On Tue, 8 May 2007, Paulo Barata wrote:
>
> Prof. Ripley,
>
> Maybe the fact that few R plot regions have a 1:1 aspect ratio
> is not a major problem here. One has to deal with the same
> issue when drawing a circle parametrically. Depending on the
> window size, a (cos(t),sin(t)) plot appears as
Prof. Ripley,
Maybe the fact that few R plot regions have a 1:1 aspect ratio
is not a major problem here. One has to deal with the same
issue when drawing a circle parametrically. Depending on the
window size, a (cos(t),sin(t)) plot appears as an ellipse.
To get a circle parametrically, one has t
There is now an xspline() function in R-devel, with an example showing how
to add arrows.
I thought a bit more about a 'circular arc' function, but there really is
a problem with that. Few R plot regions have a 1:1 aspect ratio including
some that are intended to do so (see the rw-FAQ). symbo
(Ted Harding) wrote:
> This thread prompts me to ask about something I've
> been pondering for a while, as to whether there's an
> implementation somewhere ticked away in the R resources.
>
> So far, people have been responding to the original query
> in terms of increasing the numbers of points,
Hi
Paulo Barata wrote:
> Dr. Murrell and all,
>
> One final suggestion: a future function arc() in package graphics,
> with centre-radius-angle parameterisation, could also include an
> option to draw arrows at either end of the arc, as one can find
> in function arrows().
... and in grid.xspl
Dr. Murrell and all,
One final suggestion: a future function arc() in package graphics,
with centre-radius-angle parameterisation, could also include an
option to draw arrows at either end of the arc, as one can find
in function arrows().
Thank you.
Paulo Barata
---
Hi
Paulo Barata wrote:
> Dr. Snow and Prof. Ripley,
>
> Dr. Snow's suggestion, using clipplot (package TeachingDemos),
> is maybe a partial solution to the problem of drawing an arc of
> a circle (as long as the line width of the arc is not that large,
> as pointed out by Prof. Ripley). If the a
Dr. Snow and Prof. Ripley,
Dr. Snow's suggestion, using clipplot (package TeachingDemos),
is maybe a partial solution to the problem of drawing an arc of
a circle (as long as the line width of the arc is not that large,
as pointed out by Prof. Ripley). If the arc is symmetrical around
a vertical
On Tue, 1 May 2007, Greg Snow wrote:
> Here is an approach that clips the circle you like from symbols down to
> an arc (this will work as long as the arc is less than half a circle,
> for arcs greater than half a circle, you could draw the whole circle
> then use this to draw an arc of the bacgro
---
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Paulo Barata
> Sent: Monday, April 30, 2007 8:17 PM
> To: r-help@stat.math.ethz.ch
> Subject: [R] to draw a smooth arc
>
>
> Dear R-list members,
>
> I would like to draw a smooth arc. I can draw an arc
Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Tuesday, May 01, 2007 7:51 AM
> To: r-help@stat.math.ethz.ch
> Subject: Re: [R] to draw a smooth arc
>
> This thread prompts me to ask about something I've
This thread prompts me to ask about something I've
been pondering for a while, as to whether there's an
implementation somewhere ticked away in the R resources.
So far, people have been responding to the original query
in terms of increasing the numbers of points, and joining
these by lines.
Howe
On Tue, 1 May 2007, Jim Lemon wrote:
> Paulo Barata wrote:
>> Dear R-list members,
>>
>> I would like to draw a smooth arc. I can draw an arc
>> parametrically, but this produces an arc too coarse,
>> even allowing for different increments in sequence t
>> in the example below. Function "symbols"
Paulo Barata wrote:
> Dear R-list members,
>
> I would like to draw a smooth arc. I can draw an arc
> parametrically, but this produces an arc too coarse,
> even allowing for different increments in sequence t
> in the example below. Function "symbols" (graphics) does
> produce a smooth circle, bu
Dear R-list members,
I would like to draw a smooth arc. I can draw an arc
parametrically, but this produces an arc too coarse,
even allowing for different increments in sequence t
in the example below. Function "symbols" (graphics) does
produce a smooth circle, but it cannot produce an arc.
Plea
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