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How to set a Random Rotation? / Reflection

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2urn

16 Dec, 2012 10:52 PM

Nodebox beginner, here:

I have svg shapes representing tiles in an overlapping grid-based array.
The tiles can be oriented up to 8 different ways:

• Rotation Angle: 0, 90, 180, 270 (which I've figured out how to generate from Angle and Range Nodes)
• Side: Front or Back  (basically a boolean)

But I can't figure out how to randomly pick from the 4 possible angles and 2 sides.
I've tried Shuffle->First1 but the shuffle result is always constant unless I vary the seed manually which defeats the point of a random output.

How do I randomly select 1 from my ranges?

Much appreciated,
Dimitry

1. 1 Posted by 2urn on 17 Dec, 2012 12:29 AM

   

   Here is test image for where I'm stuck--all arrows have same orientation instead of what is desired (above).

   • 2urn-clip-0546.jpg 57.8 KB
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2. 2 Posted by diki on 18 Dec, 2012 07:19 PM

   

   I think it might be a problem of where you put the shuffle/rotate node -
   e.g. at the 'top' of a 'chain', it will only influence the source geometry (all arrows will have the same orientation), while at the 'bottom', it can influence every arrow in the grid -
   well, that is a bit hard to explain :P

   But I came up with an example, see the attached screenshot & .nbx

   • rotation.png 56.9 KB
   • random-rotation.ndbx 2.46 KB
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3. Frederik De Bleser closed this discussion on 21 Jan, 2013 01:38 PM.