{
    "mode": "perldoc",
    "parameter": "Font::TTF::Delta",
    "section": "",
    "url": "https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3ADelta/json",
    "generated": "2026-06-16T10:21:24Z",
    "sections": {
        "NAME": {
            "content": "Font::TTF::Delta - Opentype Device tables\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "Each device table corresponds to a set of deltas for a particular point over a range of ppem\nvalues.\n\nfirst\nThe first ppem value in the range\n\nlast\nThe last ppem value in the range\n\nval This is an array of deltas corresponding to each ppem in the range between first and last\ninclusive.\n\nfmt This is the fmt used (log2 of number bits per value) when the device table was read. It is\nrecalculated on output.\n",
            "subsections": []
        },
        "METHODS": {
            "content": "new\nCreates a new device table\n\nread\nReads a device table from the given IO object at the current location\n\nout($fh, $style)\nOutputs a device table to the given IO object at the current location, or just returns the data\nto be output if $style != 0\n\n$d->signature()\nReturns a content based identifying string for this delta for compression purposes\n\n$d->outxml($context)\nOutputs a delta in XML\n",
            "subsections": []
        },
        "AUTHOR": {
            "content": "Martin Hosken <http://scripts.sil.org/FontUtils>.\n",
            "subsections": []
        },
        "LICENSING": {
            "content": "Copyright (c) 1998-2016, SIL International (http://www.sil.org)\n\nThis module is released under the terms of the Artistic License 2.0. For details, see the full\ntext of the license in the file LICENSE.\n",
            "subsections": []
        }
    },
    "summary": "Font::TTF::Delta - Opentype Device tables",
    "flags": [],
    "examples": [],
    "see_also": []
}