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From: flip@pixar.UUCP (Flip Phillips)
Newsgroups: sci.math,sci.bio,comp.graphics,comp.sys.mac
Subject: Re: shape-transform graphic programs
Message-ID: <1762@pixar.UUCP>
Date: 27 Apr 88 20:09:49 GMT
References: <1815@ucdavis.ucdavis.edu>
Reply-To: flip@pixar.UUCP (Flip Phillips)
Organization: Pixar -- Marin County, California
Lines: 40

In article <1815@ucdavis.ucdavis.edu> g570907053ea@deneb.ucdavis.edu (0040;0000008043;0;80;142;) writes:
>
>  The classic formA->formB shape mappings done 'freehand' by D'Arcy Thompson
>decades ago have been made into algorithms using the tensor calculus by
>Fred. Bookstein (U. Michigan) since 1975.  Does anyone know of academically
>(or commercially) available software, ideally on a Macintosh, to implement
>Bookstein's methods?  His recent co-authored book, titled something like
>_Morphometry and Evolution_ (~1985) includes core elements as FORTRAN source,
>but that's pretty rudimentary.

I don't have any pointers to commercially available software, but I can
point you to a few things which may interest you. 

A professor I worked with for a while at The Ohio State University
Computer Graphics Research Group, Bill Kolomyjec, (now at Northern Ill. Univ,
DeKalb Ill.) did a lot of imagery of this type. (He was also at Mich.
State) Several projects for his class were based on this interpolation in 2D.

At the Computer Graphics Research Group, Chuck Csuri experimented with 
transformation through interpolation several years ago (60's/70's).

Recently, Tom Hutchinson (now with a west coast computer animation firm)
and Bill Sadler (now at U. of Arizona or arizona State, i don't remember)
did a film called 'Metafable'. (NCGA 1986 or 87) This film relied
heavily on 3D interpolation to convert characters into other characters.
Essentially they took advantage of the shape interpolation alg built into
the animation system there (Twixt, by julian gomez).

Note that I dont think any of these use the Tensor Calc methods of Bernstein
but I thought it may be of some interest. Maybe not...

	-- cheers
		flip





-- 
Flip Phillips                                        {sun | ucbvax}!pixar!flip
Pixar - Marin County, California