Re: drawing tilted ellipses?

*To*: mathgroup at smc.vnet.net*Subject*: [mg20548] Re: drawing tilted ellipses?*From*: "James Lawry" <jamesl at numbercraft.co.uk>*Date*: Sat, 30 Oct 1999 00:14:00 -0400*Organization*: (Posted via) U-NET Internet Ltd.*References*: <7v3bmr$5te@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Joe Strout <joe at strout.net> wrote in message news:7v3bmr$5te at smc.vnet.net... > Is it possible to draw an ellipse in Mathematica that is not orthogonal > to the XY axes? E.g., leaning over 30 degrees? > > I thought perhaps I could specify it orthogonally and then apply a > rotation transformation, but the only transformations available seem to > be scaling (Scaled) and translation (Offset). > > Of course I could use a series of line segments, but I want this to be > smooth even when printed on a high-resolution printer. Any tips? Other replies to this message seem to assume that Joe wants to plot an ellipse, which effectively renders it as a series of line segments. I interpret Joe's question as meaning he wants to find a way of rotating the graphics primitive for an ellipse, Circle[{x, y}, {r1, r2}]. I don't know of any way to do this -- it seems you are stuck with ellipses whose major and minor axes are parallel to the display coordinate axes. James Lawry.