Re: LOGO-L> Curve Stitching with Logo

["Charles T. Smith" <mrchuc@math.fan.org>]

Hello Yehuda,

At 8:27 PM +0300 6/28/1998, Yehuda wrote:
>Here's a different approach to draw Cardioid and Nephroid. The following short
>codes are for MSWLogo and UCBLogo. The Cardioid and the Nephroid are the
>envelope of the relevant images:

I was not able to make the following work in UCBLogo. My version (v4.6)
choked on setsc and circle. (I tried an earlier version of MSWLogo, but had
the same results.) I assume that setsc is like setbg, but I wasn't sure how
circle was supposed to work. My guess is that :rad is radius. Can you
enlighten me on how circle works. Is it a procedure in your library?

I am not sure what you mean by "envelope of the relevant images." That
might become clear, though, when I get it to work.

Thanks for the help. This "string art" is a blast!

Chuc

>
>to main          
>; Cardioid
>cs ht pu rt 90
>setsc 0 setpc 6 draw 35
>end
>
>to draw :rad
>repeat 32[fd :rad pd
>   circle distance se 0 :rad
>   pu bk :rad rt 360/32]
>end
>
>============================
>
>to main          
>; Nephroid
>cs ht pu
>setsc 0 setpc 4 draw 46
>end
>
>to draw :size
>repeat 32[fd :size pd
>   circle xcor
>   pu bk :size rt 360/32]
>end
>
>Regards...
>
>[[Yehuda]]


Charles T. Smith
Professional Educator and Logo Maniac
535 Cap Au Gris
Troy, MO 63379
314-528-7074
mailto:MrChuc@math.fan.org
http://math.fan.org/~turtle_family


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