Re: [R] zero margin / marginless plots (in lattice?)
On Thu, 11 Jan 2007, David Forrest wrote:
Thanks. The xaxs|yaxs='i' works well for the base graphics. Is there an
additional parameter in play for lattice graphics? The closest I could
gotten is the below which still leaves a bit of a margin:
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
xyplot(y~x,xy,scales=list(axs='i',draw=FALSE),type='l',xlab=NULL,ylab=NULL)
Hi again,
If there isn't a way to completely eliminate the margins in lattice/grid
plots, is there a way to find the graphic device extents as measured in
data coordinates?
Dave
Dave
On Wed, 10 Jan 2007, Marc Schwartz wrote:
On Wed, 2007-01-10 at 21:18 -0600, David Forrest wrote:
Hi,
I'd like to produce a marginless or zero margin plot so that the pixel
coordinates represent the mathematics.
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
png('junk.png',width=300,height=300)
par(mar=c(0,0,0,0))
plot(xy$x,xy$y,xlim=c(0,1),ylim=c(,1))
dev.off()
The resultant file has about a 10 pixel margin around these lines, and I'm
not sure what parameter or function is controlling this offset. Any
hints?
Thanks for your time,
Dave
By default, the axis ranges are extended by +/- 4%. You can change this
by using:
plot(xy$x, xy$y, xlim = c(0, 1), ylim = c(0, 1),
xaxs = i, yaxs = i)
where 'xaxs' and 'yaxs' set the axis ranges to the actual data ranges.
See ?par for more information.
HTH,
Marc Schwartz
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Dr. David Forrest
[EMAIL PROTECTED](804)684-7900w
[EMAIL PROTECTED] (804)642-0662h
http://maplepark.com/~drf5n/
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] zero margin / marginless plots (in lattice?)
On Thu, 11 Jan 2007, David Forrest wrote:
Thanks. The xaxs|yaxs='i' works well for the base graphics. Is there an
additional parameter in play for lattice graphics? The closest I could
gotten is the below which still leaves a bit of a margin:
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
xyplot(y~x,xy,scales=list(axs='i',draw=FALSE),type='l',xlab=NULL,ylab=NULL)
From an old email of Depayan's I see these margins in lattice are are due
to 'padding' and this lattice theme seems to eliminate them:
theme.novpadding -
list(layout.heights =
list(top.padding = 0,
main.key.padding = 0,
key.axis.padding = 0,
axis.xlab.padding = 0,
xlab.key.padding = 0,
key.sub.padding = 0,
bottom.padding = 0),
layout.widths =
list(left.padding = 0,
key.ylab.padding = 0,
ylab.axis.padding = 0,
axis.key.padding = 0,
right.padding = 0))
Then, using the quakes data example from ?xyplot :
library(stats)
xyplot(lat~long,quakes,
scales=list(axs='i',draw=FALSE),
,xlab=NULL,ylab=NULL,par.settings = theme.novpadding)
...Then this graphic should drop nicely into GoogleEarth with a
boundingbox matching the data:
range(quakes$lat);range(quakes$long)
[1] -38.59 -10.72
[1] 165.67 188.13
dev.copy(png,width=400,height=400,file='quakes.png')
and post it to the web and KMZ file as at:
http://www.maplepark.com/drf5n/extras/R_xyplot_googleEarth.kmz
Thanks.
Dave
On Wed, 10 Jan 2007, Marc Schwartz wrote:
On Wed, 2007-01-10 at 21:18 -0600, David Forrest wrote:
Hi,
I'd like to produce a marginless or zero margin plot so that the pixel
coordinates represent the mathematics.
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
png('junk.png',width=300,height=300)
par(mar=c(0,0,0,0))
plot(xy$x,xy$y,xlim=c(0,1),ylim=c(,1))
dev.off()
The resultant file has about a 10 pixel margin around these lines, and I'm
not sure what parameter or function is controlling this offset. Any
hints?
Thanks for your time,
Dave
By default, the axis ranges are extended by +/- 4%. You can change this
by using:
plot(xy$x, xy$y, xlim = c(0, 1), ylim = c(0, 1),
xaxs = i, yaxs = i)
where 'xaxs' and 'yaxs' set the axis ranges to the actual data ranges.
See ?par for more information.
HTH,
Marc Schwartz
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Dr. David Forrest
[EMAIL PROTECTED](804)684-7900w
[EMAIL PROTECTED] (804)642-0662h
http://maplepark.com/~drf5n/
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] zero margin / marginless plots (in lattice?)
Thanks. The xaxs|yaxs='i' works well for the base graphics. Is there an
additional parameter in play for lattice graphics? The closest I could
gotten is the below which still leaves a bit of a margin:
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
xyplot(y~x,xy,scales=list(axs='i',draw=FALSE),type='l',xlab=NULL,ylab=NULL)
Dave
On Wed, 10 Jan 2007, Marc Schwartz wrote:
On Wed, 2007-01-10 at 21:18 -0600, David Forrest wrote:
Hi,
I'd like to produce a marginless or zero margin plot so that the pixel
coordinates represent the mathematics.
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
png('junk.png',width=300,height=300)
par(mar=c(0,0,0,0))
plot(xy$x,xy$y,xlim=c(0,1),ylim=c(,1))
dev.off()
The resultant file has about a 10 pixel margin around these lines, and I'm
not sure what parameter or function is controlling this offset. Any
hints?
Thanks for your time,
Dave
By default, the axis ranges are extended by +/- 4%. You can change this
by using:
plot(xy$x, xy$y, xlim = c(0, 1), ylim = c(0, 1),
xaxs = i, yaxs = i)
where 'xaxs' and 'yaxs' set the axis ranges to the actual data ranges.
See ?par for more information.
HTH,
Marc Schwartz
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Dr. David Forrest
[EMAIL PROTECTED](804)684-7900w
[EMAIL PROTECTED] (804)642-0662h
http://maplepark.com/~drf5n/
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] zero margin / marginless plots
Hi,
I'd like to produce a marginless or zero margin plot so that the pixel
coordinates represent the mathematics.
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
png('junk.png',width=300,height=300)
par(mar=c(0,0,0,0))
plot(xy$x,xy$y,xlim=c(0,1),ylim=c(,1))
dev.off()
The resultant file has about a 10 pixel margin around these lines, and I'm
not sure what parameter or function is controlling this offset. Any
hints?
Thanks for your time,
Dave
--
Dr. David Forrest
[EMAIL PROTECTED](804)684-7900w
[EMAIL PROTECTED] (804)642-0662h
http://maplepark.com/~drf5n/
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] zero margin / marginless plots
On Wed, 2007-01-10 at 21:18 -0600, David Forrest wrote:
Hi,
I'd like to produce a marginless or zero margin plot so that the pixel
coordinates represent the mathematics.
xy-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
png('junk.png',width=300,height=300)
par(mar=c(0,0,0,0))
plot(xy$x,xy$y,xlim=c(0,1),ylim=c(,1))
dev.off()
The resultant file has about a 10 pixel margin around these lines, and I'm
not sure what parameter or function is controlling this offset. Any
hints?
Thanks for your time,
Dave
By default, the axis ranges are extended by +/- 4%. You can change this
by using:
plot(xy$x, xy$y, xlim = c(0, 1), ylim = c(0, 1),
xaxs = i, yaxs = i)
where 'xaxs' and 'yaxs' set the axis ranges to the actual data ranges.
See ?par for more information.
HTH,
Marc Schwartz
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
