> On Jun 14, 2017, at 9:46 AM, Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote:
>
> I don't see a question. If your question is whether R supports pattern fills,
> AFAIK it does not. If that is not your question, ask one.
> --
> Sent from my phone. Please excuse my brevity.
>
> On June 14, 2017 7:57:41 AM PDT, jean-philippe
> <jeanphilippe.fonta...@gssi.infn.it> wrote:
>> dear R users,
>>
>> I would like to fill a circle with yellow stripes instead of a uniform
>> yellow color. To draw the circle I used the following command after
>> having loaded the (very nice !) plotrix library :
>>
>> library(plotrix)
>> pdf("MWE.pdf",width=8, height=8)
>> plot(seq(-12.5,-8.7,length.out=100),seq(-11.3,-8.3,length.out=100),type="l",col="red",xlim=c(-12.5,-8.7),ylim=c(-11.5,-8.5))
>> par(new=T)
>> plot(seq(-12.5,-8.7,length.out=100),seq(-11.7,-8.7,length.out=100),type="l",col="red",xlim=c(-12.5,-8.7),ylim=c(-11.5,-8.5))
>> par(new=T)
>> polygon(c(seq(-12.5,-8.7,length.out=100),
>> rev(seq(-12.5,-8.7,length.out=100))), c(seq(-11.3,-8.3,length.out=100),
>>
>> rev(seq(-11.7,-8.7,length.out=100))),
>> col = alpha("red",0.4), border = NA)
>> par(new=T)
>> draw.circle(-12.85,-10.9,0.85,nv=1000,border=NULL,col="yellow",lty=1,lwd=1)
>> dev.off()
>>
Agree that the coding question remains unclear, so not using the offered
example but responding to the natural language query. The `polygon` function
has 'density' and 'angle' argument that with 'col' and 'lwd' can make slanted
fill lines. This is a modification of hte first example on `?polygon`?
x <- c(1:9, 8:1)
y <- c(1, 2*(5:3), 2, -1, 17, 9, 8, 2:9)
op <- par(mfcol = c(3, 1))
for(xpd in c(FALSE, TRUE, NA)) {
plot(1:10, main = paste("xpd =", xpd))
box("figure", col = "pink", lwd = 3)
polygon(x, y, xpd = xpd, col = "orange", density=3, angle=45, lwd = 5,
border = "red")
}
The polygon function is _not_ in pkg::plotrix.
>> It looks a bit ugly since they are not real data, but it is the
>> simplest
>> MWE example that I found.
>>
>>
>> Thanks, best
>>
>>
>> Jean-Philippe
>
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David Winsemius
Alameda, CA, USA
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