XmLmctep

Fonctions :

XmLmctep is a program dedicated to the visualization of crystal structures. Atoms may be represented by spheres or ellipsoids, and chimical link using cylinders.

XmLmctep is valid for the 230 space groups. It only needs a data file containing informations on the atoms of the asymetric unit of the crystal. Other data necessary to the program (space group name, cell parameters ...) are entered using menus, as well as options (rotation angles, zoom, colors ...).

If the computer used is equiped with a graphic processor and PHIGS or GL library is available, XmLmctep allows the real time manipulation of a simplified view of the crystal structure, in view of choosing a good view point, before the computation of a realistic final image.

Mandatory ressources :

Unix computer with a C compiler, X-Window and OSF/Motif libraries. Color X Terminal.
To use the real time version it is necessary to be logged directly on the screen of the graphic machine (for example Silicon-Graphics) and to have access to PHIGS or GL libraries.

Example :

An example is described in the documentation. This is a computed result image:

Grosse image quartz

Documentation :

See the publications:

A.Soyer
LMCTEP: software for crystal structure representation.
Journal of Applied Crystallography, Vol. 26 (1993) 495

A.Soyer et A.Rimsky
Logiciel de génération et visualisation de structures cristallines.
Journal of Applied Crystallography, Vol. 25 part 2 (1992) 214-220

A (rather poor) documentation is available in ascii. You may consult it by clicking here

Distribution :

Sources of the program are freely available (without guaranty) by ftp, in form of compressed tar file :
XmLmctep.tar.Z from the external network, or XmLmctep.tar.Z from the local network.

Updated 2002/06/05

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