[EMAIL PROTECTED] wrote: > Hi, > > This is not a bug, but an enhancement suggestion. "strwidth" only gives the > width of the text according to the x-axis user coordinates, and similarly > for "strheight". Even if the par setting "srt" is changed to rotate the > text, the resulting width (resp. height) is in terms of the non-rotated > text. Currently, if I want to know how much space to leave for vertical > text in the user coordinates, I manually invert the user coordinates, and > then change them back. > > Even if arbitrary "srt" is too much, just having the option for 90 degree > rotation would be helpful. If it were implemented for arbitrary srt, then I > personally think it's x-axis and y-axis dimensions are of interest, and not > the actual length of the rotated text.
I think it's pretty standard to measure text this way. You can get a very good approximation to arbitrary rotation by treating the text as a width by height rectangle, and using a bit of trig to calculation the rotated dimensions of that - but it's much harder to get the original dimensions back after doing this. So I'd suggest that you should write a little function to calculate rotated dimensions, document it, and offer it to one of the Misc collections. If you want to waste a lot of time on it you could try to do it in a way that can tell the difference between "Ay" and "yA" after a 45 degree rotation (the first is wider), but I think it will be hard to get that right. Duncan Murdoch ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
