tim/prune/gui/profile/SpeedData.java

   1 package tim.prune.gui.profile;
   2
   3 import tim.prune.I18nManager;
   4 import tim.prune.data.SpeedCalculator;
   5 import tim.prune.data.SpeedValue;
   6 import tim.prune.data.Track;
   7 import tim.prune.data.UnitSet;
   8
   9 /**
  10  * Class to provide a source of speed data for the profile chart
  11  */
  12 public class SpeedData extends ProfileData
  13 {
  14         /**
  15          * Constructor
  16          * @param inTrack track object
  17          */
  18         public SpeedData(Track inTrack) {
  19                 super(inTrack);
  20         }
  21
  22         /**
  23          * Get the data and populate the instance arrays
  24          */
  25         public void init(UnitSet inUnitSet)
  26         {
  27                 setUnitSet(inUnitSet);
  28                 initArrays();
  29                 _hasData = false;
  30                 _minValue = _maxValue = 0.0;
  31                 SpeedValue speed = new SpeedValue();
  32                 if (_track != null)
  33                 {
  34                         for (int i=0; i<_track.getNumPoints(); i++)
  35                         {
  36                                 // Get the speed either from the speed value or from the distances and timestamps
  37                                 SpeedCalculator.calculateSpeed(_track, i, speed);
  38                                 if (speed.isValid())
  39                                 {
  40                                         double speedValue = speed.getValue();
  41                                         _pointValues[i] = speedValue;
  42                                         if (speedValue < _minValue || _minValue == 0.0) {_minValue = speedValue;}
  43                                         if (speedValue > _maxValue) {_maxValue = speedValue;}
  44                                         _hasData = true;
  45                                 }
  46                                 _pointHasData[i] = speed.isValid();
  47                         }
  48                 }
  49         }
  50
  51         /**
  52          * @return text description including units
  53          */
  54         public String getLabel()
  55         {
  56                 return I18nManager.getText("fieldname.speed") + " ("
  57                         + I18nManager.getText(_unitSet.getSpeedUnit().getShortnameKey()) + ")";
  58         }
  59
  60         /**
  61          * @return key for message when no speeds present
  62          */
  63         public String getNoDataKey() {
  64                 return "display.notimestamps";
  65         }
  66 }