[MWForum]Circle and arc help

[Daniel Ajoy]

On 15 Feb 2005 at 11:15, Trimbach, Traci wrote:

>  That page contained four commands: arcr, arcl, circler, and
> circlel.  These commands used pi to calculate the size of circle and arc
> to draw based on the input you used with the command.  So far I have not
> been able to find any commands like that so my students have been
> drawing circles using repeat statements.  What different ways can you
> draw circles in MicroWorlds?

Hi Traci,

I found these procedures in my Apple Logo book. You can put them in
the -tools-.txt  file as suggested:


to rcircle :r
repeat 36 [rcp :r]
end

to rarc :r
repeat 9 [rcp :r]
end

to rcp :r
right 5
forward :r * (3.14159) / 18
right 5
end

to lcircle :r
repeat 36 [lcp :r]
end

to larc :r
repeat 9 [lcp :r]
end

to lcp :r
left 5
forward :r * (3.14159) / 18
left 5
end



Daniel
OpenWorld Learning
http://mia.openworldlearning.org