public ChamfersTechOperation(TactileTechProcess techProcess, string caption, int?processingAngle, double?bandStart) : base(techProcess, caption)
{
BandStart = bandStart ?? techProcess.BandStart1.Value;
ProcessingAngle = processingAngle ?? techProcess.ProcessingAngle1.Value;
CuttingFeed = techProcess.TactileTechProcessParams.CuttingFeed;
}