tim/prune/gui/profile/ArbitraryData.java

   1 package tim.prune.gui.profile;
   2
   3 import tim.prune.data.Field;
   4 import tim.prune.data.Track;
   5 import tim.prune.data.UnitSet;
   6
   7 /**
   8  * Class to provide a source of values for the profile chart
   9  * using any arbitary (non-built-in) field, units unknown
  10  */
  11 public class ArbitraryData extends ProfileData
  12 {
  13         /** Field to use */
  14         private Field _field = null;
  15
  16         /**
  17          * Constructor
  18          * @param inTrack track object
  19          * @param inField field to use
  20          */
  21         public ArbitraryData(Track inTrack, Field inField)
  22         {
  23                 super(inTrack);
  24                 _field = inField;
  25         }
  26
  27         /**
  28          * Get the data and populate the instance arrays
  29          */
  30         public void init(UnitSet inUnitSet)
  31         {
  32                 setUnitSet(inUnitSet);
  33                 initArrays();
  34                 _hasData = false;
  35                 _minValue = _maxValue = 0.0;
  36                 if (_track != null)
  37                 {
  38                         for (int i=0; i<_track.getNumPoints(); i++)
  39                         {
  40                                 // Get the value of the given field
  41                                 boolean hasValue = false;
  42                                 String value = _track.getPoint(i).getFieldValue(_field);
  43                                 try
  44                                 {
  45                                         double dValue = Double.parseDouble(value);
  46                                         _pointValues[i] = dValue;
  47                                         if (dValue < _minValue || _minValue == 0.0) {_minValue = dValue;}
  48                                         if (dValue > _maxValue) {_maxValue = dValue;}
  49                                         hasValue = true;
  50                                         _hasData = true;
  51                                 }
  52                                 catch (Exception e) {} // ignore nulls and non-numbers
  53                                 _pointHasData[i] = hasValue;
  54                         }
  55                 }
  56         }
  57
  58         /**
  59          * @return name of field
  60          */
  61         public String getLabel()
  62         {
  63                 return _field.getName();
  64         }
  65
  66         /**
  67          * @return the field object
  68          */
  69         public Field getField() {
  70                 return _field;
  71         }
  72
  73         /**
  74          * @return key for message when no values present
  75          */
  76         public String getNoDataKey() {
  77                 return "display.novalues";
  78         }
  79 }