snap static method

double snap(double value, double start, double end, double step,)

Snaps value to the nearest discrete position for the given range.

Implementation

static double snap(double value, double start, double end, double step) {
  final positions = discreteValues(start: start, end: end, step: step);
  if (positions.isEmpty) return value.clamp(start, end);
  double nearest = positions.first;
  double bestDist = (value - nearest).abs();
  for (final candidate in positions) {
    final dist = (value - candidate).abs();
    if (dist < bestDist) {
      bestDist = dist;
      nearest = candidate;
    }
  }
  return nearest;
}