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OpenType / opentype-variations

OpenType Font Variations proposals
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Make MATH variable #4

Open be5invis opened 5 years ago

be5invis commented 5 years ago

There are cases that we need to bolden the entire equation, like, equations in titles:

DISCLAIMER: This is NOT a proposal from Microsoft, just from me.

stone-zeng commented 5 years ago

See https://github.com/firamath/firamath/issues/20.

be5invis commented 5 years ago

Some concept:

MATH Header, version 1.1

Type Name Description
uint16 majorVersion Major version of the MATH table, = 1.
uint16 minorVersion Minor version of the MATH table, = 1.
Offset16 mathConstantsOffset Offset to MathConstants table - from the beginning of MATH table.
Offset16 mathGlyphInfoOffset Offset to MathGlyphInfo table - from the beginning of MATH table.
Offset16 mathVariantsOffset Offset to MathVariants table - from the beginning of MATH table.
Offset32 itemVariationStore Offset to Item Variation Store

MathValueRecord

Type Name Description
int16 value The X or Y value in design units
Offset16 deviceTableOffset Offset to the Device or Variation Index Table – from the beginning of parent table. May be NULL.

DISCLAIMER: This is NOT a proposal from Microsoft, just from me.