Changeset 4207 in josm for trunk/src/org/openstreetmap/josm/gui/layer/GpxLayer.java

Timestamp:

2011-07-07T10:51:48+02:00 (13 years ago)

Author:

bastiK

Message:

applied #6540 (anonymous contribution) - New gps-trace coloring method: direction

File:

• trunk/src/org/openstreetmap/josm/gui/layer/GpxLayer.java (modified) (10 diffs)

trunk/src/org/openstreetmap/josm/gui/layer/GpxLayer.java

@@ -78 +78 @@
 import org.openstreetmap.josm.tools.ImageProvider;
 import org.openstreetmap.josm.tools.UrlLabel;
+import org.openstreetmap.josm.tools.Utils;
 
 public class GpxLayer extends Layer {
@@ -304 +305 @@
     }
 
-    private static Color[] colors = new Color[256];
+    private final static Color[] colors = new Color[256];
     static {
         for (int i = 0; i < colors.length; i++) {
@@ -311 +312 @@
     }
 
+    private final static Color[] colors_cyclic = new Color[256];
+    static {
+        for (int i = 0; i < colors_cyclic.length; i++) {
+            //                    red   yellow  green   blue    red
+            int[] h = new int[] { 0,    59,     127,    244,    360};
+            int[] s = new int[] { 100,  84,     99,     100 };
+            int[] b = new int[] { 90,   93,     74,     83 };
+
+            float angle = 4 - i / 256f * 4;
+            int quadrant = (int) angle;
+            angle -= quadrant;
+            quadrant = Utils.mod(quadrant+1, 4);
+
+            float vh = h[quadrant] * w(angle) + h[quadrant+1] * (1 - w(angle));
+            float vs = s[quadrant] * w(angle) + s[Utils.mod(quadrant+1, 4)] * (1 - w(angle));
+            float vb = b[quadrant] * w(angle) + b[Utils.mod(quadrant+1, 4)] * (1 - w(angle));
+
+            colors_cyclic[i] = Color.getHSBColor(vh/360f, vs/100f, vb/100f);
+        }
+    }
+
+    /**
+     * transition function: 
+     *  w(0)=1, w(1)=0, 0<=w(x)<=1
+     * @param x number: 0<=x<=1
+     * @return the weighted value
+     */
+    private static float w(float x) {
+        if (x < 0.5) {
+            return 1 - 2*x*x;
+        } else {
+        return 2*(1-x)*(1-x);
+        }
+    }
+    
     // lookup array to draw arrows without doing any math
-    private static int ll0 = 9;
-    private static int sl4 = 5;
-    private static int sl9 = 3;
-    private static int[][] dir = { { +sl4, +ll0, +ll0, +sl4 }, { -sl9, +ll0, +sl9, +ll0 }, { -ll0, +sl4, -sl4, +ll0 },
+    private final static int ll0 = 9;
+    private final static int sl4 = 5;
+    private final static int sl9 = 3;
+    private final static int[][] dir = { { +sl4, +ll0, +ll0, +sl4 }, { -sl9, +ll0, +sl9, +ll0 }, { -ll0, +sl4, -sl4, +ll0 },
         { -ll0, -sl9, -ll0, +sl9 }, { -sl4, -ll0, -ll0, -sl4 }, { +sl9, -ll0, -sl9, -ll0 },
         { +ll0, -sl4, +sl4, -ll0 }, { +ll0, +sl9, +ll0, -sl9 }, { +sl4, +ll0, +ll0, +sl4 },
@@ -322 +358 @@
     // the different color modes
     enum colorModes {
-        none, velocity, dilution
+        none, velocity, dilution, direction
     }
 
@@ -430 +466 @@
                                 break;
 
+                            case direction:
+                                // unfortunately "heading" misses a cos-factor in the
+                                // longitudes to account for the convergence of meridians
+                                double dirColor = oldWp.getCoor().heading(trkPnt.getCoor()) / (2.0 * Math.PI) * 256;
+                                // Bad case first
+                                if (dirColor != dirColor || dirColor < 0.0 || dirColor >= 256.0) {
+                                    trkPnt.customColoring = colors_cyclic[0];
+                                } else {
+                                    trkPnt.customColoring = colors_cyclic[(int) (dirColor)];
+                                }
+                                break;
                             case dilution:
                                 if (trkPnt.attr.get("hdop") != null) {
@@ -647 +694 @@
         }
 
+        @Override
         public void actionPerformed(ActionEvent e) {
             JPanel msg = new JPanel(new GridBagLayout());
@@ -702 +750 @@
         }
 
+        @Override
         public void actionPerformed(ActionEvent e) {
             JPanel msg = new JPanel(new GridBagLayout());
@@ -876 +925 @@
             Main.worker.submit(
                     new Runnable() {
+                        @Override
                         public void run() {
                             try {
@@ -1087 +1137 @@
 
         Collections.sort((ArrayList<WayPoint>) waypoints, new Comparator<WayPoint>() {
+            @Override
             public int compare(WayPoint a, WayPoint b) {
                 return a.time <= b.time ? -1 : 1;
@@ -1405 +1456 @@
                 if (sel.length > 1) {
                     Arrays.sort(sel, new Comparator<File>() {
+                        @Override
                         public int compare(File a, File b) {
                             return a.lastModified() <= b.lastModified() ? -1 : 1;