R help - May 2005 - Round a line

R-help,

I have lloked in the archives found no answer to how to round the line
joint.

I have usedthe arguments lnd, ljoin in par but I get no differences in
the plotting.

x=1:10
par(ljoin="round",lend="round")
plot(x,sin(x),type="l",lwd=2)


Any suggestions?

I run on a Windows XP machine.
> version
         _              
platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    2              
minor    1.0            
year     2005           
month    04             
day      18             
language R  

Thank you in advance

Luis Ridao Cruz wrote:
> R-help,
> 
> I have lloked in the archives found no answer to how to round the line
> joint.
> 
> I have usedthe arguments lnd, ljoin in par but I get no differences in
> the plotting.
> 
> x=1:10
> par(ljoin="round",lend="round")
> plot(x,sin(x),type="l",lwd=2)
> 
> 
> Any suggestions?

Well, round is the default! You have to zoom in or make even thicker 
lines. Hence you might want to try out the folowing to see differences:

   x <- 1:10
   par(mfrow = c(1, 2))
   plot(x, sin(x), type="l", lwd=10)
   par(ljoin="mitre", lend="butt")
   plot(x, sin(x), type="l", lwd=10)

Uwe Ligges


> I run on a Windows XP machine.
> 
> 
>>version
> 
>          _              
> platform i386-pc-mingw32
> arch     i386           
> os       mingw32        
> system   i386, mingw32  
> status                  
> major    2              
> minor    1.0            
> year     2005           
> month    04             
> day      18             
> language R  
> 
> Thank you in advance
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html

"Luis Ridao Cruz" <Luisr at frs.fo> wrote in message
news:s2971f09.052 at ffdata.setur.fo...
> R-help,
>
> I have lloked in the archives found no answer to how to round the line
> joint.
>
> I have usedthe arguments lnd, ljoin in par but I get no differences in
> the plotting.
>
> x=1:10
> par(ljoin="round",lend="round")
> plot(x,sin(x),type="l",lwd=2)
On my Windows 2000 machine using R 2.1.0, par()$ljoin and par()$lend are
already "round" by default.  The par()$lmitre parameter is 10,

Paul Murrell's article "Fonts, lines, and transparency ..." in R
News 4/2
(Sept 2004) gives some clues under "The end of the line":
http://cran.stat.auckland.ac.nz/doc/Rnews/Rnews_2004-2.pdf



"All lines are drawn using a particular style for line ends and joins,
though the difference only becomes obvious when lines become thick."



Is it possible that with par()$lmitre at 10, and a lwd=2, you won't see any
difference?



efg