Hi there, When I am using the png() function as the following to generate a PNG file on Mac OSX Tiger, I found that the bit depth is 32. But I need 24 bit depth PNG. What should I do?
> png(filename="/Users/usg/Desktop/new.png") > plot(1:20) > dev.off() To avoid using "cairo", and R-2.7.0 does not find a Xlib on my Mac, I also tried this one: > png(filename="/Users/usg/Desktop/new.png", type ="quartz" ) > plot(1:20) > dev.off() It does not work, either. The manual says "png will use a palette if there are less than 256 colours on the page, and record a 24-bit RGB file otherwise (or a 32-bit RGBA file if type = "cairo" and non-opaque colours are used)." I don't have to set the palette less than 256 colours, I just want a true color png file. Any help is appreciated. Thanks in advance. Long _______________________________________________ R-SIG-Mac mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-mac
