Displaying 20 results from an estimated 1000 matches similar to: "polypath winding rule with transparency"
2016 Aug 04
2
[FORGED] Re: polypath winding rule with transparency
Hi
Just to clarify, I think this IS a problem with grid.path() as well as
polypath().
For the example you give, grid.path() diverts to drawing a polygon
(because there is no 'id' specified), and the NAs in 'x' generate two
separate polygons, which get drawn one on top of the other.
The correct analogy to the polypath() example is ...
x2 <- matrix(x[!is.na(x)], ncol=2)
2017 Apr 24
1
polypath winding rule with transparency
On Thu, 4 Aug 2016 at 17:53 Michael Sumner <mdsumner at gmail.com> wrote:
> On Thu, 4 Aug 2016 at 11:17 Paul Murrell <paul at stat.auckland.ac.nz> wrote:
>
>> Hi
>>
>> Just to clarify, I think this IS a problem with grid.path() as well as
>> polypath().
>>
>>
> Hi, oh dear - sorry about that
>
> I appreciate the deeper explanation, I
2016 Aug 03
0
polypath winding rule with transparency
Hello,
it's probably worth adding that this is not a problem with pathGrob, only
polypath.
This code is sufficient to demonstrate the problem in Windows.
## overlapping, both clock-wise
x <- cbind(c(.1, .1, .6, .6, NA, .4, .4, .9, .9),
c(.1, .6, .6, .1, NA, .4, .9, .9, .4))
## only a problem on Windows windows() and png()
plot(x);polypath(x, rule = "winding", col =
2016 Aug 04
0
[FORGED] Re: polypath winding rule with transparency
On Thu, 4 Aug 2016 at 11:17 Paul Murrell <paul at stat.auckland.ac.nz> wrote:
> Hi
>
> Just to clarify, I think this IS a problem with grid.path() as well as
> polypath().
>
>
Hi, oh dear - sorry about that
I appreciate the deeper explanation, I knew about the id aspect in grid,
but just forgot in my haste.
I'll be more careful with examples if I find any more clues.
2013 Jul 16
1
Masking oceans using polypath
Hi R-help
I am trying to mask the ocean from an image plot I have made.
Here is some example code:
library(mapdata)
image(x=110:155, y =-40:-10, z = outer(1:45, 1:30, "+"),
xlab = "lon", ylab = "lat")
outline <- map("worldHires", plot=FALSE) # returns a list of x/y coords
xrange <- range(outline$x, na.rm=TRUE) # get bounding box
yrange
2011 Aug 08
1
Xll.options().
This question seemed to me to be more appropriate for r-devel
than for r-help. My apologies if this is not the case.
Recently I installed ``cairo'' on my lap-top so that I could make
use of the (newish) polypath() function, with on-screen graphics.
(The polypath() function does not work with X11(type="Xlib").)
The installation went smoothly, X11(type="cairo") works
2010 Oct 15
1
Downloading file with lapply
I'm still getting familiar with lapply
I have this date sequence
x <- seq(as.Date("01-Jan-2010",format="%d-%b-%Y"), Sys.Date(), by=1) #to
generate series of dates
I want to apply the function for all values of x . so I use lapply (Still a
newbie!)
I wrote this test function
pFun <- function (x) {
print(paste("This is: ",x,sep=""))
}
When I
2011 Aug 26
1
methods() not listing some S3 plot methods...?
Dear List,
This may be related to this email thread initiated by Ben Bolker last
month: https://stat.ethz.ch/pipermail/r-devel/2011-July/061630.html
In answering this Question on StackOverflow
http://stackoverflow.com/q/7195628/429846 I noticed that `methods()` was
not listing some S3 methods for `plot()` provided by the mgcv package.
At the time I wanted to check the development version of R as
2017 Jun 16
0
"reverse" quantile function
It would depend on which one of the 9 quantile definitions you are using. The discontinuous ones aren't invertible, and the continuous ones won't be either, if there are ties in the data.
This said, it should just be a matter of setting up the inverse of a piecewise linear function. To set ideas, try
x <- rnorm(5)
curve(quantile(x,p), xname="p")
The breakpoints for the
2013 Mar 13
1
2 questions about svg output
Hi everybody :)
I use R to plot things in svg format. One of the things is text, of course.
I noticed that text() in svg() gets saved as path, which is unacceptable
for my purposes. (Interestingly, text() in cairo_pdf() gets saved as text.)
Is there a way to save text as text in svg?
And paths also is what I plot a lot. I know there is segments(), which plots
disconnected segments, and things
2005 Jul 07
5
[LLVMdev] External function 'pthread_once' could not be resolved
Hi LLVM'ers,
I'm trying to build the DotGNU project with the LLVM-tools.
After minor modifications of source and build code and some configure
housekeeping, it seems that I've managed so far to build all the DotGNU
tools. However, when extensively using the DotGNU tools I get this error
message:
make[1]: Entering directory `/home/hb/projects/build/LLVM/pnet-1-1/samples'
2005 Jul 07
0
[LLVMdev] External function 'pthread_once' could not be resolved
On Thu, 2005-07-07 at 13:52 +0200, Henrik Bach wrote:
> make[1]: Entering directory `/home/hb/projects/build/LLVM/pnet-1-1/samples'
> ../ilasm/ilasm -o evenodd.exe
> /home/hb/projects/src/pnet-1/pnet-0.7.0/samples/evenodd.il
> ERROR: Program used external function 'pthread_once' which could not be
> resolved!
>
1998 Apr 12
3
R-beta: S Compatibility (again)
While I think total compatibility is not possible or even very
important I have become aware recently of some fairly low level
incompatibilities that have rather serious consequences for
interchange between systems. Some of these are possibly well
known, but I put them on on record here just in case. (I do not
expect any action on these, of course, but people may want to
note them, and correct
1998 Apr 12
3
R-beta: S Compatibility (again)
While I think total compatibility is not possible or even very
important I have become aware recently of some fairly low level
incompatibilities that have rather serious consequences for
interchange between systems. Some of these are possibly well
known, but I put them on on record here just in case. (I do not
expect any action on these, of course, but people may want to
note them, and correct
2018 Feb 10
2
How to label a polygon window (spatstat package)
Hi,?
I want to label a polygon (circle or polygon) inside.
As for example code?
library(spatstat)
x <- runif(20)
y <- runif(20)
X <- ppp(x, y, window=disc(0.7))
plot(X)
Now I want to label that circle inside . Can some one please help me ??
Thanks.?
Regards.............
Tanvir Ahamed
Stockholm, Sweden???? |??mashranga at yahoo.com
2004 Apr 02
1
Winding Number
I have shapefiles for the state climatic divisions for the United States
and read.shape brings them in wonderfully. Now I wish to run through a
list of several thousand observation sites to find out in which division
each is located. I figure that I can compute the winding number for each
site and be done. However a search doesn't find any references and I
can't find a winding number
2017 Apr 19
2
ask.yes.no() function
As described in
<https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=17242>, R base
functions are currently inconsistent in asking interactive "yes/no" type
questions. One solution to this is to have a function to do it, and to
use it consistently.
Rather than just writing such a function and possibly missing some
desirable feature, I'd like to ask if anyone can point
2018 May 24
2
Problem with adding a raster and a brick
Hi,
I seem to be having a problem adding the following two raster objects
together - one is a rasterLayer, the other is a rasterBrick. The extent,
resolution, and origin are the same, so according to my understand it
should work. The objects look like so:
> obs.clim
class : RasterLayer
dimensions : 60, 200, 12000 (nrow, ncol, ncell)
resolution : 0.5, 0.5 (x, y)
extent : -70,
2018 Feb 10
0
How to label a polygon window (spatstat package)
Try
text(0.5, 0.5, label = "?text")
On Sat, 10 Feb 2018, 16:22 Mohammad Tanvir Ahamed via R-help, <
r-help at r-project.org> wrote:
> Hi,
> I want to label a polygon (circle or polygon) inside.
> As for example code
>
> library(spatstat)
> x <- runif(20)
> y <- runif(20)
> X <- ppp(x, y, window=disc(0.7))
> plot(X)
>
> Now I want to
2017 Apr 20
1
ask.yes.no() function
On 20 April 2017 at 09:33, Michael Sumner wrote:
| Perhaps worth pointing out "yesno" as a candidate:
|
| https://CRAN.R-project.org/package=yesno
| <https://cran.r-project.org/package=yesno>
Not really as
i) base R will not have dependencies outside of it
ii) more importantly, Duncan asked for a good example of a "consistent" (as
in: predictable) question