Function getIntersectItems

src/core/core.interaction.js:114–132

* Helper function to get the items that intersect the event position * @param {Chart} chart - the chart * @param {Point} position - the point to be nearest to, in relative coordinates * @param {string} axis - the axis mode. x|y|xy|r * @param {boolean} [useFinalPosition] - use the element's anima

(chart, position, axis, useFinalPosition, includeInvisible)

 * @return {InteractionItem[]} the nearest items
 */
function getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) {
  const items = [];

  if (!includeInvisible && !chart.isPointInArea(position)) {
    return items;
  }

  const evaluationFunc = function(element, datasetIndex, index) {
    if (!includeInvisible && !_isPointInArea(element, chart.chartArea, 0)) {
      return;
    }
    if (element.inRange(position.x, position.y, useFinalPosition)) {
      items.push({element, datasetIndex, index});
    }
  };

  evaluateInteractionItems(chart, axis, position, evaluationFunc, true);
  return items;
}

/**
 * Helper function to get the items nearest to the event position for a radial chart