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FilterPlotScene

Namespace: DISPLIB  ·  Library: Display Library

#include <disp/filterplotscene.h>

class DISPLIB::FilterPlotScene

QGraphicsScene rendering the magnitude (and optional phase) response of a designed FIR / IIR filter.

Used by FilterDesignView to preview the currently designed filter; re-renders itself every time the host view edits a kernel parameter.

Inheritance​

Public Methods​

FilterPlotScene(view, parent)​

Constructs a FilterPlotScene dialog which is a child of parent.

Parameters:

  • parent : *QObject ** pointer to parent widget; If parent is 0, the new FilterPlotScene becomes a window. If parent is another widget, FilterPlotScene becomes a child window inside parent. FilterPlotScene is deleted when its parent is deleted.

updateFilter(operatorFilter, samplingFreq, cutOffLow, cutOffHigh)​

Updates the current filter.

Parameters:

  • operatorFilter : const FilterKernel & pointer to the current filter operator which is to be plotted.

  • samplingFreq : int holds the current sampling frequency.

  • cutOffLow : int cut off frequqency lowpass or lower cut off when filter is a bandpass.

  • cutOffHigh : int cut off frequqency highpass or higher cut off when filter is a bandpass.

Authors of this file​