Editing envelop maps (MAPEDT)

• Introduction.
• Principle of operation.
• Reading a density map GETMFF
• Reading an envelop (GETENV)
• Setting map parameters PARMAP
• Setting the default map DEFMAP
• Showing map parameters SHOMAP
• Switching between pick modes (FIX0)
• Switching between pick modes (FIX1)
• Switching between pick modes (NOTFIX)
• Editing an envelop (GRAMPP)
• New screen menu options for GRAMPP
  • Rfsh
  • Next
  • Fix0
  • Fix1
  • Nofx
  • Sphe
  • Circ
  • Rect