Ribbons File Menu.

The File Widget is a PopUp Choice invoked from the Menubar.

Selection of an item opens a File Selection Dialog Widget. These are used to read/write various ASCII files to the disk.

Widget Name (Accelerator Keys) --- description of function

• Save Image (Alt-i) -- set name of binary `*.rgb' file to save
  -- !!! Must hit `PrintScreen' key to start save !!!.
  -- Quality/type of image set via Image Panel and/or View Menu.

• Re-Read Data (none) -- after editing any input file to change something, choose from sub-menu to update the display.

• Save All 3 Startups (Alt-z) -- output the 3 special startup files below immediately, overwriting if they already exist. Creates `ModelName.defaults', `ModelName.orient', and `ModelName.matter',

• Read/Write Startups (Alt-z) -- invoke submenu of items below:
  • Read Orientation (none)
  • Save Orientation (none) -- input/output special `.orient' file of scale/rotation/translation to save/restore a particular view.

  • Read Defaults (none)
  • Save Defaults (none) -- input/output special `.defaults' file to control initial startup, eg, sphere radius scale, ribbon styles, etc.

  • Read Materials (none)
  • Save Materials (none) -- input/output special `.matter' file of material properties and lighting to save/restore a particular coloring scheme.

• Export VRML/Raytracing (none) -- choose from submenu to output special ASCII formats:
  • VRML 2.0 (Alt-w) -- output screen data as a Virtual Reality Modeling Language version 2.0 `*.wrl' file for 3-D viewing on the World Wide Web.
  • Inventor (none) -- output screen data as an SGI Inventor (aka VRML version 1.0) `*.iv' file for 3-D viewing on the World Wide Web.

  • POV-Ray (Alt-v) -- output screen data in the POV-Ray `*.pov' ray-tracer format.
  • Rayshade (none) -- output screen data in the rayshade `*.ray' ray-tracer format.
  • Wavefront (none) -- output ribbon models as Alias Wavefront objects.

  • PS300 (none) -- output ribbon line-drawings as old Evans and Sutherland PS300 firmware.

• Export Ribbons Files (none) -- choose from submenu to output special ribbons files.
  -- All currently `*.cyl' files . -- These depend on the current shape/style/color of the ribbon drawing, below CR stands for the point in the center of the ribbon section for the residue in question:
  • SG-bond (none) -- output all protein intramolecular `disulphides': CR-SG-SG'-CR'
  • CB-bond (none) -- output all protein CR-CB bonds (note: ribbon doesn't go through CA, unless forced with Style Panel). Often edit by hand to get a few selected bonds to hang side chain atoms from.

  • Base-A (none) -- output all nucleic acid `Base Attachments': CR-N1 or CR-N9 (purines). See the t-RNA example .
  • Base-H (none) -- output all nucleic acid `Base H-bonding': CR--MidpointOfPairInteraction. See the DNA example .

  • FlatRib-Cyl (none) -- output `flat' portion of ribbon models as `line drawings'

• Quit (Alt-q) -- Exit the program.