Randolph Fritz's Page

"Thanks!"

"+ now you know why it's hard to find answers on this question. Opinions are strongly held, and solid information is scarce on the ground."

"Regarding number 7. this might help."

"Ah. Finally figured out how to upload a script--as an attachment. So here it is, for anyone who is interested. A few notes on the script: To iterate through the blind positions, I used an integer slider with animate--this was the only way I found…"

"Python is vendor-independent and available across many platforms; C# is a proprietary Microsoft language. If you want your scripts to have a chance of working on Macs, Python is the better choice. Generally, Python is the more concise language, and…"

"I got it working; here's my notes and my code. (Crossposted to python.rhino3d.com) To iterate through the blind positions, I used an integer slider with animate--this was the only way I found to do it. I converted my spreadsheet of (angle,…"

"I'll give that a try."

"make a slider that selects a given pair, using the index of the pair. connect everything so that it will bake the selected pair right click on your selection slider and go to "Animate""

"...or if(x=0,0,x/abs(x)) ......"

"Try to use  if(x<0,-1,0)+if(x>0,1,0) , why would be not ...."

"A very late note in this chain; this is called the "signum" function, usually denoted "sgn," though some computer languages make it "sign." See http://www.mathworks.com/help/techdoc/ref/sign.html…"

"I was thinking more of the more modern sign() function, where:                    -1 if x < 0 sign(x) =        0 if x = 0              …"

"Thanks."

"I think it refers to the SIGN transfer function of Fortran days. Where you could specify two variables Sign(x,y) which would change the sign of x if y was different. eg sign(1,2) = 1 sign(1,-2) = -1 sign(-1,2) = 1 sign(-1,-2) = -1"