Hi Adam, The next version of ggplot2 supports the build-in R plotting symbols that have different fills and borders, so you can do something like:
geom_point(aes(colour=TRT), fill="red", colour="black", shape=21) Otherwise in the current version you can do: ggplot(data.frame(x = runif(20), y = runif(20)), aes(x, y)) + geom_point(size = 3, colour = "black") + geom_point(size = 2, colour = "red") The key difference to your code is that it's all on one plot, and I'm manually setting the colours, rather than to using scales. I also just used a smaller point rather than the matching hollow glyph, which makes things a little easier (and reverses the orders of the colours). Hadley On Wed, Sep 10, 2008 at 9:37 AM, Adam Marsh <[EMAIL PROTECTED]> wrote: > The graphic design elements in ggplot2 are so well done for color > graphics. Thank you! For BW publication graphs, there are a few > options I would like to be able to tweak, but can't seem to find the > grob handles necessary OR the right plotting strategy. Here's one > problem I've been puzzling over: > > Q> How do you plot points with a grey fill and a black outline around > the edge? > > I haven't been able to find the MatLab equivalent of > "MarkerEdgeColor" so > I've been working on trying to overlay two plots of the same points, > one plotted with fills and the other plotted with edge outlines (here > is my conceptual code): > > pfill <- ggplot(data=DF, aes(x=X, y=Y)) + > geom_point(aes(colour=TRT),size=4) + > scale_colour_grey(end=0.8) + > theme_bw > > pedge <- ggplot(data=DF, aes(x=X, y=Y)) + > geom_point(aes(colour=TRT),size=4) + > scale_colour_grey(end=0.8) + > scale_shape(solid=FALSE) + > theme_bw > > However, I can't figure out the correct syntax, if this is even the > right way to go about it. Any suggestions as to the best approach to > achieve filled points with an edge outline would be greatly appreciated. > > > --------------------------------------------------- > Adam G. Marsh, Ph.D. > Associate Professor > Marine Biological Sciences > University of Delaware > Lewes, DE 19958 > 302.645.4367 > ------------------------------------------------ > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- http://had.co.nz/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
