From: svenster
Hi. How can I create a helix on an arc with increasing and decreasing rate of change ? In other words instead having a linear helix between start radius and end radius can I have a radius that follows the curve of an arc ? In other words imagine a spherical dome, how can I get the spiral to follow the dome from base to apex.
Sven
From: Michael Gibson
Hi Sven, is this what you're looking for? :
That was made by drawing in an arc like this:
Then using the Transform > Deform > Twist command to twist it around the z axis with an Angle value of 1800 degrees.
- Michael
Image Attachments:
sphere_helix1.jpg
sphere_helix2.jpg
From: svenster
Yes, Exactly! Thanks for quick response Michael.
Sven
From: Michael Gibson
Great, you're welcome Sven!
Basically the Transform > Deform > Twist command does its work by transforming points onto a helix. So it can be used to sort of helix-ize a curve like this.
- Michael
