similar to: R fails when converting units using Hershey-Fonts

Dear list, Consider the following, library(grid) w = unit.c(unit(1, "in"), unit(2, "in")) w2 = w + unit(1, "mm") w[2] <- 0 w2[2] <- 0 convertUnit(w, "mm") #[1] 25.4mm 0mm convertUnit(w2, "mm") #Error in grid.Call("L_convert", x, as.integer(whatfrom), as.integer(whatto), : # INTEGER() can only be applied to a

Dear all, I'm puzzled by the behavior of stringHeight in the grid package. Consider the following test, library(grid) test <- function(lab="dog", ...){ g1 <- textGrob(lab) g2 <- rectGrob(height=grobHeight(g1), width=grobWidth(g1)) gg <- gTree(children=gList(g1,g2), ...) print(c("height:", convertUnit(stringHeight(lab), "mm",

Since release of R-1.9.0 is very close, let me mention that there seems to be a problem when building vignettes for package grid (see below), e.g. yesterday's R-1.9.0 beta on Windows NT 4.0. Uwe Ligges ==================================================== building/updating vignettes for package 'grid' ... Warning messages: 1: 'viewport.transform' is deprecated. Use

Hi: (Tried to find a bug report about this issue, but was unable to find it, let me know if this is a known issue) I have been working on an interface to highlight xyplot panels on mouse overs in JavaGD but I have stumbled with what seems to be a bug in trellis.focus. I am using R 2.8 with lattice 0.17-15 *** To replicate the bug: 1.- display an xyplot. For example, from the xyplot help page:

Hi: (Tried to find a bug report about this issue, but was unable to find it, let me know if this is a known issue) I have been working on an interface to highlight xyplot panels on mouse overs in JavaGD but I have stumbled with what seems to be a bug in trellis.focus. I am using JGR R 2.8 with lattice 0.17-15 Note: It's important to you use JGR to use the Java Graphics Device. *** To

Hi All, I have been able to modify the x-axis to start at zero by adding xlow and xhigh parameters; that was pretty simple. I have been unable to find the location of the code that would turn off the information weighting of the box size (I have smaller randomized trials getting less weight than a much larger non-randomized trial). The function is forestplot() from rmeta. Thanks for any

Hey, I'm trying to create an image file with the results of a regression analysis. In TeX, the line would be something like: $ size = 0.34 + 4.3 var_1 $ Can I create a plot window with just this line in it? I tried playing around with plot.new() or dev.new(), but didn't really find something that worked. Thanks in advance, Alex -- alexx at alexx-fett:~$ vi .emacs

This was reported to me by a colleague in China, so I may not be reproducing exactly what they are seeing (which I suspect is rw2011), but this is what I see: > version _ platform i386--netbsdelf arch i386 os netbsdelf system i386, netbsdelf status major 2 minor 1.1 year 2005 month 06 day 20 language R > help(Hershey) : : If the 'vfont' argument

I'm presumably missing something very obvious, but how does one use the key.opts argument in labcurve (via Ecdf)? In this example, I want the key to be big and have a blue background, but it isn't and doesn't. ch <- rnorm(1000, 200, 40) sex <- factor(sample(c('female','male'), 1000, TRUE)) Ecdf(~ch, group=sex, label.curves=list(keys=c("f",

Hi all, I am struggling with remote R sessions and a (I suspect) locale related encoding problem: Using the X11 device (X11forwarding enabled), whenever I try to plot something containing umlauts using ggplot2, I am seeing sth like ,---- | Error in grid.Call(L_stringMetric, as.graphicsAnnot(x$label)) : | invalid use of -61 < 0 in 'X11_MetricInfo' `---- Using base graphics is fine

Dear list, Following a recent enquiry, I've been playing with the idea of creating a colour gradient for a polygon, using the Grid package. The idea is to draw a number of stripes of different colours, using the grid.clip function. Below is my current attempt at this, library(grid) rotate.polygon <- function(g, angle=0){ # utility function, works fine matR <- matrix(c(cos(angle),

I color some area grey with polygon() (with a red border) and then I want to have the dashed red border in the legend as well. How do I manage it? And I want to mix (latex) expressions with text in my legend. Just execute my lines below and you know want I mean. Or pass by at http://de.wikipedia.org/wiki/Bild:GBM.png to see the picture online. Thomas bm <- function(n=500, from=0, to=1) {

Deepayan, Paul: Thanks very much for the very useful leads. I just spent some time this afternoon implementing your suggestions and my early test results are very encouraging. Paul, I understand the potential device re-sizing issue with the convert family of functions in grid, and will be in touch in case it becomes problematic for my applications. I very much look forward to your upcoming

Dear list, As a minimal test of a more complex grid layout, I'm trying to find a clean and efficient way to arrange text grobs in a rectangular layout. The labels may be expressions, or text with a fontsize different of the default, which means that the cell sizes should probably be calculated using grobWidth() and grobHeight() as opposed to simpler stringWidth() and stringHeight().

Hershey Felder, The Secrets About Musical Instruments And Physics Every sound produced by a musical instrument has a physical explication, the way instruments are created and the type of materials that are used define in a unique way the resulting sound. The sound wave is a transfer of energy that doesn't imply matter. Within a more theoretical approach sounds are Mechanical Longitudinal

Dear R users, I would like to use sub- and super-script in axis labels. I assume this is best done using Hershey symbols. When trying to find information on using Hershey font symbols in axis labels, I came across the following discussion thread: http://maths.newcastle.edu.au/~rking/R/help/02a/1857.html Have Hershey font implementations moved on since then? Thanks, Sander. --

Hello! The question is simple: What is the escape sequence for a new line when using Hershey fonts? I obviously tried '\n' but it didn't work (see the sample below). I looked at 'demo(Hershey)' but all it only shows escape sequences for printable characters. The sample I've been using to try to find the escape sequence is below. You can comment or un-comment the

Hello R users, I am new to R, so this may be a very stupid question. I need to subscript the dotted circle (Hershey escape sequence "\\SO") to a string. I tried using text(.5,.5,substitute( R[disk] == 5 R["\\SO"] ) ) but it turns out to be a syntax error. Do you have any suggestion? Thanks Gaetano

Hi, I'd like to know if it is possible to use Hershey vector fonts to create very primitive musical notation. If I can hang some whole notes on these lines X11() plot(0,0, xlim=c(0,10), ylim=c(0,10)) # Staves: for (i in c(seq(from=2,to=2.8,by=0.2),seq(from=4,to=4.8,by=0.2))) { abline(h=i) } it is enough. Best wishes, Atte Tenkanen University of Turku, Finland

I wonder if we couldn't just use the PNG , SVG, support from the GNU plotutils from which we already have the Hershey scalable vector fonts [-> help(Hershey)] The new plotutils (July 2000) do support these (and will probably even better in the future, i.e., we can build on others people free software. Paul [who built "Hershey" into R], do you think this path is worth pursuing?