FontMetrics

A font's vertical and width metrics, in font units.

Import#

import type { FontMetrics } from "@shadow-js/dusk";

Signature#

interface FontMetrics {
  readonly unitsPerEm: number;
  /** The average width of a lowercase letter (OS/2 `xAvgCharWidth` is close; a measured value is better). */
  readonly xWidthAvg: number;
  /** The typographic ascender (a positive number). */
  readonly ascender: number;
  /** The typographic descender (negative, or positive; its magnitude is used). */
  readonly descender: number;
  readonly lineGap: number;
}

Members#

Name	Type	Description
`unitsPerEm`	`readonly unitsPerEm: number`
`xWidthAvg`	`readonly xWidthAvg: number`	The average width of a lowercase letter (OS/2 `xAvgCharWidth` is close; a measured value is better).
`ascender`	`readonly ascender: number`	The typographic ascender (a positive number).
`descender`	`readonly descender: number`	The typographic descender (negative, or positive; its magnitude is used).
`lineGap`	`readonly lineGap: number`