private void UpdateAcousticLevelData()
{
var noise = selectedDuctElement.Noise();
var attenuation = selectedDuctElement.Attenuation();
for (int i = 0; i < noise.Count(); i++)
{
NoiseLevelList[i] = new KeyValuePair <int, double>(i, Math.Round(noise[i], 1, MidpointRounding.AwayFromZero));
AttenuationLevelList[i] = new KeyValuePair <int, double>(i, Math.Round(attenuation[i], 1, MidpointRounding.AwayFromZero));
}
}
