EMAN2 Concepts and Conventions
Symmetry in EMAN2, and generating projections in an asymmetric unit
File Formats, Data storage conventions, and the internal database (what is BDB: ?)
Using EMAN2 in environments with NFS or other network-shared directories
Parameters/Metadata for applications, not associated with a specific image, stored in bdb:project
Modular functions in EMAN2
Many aspects of EMAN2 are modular, meaning new functions can be easily added for a variety of tasks. These categories are used in the GUI and from the command-line, and are not just useful for programmers. For example, the '--process' option in e2proc2d.py and e2proc3d.py uses 'processors' as defined below.
Processors - Filters, masks and other basic image processing operations
Comparators (cmp) - Similarity metrics (cmp) for comparing two images/volumes
Aligners - Algorithms for aligning one image/volume to another
Averagers - Methods for averaging many images/volumes together
Projectors - Generate 2-D projections of 3-D volumes (or 1-D projections of 2-D images)
Reconstructors - Generate 3-D volumetric reconstructions from sets of 2-D images and orientation paramters
Analyzers - Perform various analyses on sets of images/volumes
Symmetries - Permissible symmetries to use in EMAN2
Orientation Generators (orientgen) - Methods for generating sets of orientations filling an asymmetric unit
Information on specific files used in 3-D single particle refinement
This section documents the contents of all of the files produced by running e2refine.py in one of the refine_xx directories.
Similarity matrix image files (simmx_xx, simmx_stg1_xx, proj_simmx_xx)
3-D reconstructions (threed_xx, threed_filt_xx, threed_mask_xx)
Information on specific files used in 2-D reference-free class-averaging
You may also wish to look at /EMAN2/programs/e2refine2d
- input_fp
- input_fp_basis
- input_fp_basis_proj
- classmx_00
- classes_init
- allrefs_XX
- basis_XX
- aliref_XX
- simmx_XX
- input_XX_proj
- classmx_XX
- classes_XX