X-Git-Url: https://gitweb.fperrin.net/?a=blobdiff_plain;f=tim%2Fprune%2Fgui%2Fcolour%2FProfileDataColourer.java;fp=tim%2Fprune%2Fgui%2Fcolour%2FProfileDataColourer.java;h=357f7f98e996c4c028338b4f74fb4dd099a48a1f;hb=a6197ddcaac11c0b943183da7d46169742d024af;hp=0000000000000000000000000000000000000000;hpb=88f2c3647ed9e055090484f01a959d4581f85e7d;p=GpsPrune.git

diff --git a/tim/prune/gui/colour/ProfileDataColourer.java b/tim/prune/gui/colour/ProfileDataColourer.java
new file mode 100644
index 0000000..357f7f9
--- /dev/null
+++ b/tim/prune/gui/colour/ProfileDataColourer.java
@@ -0,0 +1,57 @@
+package tim.prune.gui.colour;
+
+import java.awt.Color;
+
+import tim.prune.config.Config;
+import tim.prune.data.Track;
+import tim.prune.gui.profile.ProfileData;
+
+/**
+ * Colourer based on speed values
+ */
+public abstract class ProfileDataColourer extends ContinuousPointColourer
+{
+	/**
+	 * Constructor
+	 * @param inStartColour start colour
+	 * @param inEndColour end colour
+	 */
+	public ProfileDataColourer(Color inStartColour, Color inEndColour)
+	{
+		super(inStartColour, inEndColour);
+	}
+
+	/**
+	 * Calculate the colours according to the track and the profile data
+	 */
+	public void calculateColours(Track inTrack, ProfileData inData)
+	{
+		final int numPoints = inTrack == null ? 0 : inTrack.getNumPoints();
+
+		// Calculate values for each point
+		inData.init(Config.getUnitSet());
+		// Figure out speed range
+		double minValue = inData.getMinValue();
+		double maxValue = inData.getMaxValue();
+		if (!inData.hasData() || (maxValue - minValue) < 0.1)
+		{
+			// not enough value range, set all to null
+			init(0);
+		}
+		else
+		{
+			// initialise the array to the right size
+			init(numPoints);
+			// loop over track points to calculate colours
+			for (int i=0; i<numPoints; i++)
+			{
+				if (inData.hasData(i))
+				{
+					double fraction = (inData.getData(i) - minValue) / (maxValue - minValue);
+					setColour(i, mixColour((float) fraction));
+				}
+				else setColour(i, null);
+			}
+		}
+	}
+}