Selecting triangles

Dear my friends
I want to select rows from top to bottom or inverse.

07.Selecting Triangles.3dm (71.4 KB)
07.Selecting (4.6 KB)

if you think you can have these triangles with the better algorithm you can change my algorithm.

Why don’t you useTriGrid instead? (10.2 KB)

Dear HS_Kim
I am very happy to see you again.
Thank you very much for your help.

1st. I want to apply a scale command from top to bottom with range (like gradient form and the color is not important).
2nd. it is very important to use my basic triangle curve.

07.Selecting (13.3 KB)


Thank you very much

We received to goal but i think this algorithm is too long.
Is there any way to decrease it?