Prepanel Function for Euler Diagrams
prepanel.euler(x, y, ra, rb, phi, subscripts, ...)X coordinates for the centers.
Y coordinates for the centers.
Semi-major axes.
Semi-minor axes.
Rotation of the ellipse (as the counter-clockwise angle from the positive x-axis to the semi-major axis).
A vector of subscripts (See lattice::xyplot()).
Ignored.
A list of xlim and ylim items.