An ellipse kept pie angles in its model, but nothing drew or set them. Now
the Transform and Properties panels show Ellipse Properties with Pie Start
Angle, Pie End Angle and Invert Pie, as in Illustrator, and
object.setLiveShape takes {pieStart, pieEnd, invertPie}. The pie runs
counterclockwise on screen from the start angle (0 at 3 o'clock) to the
end angle and closes through the centre; 0 to 360 is the whole ellipse,
an end of 0 means 360, and Invert Pie swaps the angles to show the other
part. One undo step each; a bad angle is an error. The labels are
translated in every complete language. The on-canvas pie widget is still
to come.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>