Drawing Routines

Download the source code from the class webpage.

This contains the following:

    * README
    * drawing_c.h: Definitions for the drawing routines.
    * drawing.c: Implementations for the drawing routines.
    * Makefile
    * printquad.c: code to generate a ps file displaying the quadtree
    * showquad.c: code to display the quadtree
    * test.pm1: sample input and output

Using the drawing routines:

First use 'make all' to produce the two executables 'showquad' and
'printquad'. These two are stand-alone applications that pick up a text
dump created by your code and display the quadtree. To create the
text-dump, use the drawing routines defined in 'drawing_c.h'. The
documentation in the header should be useful. Once you have created the
text dump (it need not have the .txt extension), 'showquad dump.txt'
should display the quadtree on the screen. Use 'printquad dump.txt >
dump.ps' to generate a postscript file for printing.


NOTE: If your program does not include library <stdio.h> you should
include the statement "#include <stdio.h>" at the beginning of
"drawing_c.h"!!!

User options for showquad

    * [-f float] for font size
    * [-l float] for line width
    * [-s float] to scale the picture
    * [-t] to show text

User options for printquad

    * [-s float] to scale the picture (default is 2)
    * [-f float] for font size (default is 0.5)
    * [-l float] for line width (default is 0.1)
    * [-d float] to change spacing between segments 
                 of a dashed line (default is 0.5)