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-
-
- RasMol 2.3
- Molecular Graphics Visualisation tool.
-
- Roger Sayle
- BioMolecular Structures Group
- Glaxo Research & Development
- Greenford, Middlesex, UK.
- February 1994
-
-
- This posting is to announce the public release of RasMol 2.3 molecular
- graphics visualisation program. This package has been developed at the
- University of Edinburgh's Biocomputing Research Unit over the last few
- years, and more recently with financial assitance from a visiting position
- at Glaxo Research and Development. This latest version has a significant
- number of improvements over RasMol 2.2. Most of these enhancements are
- described at the end of this message. For a complete list of additions,
- bug fixes and acknowledgements, refer to the distribution's "ChangeLog".
-
- RasMol is an X Window System tool intended for the visualisation of
- proteins and nucleic acids. It reads Brookhaven Protein Databank (PDB)
- files and interactively renders them in a variety of formats on either an
- 8bit or 24/32bit colour display. The complete source code and user
- documentation for the UNIX/X11, IBM PC/MSWindows and the VMS/DecWindows
- versions may be obtained by anonymous ftp from ftp.dcs.ed.ac.uk
- [129.215.160.5] in the directory /pub/rasmol. All the source code is
- contained in the file RasMol2.tar.Z and the MS Windows source code and
- executable in the file raswin.zip. Both of these files include on-line
- help, hypertext documentation and the previous (dated) version of the
- PostScript user reference manual.
-
- Please remember to use "binary" mode when transferring files between
- UNIX and MSDOS systems. Check that the file size is the same before and
- after transfer. The MSWindows error "No Memory for Application" is
- symptomatic of transfering "raswin.exe" in ASCII mode (corrupting it).
-
- The program is intended for teaching and generating publication
- quality images. The program has both a menu system and a full featured
- command line interface. Different parts and representations of the
- molecule may be coloured or displayed in a number of formats independently.
- Currently supported formats include wireframe, ball and stick, backbone,
- space filling spheres and solid or strands ribbon models. The space filling
- spheres may even be shadowed. The molecule may be manipulated using the
- mouse, the scroll bars, the interactive command line or from a dials box
- (if one is attached). The resulting image may be saved at any point in
- PostScript, GIF, PPM, Sun rasterfile or Microsoft BMP formats. For more
- details see the RasMol reference manual. On a SparcStation, it can shadow
- a 10,000 atom spacefilling protein in less than 10 seconds.
-
- The current version of the program has been tested on sun3, sun4,
- sun386i, SGI, DEC & E&S mips based machines, DEC Alpha (OSF/1 and OpenVMS),
- VAX VMS (under Dec Windows), IBM RS/6000, hp9000, sequent and IBM PC running
- both Linux, BSD386 and *BSD compiled under both gcc and (usually) the native
- compiler. The Microsoft Windows version requires version 7 of the Microsoft
- Optimizing C Compiler or the Visual C++ Compiler and the Microsoft Software
- Development Kit (SDK).
-
- The source code is public domain and freely distributable provided that
- the original author is suitably acknowledged. Any comments, suggestions or
- questions about the package may be directed to either "rasmol@dcs.ed.ac.uk"
- or "rasmol@ggr.co.uk".
-
-
- Enhancements since Version 2.2 [October 1993]
-
- o The mouse can now control X, Y and Z rotations, X and Y translation,
- zooming (scaling) and the Z-clipping plane (slabbing). Mouse bindings
- may be controlled by the "set mouse" command with the parameters
- "rasmol", "insight" or "quanta". The "rasmol" bindings are suitable
- for two button mice.
-
- o Maximum magnification is now dependent upon the size of the molecule,
- allowing magnification by more than 200%. The RasMol "centre" command
- allows the molecule to rotate about a given atom (or centre of gravity
- of an arbitrary set of atoms). The RasMol "reset" command returns the
- viewing transformation to its initial default values.
-
- o RasMol now draws ribbon diagrams of nucleic acids (both DNA and RNA).
- There is also a (developmental) "set ribbons solid" command (and
- corresponding "set ribbons strands") that displays ribbons as
- normal shaded triangles. The command "colour structure" now colours
- proteins by secondary structure assignments.
-
- o RasMol will now read in compressed files (either UNIX compress .Z
- or GNU gzip .z or .gz) decompressing the file automatically. There
- is also an environment variable (RASMOLPDBPATH) to set the default
- file search path (for example pointing to the Brookhaven CD path).
- RasMol now performs '~' expansion on filenames. Filenames no longer
- need be surrounded in quotes.
-
- o RasMol has been completely ported to VAX/VMS, using ASTs to multiplex
- input signals rather than the UNIX select(2) system call. The VMS
- version doesn't (yet) support file decompression, file path searching
- or the X11 shared memory extension.
-
- o The UNIX man pages and on-line help have been substantially rewritten.
- This information is now available as hypertext under Microsoft Help
- (in Windows 3.1) and under "mosaic" in HTML (if you have NCSA's WWW
- viewer).
-
- o There are a number of experimental/development extensions to the RasMol
- "write" command. The "write script" command saves the current viewpoint
- and rendering options (but not yet the molecule representation) to a
- RasMol "script" file. The "write molscript" command generates a MolScript
- script file of the protein from the current viewpoint with the
- appropriate secondary structure assignments (but not yet the scaling,
- clipping or representation). The "write vectps" command saves the
- current image as `vector' PostScript commands rather than as a PostScript
- `image' raster bitmap.
-
- o RasMol now registers itself as a Tcl/Tk client to allow interprocess
- communication. An improved Tk Graphical User Interface will be
- distributed with RasMol 3.0. Several improvements have been made to
- the existing menu system.
-
- o Added the predefined sets "water", "ion", "solvent", "ligand" and
- "bonded". RasMol defaults to "backbone" representation when loading
- files containing no bonded atoms [alpha carbon position only PDB files]
-
- o Added the RasMol "renumber" command to force sequential number of
- macromolecule chains.
-
- --
- Roger Sayle, Protein Biochemistry, INTERNET: ras32425@ggr.co.uk
- Glaxo Research & Development (GRD) ros@dcs.ed.ac.uk
- Greenford Road, Greenford Tel: (+44) 081 966 3567 (direct line)
- Middlesex UB6 0AG, UK. Fax: (+44) 081 423 4070
-
-