Method _tickSize

src/core/core.scale.js:977–994

* @return {number} * @private

()

	 * @private
	 */
  _tickSize() {
    const optionTicks = this.options.ticks;

    // Calculate space needed by label in axis direction.
    const rot = toRadians(this.labelRotation);
    const cos = Math.abs(Math.cos(rot));
    const sin = Math.abs(Math.sin(rot));

    const labelSizes = this._getLabelSizes();
    const padding = optionTicks.autoSkipPadding || 0;
    const w = labelSizes ? labelSizes.widest.width + padding : 0;
    const h = labelSizes ? labelSizes.highest.height + padding : 0;

    // Calculate space needed for 1 tick in axis direction.
    return this.isHorizontal()
      ? h * cos > w * sin ? w / cos : h / sin
      : h * sin < w * cos ? h / cos : w / sin;
  }

  /**
	 * @return {boolean}