src/statsweekdaycongestion.cpp

   1 #include "statsweekdaycongestion.h"
   2
   3 StatsWeekdayCongestion::StatsWeekdayCongestion(JourneyModel * journeys) :
   4     journeys(journeys)
   5 {
   6     title = "Congestion by day (cycles per hour)";
   7     units = "";
   8     labels = QStringList{"M", "T", "W", "Th", "F", "S", "Su"};
   9 }
  10
  11 void StatsWeekdayCongestion::update() {
  12     double passed[7];
  13     unsigned int count[7];
  14     int pos;
  15
  16     barvalues.clear();
  17
  18     for (pos = 0; pos < 7; pos++) {
  19         passed[pos] = 0u;
  20         count[pos] = 0u;
  21     }
  22
  23     foreach (Journey const &journey, journeys->getData()) {
  24         QDate date = journey.getStartDate();
  25         int dayofweek = date.dayOfWeek() - 1;
  26         double duration = journey.getDuration() / (60.0 * 60.0);
  27         if (dayofweek >= 0) {
  28             passed[dayofweek] += (journey.getOvertook() + journey.getOvertakenBy()) / duration;
  29             count[dayofweek]++;
  30         }
  31     }
  32
  33     maxval = 0.0;
  34     for (pos = 0; pos < 7; pos++) {
  35         float result = 0.0f;
  36         if (count[pos] > 0) {
  37             result = ((double)passed[pos] / (double)count[pos]);
  38         }
  39         if (result > maxval) {
  40             maxval = result;
  41         }
  42         barvalues << result;
  43     }
  44
  45     step = maxval > 5.0 ? qRound(maxval / 5.0) : (maxval / 5.0);
  46 }