search

notofonts / egyptian-hieroglyphs

Noto Egyptian Hieroglyphs
SIL Open Font License 1.1
7 stars 1 forks source link

Font sometimes displays shifted ~200 units upwards #7

Open dbczynski opened 1 year ago

dbczynski commented 1 year ago

Font

NotoSansEgyptianHieroglyphs-Regular.ttf; NotoSansEgyptianHieroglyphs-Regular.otf

Where the font came from, and when

Site: https://github.com/notofonts/egyptian-hieroglyphs/releases/tag/NotoSansEgyptianHieroglyphs-v2.001 Date: 2023-07-13

Font Version

v2.001, v2.000. All TTF and OTF files. Either local file, locally installed or linked from remote server.

OS name and version

Windows 10 x64 22H2 Windows 11 macOS Big Sur 11.7.6 Android 11

Application name and version

FontForge version: 20230101 (Windows 10) Firefox 115.0.2 x64 (Windows 10, Windows 11 and MacOS) Firefox 79.0esr x64 (Windows 10) Firefox 114.2.0 (Android)

Issue

In Firefox with writing-mode: vertical;, all Noto hieroglyphs appear shifted shifted up significantly, so that they appear partially outside their boxes, or have their heads cut off. The issue doesn't exist when using OTF font. In FontForge hieroglyphs also appear shifted up by the same amount (~200 units) and have their heads cut off. The issue exists even when using OTF font.

Firefox:

  1. Steps to reproduce: open attached file hg-name-min.html from hg-name-min.zip or create html div with writing-mode: vertical-lr with hieroglyph inside (eg. š“€€, U+13000) and the font set. A border will be useful in observing the issue.
  2. Observed results: clipping man ff Hieroglyph appears partially outside the block, shifted up. clipping man ff highlighted When highlighted, hieroglyph appears partially outside the highlight
  3. Expected results: properly rendering man chrome Hieroglyph not shifted up, within the block.
  4. Additional information: Only font called NewGardinerSMP has the same problem. Aegyptus, Aaron UMdC Alpha and SegoeUI Historic display properly. Only Firefox-based browsers have the problem. Chromium-based ones display properly.

FontForge:

  1. Steps to reproduce: Run FontForge. Open one of the fonts. Click View>GoTo>U+13000
  2. Observed results: clipping fontforge Hieroglyphs shifted up, partially cut off at the top.
  3. Expected results: Hieroglyph not shifted up, within the block.

Character data

Example character: š“€€, U+13000. Affected characters: U+13000 up to U+1342E

simoncozens commented 1 year ago

Thank you for this - obviously something is weird about the vertical metrics, even though they conform to our standards. I'll try and investigate.