iso15008__interline_spacing

Check if spacing between lines is adequate for display use

iso15008/interline_spacing

• Applies to: TTF
• Fontspector can hotfix?: no
• Fontspector can fix sources?: no

Rationale

According to ISO 15008, fonts used for in-car displays should not be too narrow or too wide.

To ensure legibility of this font on in-car information systems, it is recommended that the vertical metrics be set to a minimum at least one stem width between the bottom of the descender and the top of the ascender.

(Note that passing this check does not guarantee compliance with ISO-15008.)

Proposal

• https://github.com/fonttools/fontbakery/issues/1832 and https://github.com/fonttools/fontbakery/issues/3254

Profiles

• iso15008 (in section 'Iso15008 Fonts Checks')