Re: [JAVA2D] Area's "constructive area geometry"
hi -- Thanks for your pointers. I was also not familiar with the Weiler-Atherton algorithm. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com === 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".
Re: [JAVA2D] Area's "constructive area geometry"
It's also probably worth looking into following book: "Graphics Gems II (Graphics Gems - IBM)", chapter 1.9. Scanline coherent shape algebra. Best Regards, Alexey Jim Graham wrote: Currently the only mechanism to get access to these sources is via the Peabody project: http://java.sun.com/developer/technicalArticles/J2SE/peabody/ You will have to sign a contributor agreement to see the source code as is described on that page. The code was developed completely in house based on standard principles of dealing with curve and line geometry (i.e. curve subdivision, bezier bounding boxes and convex hulls, etc.). You can google for "bezier curve intersection" to find a number of academic papers on algorithms... ...jim Brien Colwell wrote: hi All, Does anyone know how to obtain the sources to the AreaOp classes? I'm curious to see how its "Constructive Area Geometry" is implemented -- I guess just seeing the add op will illuminate a lot. Also, does anyone know if this is a proprietary Sun technology or based on some known comp. geom. work? I find it very cool! Brien === 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".
Re: [JAVA2D] Area's "constructive area geometry"
Currently the only mechanism to get access to these sources is via the Peabody project: http://java.sun.com/developer/technicalArticles/J2SE/peabody/ You will have to sign a contributor agreement to see the source code as is described on that page. The code was developed completely in house based on standard principles of dealing with curve and line geometry (i.e. curve subdivision, bezier bounding boxes and convex hulls, etc.). You can google for "bezier curve intersection" to find a number of academic papers on algorithms... ...jim Brien Colwell wrote: hi All, Does anyone know how to obtain the sources to the AreaOp classes? I'm curious to see how its "Constructive Area Geometry" is implemented -- I guess just seeing the add op will illuminate a lot. Also, does anyone know if this is a proprietary Sun technology or based on some known comp. geom. work? I find it very cool! Brien === 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".
[JAVA2D] Area's "constructive area geometry"
hi All, Does anyone know how to obtain the sources to the AreaOp classes? I'm curious to see how its "Constructive Area Geometry" is implemented -- I guess just seeing the add op will illuminate a lot. Also, does anyone know if this is a proprietary Sun technology or based on some known comp. geom. work? I find it very cool! Brien - Everyone is raving about the all-new Yahoo! Mail beta. === 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".
