[R] vertical semi-circles in R

Jim Lemon
Sun, 25 Jun 2017 22:16:53 -0000

Hi Eliza,
How about this:

library(plotrix)
plot(0,type="n")
draw.arc(rep(0,6),seq(0.1,0.6,by=0.1),radius=0.05,
 angle1=3*pi/2,angle2=5*pi/2)

Jim

On Sun, Jun 25, 2017 at 9:34 PM, Eliza B <eliza_botto1 at outlook.com>
wrote:
> Dear useRs,
>
>
> I am to teach my students some drawing techniques in R. I started shape of
an handle by using the following codes;
>
>>plot(0,0,col="white")
>
>>segments(0,0,0.3,0.3)
>
>>segments(0.3,0.4,0.3,0.3)
>
>>segments(0.3,0.4,0,0.7)
>
>>segments(0,0.7,0,0.6)
>
>>segments(0,0.0,0,0.1)
>
> The coding will draw a section of a handle. Now I want to draw semi circles
of radius 0.05 between (0,0.6) and (0,0.1), oriented vertically and outward with
mouth facing against the y-axis.
>
> I tried every help available online but to no use.
>
> Thanks in advance,
>
> EB
>
>
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