png printing (PR#2192)

[mark0060@tc.umn.edu]

Full_Name: Kristian Eric Markon
Version: 1.6
OS: Win 98
Submission from: (NULL) (24.26.167.90)


I noticed sort of an odd bug when I was printing out figures to png files.

It's a bit difficult to explain how to reproduce exactly, because it depends on
a lot of data specific to my situation.

Basically, if I plot the figure to the screen, it looks exactly as it should. If
I plot the figure to jpeg, it looks exactly as it should. However, if I plot it
to a png, a plot appears, but various parameters (e.g., title, ylim, etc.) are
different. 

I can sometimes reproduce something that's somewhat similar through the
following:

temp = c("hi", "hey there", "whatcha doin")

plot(rnorm(100), rnorm(100), main=temp[3]) # should appear as one would expect

jpeg("c:/temp/temp.jpeg")
plot(rnorm(100), rnorm(100), main=temp[3]) # should appear as one would expect
dev.off()

png("c:/temp/temp.png")
plot(rnorm(100), rnorm(100), main=temp[3]) # either very small or no main title
dev.off()


It gets even more complicated with the plotting I'm doing, because, e.g., rather
than plotting a figure with no title, it will plot a title, but the wrong title.

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