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// @ts-check
/**
* Chart rendering constants — values that never change at runtime.
*
* Extracted from w.globals so modules can import only what they need
* instead of receiving the entire state object.
*/
/**
* Golden ratio used to scale multi-line x-axis label height.
* @type {number}
*/
export const LINE_HEIGHT_RATIO = 1.618
/**
* Allowed "magMsd" multipliers for niceScale tick generation.
*
* Two rows:
* [0] — used when the data series contains only integers
* [1] — used when the data series contains at least one float
*
* Each row has 11 values (indices 0–10). Each entry ideally satisfies
* `10 % entry === 0` to avoid ugly tick labels, and `entry >= index`
* to prevent data-point clipping.
*
* @type {number[][]}
*/
export const NICE_SCALE_ALLOWED_MAG_MSD = [
[1, 1, 2, 5, 5, 5, 10, 10, 10, 10, 10],
[1, 1, 2, 5, 5, 5, 10, 10, 10, 10, 10],
]
/**
* Default tick counts indexed by `Math.round(maxTicks / 2)`.
* Values chosen for having many divisors to produce clean grid lines.
* See Scales.niceScale() for usage.
*
* @type {number[]}
*/
export const NICE_SCALE_DEFAULT_TICKS = [
1, 2, 4, 4, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 12, 12, 12, 12, 12,
12, 12, 12, 12, 24,
]