vmtx: Vertical Metrics table

The vmtx table is an OpenType table.

class fontTools.ttLib.tables._v_m_t_x.table__v_m_t_x(tag=None)[source]

Bases: table__h_m_t_x

Vertical Metrics table

The vmtx table contains per-glyph metrics for the glyphs in a glyf, CFF ``, or ``CFF2 table, as needed for vertical text layout.

See also https://learn.microsoft.com/en-us/typography/opentype/spec/vmtx

headerTag = 'vhea'
advanceName = 'height'
sideBearingName = 'tsb'
numberOfMetricsName = 'numberOfVMetrics'
mergeMap = {'metrics': <function sumDicts>, 'tableTag': <function equal>}
subset_glyphs(s)