Helix
eharetea

Use trigonometry to create a helix!

Math and Houdini.

Date Created:Friday January 19th, 2007 10:05 PM
Date Modified:Saturday August 02nd, 2008 11:25 AM

Helix - test.3daet.com

Helix

Based on a $ROWS*$COLS grid
x pos = cos($F)*sinh($V)*sin($U)+sin($F)*cosh($V)*cos($U)
y pos = -cos($F)*sinh($V)*cos($U)+sin($F)*cosh($V)*sin($U)
z pos = $PI/180*$U*cos($F)+$V*sin($F)
floor($PT/$ROWS)/($COLS -1)*360-180
$V = frac($PT/$ROWS)*$ROWS/($COLS-1)*4-2