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 (drieding) 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 Macintosh (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 [22.214.171.124] 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 "email@example.com".
Copyright (c) 1994 by Roger Saylerasmol@ggr.co.uk