Example procedures

These examples are intended to show some of the features of PONGO and also provide examples of complex procedures for both the ICL and CL command-languages. All these procedures can be found in the directories $PONGO_EXAMPLES and pongoexamples$ respectively. ICL examples have file extensions .icl and CL examples .cl.

The ICL procedures will prompt for a graphics device and should be invoked from the ICL> prompt using the ICL command load, e.g. :

ICL> load $PONGO_EXAMPLES/ppdotdiag

and their execution can be followed if the ICL command set trace has previously been executed.

The CL procedures are defined as tasks by the pongo command and can be run by just typing their name i.e. :

po> ppdotdiag

Note that some of the examples involve the colour representation of lines, which may be difficult to see on a greyscale device (e.g. on a monochrome Postscript device). It is recommended that a colour image display device is used to run the example procedures.