What is more, each cell of orientation matrix is a multiple of
cosinus/sinus functions of rotation angles around each axis. Right now
i can't recall how this matrix looks exactly, but i do remember that
if rotation is made around one axis only (like rotX function does, for
instance), then the cell on the crossing of appropriate row and column
equals 1. For example, for rotY function, the oriention matrix would
look like

?  0  ?
0  1  0
?  0  ?

where question mark is either cosinus or sinus of rotation angle.

But i fully agree that this information has no practical use unless
rotation is made around one axis only.

vladimir
             -=V=-
>-------<=============>-------<
Join in Java community now!
http://JavaCafe.VirtualAve.net/
>-------<=============>-------<

In your previous letter u wrote:
--------------------------------
VG> hi,
VG> transform3D consists of a so called homogeneous 4X4 matrix, where the upper
VG> left 3x3 matrix describes the orientation and the most right column the
VG> translational component (x,y,z,1).

VG> Gernot
VG> [EMAIL PROTECTED]
VG> http://www.janet.de

>> -----Original Message-----
>> From: Juan Jos� Abenza Moreno [mailto:[EMAIL PROTECTED]]
>> Sent: Monday, October 18, 1999 1:46 PM
>> To: [EMAIL PROTECTED]
>> Subject: [JAVA3D] Transform3D Coordinates
>>
>>
>> Does anybody know what is the meaning of each one of the 16
>> coordinates in a
>> Transform3D?
>>
>> Thanks,
>> Juan Jose Abenza
>> [EMAIL PROTECTED]
>>
>> ==============================================================
>> =============
>> 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".
>>

VG> ===========================================================================
VG> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
VG> of the message "signoff JAVA3D-INTEREST".  For general help, send email to
VG> [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 JAVA3D-INTEREST".  For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".

Reply via email to