Changeset 622 in josm

Timestamp:

2008-05-03T17:44:05+02:00 (17 years ago)

Author:

gebner

Message:

Color tracks by velocity.

Location:

trunk/src/org/openstreetmap/josm/gui

Files:

• layer/GpxLayer.java (modified) (3 diffs)
• preferences/DrawingPreference.java (modified) (4 diffs)

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

@@ -287 +287 @@
         }
 
+        private static Color[] colors = new Color[256];
+        static {
+                for (int i = 0; i < colors.length; i++) {
+                        colors[i] = Color.getHSBColor(i/300.0f, 1, 1);
+                }
+        }
+
         @Override public void paint(Graphics g, MapView mv) {
                 String gpsCol = Main.pref.get("color.gps point");
@@ -306 +313 @@
                         lines = Main.pref.getBoolean(linesKey);
                 boolean large = Main.pref.getBoolean("draw.rawgps.large");
+                boolean colored = Main.pref.getBoolean("draw.rawgps.colors");
 
                 Point old = null;
@@ -319 +327 @@
                                         Point screen = mv.getPoint(trkPnt.eastNorth);
                                         if (lines && old != null) {
+                                                double dist = trkPnt.latlon.greatCircleDistance(oldWp.latlon);
+                                                double dtime = trkPnt.time - oldWp.time;
+                                                double vel = dist/dtime;
+
+                                                if (colored && dtime > 0) {
+                                                        // scale linearly until 130km/h = 36.1m/s
+                                                        if (vel < 0 || vel > 36) {
+                                                                g.setColor(colors[255]);
+                                                        } else {
+                                                                g.setColor(colors[(int) (7*vel)]);
+                                                        }
+                                                }
                                                 
                                             // draw line, if no maxLineLength is set or the line is shorter.
-                                            if (maxLineLength == -1 || trkPnt.latlon.greatCircleDistance(oldWp.latlon) <= maxLineLength){
+                                            if (maxLineLength == -1 || dist <= maxLineLength){
                                                 g.drawLine(old.x, old.y, screen.x, screen.y);
 

trunk/src/org/openstreetmap/josm/gui/preferences/DrawingPreference.java

@@ -17 +17 @@
         private JCheckBox forceRawGpsLines = new JCheckBox(tr("Force lines if no segments imported."));
         private JCheckBox largeGpsPoints = new JCheckBox(tr("Draw large GPS points."));
+        private JCheckBox colorTracks = new JCheckBox(tr("Color tracks by velocity."));
         private JCheckBox directionHint = new JCheckBox(tr("Draw Direction Arrows"));
         private JCheckBox drawGpsArrows = new JCheckBox(tr("Draw Direction Arrows"));
@@ -34 +35 @@
                             forceRawGpsLines.setEnabled(drawRawGpsLines.isSelected());
                             drawGpsArrows.setEnabled(drawRawGpsLines.isSelected());
+                            colorTracks.setEnabled(drawRawGpsLines.isSelected());
                         }
                 });
@@ -51 +53 @@
                 drawGpsArrows.setEnabled(drawRawGpsLines.isSelected());
                 gui.display.add(drawGpsArrows, GBC.eop().insets(40,0,0,0));
+
+                // colorTracks
+                colorTracks.setSelected(Main.pref.getBoolean("draw.rawgps.colors"));
+                colorTracks.setToolTipText(tr("Choose the hue for the track color by the velocity at that point."));
+                colorTracks.setEnabled(drawRawGpsLines.isSelected());
+                gui.display.add(colorTracks, GBC.eop().insets(40,0,0,0));
                 
                 // largeGpsPoints
@@ -98 +106 @@
                 Main.pref.put("draw.rawgps.lines.force", forceRawGpsLines.isSelected());
                 Main.pref.put("draw.rawgps.direction", drawGpsArrows.isSelected());
+                Main.pref.put("draw.rawgps.colors", colorTracks.isSelected());
                 Main.pref.put("draw.rawgps.large", largeGpsPoints.isSelected());
                 Main.pref.put("draw.segment.direction", directionHint.isSelected());