graphic device Windows tickmarks

Hi

Without looking at the help guide I think there are restrictions on
resolution
and just in case of unit problems I worked in the default units

png("test.png",units="in",width=12,height=12,res=300)

Error in png("test.png", units = "in", width = 12, height = 12, res = 300) :

   unable to start png() device
In addition: Warning messages:
1: In png("test.png", units = "in", width = 12, height = 12, res = 300) :
   unable to allocate bitmap
2: In png("test.png", units = "in", width = 12, height = 12, res = 300) :
   opening device failed

12*72

[1] 864

png("test.png",width=864,height=834,res=150)
plot(seq(0,1000),rep(10,1001),xaxt="n")
axis(1,seq(0,1000,by=10),at=seq(0,1000,by=10),tick=TRUE)
axis(1, at = thickticks, labels=FALSE, las = 1,lwd.ticks=2)
dev.off()

Check ?postscript and the options as eps and pdf require different
arguments.

postscript("test.eps", paper = "special", width = 12,height = 12)
plot(seq(0,1000),rep(10,1001),xaxt="n")
axis(1,seq(0,1000,by=10),at=seq(0,1000,by=10),tick=TRUE)
axis(1, at = thickticks, labels=FALSE, las = 1,lwd.ticks=2)
dev.off()
pdf("test.pdf", paper = "special", width = 12,height = 12)
plot(seq(0,1000),rep(10,1001),xaxt="n")
axis(1,seq(0,1000,by=10),at=seq(0,1000,by=10),tick=TRUE)
axis(1, at = thickticks, labels=FALSE, las = 1,lwd.ticks=2)
dev.off()

All the above work for me on Win 7 32

platform       i386-w64-mingw32
arch           i386
os             mingw32
system         i386, mingw32

Similar to the above has worked on Win 64

Regards

Duncan


Duncan Mackay
Department of Agronomy and Soil Science
University of New England
Armidale NSW 2351
Email: home: mackay at northnet.com.au


-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Christian
Brandst?tter
Sent: Tuesday, 31 May 2016 05:24
To: r-help at r-project.org
Subject: [R] graphic device Windows tickmarks

Dear List,

I discovered an issue; when plotting (base) in R, the tickmark-labels
are slightly off (Windows machine).

Thus, when saving the plot in R with x11() and dev(...) the
plot-tickmarks shift, see the example below.

Session Info:

R version 3.2.3 (2015-12-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

With savePlot it works, but the graph quality is not as nice. Am I
missing something here?


Example:
thickticks <-
c(0,40,90,140,200,260,320,380,440,500,560,620,680,740,800,860,920,980)

x11(width=12,height=12)
plot(seq(0,1000),rep(10,1001),xaxt="n")
axis(1,seq(0,1000,by=10),at=seq(0,1000,by=10),tick=TRUE)
axis(1, at = thickticks, labels=FALSE, las = 1,lwd.ticks=2)

# plots
dev.print(device=png,"test.png",units="in",width=12,height=12,res=500) #
won't display prop.
dev.print(device=postscript,"test.eps",width=12,height=12)  # won't
display prop.
dev.print(device=pdf,"test.pdf",width=12,height=12)  # won't display prop.
savePlot("test_2.png",type="png") # displays prop.