Re: [JAVA2D] How to create a circle using GeneralPath.

[Jérôme Thièvre]

Hi, why don't you use the Ellipse2D classes ? Il you can't use these classes, you should take a look at this page : http://www.whizkidtech.redprince.net/bezier/circle/ The following picture illustrates the solution to draw the quadrant AB : A = (0,R) ; B = (R,0) ; A' = (R*kappa,R) ; B' = (R,R*kappa) kappa = 0.5522847498 if you want to draw the circle with center (x,y) and radius R with GeneralPath, it gives : GeneralPath circle = new GeneralPath(); // First quadrant circle.moveTo(x, y-R); // move to A circle.curveTo(x+R*kappa, y-R, x+R, y-R*kappa, x+R, y); // curve to A', B', B // Second circle.curveTo(x+R, y+R*kappa, x+R*kappa, y+R, x, y+R ); // Third circle.curveTo(x-R*kappa, y+R, x-R, y+R*kappa, x-R, y); // Last circle.curveTo(x-R, y-R*kappa, x-R*kappa, y-R, x, y-R ); // Ensure closeness of the circle circle.closePath; Jérôme Thièvre [EMAIL PROTECTED] a écrit : Hi everyone! I have to create a circle or a sector using GeneralPath. This class has two methods for draw it: curveTo an quadTo. My problem is that i don´t know how to calculate the controls points. I read some about Bezier curve, but i don´t undertand it very well. thanks in advance. [Message sent by forum member 'fordfarline' (fordfarline)] http://forums.java.net/jive/thread.jspa?messageID=170756 =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help". =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".