googlefonts/sleipnir

Option to emit mildly optimized svg paths

Ouverte

#18 ouverte le 17 mai 2024

 (1 commentaire) (0 réaction) (1 personne assignée)Rust (2 forks)auto 404
enhancementgood first issue

Métriques du dépôt

Stars
 (2 étoiles)
Métriques de merge PR
 (Métriques PR en attente)

Description

To enable deletion of some java code and a somewhat slow step in icon svg processing provide an optional optimized svg path that does the following if/when it produces a shorter string:

  • Use relative vs absolute coords
  • Collapse repeated lines (e.g. h20 h30 -> h50)
  • Use lineto shorthands (e.g. horizontal or vertical line)
  • Remove nop instructions, e.g. l0,0 but more generally any command that doesn't move the pen
  • Decrease accuracy of floats
  • Convert degenerate curves to lines
  • Drop leading 0 when possible (e.g 0.5 => .5)
  • Drop separator between coords when second is negative, e.g. emit 160-160 not 160,-160
  • Use "smooth" cubic/quadratic curve commands when possible (reflection of end of previous gives first control)

That is, implement most optimizations from https://github.com/svg/svgo/blob/main/plugins/convertPathData.js but apply during generation of a String for a BezPath instead of as a standalone step. Consider not implementing arc conversion; arcs have a way of breaking things.

Impact: should cut minutes off the time to produce a complete set of icons.

See:

Guide contributeur