Soft Drivers

PLOT provides a soft driver facility that lets you define your own named device drivers, each based on a combination of a standard driver and a set of command options appropriate to that standard driver.

• To define a soft driver, use the following command syntax:

  soft_driver|standard_driver|option1, option2, ...

  Where:

  • soft_driver = The name to be allocated to your new driver.

  • standard_driver = One of the driver names listed in Output Formats That PLOT Can Generate and Running PLOT.

  • option1, option2 = any command line options applicable to standard_driver.

  The three parts of the command are separated by | (vertical bar) characters. The options (and any associated values) in the third part are separated by commas. If the command line becomes too long, a \ (backslash) character may be used to allow continuation of the command on the next line. Spaces at the start of continuation lines are ignored.

  The name soft_driver must not be the same as that of any of the standard device drivers. Names are not case sensitive; that is, upper and lower case characters are treated equally.

  All soft driver definitions are held in the file PLOTDRIVERS. PLOT looks for this file firstly in the directory defined by the CADC_PLOT_DIR environment variable, then in the current directory and finally in the same directory as the Plot Utility Program itself.