Specifying Pattern in Copy Sop

[hcs]

I am working on modeling DNA and am using the copy sop to create the repeating spiraling shape of the strands. I am making different shapes for the different pairs, and would like to somehow use copy stamping (or anything really) to have the pairs appear in a specific pattern in the chain. I can easily randomize the pairs, or go through the same ones in order repeatedly, but I cannot think of a way to be able to create a pattern I choose. Any suggestions would be appreciated.

I have attached a very basic test, showing only two possible pairs as different colors and picking which to use randomly.

Thanks!

DNA_Test.hipnc

[sadhu]

One quick soln is to create ramp float parameter on twist(copy) sop in your file, lets call it test.

Create a variable(lets call it chk) in stamp tab of this twist node and set its value to - chramp("test",$CY/$NCY,0) * n (where n is Total no of different pairs you want to copy)

In switch node write following expression - stamp("../Twist", chk, 0)

Now with ramp you can define the pattern.

Edited May 8, 2013 by sadhu