FFTFilter.h
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00029 #ifndef FFTFILTER_H
00030 #define FFTFILTER_H
00031
00032 #include "Filter.h"
00033
00034 class FFTFilter : public Filter
00035 {
00036 Q_OBJECT
00037
00038 public:
00039 FFTFilter(ApplicationWindow *parent, Graph *g, const QString& curveTitle, int m = 1);
00040 FFTFilter(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end, int m = 1);
00041 FFTFilter(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int start = 0, int end = -1, int m = 1);
00042
00043 enum FilterType{LowPass = 1, HighPass = 2, BandPass = 3, BandBlock = 4};
00044
00045 void setFilterType(int type);
00046
00048 void setCutoff(double f);
00049
00051 void setBand(double lowFreq, double highFreq);
00052
00054 void enableOffset(bool offset = true){d_offset = offset;};
00055
00056 private:
00057 void init(int m);
00058 void calculateOutputData(double *x, double *y);
00059
00061 FilterType d_filter_type;
00062
00064 double d_low_freq;
00065
00067 double d_high_freq;
00068
00070 bool d_offset;
00071 };
00072
00073 #endif