limiting the angle of rotation

hi guys

this is just my first week using grasshopper. been trying to create an undulating brick masonry with the help of attractor points.

So, with the help of some tutorials i am able to control the rotation with attractor points. but, as it is a masonry i want to limit the angle of rotation such that the bricks start to interlock and not hang in air as it is now.

i dont know if u could use a function, evn if i could i dont know how to write that.

need some urgent help guys.

thanks

vipul

Replies to This Discussion

Permalink Reply by David Rutten on July 31, 2011 at 4:54am

Hi Vipul,

you could use an Expression for this, or you could use the Min and Max components. So if your rotation is not supposed to exceed 25 degrees, then you can feed your angle (provided it is also specified in degrees) into a Min component, where the B value is +25. Then feed the result into a Max component where the B value is -25.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Andy Payne on July 31, 2011 at 6:07am

Firefly has a constrain component which allows you to specify a domain (lower and upper limit) which you want to clamp or 'constrain' a number. It works the same way as suggested above, just in one step.

Permalink Reply by Vipul Verma on July 31, 2011 at 12:42pm

hey

thanks for you suggestions

bt instead of using an attractor point to rotate the bricks. i created a new defination. in which i am able to control rotation of the brick group and the individual bricks, with the help of 2 points. the lower one contros the rotation of the whole group and the upper one controls the rotation of the bricks.

I plan to repeat the groups and keep changing the rotation with the help of the points.

But i want to copy it on a set of points along a divided curve so as to create a masonry, only individuals bricks are copied, and also not able to control the its rotation separately.

let me know where i am going wrong.

thanks

vipul

Permalink Reply by Dedackelzucht on August 2, 2011 at 1:39am