Rotation of parallel lines
On Nov 18, 2013, at 7:27 AM, Tonio wrote:
Dear list, Consider these two parallel segments in a plot. plot(c(1, 6), c(2, 2), type="n", xlim=c(0, 7), ylim=c(-2, 6)) segments(1, 1, 6, 1) segments(1, 3, 6, 3) How can I rotate the two lines together by a defined angle?
Base graphics do not support object operations. You need to do the calculation and redraw the plot. Either lattice or ggplot2 which depend upon the "grid" system would have the possibility to "rotate" a component.
David Winsemius, MD Alameda, CA, USA