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This commit is contained in:
Sean C. Rhea
154
src/CsvRideFile.cpp
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154
src/CsvRideFile.cpp
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/*
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* Copyright (c) 2007 Sean C. Rhea (srhea@srhea.net),
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* Justin F. Knotzke (jknotzke@shampoo.ca)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "CsvRideFile.h"
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#include <QRegExp>
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#include <QTextStream>
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#include <algorithm> // for std::sort
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#include <assert.h>
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#include "math.h"
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#define MILES_TO_KM 1.609344
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static int csvFileReaderRegistered =
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RideFileFactory::instance().registerReader("csv", new CsvFileReader());
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RideFile *CsvFileReader::openRideFile(QFile &file, QStringList &errors) const
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{
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QRegExp metricUnits("(km|kph|km/h)", Qt::CaseInsensitive);
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QRegExp englishUnits("(miles|mph|mp/h)", Qt::CaseInsensitive);
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bool metric;
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// TODO: a more robust regex for ergomo files
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// i don't have an example with english headers
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// the ergomo CSV has two rows of headers. units are on the second row.
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/*
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ZEIT,STRECKE,POWER,RPM,SPEED,PULS,HÖHE,TEMP,INTERVAL,PAUSE
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L_SEC,KM,WATT,RPM,KM/H,BPM,METER,°C,NUM,SEC
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*/
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QRegExp ergomoCSV("(ZEIT|STRECKE)", Qt::CaseInsensitive);
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bool ergomo;
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int unitsHeader = 1;
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if (!file.open(QFile::ReadOnly)) {
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errors << ("Could not open ride file: \""
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+ file.fileName() + "\"");
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return NULL;
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}
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int lineno = 1;
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QTextStream is(&file);
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RideFile *rideFile = new RideFile();
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while (!is.atEnd()) {
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QString line = is.readLine();
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if (lineno == 1) {
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if (ergomoCSV.indexIn(line) != -1) {
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ergomo = true;
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unitsHeader = 2;
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++lineno;
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continue;
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}
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else {
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ergomo = false;
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}
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}
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if (lineno == unitsHeader) {
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if (metricUnits.indexIn(line) != -1)
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metric = true;
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else if (englishUnits.indexIn(line) != -1)
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metric = false;
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else {
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errors << ("Can't find units in first line: \"" + line + "\"");
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delete rideFile;
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file.close();
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return NULL;
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}
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}
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else {
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double minutes,nm,kph,watts,km,cad,hr;
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int interval;
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if (!ergomo) {
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minutes = line.section(',', 0, 0).toDouble();
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nm = line.section(',', 1, 1).toDouble();
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kph = line.section(',', 2, 2).toDouble();
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watts = line.section(',', 3, 3).toDouble();
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km = line.section(',', 4, 4).toDouble();
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cad = line.section(',', 5, 5).toDouble();
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hr = line.section(',', 6, 6).toDouble();
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interval = line.section(',', 7, 7).toInt();
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if (!metric) {
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km *= MILES_TO_KM;
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kph *= MILES_TO_KM;
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}
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}
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else {
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// for ergomo formatted CSV files
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minutes = line.section(',', 0, 0).toDouble();
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km = line.section(',', 1, 1).toDouble();
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watts = line.section(',', 2, 2).toDouble();
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cad = line.section(',', 3, 3).toDouble();
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kph = line.section(',', 4, 4).toDouble();
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hr = line.section(',', 5, 5).toDouble();
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interval = line.section(',', 8, 8).toInt();
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nm = NULL; // torque is not provided in the Ergomo file
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// the ergomo records the time in whole seconds
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// RECORDING INT. 1, 2, 5, 10, 15 or 30 per sec
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minutes = minutes/60.0;
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if (!metric) {
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km *= MILES_TO_KM;
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kph *= MILES_TO_KM;
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}
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}
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rideFile->appendPoint(minutes * 60.0, cad, hr, km,
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kph, nm, watts, interval);
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}
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++lineno;
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}
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// To estimate the recording interval, take the median of the
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// first 1000 samples and round to nearest millisecond.
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int n = rideFile->dataPoints().size();
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n = qMin(n, 1000);
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if (n >= 2) {
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double *secs = new double[n-1];
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for (int i = 0; i < n-1; ++i) {
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double now = rideFile->dataPoints()[i]->secs;
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double then = rideFile->dataPoints()[i+1]->secs;
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secs[i] = then - now;
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}
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std::sort(secs, secs + n - 1);
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int mid = n / 2 - 1;
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double recint = round(secs[mid] * 1000.0) / 1000.0;
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rideFile->setRecIntSecs(recint);
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}
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QRegExp rideTime("^.*/(\\d\\d\\d\\d)_(\\d\\d)_(\\d\\d)_"
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"(\\d\\d)_(\\d\\d)_(\\d\\d)\\.csv$");
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if (rideTime.indexIn(file.fileName()) >= 0) {
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QDateTime datetime(QDate(rideTime.cap(1).toInt(),
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rideTime.cap(2).toInt(),
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rideTime.cap(3).toInt()),
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QTime(rideTime.cap(4).toInt(),
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rideTime.cap(5).toInt(),
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rideTime.cap(6).toInt()));
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rideFile->setStartTime(datetime);
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}
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file.close();
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return rideFile;
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}
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