Digitization of stereo images (DIGIT)

• Introduction
• Read an ASCII bitmap file (DIGPBM)
• Read an ASCII greymap file (DIGPGM)
• Display digitized PBM or PGM file (DIGGRA)
• Read Xfig digitized output (DIGXFI)
• Initial reconstruction of 3D from 2D coordinates (DIG2T3)
• Optimise 3D coordinates with 2D and 3D restraints (DIGOPT)
• Tighten 3D restraints on Ca-Ca distances (DIGTGT)
• Relax 3D restraints on Ca-Ca distances (DIGREL)
• Show current 2D coordinates in the XFIG coordinate system (DIGSH2)
• Write 3D coordinates to a PDB file (DIGPDB)
• Parameters.
  • Show digit parameters (DIGSHO)
  • Line width used for 2D optimisation (DIGLWI)
  • Refining X, Y and Z scales with the digitized image (DIGSCL)
  • Set ratio between 2D and 3D constraints for optimizing (DIGRAT)
  • Set optimal distance between adjacent Ca atoms (DIGC12)
  • Set minimal distance between 1-3 Ca atoms (DIGC13)
  • Set stereo angle used by DIG2T3 (DIGSTA)
  • Set number of residues to be refined at the same time (DIGNRS)
• Example