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Text File | 1994-10-28 | 6.9 KB | 127 lines | [TEXT/ttxt] |
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-
- RasMol 2.5
- Molecular Graphics Visualisation tool.
-
- Roger Sayle
- BioMolecular Structures Group
- Glaxo Research & Development
- Greenford, Middlesex, UK.
- October 1994
-
-
- This posting is to announce the release of RasMol version 2.5. This
- latest version is available for the Apple Machintosh and PowerMac in
- addition to UNIX, VMS and Microsoft Windows versions. RasMol is a molecular
- graphics program intended for the visualisation of proteins, nucleic acids
- and small molecules. The program is aimed at display, teaching and
- generation of publication quality images. The program has been developed
- at the University of Edinburgh's Biocomputing Research Unit and the
- Biomolecular Structure Department at Glaxo Research and Development,
- Greenford, UK. This latest version is has a significant number of
- improvements over RasMol 2.4. In addition to performance improvements and
- bug fixes, the major enhancements are described at the end of this message.
- For a complete list of changes refer to the distribution's "ChangeLog".
-
- RasMol reads in molecular co-ordinate files in a number of formats and
- interactively displays the molecule on the screen in a variety of colour
- schemes and representations. Currently supported input file formats include
- Brookhaven Protein Databank (PDB), Tripos' Alchemy and Sybyl Mol2 formats,
- Molecular Design Limited's (MDL) Mol file format, Minnesota Supercomputer
- Center's (MSC) XMol XYZ format and CHARMm format files. If connectivity
- information and/or secondary structure information is not contained in the
- file this is calculated automatically. The loaded molecule may be shown as
- wireframe, cylinder (Dreiding) stick bonds, alpha-carbon trace, spacefilling
- (CPK) spheres, macromolecular ribbons (either smooth shaded solid ribbons
- or parallel strands), hydrogen bonding and dot surface. Atoms may also be
- labelled with arbitrary text strings. Different parts of the molecule may be
- displayed and coloured independently of the rest of the molecule or shown in
- different representations simultaneously. The space filling spheres can even
- be shadowed. The displayed molecule may be rotated, translated, zoomed,
- z-clipped (slabbed) interactively using either the mouse, the scroll bars,
- the command line or an attached dials box. RasMol can read a prepared list
- of commands from a `script' file (or via interprocess communication) to
- allow a given image or viewpoint to be restored quickly. RasMol can also
- create a script file containing the commands required to regenerate the
- current image. Finally the rendered image may be written out in a variety
- of formats including both raster and vector PostScript, GIF, PPM, BMP, PICT,
- Sun rasterfile or as a MolScript input script or Kinemage.
-
- RasMol will run on a wide range of architectures and systems including
- SGI, sun4, sun3, sun386i, DEC, HP and E&S workstations, IBM RS/6000,
- Cray, Sequent, DEC Alpha (OSF/1, OpenVMS and Windows NT), IBM PC (under
- Microsoft Windows, Windows NT, OS/2, Linux, BSD386 and *BSD), Apple
- Machintosh (System 7.0 or later), PowerMac and VAX VMS (under DEC Windows).
- UNIX and VMS versions require an 8bit, 24bit or 32bit X Windows frame
- buffer (X11R4 or later). The X Windows version of RasMol provides optional
- support for a hardware dials box and accelerated shared memory rendering
- (via the XInput and MIT-SHM extensions) if available.
-
- The source code is public domain and freely distributable provided that
- the original author is suitably acknowledged. The complete source code and
- user documentation may be obtained by anonymous FTP from ftp.dcs.ed.ac.uk
- [129.215.160.5] in the directory /pub/rasmol. The source code, documentation
- and Microsoft Windows executables are stored in several files appropriate
- for the receiving operating system. Please read the "README" file in the
- distribution directory. UNIX and VAX systems should retreive either
- RasMol2.tar.Z, RasMol2.tar.gz. Apple Mac users should retrieve rasmac.sit.hqx.
- Microsoft Windows users should retrieve raswin.zip and optionally the Visual
- Basic package rasmenu.zip. All these files include source code, on-line help,
- user manual and reference card. RasMac.sit.hqx, RasWin.zip and RasMenu.zip
- also contain executables for the required platform. Please remember to use
- "binary" mode when transferring these files between systems. Check that the
- file size is the same before and after transfer.
-
- Any comments, suggestions or questions about the package may be directed
- to the author at "rasmol@ggr.co.uk".
-
-
-
- Enhancements since Version 2.4 [June 1994]
-
- o Developed an Apple Machintosh version of RasMol. `RasMac' requires
- System 7.0 or later and can compile under Symantec C/C++ or Metrowerks
- C/C++ compilers for either the 68k or PPC. A `fat' binary is included
- in the Machintosh distribution. RasMac can be used under MacMosaic.
-
- o Implemented atom labelling, any atom (or set of atoms) may be labelled
- by an arbitrary text string. Embedded characters allow the display of
- atomic symbol, residue name, residue number, atom name etc...
-
- o Added support for the entire periodic table of elements. In addition
- to VdW radii and CPK colours this allows atoms to be selected by name,
- e.g. "select copper,zinc", and by atomic number, "select elemno>=35".
-
- o Improved the algorithms used to determine connectivity. RasMol now
- uses the covalent radius of each element to determine bonding for
- `small molecules'. The algorithm used may be selected with the
- "connect" command. This also fixes problems reading CONECT records
- in non-standard PDB files and allows PDB files to specify bond order.
-
- o RasMol now allows distances and radii to be given in Angstroms if
- they contain a decimal point. Non-integer values may also be given
- to the "slab", "zoom", "rotate" and "translate" commands.
-
- o Added the ability to generate Kinemage format files for display in
- David Richardson's Mage program (as distributed by Protein Science).
- Added the ability to generate Apple PICT files on all platforms.
-
- o Add the "colour atoms charge" and "colour dots potential" to colour
- code atoms by their charge and dot surfaces by their electrostatic
- potential respectively. [For files containing charge information!]
-
- o Improved the X Windows user interface using Motif-style pull-down
- menus instead of buttons. Added (improved) support for SGI's hardware
- dials boxes.
-
- o Significantly reduced the size of generated RasMol scripts. The "save"
- and "write" commands no longer work in scripts to be safe under Mosaic.
-
-
- Roger
- --
- Roger Sayle, 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 0HE, UK. Fax: (+44) 081 966 4476
-