If you want to apply mangle to your angular mask,
then you will need to define your mask in a format that
mangle can read.
This section describes the possible formats.
The mangle software recognizes a variety of formats
for files defining an angular mask, hereafter called `polygon files'.
All mangle programs read and write polygon files
through the same subroutines
rdmask.c and wrmask.c.
If the worst comes to the worst,
you can look in those subroutines to see what is happening.
For information regarding the input format of polygon files, see:
For information regarding the output format of polygon files, see:
