Thanks Barry, that works beautifully!
Roger
Barry Rowlingson schreef:
2008/8/17 Roger Leenders <[EMAIL PROTECTED]>:
WinXP, R2.7.1
Thanks so much to all who have reponded to my inquery. The solutions are
most helpful.
There is only one final thing that I can't seem to get right.
All of th
2008/8/17 Roger Leenders <[EMAIL PROTECTED]>:
> WinXP, R2.7.1
>
> Thanks so much to all who have reponded to my inquery. The solutions are
> most helpful.
> There is only one final thing that I can't seem to get right.
> All of the proposed solutions yield a figure that is not quite round, but is
>
in(y2), y2, min(y2) ) )
xx <- seq(-2.7,2.7, length.out=1000)
xxx <- embed(xx,2)[,2:1]
for(i in 1:999) {
clipplot(tmpfun(), xxx[i,], c( min(bottom(xxx[i,])), max(top(xxx[i,])))
)
}
polygon(c(x1,x2),c(y1,y2))
Hope this helps,
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
ountain Healthcare
[EMAIL PROTECTED]
(801) 408-8111
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Roger Leenders
> Sent: Friday, August 15, 2008 6:01 AM
> To: r-help@r-project.org
> Subject: [R] continuous coloring of a polygon
>
It rather sounds like you might be designing a gauge display for a
dashboard. If that's the case, I'd recommend checking out:
Information Dashboard Design: The Effective Visual Communication of Data
Stephen Few
http://www.amazon.com/dp/0596100167
as well as some of his online writings:
http://w
Am 15.08.2008 um 14:00 schrieb Roger Leenders:
I can draw the polygon as above, but I don't know how to do the
coloring. It is easy to give the polygon only one color (e.g. through
polygon(c(x1,x2),c(y1,y2), col="red")), but I need a way in which to
color the polygon such that the color moves
"Roger Leenders" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Now I want to fill the polygon with color, such that it starts on the left
> with red and ends on the right with green, following the coloring of the
> rainbow.
I'd recommend using polar coordinates, like shown belo
Hi Aiste,
Thank you. It may be slow, but it is exactly what I was looking for! I'd
be interested if anyone has a faster solution, but this already does the
trick well.
Of course there will be additional elements in the figure, but it is the
coloring I was struggling with.
thanks, Roger
Ai
Hello,
I slightly altered your code, but I hope that's what you want:
l <- 1000
radius <- 3
x <- seq(-radius,radius,length=l)
y <- sqrt(radius^2-x^2)
xx <- c(x,-x)
yy <- c(y,-y)
plot(xx,yy, xlim=c(-radius,radius),ylim=c(-radius,radius), type="l",
ylab="", xlab="", axes=F)
radius <- 2.7
x1 <- seq
Roger Leenders rug.nl> writes:
>
> I have a polygon inside a circle as follows:
>
.. Example code removed (but it's nice you included it)
> (the graph much resembles a speed dial inside a car).
> Now I want to fill the polygon with color, such that it starts on the
> left with red and ends on
R2.7.1, WinXP
Hi,
I have a polygon inside a circle as follows:
radius <- 3
x <- seq(-radius,radius,length=2000)
y <- sqrt(radius^2-x^2)
xx <- c(x,-x)
yy <- c(y,-y)
plot(xx,yy, xlim=c(-radius,radius),ylim=c(-radius,radius), type="l",
ylab="", xlab="", axes=F)
radius <- 2.7
x1 <- seq(-radius,
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