From: Jonathan Albert C Vallar <[EMAIL PROTECTED]>
Date: Friday, April 13, 2001 11:45 AM
>Good day! I am going to create a program that is the same as the
Moleculeviewer found in the Jdk1.2.2 or Jdk1.3 demo applets.
>..
>How will I be able to check the bonding of the molecules?Bonding refers to
the correct position of one molecule to another one.
It's hard to use the open-loop scene graph to model closed-loop structures
(closed loop in the case of a molecule viewer would mean satisfying
simultaneous constraints on relative distances among more than two
neighboring molecules.) Satisfying simultaneous constraints is the business
of inverse kinematics (IK). IK usually concerns itself with mechanisms or
articulated figures, but the methods are applicable to the solution of a
static structure.
I described my approach to closing the loop on the Java 3D scene graph using
a Constraint node class in www.BrockEng.com/VMech/IK/IKSG.pdf.
If you're building in VRML, you'll do it in scripts. There's a useful
amount of stuff on this on the web if you look for +"inverse kinematics"
+VRML.
Fred
===========================================================================
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".
