Hi
Glad I could help.
Here's a way you could get rid of the rectangle in the first place ...
library(Vennerable)
groups<-list(set1=1:100, set2=80:120)
V<-Venn(groups)
C<-compute.Venn(V)
X11(w=7,h=7)
grid.newpage()
plot(C, show=list(Universe=FALSE))
It required crawling through the 'Vennerable' source code a bit to find
that 'show' argument, but that appears to do the trick.
Paul
On 15/11/16 02:08, DE LAS HERAS Jose wrote:
Hi,
The grid.ls() and grid.remove() approach worked beautifully to remove
the box, thank you! Because the box is the first thing to be drawn, it
is the first object shown by grid.ls(), so I can easily add a line of
code to automatically remove the box. Result!
Although I'd still like to know how one chooses not to plot that box in
the first place. I really must study a little the grid package. I've
survived using base R plots and they work very nicely, but it looks like
you can do a lot of cool stuff with grid.
In case you might know the answer and feel like adding a comment here
(I'm already very happy with the grid.ls() approach, thanks! :)) this is
a simple code example without making it look pretty or anything:
library(Vennerable)
groups<-list(set1=1:100, set2=80:120)
V<-Venn(groups)
C<-compute.Venn(V)
X11(w=7,h=7)
grid.newpage()
plot(C)
class(C)
[1] "VennDrawing"
attr(,"package")
[1] "Vennerable"
I don't want the black box around the diagram.
I was able to overwrite it with a white box like this:
vp=viewport(x=0.5, y=0.5, width=0.95, height=0.75)
pushViewport(vp)
grid.rect(gp=gpar(lty=1, col="white", lwd=15))
upViewport() # needs to be executed to return focus upwards
but as the box has different dimensions depending on the actual sets
being drawn, the width and height must be found empirically each time. A
bit boring it you need to produce a bunch of figures at once.
I was wondering what parameter I could include in the call to 'plot'
that would prevent the box from being drawn. Usually this is achieved
with bty="n", but the method for plotting a "VennDrawing" structure uses
the grid package and I'm lost there at the moment.
Thank you for your help again, grid.ls() etc is a very cool and
flexible approach
Jose
------------------------------------------------------------------------
*From:* Paul Murrell <p...@stat.auckland.ac.nz>
*Sent:* 13 November 2016 19:57
*To:* DE LAS HERAS Jose; R-help@r-project.org
*Subject:* Re: [FORGED] [R] How to remove box in Venn plots (Vennerable
package, uses grid) - similar to bty="n" in standard plots
Hi
Can you supply some example code?
You might get some joy from grid.ls() to identify the box followed by
grid.remove() to get rid of it; some example code would allow me to
provide more detailed advice.
Paul
On 12/11/16 05:12, DE LAS HERAS Jose wrote:
I'm using the package Vennerable to make Venn diagrams, but it always
makes a box around the diagram.
Using standard R plots I could eliminate that by indicating
bty="n"
but it seems Vennerable uses the Grid package to generate its plots
and I'm not really familiar enough with Grid. I was looking at the
documentation but I can't seem to find a way to achieve that. I'd
even be happy drawing a white rectangle with wide lines to overplot
the box, but there must be a way to not draw the box in the first
place.
Anybody knows how?
Jose
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