Wow.. ok thanks.. I'll delve into the whole thing again and see what I can come up with. Thanks for taking your time to help out! I wish I could give back more to the community myself, but everyone here knows as much or more than I do! - TJ
On 9/27/05, Jim Hurley <[EMAIL PROTECTED]> wrote: > > > > >Message: 3 > >Date: Mon, 26 Sep 2005 18:53:36 -0700 > >From: TJ Frame <[EMAIL PROTECTED]> > >Subject: Re: another yucky geometry question > >To: How to use Revolution <use-revolution@lists.runrev.com> > >Message-ID: <[EMAIL PROTECTED]> > >Content-Type: text/plain; charset=ISO-8859-1 > > > >Thanks so much Jim, but alas, as this screenshot shows neither axis will > >ever be parallel since this is a 2D perspectiev drawing utility. This > second > >image of the link is a screenshot shows a typical VP setup that might > exist > >and all the variations of ellipses that might result... > > http://www.tjframe.com/EllipseExample.htm > > But as I alluded to earlier, Perhaps this would be beyond the scope of > >something I could implement. I know that 3D do ellipses every day, all > day > >long, so I had assumed it would be a straightfoward task. But I guess > they > >use matrix calculations to generate the points of the object rotated and > >stuff. Perhaps I would need to have a 3D underpinning for the ellipse > stuff > >to work.. > > For now I'll put that feature on hold. > > Thanks again guys, > > - TJ > > TJ, > > Using the drawEllipse handler it is not hard to draw an ellipse of > any dimension, at any angle, at any location. It is fairly quick, > about 8 or 9 millisec. But, as I said, there would be a fair bit of > calculation required to GET the proper loc, dimensions, and angle. > You would need to expand on the calculation I used in the stack > "ellipseInAbox" to make the ellipse tangent to the radial lines. A > bit of work, but doable. > > Jim > > _______________________________________________ > use-revolution mailing list > use-revolution@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution > _______________________________________________ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution