Cycling 74 » Topic: problem with geometry expression from Paul Bourke http://cycling74.com/forums/topic/problem-with-geometry-expression-from-paul-bourke/feed Thu, 20 Jun 2013 04:46:46 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/problem-with-geometry-expression-from-paul-bourke/#post-48884 <![CDATA[problem with geometry expression from Paul Bourke]]> http://cycling74.com/forums/topic/problem-with-geometry-expression-from-paul-bourke/#post-48884 Wed, 03 Mar 2010 18:24:40 +0000 Ad. Here’s the limpet torus equation from paul bourke’s geometry

x = cos(u) / [sqrt(2) + sin(v)]
y = sin(u) / [sqrt(2) + sin(v)]
z = 1 / [sqrt(2) + cos(v)]

And here’s my expr object:

jit.expr @expr “cos(snorm[0])/(sqrt(2)+(sin(snorm[0]))” “sin(snorm[0])/(sqrt(2)+(sin(snorm[0]))” “1/(sqrt(2)+ cos(snorm[0]))”

What am I doing wrong ? the result is kind of little curve…snif…

Thx.
Ad

]]> http://cycling74.com/forums/topic/problem-with-geometry-expression-from-paul-bourke/#post-175653 <![CDATA[Re: problem with geometry expression from Paul Bourke]]> http://cycling74.com/forums/topic/problem-with-geometry-expression-from-paul-bourke/#post-175653 Wed, 03 Mar 2010 18:46:07 +0000 Rob Ramirez u != v

make sure you’re matrix has two dimensions and try this:

jit.expr @expr
cos(norm[0]*TWOPI)/(sqrt(2)+(sin(norm[1]*TWOPI))
sin(norm[0]*TWOPI)/(sqrt(2)+(sin(norm[1]*TWOPI))
1/(sqrt(2)+cos(norm[1]*TWOPI))
]]> http://cycling74.com/forums/topic/problem-with-geometry-expression-from-paul-bourke/#post-175654 <![CDATA[Re: problem with geometry expression from Paul Bourke]]> http://cycling74.com/forums/topic/problem-with-geometry-expression-from-paul-bourke/#post-175654 Wed, 03 Mar 2010 19:50:32 +0000 Ad. thank you camarade !
Ad.

]]>