Font::AFM man page on BSDi

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lib::Font::AFM(User Contributed Perl Documentatilib::Font::AFM(3)

NAME
       Font::AFM - Interface to Adobe Font Metrics files

SYNOPSIS
	use Font::AFM;
	$h = new Font::AFM "Helvetica";
	$copyright = $h->Notice;
	$w = $h->Wx->{"aring"};
	$w = $h->stringwidth("Gisle", 10);
	$h->dump;  # for debugging

DESCRIPTION
       This module implements the Font::AFM class. Objects of
       this class are initialised from an AFM-file and allows you
       to obtain information about the font and the metrics of
       the various glyphs in the font.

       All measurements in AFM files are given in terms of units
       equal to 1/1000 of the scale factor of the font being
       used. To compute actual sizes in a document, these amounts
       should be multiplied by (scale factor of font)/1000.

       The following methods are available:

       new($fontname)
	  Object constructor. Takes the name of the font as
	  argument. It will croak if the font can not be found.

       latin1_wx_table()
	  Returns a 256 element array, where each element
	  contains the width of the corresponding character in
	  the iso-8859-1 character set.

       stringwidth($string, [$fontsize])
	  Returns the width of the string passed as argument. The
	  string is assumed to be encoded in the iso-8859-1
	  character set.  A second argument can be used to scale
	  the width according to the font size.

       FontName
	  The name of the font as presented to the PostScript
	  language findfont operator, for instance "Times-Roman".

       FullName
	  Unique, human-readable name for an individual font, for
	  instance "Times Roman".

       FamilyName
	  Human-readable name for a group of fonts that are
	  stylistic variants of a single design. All fonts that
	  are member of such a group should have exactly the same
	  FamilyName. Example of a family name is "Times".

24/Aug/1997	       perl 5.005, patch 03			1

lib::Font::AFM(User Contributed Perl Documentatilib::Font::AFM(3)

       Weight
	  Human-readable name for the weight, or "boldness",
	  attribute of a font.	Exampes are Roman, Bold, Light.

       ItalicAngle
	  Angle in degrees counterclockwise from the vertical of
	  the dominant vertical strokes of the font.

       IsFixedPitch
	  If the value is true, it indicated that the font is a
	  fixed-pitch (monospaced) font.

       FontBBox
	  A string of four numbers giving the lower-left x,
	  lower-left y, upper-right x, and upper-right y of the
	  font bounding box. The font bounding box is the
	  smallest rectangle enclosing the shape that would
	  result if all the characters of the font were placed
	  with their origins coincident, and then painted.

       UnderlinePosition
	  Recommended distance from the baseline for positioning
	  underline stokes. This number is the y coordinate of
	  the center of the stroke.

       UnderlineThickness
	  Recommended stroke width for underlining.

       Version
	  Version number of the font.

       Notice
	  Trademark or copyright notice, if applicable.

       Comment
	  Comments found in the AFM file.

       EncodingScheme
	  The name of the standard encoding scheme for the font.
	  Most Adobe fonts use the AdobeStandardEncoding. Special
	  fonts might state FontSpecific.

       CapHeight
	  Usually the y-value of the top of the capital H.

       XHeight
	  Typically the y-value of the top of the lowercase x.

       Ascender
	  Typically the y-value of the top of the lowercase d.

       Descender
	  Typically the y-value of the bottom of the lowercase p.

24/Aug/1997	       perl 5.005, patch 03			2

lib::Font::AFM(User Contributed Perl Documentatilib::Font::AFM(3)

       Wx Returns a hash table that maps from glyph names to the
	  width of that glyph.

       BBox
	  Returns a hash table that maps from glyph names to
	  bounding box information.  The bounding box consist of
	  4 numbers: llx, lly, urx, ury.

       dump
	  Dumps the content of the Font::AFM object to STDOUT.
	  Might sometimes be useful for debugging.

       The AFM specification can be found at:

	  ftp://ftp.adobe.com/pub/adobe/DeveloperSupport/TechNotes/PSfiles/5004.AFM_Spec.ps

ENVIRONMENT
       METRICS	 Contains the path to seach for AFM-files.
		 Format is as for the PATH environment variable.
		 The default path built into this library is:

		  /usr/lib/afm:/usr/local/lib/afm:/usr/openwin/lib/fonts/afm/:.

BUGS
       Kerning data and composite character data is not yet
       parsed.	Ligature data is not parsed.

COPYRIGHT
       Copyright 1995 Gisle Aas. All rights reserved.

       This program is free software; you can redistribute it
       and/or modify it under the same terms as Perl itself.

24/Aug/1997	       perl 5.005, patch 03			3

lib::Font::AFM(User Contributed Perl Documentatilib::Font::AFM(3)

24/Aug/1997	       perl 5.005, patch 03			4

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