CaveateDue to problems/limitations in the Delphi development system, Gretep needs Windows to be running in (the normally default) Small Fonts Mode; other wise the window sizes and menus can go very strange. For more information on this, refer to the page on Strange Font Size Problems
GRETEP (Grenoble Thermal Ellipsoids Plot) is quite simple to use and is obtained from the LMGP program suite site at
Gretep will allow you to open Gretep, Shelx, Powder Cell and Lazy Pulvarix files and will lead to the following screen. (Functions of the Icons have been labelled and putting your mouse pointer over the icon will give you a description of its functionality).
The structure can be rotated, translated, etc using click and drag on the mouse.
Selecting the top right Return to Main Menu icon will give you the
following screen where you can change atoms, spacegroup, cell; generation,
fragment searching options; modify bond length limits.
Selecting the Plot Icon will then plot the structure with the
It is possible to zoom in on parts of the structure using the Zoom Icon.
Or the Scale slide bar to zoom.
The more powerful your computer, the faster Gretep will display and allow the
smoother the rotation of larger structures using the mouse.
If you find Thermal Ellipsoids distracting, you can convert all the atoms to display in isotropic mode using the isotropic switch.