3 d axis
rhian.lewis at mcr1.poptel.org.uk
Sat Oct 21 21:02:54 UTC 2000
r(theta) = R cos theta i + R sin theta j + C theta is a general helix
curve passing through three dimensional space.
Rather than trying to explain the problems I am having, and spending weeks
trying to decipher this B3D code I thought I would ask for help . I have
looked at B3DMorph, and although I understand in principal the structure of
the code, I am still finding it dificult to interact with the B3D renderer.
Has anyone had experience representing such curves using Squeak, or maybe
have some worked examples of representations of other 3D objects, eg
spheres, cones etc. How do I actually get the real points into the
rederer? and how do you go about getting a representation of a 3D axis in
the middle of the screen. I would kind of like a transparent cube in the
center of the sceen in which to place objects. As you can see I am lost.
My helix is r (theta) = 2 cos theta i + 2 sin theta j + 0.3 theta k.
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