PGPLOT Module: PGLEN -- find length of a string in a variety of units
SUBROUTINE PGLEN (UNITS, STRING, XL, YL)
REAL XL, YL
INTEGER UNITS
CHARACTER*(*) STRING
Work out length of a string in x and y directions
Input
UNITS : 0 => answer in normalized device coordinates
1 => answer in inches
2 => answer in mm
3 => answer in absolute device coordinates (dots)
4 => answer in world coordinates
5 => answer as a fraction of the current viewport size
STRING : String of interest
Output
XL : Length of string in x direction
YL : Length of string in y direction