Bounding Rectangle for an Ellipse
Date: 6/28/96 at 9:36:18 From: The.Carl.Group@dns2.noc.best.net, Inc. Subject: Bounding Rectangle for an Ellipse Dear Dr. Math, I work for a multimedia lab in Cupertino, CA. I am currently working on programs to transition between two screens on the PC. My question involves Ellipses: I would like to know if there is a general equation for a bounding rectangle of an ellipse. I found your general equation for an ellipse, but I am having trouble finding its related rectangle. Thank You, Matthew Carl The Carl Group, Inc. Intern Developer
Date: 6/28/96 at 14:53:11 From: Doctor Ethan Subject: Re: Bounding Rectangle for an Ellipse Well, if you have the general equation for the ellipse then you have the center point and you have the partial radia values (usually a and b). Then if (x,y) is the center, (x-a,y-b) (x-a,y+b) (x+a,y-b) (x+a y+b) are the corners of the rectangle that you need. Hope that helps. -Doctor Ethan, The Math Forum Check out our web site! http://mathforum.org/dr.math/
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