Displaying 20 results from an estimated 10000 matches similar to: "Unwanted white borders on semi-transparent polygons?"
2002 Aug 06
1
polygon() draws non-transparent border, erase.screen draws non-transparent border (PR#1881)
# polygon ignores requests to have its border transparent, look at
par(bg="transparent")
plot(c(0, 3), 0:1)
polygon(c(0, 1, 1, 0), c(0, 0, 1, 1), border=NA, col = 0)
polygon(c(1, 2, 2, 1), c(0, 0, 1, 1), border="transparent", col = 0)
polygon(c(2, 3, 3, 2), c(0, 0, 1, 1), border=0, col = 0)
# a quick fix for erase.screen() is the following
erase.screen <-
function (n =
2004 Apr 09
1
rectangles without borders
Hi,
I want to draw rectangles with "rect" without borders, but with
shading (ie setting density). ?rect says
lty: line type for borders; defaults to '"solid"'.
but if I set it to 0, the border disappears, but the shading also
vanishes! But the above says that lty is the line type for BORDERS,
and does not mention density at all -- how do I get around this?
2008 Jul 27
1
Lattice wireframe: How to avoid drawing lines around polygons when using shade=TRUE
I am using wireframe from the lattice package, with the shade option set
to TRUE. When I output to PDF or Postscript, a line gets drawn around
each polygon of my surface which causes ugly Moir? effects and doesn't
make sense in my application (think the plot of Maunga Whau--gridlines
don't make sense). This does not happen when I display on the screen--
then I just get the surface as
2004 Feb 23
1
border of a polygon in contour.kriging - geoR
Dear all,
When a conventional kriging and then a contour plot is limited with a polygon (as possible with krige.conv and contour.kriging), the
polygon border is displayed in black by default.
> kc<-krige.conv(CZdata,loc=pred.grid,borders=czpoly,krige=krige.control(obj.m=ls))
> plot(CZcoord,xlab="x",ylab="y",type="n",asp=1)
>
2011 Feb 18
1
How to calculate the perimeter and common border of polygons?
Dear R-users,
Is there any way of calculating the perimeter of a polygon in a shapefile
object? Furthermore, how to calculate the length of the common border of two
polygons?
I've searched the code of spded, but could not find a hint on how to do it.
Thank you very much,
Leo.
[[alternative HTML version deleted]]
2011 Apr 13
3
latex, eps graphics and transparent colors
I have a diagram to be included in latex, where all my figures are .eps
graphics (so pdflatex is not an
option) and I want to achieve something
like the following: three concentric filled circles varying in lightness
or saturation. It is easiest to do this using
transparency, but in my test using the postscript driver, the
transparent color fills do not appear. Is it
correct that postscript()
2018 May 21
3
draw borders of bars inside of the rectangles in a barplot
Dear R-users,
I want to draw a barplot with beside=TRUE.
One halve of the bars are drawn with a border, while the other halve are drawn without a border (i.e. filled bars vs. non-filled bars next to each other).
Because borders are drawn around the bars, doing this leads to one halve of the bars being wider than the other halve, expanding across the 0-point of the y-axis.
This problem emerges
2019 Mar 15
1
Could we make filled.contour() more suitable for PDF viewers?
Note that I sent this to r-devel, yesterday.
However, it didn't appear on the mailing list.
So, I'm resending it.
Today, I plotted the following:
> filled.contour (,,z, color.palette=terrain.colors)
It looked OK, in R.
However, when I created a PDF document, the plot (and other similar plots)
had grid (and other) lines in it, that shouldn't be there.
Note that this problem is more
2007 Oct 08
1
do not plot polygon boundaries with spplot {sp}
Hi,
Is there a simple way to suppress the plotting of polygon boundaries with
spplot() ?
# simple list of 12 colors
cols <- brewer.pal(12, "Paired")
# plot pile of polygons, with 12 classes:
spplot(x, zcol='class2', col.regions=cols, scales=list(draw=T), xlab="Easting
(m)", ylab="Northing (m)")
... seems to work well. However the polygon boundaries
2010 Mar 24
1
shading an area of a graphic
Colleagues
OS 10.5
R: 2.10.1
I have a simple x-y plot for which I would like to shade the lower (or upper) part of the interior region (i.e., the area bounded by the axes). If the delineation between top and bottom were linear, it would be use to use the polygon function. However, the delineation is a curve (which I can describe by an equation). In theory, I could divide the x-axis into a
2018 May 21
0
draw borders of bars inside of the rectangles in a barplot
I recommend instead of no border, that you use a border with the same
color as the fill.
I do this in the likert functions in the HH package.
Rich
On Mon, May 21, 2018 at 10:59 AM, Martin Batholdy via R-help
<r-help at r-project.org> wrote:
> Dear R-users,
>
> I want to draw a barplot with beside=TRUE.
> One halve of the bars are drawn with a border, while the other halve are
2007 Oct 30
1
Polygon shading line colors
Hi there,
I'm having trouble working out how to change the colors of polygon
shading lines. If I plot a polygon with
polygon(poly,density=30,borders=gray(0.5))
I get gray borders but black shading lines; I have tried adding
col=gray(0.5), bg=gray(0.5) and fg=gray(0.5), but no luck.
How can I change the colors of the shading? The help file doesn't
seem to detail this, so any
2010 Apr 29
1
Request - adding recycled "lwd" parameter to polygon
Hello dear members of R-help and R-core mailing list,
I am not sure if this request is a "ticket" that should be filled somewhere
outside the mailing list. If so, I apologize for not doing and would like
to know where I should have filled it.
And to the subject matter:
I would like to use a command like this:
plot(c(1,8), 1:2, type="n")
polygon(1:7, c(2,1,2,NA,2,1,2),
2010 Apr 29
1
Request - adding recycled "lwd" parameter to polygon
Hello dear members of R-help and R-core mailing list,
I am not sure if this request is a "ticket" that should be filled somewhere
outside the mailing list. If so, I apologize for not doing and would like
to know where I should have filled it.
And to the subject matter:
I would like to use a command like this:
plot(c(1,8), 1:2, type="n")
polygon(1:7, c(2,1,2,NA,2,1,2),
2006 Apr 15
1
On the way to theming g-w-d
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2002 Mar 10
1
lattice library: xyplot and polygons
Dear R-Helpers,
Is there a way to draw shaded (filled) polygons in panel graphs produced
by xyplot ? I made different trials (see below) with polygon() and
grid.polygon() but polygons are not drawn (probably for the same reason
that prevents the use of lines, points, etc. in xyplot panels).
Thanks in advance,
Renaud
> Water
id label longitude latitude
515 21 Zone inondable
2006 Sep 07
1
area between two curves, but one is not continuous
Hello,
I want to colorize the area between two curves, but one of these
curves isn't continuous.
The best solution I found is the 2nd example in the help of polygon,
but how can I get no area filling for the missing data in the 2nd curve.
example:
x1 = c(1:8)
x2 = c(1:8)
y1 = c(1,5,6,1,4,5,5,5)
y2 = c(0,3,3,NA,NA,1,3,4)
plot(x1,y1,type="l")
lines(x2,y2)
for the missing parts I
2010 Oct 19
2
superpose.polygon, panel.polygon and their colors
Dear R-helpers,
the problem I'm facing today is to convince lattice to paint some areas
in gray.
The areas I would like to have in gray, are confidence bands
I've googled around in the mailing list archives and eventually find
some clues.
This link is my starting point
http://tolstoy.newcastle.edu.au/R/e2/help/07/04/15595.html
I'm reproducing here the code for your convenience
est
2012 Feb 06
1
ggplot2 geom_polygon fill
Hi everyone,
i've been trying to make a special plot with ggplot2, but I can't get it to
fill the polygon I'd like to see filled so very very much.
I want to display the difference or change in the distribution of the
modified Rankin Scale between two groups. mRS is a scale for disability or
daily activities competence.
It looks like this.
2011 Nov 27
1
conflict when passing an argument to a function within an other function
Dear all,
I have a problem with this piece of code which I don't really see how to
overcome and I think it might also be of more general interest:
map(xlim=c(-10,40),ylim=c(30,60)
,mar=rep(0,4)+.1
,fill=T
,col="darkseagreen"
,bg="skyblue"
)
The idea is to use the map function from the maps package to draw a map of
Europe. By default with the argument fill=T there is