Time scale and zoom

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Component options for @mes/aps@1.23.0. Prefix scalar Settings names with schedule.; see how to fill in a record.

Horizontal scale

Precision is the duration represented by one time division: integer levels 0 (ten years) through 44 (one minute). When data is loaded, the chart fits the schedule into its visible width and replaces precision and barSettings.initialWidth with the fitted values. Fitting requires a nonempty time range and a positive chart width. If even the coarsest step cannot fit the range at minimum width, the chart keeps that step; the whole schedule will not necessarily be visible at once.

barSettings.initialWidth

Lower bound for the base division width during initial fitting. A larger value leaves room for fewer divisions and may select a coarser time step. After fitting, the property stores the calculated width for later scaling.

• Type: number, pixels.
• Default: 40.
• This is an initial value, not a fixed final width.

barSettings.maxInitialWidth

Limit for the base time-division width chosen during automatic fitting. The visible width is this base multiplied by 1.05 to the power of the precision level; it can exceed this value.

• Type: number, pixels.
• Default: 240.

appSettings.availableZoomLevels

The slider's precision list, which fitting replaces with levels from the fitted precision through 44. It prevents zooming out beyond the initial fit. The chart owns this value; do not configure it. With no data, an empty list hides the slider.

Level	Division	Level	Division	Level	Division
0	10 years	15	5 days	30	150 minutes
1	5 years	16	4 days	31	2 hours
2	3 years	17	3 days	32	90 minutes
3	2 years	18	2 days	33	1 hour
4	1 year	19	1 day	34	45 minutes
5	6 months	20	21 hours	35	30 minutes
6	5 months	21	18 hours	36	25 minutes
7	4 months	22	15 hours	37	20 minutes
8	3 months	23	12 hours	38	15 minutes
9	2 months	24	8 hours	39	10 minutes
10	1 month	25	6 hours	40	5 minutes
11	3 weeks	26	5 hours	41	4 minutes
12	2 weeks	27	4 hours	42	3 minutes
13	7 days	28	210 minutes	43	2 minutes
14	6 days	29	3 hours	44	1 minute

A year is 365 days and a month is 30 days. With ru-RU, labels use date and time for minute/hour steps, dates for day/week steps, month/year for months, and year for years. See locale and timezone.

Vertical scale

Equipment rows use a discrete height ladder. finite: false equipment can have several operation levels; its full row is correspondingly taller. The chart rebuilds its height ladder after data or area size changes. Its lowest step is the largest row height that fits all equipment, bounded by minSize and the upper step. With many rows, not all may fit even at the lowest step. The upper step is maxSize, limited by the area's height.

precisionYGantt.minSize

Lower bound for one equipment level while constructing the height ladder. If the area is smaller than this bound, calculated height can also be smaller.

• Type: number, pixels.
• Default: 20.
• Read once when the chart is created.

precisionYGantt.maxSize

Maximum height of one equipment level, also limited by chart area height.

• Type: number, pixels.
• Default: 500.
• Read once when the chart is created.

precisionYGantt.steps

Number of vertical zoom slider positions. Values below two cause a ladder construction error.

• Type: integer, at least 2.
• Default: 60.
• Read once when the chart is created.

precisionYConstraints.minSize, precisionYConstraints.maxSize, precisionYConstraints.steps

The equivalent options for constraint rows. Secondary and material constraints share one height ladder and slider position.

• Defaults: 70, 380, 8.
• Each panel constructs the ladder from its own list, stores it in precisionYConstraints.array, and uses zoomYConstraints. Empty lists retain the previous or initial array.

Values the chart owns

• precisionYGantt.array and precisionYConstraints.array: rebuilt from the bounds and step count.
• barSettings.ganttHeight and barSettings.constraintsHeight: replaced by ladder values when zoom is first applied.
• zoomYGantt and zoomYConstraints: reset when the equipment list changes. zoomY is unused.
• barSettings.baseWidth: recalculated after each scale change.

Example

With enough chart height, a 30-pixel lower row bound, 20 slider positions and automatic fitting with base width at most 160 pixels:

{
  "precisionYGantt": { "minSize": 30, "steps": 20 },
  "barSettings": { "maxInitialWidth": 160 }
}