INNER CODE UNIT · Dart

getX

OpenFlutter/k_chart · lib/depth_chart.dart:377

  int _indexOfTranslateX(double translateX, int start, int end, Function getX) {
    if (end == start || end == -1) {
      return start;
    }
    if (end - start == 1) {
      double startValue = getX(start);
      double endValue = getX(end);
      return (translateX - startValue).abs() < (translateX - endValue).abs()
          ? start
          : end;
    }
    int mid = start + (end - start) ~/ 2;
    double midValue = getX(mid);
    if (translateX < midValue) {
      return _indexOfTranslateX(translateX, start, mid, getX);
    } else if (translateX > midValue) {
      return _indexOfTranslateX(translateX, mid, end, getX);
    } else {

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