Font::TTF::Cvt\_(3) User Contributed Perl Documentation Font::TTF::Cvt\_(3)

# [NAME](#NAME)

Font::TTF::Cvt_ - Control Value Table in a TrueType font

# [DESCRIPTION](#DESCRIPTION)

This is a minimal class adding nothing beyond a table, but is a repository for cvt type information for those processes brave enough to address hinting.

# [INSTANCE VARIABLES](#INSTANCE_VARIABLES)

[val](#val)

This is an array of CVT values. Thus access to the CVT is via:

```
    $f->{'cvt_'}{'val'}[$num];
    
```

# [METHODS](#METHODS)

## [$t->read](#$t)

Reads the CVT table into both the tables ' dat' variable and the "val" array.

## [$t->update](#$t~2)

Updates the RAM file copy ' dat' to be the same as the array.

# [BUGS](#BUGS)

None known

# [AUTHOR](#AUTHOR)

Martin Hosken <http://scripts.sil.org/FontUtils>.

# [LICENSING](#LICENSING)

Copyright (c) 1998-2016, SIL International (http://www.sil.org)

This module is released under the terms of the Artistic License 2.0. For details, see the full text of the license in the file LICENSE.

2026-09-25 perl v5.44.0

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Document: Font::TTF::Cvt_(3pm) from perl-font-ttf 1.06-r0 (Chainguard OS)