Hello all,
I am trying to use computer modern fonts in my r grahics. I tried to do,
as described here: http://www.stat.auckland.ac.nz/~paul/R/CM/CMR.html
but unfortunately, it does not work.
First of all I downloaded the cm-lgc package and the AFM and PFB-files
from the page and put them in my R working directory, so far, so good.
Then I tried to run the following code:
sn <- seq(1,7,length=100)
sm <- seq(0,4,length=100)
f <- function(x,y) {5.64080973 + 0.12271038*x - 0.27725481 * y + 0.29281216*x*y}
z <- outer(sn,sm,f)
nrz <- nrow(z)
ncz <- ncol(z)
jet.colors <- colorRampPalette( c("yellow", "red") )
nbcol <- 100
color <- jet.colors(nbcol)
zfacet <- z[-1, -1] + z[-1, -ncz] + z[-nrz, -1] + z[-nrz, -ncz]
facetcol <- cut(zfacet, nbcol)
CM <- Type1Font("CM",
c("cm-lgc/fonts/afm/public/cm-lgc/fcmr8a.afm",
"cm-lgc/fonts/afm/public/cm-lgc/fcmb8a.afm",
"cm-lgc/fonts/afm/public/cm-lgc/fcmri8a.afm",
"cm-lgc/fonts/afm/public/cm-lgc/fcmbi8a.afm",
"cmsyase.afm"))
postscriptFonts(CM=CM)
pdf("snxsm.pdf")
par(family="CM")
persp(sn,sm,z,xlab="SN",
ylab="SM",zlab="VI",theta=-20,phi=20,r=5,shade=0.01,col=color[facetcol])
dev.off()
It works fine, until the persp() function, there I get:
persp(sn,sm,z,xlab="SN",
ylab="SM",zlab="VI",theta=-20,phi=20,r=5,shade=0.01,col=color[facetcol])
Error in persp.default(sn, sm, z, xlab = "SN", ylab = "SM", zlab = "VI", :
Invalid font type
In addition: Warning messages:
1: In persp.default(sn, sm, z, xlab = "SN", ylab = "SM", zlab = "VI", :
font family not found in PostScript font database
2: In persp.default(sn, sm, z, xlab = "SN", ylab = "SM", zlab = "VI", :
font family not found in PostScript font database
3: In persp.default(sn, sm, z, xlab = "SN", ylab = "SM", zlab = "VI", :
font family not found in PostScript font database
4: In persp.default(sn, sm, z, xlab = "SN", ylab = "SM", zlab = "VI", :
font family not found in PostScript font database
5: In persp.default(sn, sm, z, xlab = "SN", ylab = "SM", zlab = "VI", :
font family not found in PostScript font database
Any help is appreciated! Also a hint/link how to install the CM fonts
under R for general use, so that I don't have to have it in my wd all
the time.
Thank you very much!
Greetings,
Friedericksen
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