The ELIMINATE line

Syntax

  ELIminate direction range

Description

The ELIMINATE line terminates mesh points along lines in a rectangular grid.

Parameters

direction
  X.direction  =  logical
  Y.direction  =  logical

These parameters determine whether to eliminate points along vertical or horizontal lines. One must be chosen.

range

  IX.Low   =  integer
  IX.High  =  integer
  IY.Low   =  integer
  IY.High  =  integer

Points along every second line within the chosen range is removed. Successive eliminations of the same range remove points along every fourth, eighth line, and so on. For horizontal elimination, the vertical bounds should be decreased by one at each re-elimination of the same region, and conversely for vertical eliminations.

Examples

Points along vertical lines between 10 and 20 are removed.

  ELIM    Y.DIR IY.LO=10 IY.HI=20 IX.LO=1 IX.HI=8
  ELIM    Y.DIR IY.LO=10 IY.HI=20 IX.LO=1 IX.HI=7