# phpman > perldoc > Font::TTF::Anchor

## NAME
    [Font::TTF::Anchor](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3AAnchor/markdown) - Anchor points for GPOS tables

## DESCRIPTION
    The Anchor defines an anchor point on a glyph providing various information depending on how
    much is available, including such information as the co-ordinates, a curve point and even device
    specific modifiers.

## INSTANCE VARIABLES
    x   XCoordinate of the anchor point

    y   YCoordinate of the anchor point

    p   Curve point on the glyph to use as the anchor point

    xdev
        Device table (delta) for the xcoordinate

    ydev
        Device table (delta) for the ycoordinate

    xid XIdAnchor for multiple master horizontal metric id

    yid YIdAnchor for multiple master vertical metric id

## METHODS
  new
    Creates a new Anchor

  read($fh)
    Reads the anchor from the given file handle at that point. The file handle is left at an
    arbitrary read point, usually the end of something!

  out($fh, $style)
    Outputs the Anchor to the given file handle at this point also addressing issues of deltas. If
    $style is set, then no output is sent to the file handle. The return value is the output string.

  $a->out_xml($context)
    Outputs the anchor in XML

## 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.