[READ-ONLY] Mirror of https://github.com/sxzz/hanji. 一字之間，照見五地字形 hanji.sxzz.moe
chinese-characters cjk han hanja hanji hanzi kanji
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768import { glyphSignature, projectSignature, signatureIndexOf } from './row.ts'import { REGIONS, type CharRow, type Column } from './types.ts'
/** Visible glyph groups listed in the regions selected under “Used in”. */export function overprintCommonGroups( row: CharRow, columns: readonly Column[], selected: readonly string[],): Set<number> { const signature = projectSignature( glyphSignature(row), columns.map(signatureIndexOf), ) return new Set( columns.flatMap((column, position) => column !== 'old' && selected.includes(column) && row.tier[REGIONS.indexOf(column)] ? [Number(signature[position])] : [], ), )}
/** * sRGB equivalents of the light-paper overprint inks in vars.css. Resvg does * not understand OKLCH, so non-CSS renderers use these measured fallbacks. */export const OVERPRINT_PLATE_SRGB = [ '#855451', '#446787', '#696538', '#71587d', '#366f61',] as const
/** Keep every stack on the same fixed five-ink sequence. */export function overprintPlateIndex(group: number): number { const count = OVERPRINT_PLATE_SRGB.length return ((group % count) + count) % count}
/** CSS color for a plate; a rare sixth form deliberately reuses the first. */export function overprintColor(group: number): string { return `var(--c-o${overprintPlateIndex(group) + 1})`}
/** * Dense glyphs need more paper showing through than sparse ones. Their fill * recedes while the shared registration edge stays firm, so every plate keeps * the same visual weight without turning a complex stack into a dark block. */export function overprintOpacity( row: CharRow, columns: readonly Column[],): number { const strokes = columns.flatMap((column) => { if (column === 'old') return row.old ? [row.old.strokes] : [] const index = REGIONS.indexOf(column) return index === -1 ? [] : [row.strokes[index]!] }) const max = Math.max(0, ...strokes) if (max >= 20) return 0.24 if (max >= 15) return 0.28 if (max >= 10) return 0.32 return 0.42}