X-Git-Url: http://gitweb.fperrin.net/?p=GpsPrune.git;a=blobdiff_plain;f=src%2Ftim%2Fprune%2Fgui%2Fprofile%2FSpeedData.java;fp=src%2Ftim%2Fprune%2Fgui%2Fprofile%2FSpeedData.java;h=4b0f350c58309a6a4b480de766942cc046b8ac78;hp=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465

diff --git a/src/tim/prune/gui/profile/SpeedData.java b/src/tim/prune/gui/profile/SpeedData.java
new file mode 100644
index 0000000..4b0f350
--- /dev/null
+++ b/src/tim/prune/gui/profile/SpeedData.java
@@ -0,0 +1,66 @@
+package tim.prune.gui.profile;
+
+import tim.prune.I18nManager;
+import tim.prune.data.SpeedCalculator;
+import tim.prune.data.SpeedValue;
+import tim.prune.data.Track;
+import tim.prune.data.UnitSet;
+
+/**
+ * Class to provide a source of speed data for the profile chart
+ */
+public class SpeedData extends ProfileData
+{
+	/**
+	 * Constructor
+	 * @param inTrack track object
+	 */
+	public SpeedData(Track inTrack) {
+		super(inTrack);
+	}
+
+	/**
+	 * Get the data and populate the instance arrays
+	 */
+	public void init(UnitSet inUnitSet)
+	{
+		setUnitSet(inUnitSet);
+		initArrays();
+		_hasData = false;
+		_minValue = _maxValue = 0.0;
+		SpeedValue speed = new SpeedValue();
+		if (_track != null)
+		{
+			for (int i=0; i<_track.getNumPoints(); i++)
+			{
+				// Get the speed either from the speed value or from the distances and timestamps
+				SpeedCalculator.calculateSpeed(_track, i, speed);
+				if (speed.isValid())
+				{
+					double speedValue = speed.getValue();
+					_pointValues[i] = speedValue;
+					if (speedValue < _minValue || !_hasData) {_minValue = speedValue;}
+					if (speedValue > _maxValue || !_hasData) {_maxValue = speedValue;}
+					_hasData = true;
+				}
+				_pointHasData[i] = speed.isValid();
+			}
+		}
+	}
+
+	/**
+	 * @return text description including units
+	 */
+	public String getLabel()
+	{
+		return I18nManager.getText("fieldname.speed") + " ("
+			+ I18nManager.getText(_unitSet.getSpeedUnit().getShortnameKey()) + ")";
+	}
+
+	/**
+	 * @return key for message when no speeds present
+	 */
+	public String getNoDataKey() {
+		return "display.notimestamps";
+	}
+}