PS
# `rotellipse.m4'
gen_init

[
   E: ellipse shaded "red" outlined "blue"

   A: rotellipse(1,1,outlined "red" shaded "blue") with .w at E.e
     Point_(45)
   B: rotellipse(,,dotted fill_(0.9))
   C: rotellipse(,,colored "red") with .s at last [].n
   thinlines_
   showbox_(A)
   showbox_(B)
   showbox_(C)
   thicklines_

] with .sw at 1,1

PE