🚀 go-pugleaf

Anthonie Muller <awjm@holyrood.ed.ac.uk> writes:

> I am looking for software that visualizes or describes
> ferroelectric/pyroelectric phase transitions.

Xtal-3d can be used to do this using VRML. It can create two 3D drawings 
of the crystal structure and then flip between them to illustrate the 
movement of atoms in a structural transition.  This vibrating 3D drawing
can then be rotated and zoomed on the computer screen.

Xtal-3d will run on many different computers, and there is even a WWW version
on http://www.ill.fr/dif, BUT the dynamic flipping between structures only
works at present on Silicon Graphics (SGI) machines.  

With a little knowledge of VRML :-) you should eventually be able to make it 
work on a PC if you were to construct two (or more) VRML drawings (eg using 
the WWW version), and then edit the resulting ASCII files to use the dynamic 
VRML-1 extensions in Netscape's live3D for Windows. (You could also write a 
dynamic file in VRML-2, with somewhat more effort :-)

I haven't tried this on a PC, but could help if you have an SGI machine.

Alan Hewat, ILL Grenoble, FRANCE (hewat@ill.fr) fax (33) 76.48.39.06
ftp://ftp.ill.fr/pub/dif                      http://www.ill.fr/dif/