Method getTicks

src/scale/Time.ts:173–250

(opt?: ScaleGetTicksOpt)

    }

    getTicks(opt?: ScaleGetTicksOpt): TimeScaleTick[] {
        opt = opt || {};

        const interval = this._interval;
        const extent = getScaleExtentForTickUnsafe(this);
        const scaleBreakHelper = getScaleBreakHelper();
        const brk = this.brk;
        const brkAvailable = scaleBreakHelper && brk;

        let ticks = [] as TimeScaleTick[];
        // If interval is 0, return [];
        if (!interval) {
            return ticks;
        }

        const useUTC = this._useUTC;

        if (brkAvailable && opt.breakTicks === 'only_break') {
            getScaleBreakHelper().addBreaksToTicks(ticks, brk.breaks, extent);
            return ticks;
        }

        ticks = createIntervalTicks(
            this._minLevelUnit,
            this._approxInterval,
            useUTC,
            extent,
            getScaleLinearSpanEffective(this),
            brk
        );

        let upperUnitIndex = primaryTimeUnits.length - 1;
        let maxLevel = 0;
        each(ticks, tick => {
            if (tick.time) {
                upperUnitIndex = Math.min(upperUnitIndex, indexOf(primaryTimeUnits, tick.time.upperTimeUnit));
                maxLevel = Math.max(maxLevel, tick.time.level);
            }
        });

        if (brkAvailable) {
            getScaleBreakHelper().pruneTicksByBreak(
                opt.pruneByBreak,
                ticks,
                brk.breaks,
                item => item.value,
                this._approxInterval,
                extent
            );
        }
        if (brkAvailable && opt.breakTicks !== 'none') {
            getScaleBreakHelper().addBreaksToTicks(ticks, brk.breaks, extent, trimmedBrk => {
                // @see `parseTimeAxisLabelFormatterDictionary`.
                const lowerBrkUnitIndex = Math.max(
                    indexOf(primaryTimeUnits, getUnitFromValue(trimmedBrk.vmin, useUTC)),
                    indexOf(primaryTimeUnits, getUnitFromValue(trimmedBrk.vmax, useUTC)),
                );
                let upperBrkUnitIndex = 0;