[R] Another Plotting Hint - changing fill color for points

[Jason Rupert]

Is it possible to change the fill color of a point?  For example, the outer color being "Blue" and inner color being "Grey".  
I've tried changing "col" and "bg", but that does not seem to have the desired effect.

Below is another attempt, but the pixel resolution of the points function does not appear to be high enough for this to work:

figure_file_name_and_path<-paste("Test.wmf", sep="")

vals_200<-rnorm(200)
vals_201<-rnorm(200)

win.metafile(file=as.character(figure_file_name_and_path), pointsize = 10)
plot(-4:4, -4:4, type = "n")# setting up coord. system
points(vals_201, vals_200, col = "blue", bg = "white", pch=19, cex =1.7)
points(vals_201, vals_200, col = "grey", bg = "white", pch=19, cex =1.5)
points(rnorm(100)/2, rnorm(100)/2, col = "blue", bg = "white",  pch=19, cex =1.5)
dev.off()

As a second question, is there any way to increase the pixel resolution of the points produced on the plot so that they are perfect circles.  I just noticed that the fill does not perfectly fill the points on the plot and there are some pixels outside the circle. 

Thanks again.