---
name: "Font::TTF::Cvt_"
section: "3pm"
platform: "linux"
package: "perl-font-ttf"
version: "1.06-6"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Font::TTF::Cvt_"
---

# Font::TTF::Cvt\_(3pm)

Control Value Table in a TrueType font

## NAME

Font::TTF::Cvt\_ - Control Value Table in a TrueType font

## 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

- val

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

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

## METHODS

### $t-\>read

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

### $t-\>update

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

## BUGS

None known

## AUTHOR

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

## 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.