From: utzoo!decvax!harpo!ihps3!ixn5c!inuxc!pur-ee!ecn-pa:ecn-pb:rick
Newsgroups: net.unix-wizards
Title: Re: Hershey Vector Font info sought.
Article-I.D.: ecn-pb.114
Posted: Tue Nov  2 16:43:51 1982
Received: Thu Nov  4 02:50:09 1982
References: sdcsla.146

>From NBS Special Publication 424 "Tables of Coordinates for Hershey's
Repertory of Occidental Type Fonts and Graphic Symbols"

Page 5:

	In the Hershey system, characters are drawn by connecting lines
	between successive (x,y) coordinate paris. The coordinates of
each character are given in 'raster coordinates', which are integers
ranging from +49 to -49. The (x,y) coordinates for each character in
the occidental repertory are given in Appendix A. A useful qunatitiy is
the printer's em, or the distance between the bottoms of two successive
lines of close packed text. The em is 32 raster units for characters in
the principal size, and 21 raster units for the indexical size.
	The table in Appendix A is organized in the following way:  The
first column is the character, the fisrt pair of numbers seperated by
colons (:) are the left and right boundaries of the character is raster
coordinates, and succeeding pairs of numbers set off by colons denote
the (x,y) set for that character. An (x,y) coordinate pair of (-64,0)
indicates that the pen is lifted at that point in the character; a
coordinate pair of (-64,-64) indicates that the end of the character
has been reached.

------------------------

Presumably what you have is Appendix A.  If you intend to do anything
with the tables, buy the book.  It only cost $2.90 when I bought mine
(1978).

Rick Adams