Can create icosphere and control the 3 sides of triangle to 2 meters. When i do only the density of icosphere can control.
TRIANGLE PATTERN1.gh (9.0 KB)
Perhaps I don’t understand your question but why bother using Mesh Edges 
TRIANGLE PATTERN_2026Feb27a.gh (5.7 KB)
Especially from a plugin 
Standard GH Mesh Edges works fine, eh?