Formula to create a harmonograph

HI guys , I am trying to fit in a formula for harmonograph in grasshopper but didn't seen to get it right . Needed some advise to recreate the formula on this link : http://eat-a-bug.blogspot.co.uk/2009/03/harmonograph.html

Attachments:

test-harmonograph.gh, 11 KB
Screen Shot 2016-10-03 at 8.26.34 PM.png, 198 KB
Screen Shot 2016-10-03 at 7.13.34 PM.png, 15 KB

Replies to This Discussion

Permalink Reply by Laurent DELRIEU on October 3, 2016 at 2:53pm

Hello,

I change the algorithm with Wikipedia one.

https://en.wikipedia.org/wiki/Harmonograph

wx(t) doesn't work because wx is not an equation it is a double. You could write wx*t.

Attachments:

testharmonograph_LD.gh, 15 KB

Permalink Reply by Laurent DELRIEU on October 3, 2016 at 3:11pm

Update with sliders, frequencies are the more difficult to master

Attachments:

Canvas at 23;09;17.png, 303 KB
testharmonograph_LD2.gh, 17 KB

Permalink Reply by Christine Cai on October 3, 2016 at 3:46pm

gosh ! Thanks a million !!

And using your grasshopper , I can make it 3rd dimensional by adjusting the phase.

Permalink Reply by Christine Cai on October 4, 2016 at 10:12am

Hi Laurent , Is it possible to put on the Z out put for both lateral and rectilinear motion ?

Currently I could only chose either to input the lateral motion formula or rectilinear motion formula on Z output on 'contract point' component , which doesn't quite reflect quite accurately if I were to build the structure to reflect a an tone on a 3dimensional aspect.

Permalink Reply by Laurent DELRIEU on October 4, 2016 at 3:26pm

I don't really understand
If the question is : is it possible to go full 3D ? The answer is yes, duplicate sliders and formula. It is good to show your definitions for particular questions. Grasshopper is not limited it is our imagination
Best regards

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