Trackpoint line color fades out.

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

@@ -428,7 +428,7 @@ public class ResizableRaceCanvas extends ResizableCanvas {
         double endPointDiameter = 12;
 
         //Line.
-        drawLine(wakeFrom, wakeTo, boat.getColor(), lineWidth);
+        drawLine(wakeFrom, wakeTo, Color.DARKBLUE, lineWidth);
 
         //Draw end-point.
         drawCircle(wakeTo, endPointDiameter, Color.BLACK);
@@ -712,35 +712,44 @@ public class ResizableRaceCanvas extends ResizableCanvas {
         //Check that track points are enabled.
         if (this.annoPath) {
 
-            gc.save();
-
-            gc.setLineWidth(3);
-
-            //Apply the boat color.
-            gc.setFill(boat.getColor());
-            gc.setStroke(boat.getColor());
-
             List<TrackPoint> trackPoints = new ArrayList<>(boat.getTrack());
 
-            double[] xPoints = new double[trackPoints.size()];
+            if (trackPoints.size() > 2 ) {
-            double[] yPoints = new double[trackPoints.size()];
-            int index = 0;
 
-            //Copy trackpoint locations to x/y arrays.
+                gc.save();
-            for (TrackPoint point : trackPoints) {
 
-                //Convert the GPSCoordinate to a screen coordinate.
+                gc.setLineWidth(3);
-                GraphCoordinate scaledCoordinate = this.map.convertGPS(point.getCoordinate());
 
-                xPoints[index] = ((double)scaledCoordinate.getX());
-                yPoints[index] = ((double)scaledCoordinate.getY());
 
-                index++;
+                //Draw a line between each adjacent pair of track points.
+                for (int i = 0; i < trackPoints.size() - 1; i++) {
+
+                    //Convert the GPSCoordinate to a screen coordinate.
+                    GraphCoordinate scaledCoordinate1 = this.map.convertGPS(trackPoints.get(i).getCoordinate());
+                    GraphCoordinate scaledCoordinate2 = this.map.convertGPS(trackPoints.get(i + 1).getCoordinate());
+
+                    double alpha = trackPoints.get(i).getAlpha();
+                    Paint fadedPaint = new Color(
+                            boat.getColor().getRed(),
+                            boat.getColor().getGreen(),
+                            boat.getColor().getBlue(),
+                            alpha   );
+
+                    //Apply the faded boat color.
+                    gc.setFill(fadedPaint);
+                    gc.setStroke(fadedPaint);
+
+                    gc.strokeLine(
+                            scaledCoordinate1.getX(),
+                            scaledCoordinate1.getY(),
+                            scaledCoordinate2.getX(),
+                            scaledCoordinate2.getY()    );
+                }
+
+
+                gc.restore();
+
             }
-
-            gc.strokePolyline(xPoints, yPoints, xPoints.length);
-
-            gc.restore();
         }
 
     }

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

@@ -41,7 +41,7 @@ public class VisualiserBoat extends Boat {
     /**
      * The number of track points that should be created before fully diminishing the alpha of a given track point.
      */
-    private static final int trackPointLimit = 10;
+    private static final int trackPointLimit = 50;
 
 
     /**