Added comment.

racevisionGame/src/main/java/visualiser/model/ResizableRaceCanvas.java

@@ -530,7 +530,7 @@ public class ResizableRaceCanvas extends ResizableCanvas {
             double[] yPoints = new double[boat.getTrack().size()];
             int index = 0;
 
-            //Draw each TrackPoint.
+            //Copy trackpoint locations to x/y arrays.
             for (TrackPoint point : new ArrayList<>(boat.getTrack())) {
 
                 //Convert the GPSCoordinate to a screen coordinate.
@@ -539,13 +539,9 @@ public class ResizableRaceCanvas extends ResizableCanvas {
                 xPoints[index] = ((double)scaledCoordinate.getX());
                 yPoints[index] = ((double)scaledCoordinate.getY());
 
-                
-
                 index++;
             }
 
-
-
             gc.strokePolyline(xPoints, yPoints, xPoints.length);
         }