Method updateElements

src/controllers/controller.line.js:76–120

(points, start, count, mode)

  }

  updateElements(points, start, count, mode) {
    const reset = mode === class="st">'reset';
    const {iScale, vScale, _stacked, _dataset} = this._cachedMeta;
    const {sharedOptions, includeOptions} = this._getSharedOptions(start, mode);
    const iAxis = iScale.axis;
    const vAxis = vScale.axis;
    const {spanGaps, segment} = this.options;
    const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;
    const directUpdate = this.chart._animationsDisabled || reset || mode === class="st">'none';
    const end = start + count;
    const pointsCount = points.length;
    let prevParsed = start > 0 && this.getParsed(start - 1);

    for (let i = 0; i < pointsCount; ++i) {
      const point = points[i];
      const properties = directUpdate ? point : {};

      if (i < start || i >= end) {
        properties.skip = true;
        continue;
      }

      const parsed = this.getParsed(i);
      const nullData = isNullOrUndef(parsed[vAxis]);
      const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);
      const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);

      properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;
      properties.stop = i > 0 && (Math.abs(parsed[iAxis] - prevParsed[iAxis])) > maxGapLength;
      if (segment) {
        properties.parsed = parsed;
        properties.raw = _dataset.data[i];
      }

      if (includeOptions) {
        properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? class="st">'active' : mode);
      }

      if (!directUpdate) {
        this.updateElement(point, i, properties, mode);
      }

      prevParsed = parsed;
    }
  }

  /**
	 * @protected