36 lines
891 B
C++
36 lines
891 B
C++
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#include "gtl_math_rms.h"
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#include "gtl_math.h"
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namespace gtl
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{
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namespace math
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{
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rms::rms(gtl::analog_data *data)
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: analog_value(data)
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, _squared_sum_value(0.)
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{
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_name = "rms";
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}
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void rms::before_copying_data(std::vector<qreal>::iterator begin, std::vector<qreal>::iterator end)
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{
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_squared_sum_value -= mathFunctions::squared_sum(begin, end);
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}
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void rms::after_copying_data(std::vector<qreal>::iterator begin, std::vector<qreal>::iterator end)
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{
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_squared_sum_value += mathFunctions::squared_sum(begin, end);
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}
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void rms::data_changed()
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{
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analog_value::data_changed();
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if(_data.size() != 0)
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_value = qSqrt(_squared_sum_value/_data.size());
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emit value_changed();
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}
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}
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}
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