Function evaluateInteractionItems

src/core/core.interaction.js:74–87

* Helper function to select candidate elements for interaction * @param {Chart} chart - the chart * @param {string} axis - the axis mode. x|y|xy|r * @param {Point} position - the point to be nearest to, in relative coordinates * @param {function} handler - the callback to execute for each visibl

(chart, axis, position, handler, intersect)

 * @param {boolean} [intersect] - consider intersecting items
 */
function evaluateInteractionItems(chart, axis, position, handler, intersect) {
  const metasets = chart.getSortedVisibleDatasetMetas();
  const value = position[axis];
  for (let i = 0, ilen = metasets.length; i < ilen; ++i) {
    const {index, data} = metasets[i];
    const {lo, hi} = binarySearch(metasets[i], axis, value, intersect);
    for (let j = lo; j <= hi; ++j) {
      const element = data[j];
      if (!element.skip) {
        handler(element, index, j);
      }
    }
  }
}

/**
 * Get a distance metric function for two points based on the