similar to: Add png image outside plot borders

Dear list, I have two questions regarding grid.symbols() in the grImport package. This package allows you to import a vector graphic in R, and grid.symbols() can be used to plot the resulting glyph at arbitrary locations in a grid viewport. I have tried the code in the grImport vignette, which is most interesting, however I am stuck with two problems: 1- Is there a possibility to create a

Hi, I'd like to fill an existing svg (or png) map with gradient colors. In detail: The file http://commons.wikimedia.org/wiki/File:Karte_%C3%96sterreich_Bundesl%C3%A4nder.svg should be filled with the population density data from this table: http://de.wikipedia.org/wiki/%C3%96sterreich#Verwaltungsgliederung choosing the right color saturation (or whatever). The final result should be something

Hi everyone I'd like to flip grobs (grid graphical objects) along an axis, e.g. flip grobs horizontally or vertically. I couldn't find any hints, neither in the documentation nor by searching the web. Does anybody know how to achieve this? Cheers /thomas

I'd like to paste a zodiac sign on a graph, but it only prints it when I add another unicode ( \u3030) to the desired \u2648 - why? See the examplecode (compare the orange with the skyblue): plot(c(-1,1),c(-4,-2),type="n") text(x=0,y=-3.0,labels="\u2648 \u3030",cex=2.3,col="skyblue") text(x=0,y=-3.2,labels="\u2648",cex=2.3,col="orange")

I am trying to create a plot that has multiple plot characters for each point (e.g. a point within a triangle, a triangle within a square, etc). The workaround I have found to do this is by plotting twice, as in this example: x <- c(1.1, 2.3, 4.6) y <- c(2.0, 1.6, 3.2) plot(x, y) points(x,y, pch=20, col="red", cex=0.5) This works, but perhaps there is a better way to do it in one

Hello R community, I am hoping to use a new package that I just installed called "grImport" to import ps images into R for further manipulation using either base graphics or grid. I downloaded the most recent version of Ghostscript from http://www.cs.wisc.edu/~ghost/ that I could find (v.8.56) for Mac OSX. However, I am apparently quite ignorant about how the required

I couldn't run PostScriptTrace() from the package "grImport" without an error. At first the postscript program couldn't be found. however the problem persisted after the full path the postscript program was indicated. I read earlier post on the subject in vain. See the codes and output below. The file "Senegal_location_map.ps" was originally a "svg" file from:

Hi All: I've been struggling for a while trying to get grImport up and running. I'm on a Windows 7 (home premium 64 bit) machine running R-2.12.2 along with GPL Ghostscript 9.01. I've set my Windows PATH variable to point to the Ghostscript \bin and \lib directories, and I've created the R_GSCMD environment variable pointing to gswin32c.exe. I don't have any experience with

Hello, I am trying to import an .eps file created with Adobe Illustrator and plot it in a Quartz window (I am using R 2.11.1 GUI 1.34 Leopard build 32-bit (5589) on MacOSx.5.8). I thought of using the PostScriptTrace() to convert my .eps file to RGML, and then use readPicture to plot the file, but the first step already fails (cf below). I also had a look at the add.image( ) example,

Hello, I want to place two plots on top of each other. However, the problem is that I can't figure out a simple way to align them correctly. Is there a way to specify this? Since the data is bunch of coordinates and the second layer is an outline of a map (a .ps file I import using the grImport package), I suppose one option would be to specify a set of "artificial" coordinates that

Hi, I have a plot and I would like to overlay a PNG image over it. I'm using the rasterImage function to do this, but the problem I'm facing is working out the coordinates of the upper right corner of the final image in user coordinates. That is I can place the image so the lower left is located at the bottom of the y-axis and the left end of the x-axis. Since my image is say 100px x

Hello R-Help, I want to be able to read in a raster image, plot it with grid.raster or rasterImage and save the image with one pixel per a pixel element from my array. Saved preferably in a common image format. The real goal of my question is to eventually read in images with text on them, manipulate them with my controlled functions, save them without changing the image dimensions, and perform

Dear R-help I want to display an image file in a new plot frame. SVG is my preferred format, but I can also consider PNG, GIF, JPEG, TIFF, and PPM (from ImageMagick). By way of background (although not material to this posting), the image file is generated by a call to 'dot' (part of the 'Graphviz' suite) after the required .dot file has been produced using hand-crafted R code.

Dear useRs: Is there a way to include a raster image (e.g., .gif, .jpg, .bmp) representing a company logo, a school logo, etc. into an R graphic? For example, it would be nice to be able to include the logo of the school into the charts that a student produces for her dissertation. Similarly, while working on a competitive analysis, it would be nice to be able to replace the names of the

Hello, I have been exploring the possibility to transition some code that currently uses image() to use the new rasterImage(). To date, I haven't been able to specify a color look-up strategy that works. For example... nx <- 100 ny <- 100 m <- matrix(data = rep(seq(0,1, length = nx), ny), ncol = nx, nrow = ny, byrow = TRUE) plot(1:nx, 1:ny, type = "n") my.color

Dear all, This may be specific to Mac, I haven't had a chance to test another platform. Consider this, plot(1,1,t="n") rasterImage(matrix(1),1,1,1,1) library(grid) grid.rect(gp=gpar(fill="grey")) The grid.rect covers the full device window as expected. However, when I resize the window ever so slightly (interactive device) the rectGrob is suddenly clipped to the previous

I routinely write graphics into multi-page PDFs, but some graphics (i.e. plots of large spatial datasets using levelplot()) can result in enormous files. I'm curious if there is a better way. For example: #First, make some data: library(lattice) d=expand.grid(x=1:1000,y=1:1000) d$z=rnorm(nrow(d)) #Now, the PDF. The following produces a PDF that's ~50MB.

Has anyone yet tried incorporating rasterImage into the base image() function? It seems to make a *huge* difference, with a very small number of added/changed lines of code. (Of course I have barely tested it at all.) Is there any reason this *shouldn't* go into the next release? > source("image.R") > z <- matrix(runif(1e6),nrow=1000) > image(z) >

How can I insert a vector image in svg or pdf format into a plot. Basically i need the equivalent of what the 'pixmap' package does for bitmap images. Cheers, Will Morris

Hi I have used the amelia command from the Amelia R package. this gives me a number of imputed datasets. This may be a silly question, but i am not a statistician, but I am not sure how to combine these results to obtain the imputed dataset to usse for further statistical analysis. I have looked through the amelia and zelig manuals but still can not find the answer. This maybe because I dont