Moved source into separate src directory due to popular request

[GpsPrune.git] / src / tim / prune / gui / profile / AltitudeData.java

diff --git a/src/tim/prune/gui/profile/AltitudeData.java b/src/tim/prune/gui/profile/AltitudeData.java
new file mode 100644 (file)
index 0000000..9600b16
--- /dev/null
+++ b/src/tim/prune/gui/profile/AltitudeData.java
@@ -0,0 +1,75 @@
+package tim.prune.gui.profile;
+
+import tim.prune.I18nManager;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Track;
+import tim.prune.data.UnitSet;
+
+/**
+ * Class to provide a source of altitude data for the profile chart
+ */
+public class AltitudeData extends ProfileData
+{
+       /**
+        * Constructor
+        * @param inTrack track object
+        */
+       public AltitudeData(Track inTrack) {
+               super(inTrack);
+       }
+
+       /**
+        * Get the data and populate the instance arrays
+        */
+       public void init(UnitSet inUnitSet)
+       {
+               setUnitSet(inUnitSet);
+               initArrays();
+               _hasData = false;
+               // multiplication factor for unit conversion
+               final double multFactor = _unitSet.getAltitudeUnit().getMultFactorFromStd();
+               if (_track != null)
+               {
+                       try
+                       {
+                               for (int i=0; i<_track.getNumPoints(); i++)
+                               {
+                                       DataPoint point = _track.getPoint(i);
+                                       if (point != null && point.hasAltitude())
+                                       {
+                                               // Point has an altitude - store value and maintain max and min values
+                                               double value = point.getAltitude().getMetricValue() * multFactor;
+                                               _pointValues[i] = value;
+                                               if (value < _minValue || !_hasData) {_minValue = value;}
+                                               if (value > _maxValue || !_hasData) {_maxValue = value;}
+
+                                               // if all values are zero then that's no data
+                                               _hasData = _hasData || (point.getAltitude().getValue() != 0);
+                                               _pointHasData[i] = true;
+                                       }
+                                       else _pointHasData[i] = false;
+                               }
+                       }
+                       catch (ArrayIndexOutOfBoundsException obe)
+                       {} // must be due to the track size changing during calculation
+                          // assume that a redraw will be triggered
+               }
+       }
+
+       /**
+        * @return text description including units
+        */
+       public String getLabel()
+       {
+               return I18nManager.getText("fieldname.altitude") + " ("
+                       + I18nManager.getText(_unitSet.getAltitudeUnit().getShortnameKey())
+                       + ")";
+       }
+
+       /**
+        * @return key for message when no altitudes present
+        */
+       public String getNoDataKey() {
+               return "display.noaltitudes";
+       }
+}