<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt">Hi list,<br> Anyone know a straightforward way to find the axis-aligned bounding box for an ellipse given:<br>* center x<br>* center y<br>* radius x<br>* radius y<br>* arbitrary affine transformation applied using an svg-style 3x3 matrix<br><br>Right now I'm just doing the trivial calculation for the bbox of the untransformed ellipse, then multiplying the matrix times those coordinates. That gives me a box that includes the ellipse, but I'd like to get the tightest fitting one.<br><br>Thanks,<br>Jonathan<br></div></body></html>