Things I don't understand: flattening with SimplexNoise

Hello, this afternoon i've tried to make tests for some surfaces with Perlin and Simplex Noise but i've found some strange things that i just don't understand the logic behind.

I'm making a grid of points with a serie and the construct point component after i put my points in the SimplexNoise component, remap the numbers it gives me and move my points by those distances on Z. When i flatten my points directly on the contructPoint components, it gives a nice smooth result but when i use the flatten component it gives an ugly 2dimentional result. WHY ?

It'll be more clear with those pictures:

Attachments:

PerlinTest1.gh, 20 KB

Replies to This Discussion

Permalink Reply by Mateusz Zwierzycki on February 8, 2015 at 8:16pm

Take a look at http://www.grasshopper3d.com/forum/topics/the-why-and-how-of-data-t...

EDIT : Flattening means that you put all the geometry/data into one data branch. If that doesn't correspond with the data tree, things like yours happens.

Permalink Reply by ng5 Alex on February 9, 2015 at 1:38am

Hello

i am puzzled by this too. in this screenshot it seems like flattening with right click and using flatten component produces different outcome, when flattening is supposed to put all data from tree structure to a single list without changing the structure and with the component giving an extra option about the branch path of the list, so the outcome was supposed to be the same right?

Permalink Reply by Nenov Ivo on February 9, 2015 at 2:28am

Yes, and the outcome is different ! Very nice article Mateusz but i'm already a little bit familiarised with lists and and i'm asking this question because the result is just very weird...

Permalink Reply by Nenov Ivo on February 9, 2015 at 2:39am

Hehe, just a big mistake, i put the points from the grid directly in the move components and forget to flatten them too. Sorry, too tired last night, i'll close the discussion...

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