates for filter…or try datashapes prune.geometry…or probably use these numbers you get from sorted keys for sort
hey @sovitek,
i try to sort them by the numbers from the sorted key, but my problem is that i have less key numbers than the list numbers, so i can not match them up… or is there a way i do not know about 
somhow i dont get the right order of the surfaces…
in blue the heights as before and in red as it turns out afterwards…
they should be the same…
hi not sure, did you try prune geometry from datashapes…if you have a small sample rvt, we can take a look
hey, i did it now with unique elements and the GroupByKey Node 
thanks for help
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thats great, i mark your solution 
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