OPTIONS: ON-ERROR-TERMINATE


DUMP-ON-GRAPHICS-ERROR

  Produces a dump when encoutering certain errors while projecting
  planes and removing hidden parts. Program execution is terminated
  after the dump has been created.

  The dump for PLASPL is written to a file called "plaspl.dat" and
  contains the following pieces of information:

  Line 1: The tolerances EPSGX, EPSGY, EPSGZ + their set flag
  Line 2: Parameters (a,b,c,d) and colour index of plane 1
  Line 3: The number of points on curve 1, N1
  Lines 4 to N1+3: The coordinates of the points on curve 1
  Line N1+4: Parameters (a,b,c,d) and colour index of plane 2
  Line N1+5: The number of points on curve 2, N2
  Lines N1+6 to N1+N2+5: The coordinates of the points on curve 2

  The dump for GRAREA is written to a file called "grarea.dat" and
  contains the following pieces of information:

  Line 1: The tolerances EPSGX, EPSGY, EPSGZ + their set flag
  Line 2: Frame dimensions (xmin, ymin, xmax, ymax)
  Line 3: The number of points on the curve
  Lines 4 to N+3: The (x,y) coordinates of the points

  The dumps for BUTFLY and BUTFLD are written to files called
  "butfly.dat" and "butfld.dat". These files are written after
  elimination of multiply occuring points. The files contain
  the following pieces of information:

  Line 1: The tolerances EPSGX, EPSGY, EPSGZ + their set flag
  Line 2: The number of points on the curve
  Lines 3 to N+2: The coordinates of the points

  This is a debugging option.

  [This option is switched off initially.]

Keyword index. Formatted on 10/11/98.