//конструктор с параметрами
public Visualization(Canvas canvas, SpectrParams sp)
{
this.canvas = canvas;
_SpectrParams = sp;
}
public Canvas canvas; //холст
//конструктор с параметрами по умолчанию
public Visualization(Canvas canvas)
{
this.canvas = canvas;
_SpectrParams = new SpectrParams();
}