Hello Shyam !
Thanks for your remarks.
To vercome this problem check in addition to the "angle" test, whether (at least ) one point of the triangle lies on or very close to the reference plane.
Regards,
George
---------------------------------------------------------------------------------------------------
CONFIDENTIALITY : This e-mail and any attachments are confidential and may be privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person, use it for any purpose or store or copy the information in any medium. =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".