Shatter curves based on tangent points.

Replies to This Discussion

Permalink Reply by Pieter Segeren on February 20, 2012 at 10:00am

Hi Dominic, just for fun I tried to avoid shatter and subcurve and so on (so many way to approach this..), but did this instead:
hope this helps.

Permalink Reply by Dominic Patel on February 20, 2012 at 1:13pm

thanks Pieter nice method but its not quite right for what im doing, basically im my picture the outer tangents are made with the tanEx component and the internal circle is formed with the tArc component.

i basically need to explode the original circles at the tangent intersection so i can join them to form the floor plates.

im thinkig i might just bake the lines and points and trim it manually as nothing i try seems to work atm

Permalink Reply by Dominic Patel on February 20, 2012 at 1:40pm

actually i solved the problem, i guess more accidentally than anything i had to graft a a tree of the points where the tangent hits the original circles then it could be used as a list to shatter the circles into three segemnts

thanks again for the help

Permalink Reply by Dominic Patel on February 20, 2012 at 1:48pm

ok actually that hasnt worked... not sure why but now it has three circular curves there...

Permalink Reply by Pieter Segeren on February 21, 2012 at 9:32am

You lost me Dominic~: Can you explain more precise what you want, preferably with your definition so far. If you could also model the desired outcome in Rhino and upload that, I bet you'll get an answer.

Permalink Reply by Dominic Patel on February 21, 2012 at 11:40am

that's is what I wanted to do, trim it to make two continuous curves that defined the floor plate.

The tangent arcs that make the void in the centre can be adjusted, so here the shape has changed. I baked it and trimmed it in rhino but I'd be interested to know how to do this in grasshopper, if it is possible.

I'll post the definition as it was then. 

youll just need to create a point in rhino to start

Permalink Reply by Pieter Segeren on February 21, 2012 at 4:36pm

You seem to have forgotten to attach the file, but I think I see what you mean. I just made some additions to what I had before, so its a bit mixed techniques now. Anyway I hope this helps.

Attachments:

• FloorCircles.gh, 9 KB

Permalink Reply by Dominic Patel on February 22, 2012 at 6:23am

i had attached the file at the top, but thanks a lot, that would do the job, a lot neater than how i had done it too, guess im a little in experienced at thie really

thanks again 

Permalink Reply by Pieter Segeren on February 22, 2012 at 2:01pm

Doh! Yes, I found your file now, I can't explain how I missed that ~:)
Thanks, and your welcome.
Also, I think I missed out on the opportunity to use the PolyArc component:

Attachments:

• Floor PolyArc_PSG.gh, 8 KB