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QMOL

 

Qmol An OpenGL based molecular viewer for Windows


Features


Qmol is a program for viewing molecular structures and animating molecular trajectories. Originally based on the molview demo program by Mark Kilgard (from his book, Programming OpenGL for the X Window System) and inspired by the Xmol program. Qmol is similar to programs like VMD , MolMol, Swiss-Pdb Viewer, MolScript, RasMol, gOpenMol and ICM, but opts for fast, high quality rendering of molecules with an easy to use user interface. It supports the following:

Molecular Display Options
  • Wire frame, Stick figure, Ball and stick, Point, Space-filling, Solid and Flat ribbon, Trace and Tube
  • Display of multiple molecular models (as used in NMR)
  • Animate molecular trajectories
  • Dynamic modification of the color scheme (including color-by-element, color-by-atom-number, color-by-residue-number, color-by-temperature, color-by-occupancy and New: color-by-residue-index)
  • Dynamic lighting
  • Adjust atomic radii (including radii-by-temperature and radii-by-occupancy)
  • Stereo view
  • User defined clipping plane with rendered sphere/plane intersections
  •  Molecular Surfaces
  • New: Simultaneously view and independently manipulate an arbitrary number of molecules.
  • Analysis and Molecular Manipulation
  • New: Superimpose two molecules (by rigid body rotation and translation) with arbitrary atom selection.
  • New: Interactively compute RMSD between two molecules (with arbitrary atom selection).
  • Align all structures in a trajectory against the initial structure
  • Interactively measure bond lengths, bond angles and torsion angles
  • Dynamically adjust user selected torsion angles
  • Display atom labels and coordinate axis
  • Detect and display hydrogen bonds (using the energetic criterion of Kabsch and Sander). NEW: Intermolecular hydrogen bonds are determined in "real time".
  • Import Formats
  • PDB files
  • Compressed PDB files (using zlib) i.e. *.pdb.gz
  • Directly query the Protein Data Bank and display the resulting structure
  • Paste temperature and occupancy PDB fields from the windows clipboard
  • Output Formats
  • Generate AVI movies from a molecular trajectory
  • Print to any Windows supported printer and copy images to the Windows clip board
  • Export images in BMP, PNG and Postscript (using vector, not raster, output)
  • The main focus of the development is now the Windows platform. Other programs that may be of interest:

    • Reference

      Gans J, Shalloway D Qmol:  A program for molecular visualization on Windows based PCs Journal of Molecular Graphics and Modelling 19 557-559 (2001)

    • Movies

      Qmol generates compressed and uncompressed AVI movies at any resolution with either 16 bits-per-pixel (bpp) or 24 bpp color depth. Uncompressed AVI files can be quite large and you may wish to compress them using one of the "built-in" compression formats or with an external program

    • Download for Windows

      Download the executable file here
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    • Screen Shots