How to sort surfaces by z coordinates in ghpython

[AndersDeleuran]

See this:

Grasshopper python command combining two if commands

See my reply here for two general methods for sorting in Python based on keys (you’ll want method 1 likely): Also, note that a “safe” method for checking if two values (or points) are identical, is to subtract the two and check that the result is smaller than some acceptable tolerance value (for points, calculate the distance between the two and check this is smaller than your tolerance).

Also, welcome to the forum If this is about GHPython you ought change the category to either Grasshopper Developer or Scripting. And make sure to go through some tips that’ll help you getter answers.