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SHAPE is a program for drawing the external morphology (faces) of crystals and quasi-crystals, and also for drawing sections of crystals. It will draw any single crystal and most twins and epitaxial intergrowths. You enter the crystal axis lengths and angles, the symbol for the crystal class, and one face of each form (symmetry equivalent set). The crystal can be rotated and scaled. A stereonet can be displayed with the crystal, or stereopairs can be drawn automatically. Screen display and hard copy of even complex, interpenetrating intergrowths may be made in final finished form, with no extraneous lines. SHAPE for Windows and Linux/GTK V7.1. This is a 32-bit program which will run on Windows NT/2000/XP or Windows 95/98/ME or most Intel x86 Linux OS’s (requires Mesa OpenGL libraries). The Windows/Linux version of SHAPE comes in two editions, Standard and Professional. The Professional edition includes two capabilities beyond those of the standard edition: quasi-crystals and sections/growth-zones. Quasi-crystals are crystal-like shapes with non-crystallographic symmetry such as icosahedral. The Professional edition comes with an auxilliary program for generating the Cartesian symmetry matrices for any point symmetry group - the matrices for pentagonal and icosahedral groups are provided already. The Professional edition can draw sections through any crystal, at any orientation and depth. Moreover, sections can be draw sequentially at given time intervals for modelling crystal growth in section. The growth rates of individual forms can be constant with time, or can follow a general exponential growth-rate equation. This can be used to model the growth of twins, epitaxial intergrowths and even intergrowths of non-related crystals. Symmetry-consistent striations may be drawn on any or all forms. Central distances, which determine face sizes, can be changed interactively with the mouse. Anaglyph (two-color stereopair) mode allows 3D viewing with standard red-green glasses. Faces can be labeled with indices or form letters. New for Version 6.0. The 3D display mode, which uses the OpenGL system software can give greater realism and allows shaded depiction of interpenetration twins and epitaxial intergrowths. In this mode it is possible to show symmetry elements, that is rotation axes and mirror planes. VRML (3D) files also can now show symmetry elements. The Donnay-Harker Morphology option can produce a list of forms with central distances dependent on the reticular density or X-ray d-spacing. The mouse cursor can be used to identify faces, resize faces (forms) or rotate the crystal. New forms can be added to truncate edges or corners selected with the mouse. A new Dialog Bar makes some common functions more accessible. Basic crystallographic data can now be imported from a number of external file types (see File Formats Supported). New for Version 7.0 and 7.1. Additions include POV-Ray files and rotation movies. SHAPE Professional for Macintosh V7.1. This version runs on Mac OS 8&9 or OS X.? It is essentially the same as SHAPE for Windows Professional (above). SHAPE for Macintosh Standard V4.5. SHAPE for the Mac OS 8&9 (not OS X) is generally comparable to the Standard edition of SHAPE for Windows (no 3D display or quasi-crystals or sections - not all new features listed above are supported). SHAPE/Mac V4.5 is for PowerMac only. SHAPE for Linux/GTK V7.1. For Intel x86. Crystal Libraries for SHAPE. The main library (700+ crystals) and supplementary library (200+ crystals), are based on the historical sets of wooden models designed in the 19th century by P. Groth and marketed by F. Krantz. Compiled by Ulrich Burchart.
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SHAPE
for crystal morphology
View
some SHAPE images in raster format (may take some time to download).
