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Save spectrum as CSV file with frequency and header
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parent
b935b32274
commit
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@ -493,13 +493,13 @@ void GLSpectrumGUI::on_markers_clicked(bool checked)
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applySettings();
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}
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// Save spectrum data to a text file
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// Save spectrum data to a CSV file
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void GLSpectrumGUI::on_save_clicked(bool checked)
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{
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(void) checked;
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// Get filename to write
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QFileDialog fileDialog(nullptr, "Select file to save data to", "", "*.*");
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QFileDialog fileDialog(nullptr, "Select file to save data to", "", "*.csv");
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fileDialog.setAcceptMode(QFileDialog::AcceptSave);
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if (fileDialog.exec())
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{
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@ -515,8 +515,13 @@ void GLSpectrumGUI::on_save_clicked(bool checked)
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if (file.open(QIODevice::WriteOnly))
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{
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QTextStream out(&file);
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for (int i = 0; i < m_settings.m_fftSize; i++) {
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out << spectrum[i] << "\n";
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float frequency = m_glSpectrum->getCenterFrequency() - (m_glSpectrum->getSampleRate() / 2.0f);
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float rbw = m_glSpectrum->getSampleRate() / (float)m_settings.m_fftSize;
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out << "\"Frequency\",\"Power\"\n";
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for (int i = 0; i < m_settings.m_fftSize; i++)
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{
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out << frequency << "," << spectrum[i] << "\n";
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frequency += rbw;
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}
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file.close();
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}
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