/// <summary>
/// Perform an action for each frequency value on a logarithmically scaled graph or spectrum band.
/// </summary>
/// <param name="source">Sample array or spectrum</param>
/// <param name="startFreq">Frequency at the first element of the array</param>
/// <param name="endFreq">Frequency at the last element of the array</param>
/// <param name="action">Performed action</param>
public static void ForEachLog <T>(T[] source, double startFreq, double endFreq, FrequencyFunction <T> action)
{
double mul = Math.Pow(10, (Math.Log10(endFreq) - Math.Log10(startFreq)) / (source.Length - 1));
for (int i = 0; i < source.Length; ++i)
{
action(startFreq, ref source[i]);
startFreq *= mul;
}
}
/// <summary>
/// Perform an action for each frequency value on a linearly scaled graph or spectrum band.
/// </summary>
/// <param name="source">Sample array or spectrum</param>
/// <param name="startFreq">Frequency at the first element of the array</param>
/// <param name="endFreq">Frequency at the last element of the array</param>
/// <param name="action">Performed action</param>
public static void ForEachLin <T>(T[] source, double startFreq, double endFreq, FrequencyFunction <T> action)
{
double step = (endFreq - startFreq) / (source.Length - 1);
for (int entry = 0; entry < source.Length; ++entry)
{
action(startFreq + step * entry, ref source[entry]);
}
}
