eMap is a Windows software package for calculations and 3D visualization in crystallography.

A set of simple and easy-to-use dialogs provides a powerful user interface to perform:
- calculations of 3D or 2D electron density or electrostatic potential maps;
- calculation of theoretical structure factors using scattering factors for X-ray
    or electron crystallography with possibilities of editing the atom parameters,
    unit cell parameters and asymmetric unit;
- create images of a given section of calculated maps;
- perform a peak-search (atomic positions) within a calculated map with export in INS file format
    (can be read by any atomic structure visualizing software);
- visualize calculated density maps in 3D; rotate in real-time;
- manipulate with a list of reflections (expanding etc.) using built-in space group explorer
    which supports both space (530 settings for all 230 space groups)
    and plane groups (21 settings for 17 plane groups);
- simulate diffraction patterns.
- NEW! simulate precession diffraction patterns in 2 modes - final and animated views.

eMap is a very useful program for research and teaching in the fields of materials sciences,
solid state physics, X-Ray and electron crystallography and electron microscopy.