[x3d-public] HAnim LOA-4 Hierarchy joint and segment name audit - successful

[Brutzman, Donald (Don) (CIV)]

I performed a pen-and-paper audit between HAnim 4.9.6.4 LOA-4 hierarchy and
our X3DUOM-based list of autogenerated joint + segment names.  Photo
follows.  Took about an hour.

 

*	HAnim2 LOA4 Hierarchy from X3DUOM: Joint and Segment name pairs
*	https://www.web3d.org/x3d/stylesheets/HAnimLOA4HierarchyTable.txt

 

*	Authoritative reference: HAnim version 2, Part 1: Humanoid animation
(HAnim) architecture, 
*	clause 4 Concepts, section 4.9.6.4 LOA-4 hierarchy
*
https://www.web3d.org/documents/specifications/19774/V2.0/Architecture/conce
pts.html#Hierarchy4
*	clause 4 Concepts, Figure 4.7 -- LOA-4 joints
*
https://www.web3d.org/documents/specifications/19774/V2.0/Architecture/conce
pts.html#f-LOA4Joints

 

One flaw exists in specification diagram, as follows.  (I think the # sign
might have occurred when my head hit the keyboard, falling asleep.)

*	# : l_tarsal_proximal_phalanx_2 should be
*	l_metatarsophalangeal_2 :l_tarsal_proximal_phalanx_2

 

This problem is captured in following Mantis issue and awaits a future
revision.

 

*	Mantis 1344: 4.9.6.4 LOA-4 hierarchy table has an extraneous # sign
*	https://www.web3d.org/member-only/mantis/view.php?id=1344

 

Everything looks good. So we can continue with confidence that all of our
corresponding X3D Schematron, X3DJSAIL (java) and X3DPSAIL (python)
diagnostics for joint and segment names are correct.

 

Have confident fun with X3D4 HAnim2 diagnostics!  8)

 

all the best, Don

-- 

Don Brutzman  Naval Postgraduate School, Code USW/Br        brutzman at nps.edu

Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA    +1.831.656.2149

X3D graphics, virtual worlds, Navy robotics https://
faculty.nps.edu/brutzman





 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20230222/b2045520/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_1549.jpg
Type: image/jpeg
Size: 133309 bytes
Desc: not available
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20230222/b2045520/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 5353 bytes
Desc: not available
URL: <http://web3d.org/pipermail/x3d-public_web3d.org/attachments/20230222/b2045520/attachment-0001.p7s>