Backplot File Variables

$BKPDTA

Backplot file output coordinates

Type: Numeric, Read/Write

This variable defines the backplot file output coordinates. Valid values are 0 for machine coordinates and 1 for cutter location (CL) file coordinates.

$BKPINT

Back plot the effect of rotary axis motion on the tool tip.

Type: Logical, Read/Write

Setting $BKPINT to $TRUE will generate intermediate tool position data in the back plot file, showing the effect of rotary motion on the tool tip path.

$BKPON

Backplotting is currently on

Type: Logical, Read-only

This variable indicates if backplotting is currently on. It is set to $TRUE if backplotting is on, $FALSE if backplotting is off.

$BKPOUT

Direct all output to backplot file

Type: Logical, Read/Write

This variable allows the user to direct all output to the backplot file. When the variable is set to $TRUE, the input record is not processed; it is simply written to the backplot file. The default for this variable is $FALSE, normal processing.

$BKPROT

Maximum delta rotary move for back plot purposes.

Type: Numeric, Read/Write

When $BKPINT is set, the $BKPROT variable defines the maximum delta rotary move between each intermediate back plot point. Lower values produce more detailed output, at the expense of a larger back plot file.

$BKPTYP

Backplot file type

Type: Numeric, Read/Write

This variable controls the output format of the backplot file. If the variable is set to 0, the backplot is output using a binary format. If the variable is set to 1, the backplot file is written in an ASCII APT-like format.