Detailed Description

The LogOperator calculates the logarithm of the input value to base 10.

The input value must be greater than 0, otherwise the output will be set to NaN (Not-A-Number) and operator processing status will be set to STATUS_ERROR.

Arguments

When operator is used inside a signal its default input is automatically tied to signal's InternalValue or previous operator's output. Its default output is automatically tied to next operator's input or to signal's Value. See also CDP Operator Usage In CDP Signals.

Example

Below is an example plot with linearly increasing signal (cyan) and the same signal with LogOperator() applied (orange):

Actual Processing Code of the LogOperator

unsigned int LogOperator<double>::Process()
{
  double out = log10((double)m_input);
  m_output = out;

  return std::isnan(out)? STATUS_ERROR : STATUS_OK;
}