@Override
public void messageArrived(String topic, MqttMessage mqttMessage) throws Exception {
if (topic.equals("Likaci/MqttMap")) {
String msg = new String(mqttMessage.getPayload());
JSONObject json = new JSONObject(msg);
if (!json.getString("id").equals(id)) {
Point p =
(Point)
GeometryEngine.project(
new Point(json.getDouble("x"), json.getDouble("y")),
SpatialReference.create(4326),
SpatialReference.create(3857));
layer.removeAll();
SimpleMarkerSymbol markerSymbol =
new SimpleMarkerSymbol(
Color.parseColor("#763382"), 15, SimpleMarkerSymbol.STYLE.DIAMOND);
layer.addGraphic(new Graphic(p, markerSymbol));
TextSymbol textSymbol =
new TextSymbol(
15,
json.getString("id"),
Color.parseColor("#763382"),
TextSymbol.HorizontalAlignment.CENTER,
TextSymbol.VerticalAlignment.MIDDLE);
textSymbol.setOffsetY(-15);
layer.addGraphic(new Graphic(p, textSymbol));
}
}
}
@Override
public void open() throws SourceException {
if (roads.isEmpty()) {
for (Entry entry : entries) {
Polyline geometry =
(Polyline)
GeometryEngine.geometryFromWkt(
entry.five(), WktImportFlags.wktImportDefaults, Type.Polyline);
roads.add(
new BaseRoad(
entry.one(),
entry.two(),
entry.three(),
entry.one(),
entry.four(),
(short) 0,
1.0f,
100.0f,
100.0f,
(float) spatial.length(geometry),
geometry));
}
}
iterator = roads.iterator();
}
@Override
public void onMouseClicked(MouseEvent e) {
Point pt = map.toMapPoint(e.getX(), e.getY());
Geometry buffer =
GeometryEngine.buffer(
pt, map.getSpatialReference(), 200000, map.getSpatialReference().getUnit());
Graphic g = new Graphic(buffer, bufferSymbol);
graphicsLayer.addGraphic(g);
}
private void updateToNewLocation(Location location) {
gpsLayer.removeAll();
double latitude = location.getLatitude();
double longitude = location.getLongitude();
Point ptMap1 =
(Point)
GeometryEngine.project(
new Point(longitude, latitude),
SpatialReference.create(4326),
mMapView.getSpatialReference());
gpsLayer.addGraphic(new Graphic(ptMap1, resultIcon));
// mMapView.zoomToScale(ptMap1, 4223);
// mMapView.centerAt(ptMap1, true);
}
@Override
protected Set<Tuple<MatcherCandidate, Double>> candidates(
Set<MatcherCandidate> predecessors, MatcherSample sample) {
if (logger.isTraceEnabled()) {
logger.trace(
"finding candidates for sample {} {}",
new SimpleDateFormat("yyyy-MM-dd HH:mm:ssZ").format(sample.time()),
GeometryEngine.geometryToWkt(sample.point(), WktExportFlags.wktExportPoint));
}
Set<RoadPoint> points_ = map.spatial().radius(sample.point(), radius);
Set<RoadPoint> points = new HashSet<RoadPoint>(Minset.minimize(points_));
Map<Long, RoadPoint> map = new HashMap<Long, RoadPoint>();
for (RoadPoint point : points) {
map.put(point.edge().id(), point);
}
for (MatcherCandidate predecessor : predecessors) {
RoadPoint point = map.get(predecessor.point().edge().id());
if (point != null && point.fraction() < predecessor.point().fraction()) {
points.remove(point);
points.add(predecessor.point());
}
}
Set<Tuple<MatcherCandidate, Double>> candidates =
new HashSet<Tuple<MatcherCandidate, Double>>();
logger.debug("{} ({}) candidates", points.size(), points_.size());
for (RoadPoint point : points) {
double dz = spatial.distance(sample.point(), point.geometry());
double emission = 1 / sqrt_2pi_sig2 * Math.exp((-1) * dz / (2 * sig2));
MatcherCandidate candidate = new MatcherCandidate(point);
candidates.add(new Tuple<MatcherCandidate, Double>(candidate, emission));
logger.trace("{} {} {}", candidate.id(), dz, emission);
}
return candidates;
}
private ArrayList<Node> createNodes() {
ArrayList<Node> nodes = new ArrayList<>();
String[] tables = new String[] {"mark", "xiangti", "jing", "gan", "lupaihao", "fangdajixiang"};
for (String tableName : tables) {
Cursor c = SQLiteAction.queryPoint(mSQLiteDatabase, tableName);
if (c != null) {
if (c.moveToFirst()) {
for (int i = 0; i < c.getCount(); ++i) {
c.moveToPosition(i);
String synchronize = c.getString(c.getColumnIndex("synchronize"));
if (synchronize != null && synchronize.equalsIgnoreCase("true")) {
continue;
}
Node node = new Node();
node.id = mNodeCounter;
mNodeCounter++;
PointBean point = new PointBean();
point.setSynchronize(false);
String id = c.getString(c.getColumnIndex("id"));
if (id != null && !id.equalsIgnoreCase("")) {
point.setId(id);
}
byte[] geometrys = c.getBlob(c.getColumnIndex("geometry"));
if (geometrys != null && geometrys.length > 0) {
Geometry geometry =
GeometryEngine.geometryFromEsriShape(geometrys, Geometry.Type.POINT);
point.setGeometry(geometry);
}
String name = c.getString(c.getColumnIndex("name"));
if (name != null && !name.equalsIgnoreCase("")) {
point.setName(name);
}
String typeString = c.getString(c.getColumnIndex("type"));
if (typeString != null && !typeString.equalsIgnoreCase("")) {
Integer index = Integer.parseInt(typeString);
PointBean.Type type = PointBean.Type.values()[index];
point.setType(type);
}
String description = c.getString(c.getColumnIndex("description"));
if (description != null && !description.equalsIgnoreCase("")) {
point.setDescription(description);
}
String remark = c.getString(c.getColumnIndex("remark"));
if (remark != null && !remark.equalsIgnoreCase("")) {
point.setRemark(remark);
}
String imageId = c.getString(c.getColumnIndex("imageIds"));
if (imageId != null && !imageId.equalsIgnoreCase("")) {
String[] imageIds = imageId.split("#");
point.setImageIds(imageIds);
}
String creator = c.getString(c.getColumnIndex("creator"));
if (creator != null && !creator.equalsIgnoreCase("")) {
point.setCreator(creator);
}
String createTime = c.getString(c.getColumnIndex("createtime"));
if (createTime != null && !createTime.equalsIgnoreCase("")) {
point.setCreateTime(Long.parseLong(createTime));
}
String lastEditor = c.getString(c.getColumnIndex("lasteditor"));
if (lastEditor != null && !lastEditor.equalsIgnoreCase("")) {
point.setLastEditor(lastEditor);
}
String modifyTime = c.getString(c.getColumnIndex("modifytime"));
if (modifyTime != null && !modifyTime.equalsIgnoreCase("")) {
point.setModifyTime(Long.parseLong(modifyTime));
}
node.point = point;
nodes.add(node);
}
}
}
}
return nodes;
}
@Override
protected Map<MatcherCandidate, Map<MatcherCandidate, Tuple<MatcherTransition, Double>>>
transitions(
final Tuple<MatcherSample, Set<MatcherCandidate>> predecessors,
final Tuple<MatcherSample, Set<MatcherCandidate>> candidates) {
if (logger.isTraceEnabled()) {
logger.trace(
"finding transitions for sample {} {} with {} x {} candidates",
new SimpleDateFormat("yyyy-MM-dd HH:mm:ssZ").format(candidates.one().time()),
GeometryEngine.geometryToWkt(candidates.one().point(), WktExportFlags.wktExportPoint),
predecessors.two().size(),
candidates.two().size());
}
Stopwatch sw = new Stopwatch();
sw.start();
final Set<RoadPoint> targets = new HashSet<RoadPoint>();
for (MatcherCandidate candidate : candidates.two()) {
targets.add(candidate.point());
}
final AtomicInteger count = new AtomicInteger();
final Map<MatcherCandidate, Map<MatcherCandidate, Tuple<MatcherTransition, Double>>>
transitions =
new ConcurrentHashMap<
MatcherCandidate, Map<MatcherCandidate, Tuple<MatcherTransition, Double>>>();
final double base =
1.0 * spatial.distance(predecessors.one().point(), candidates.one().point()) / 60;
final double bound =
Math.max(
1000d,
Math.min(
distance, ((candidates.one().time() - predecessors.one().time()) / 1000) * 100));
InlineScheduler scheduler = StaticScheduler.scheduler();
for (final MatcherCandidate predecessor : predecessors.two()) {
scheduler.spawn(
new Task() {
@Override
public void run() {
Map<MatcherCandidate, Tuple<MatcherTransition, Double>> map =
new HashMap<MatcherCandidate, Tuple<MatcherTransition, Double>>();
Stopwatch sw = new Stopwatch();
sw.start();
Map<RoadPoint, List<Road>> routes =
router.route(predecessor.point(), targets, cost, new Distance(), bound);
sw.stop();
logger.trace("{} routes ({} ms)", routes.size(), sw.ms());
for (MatcherCandidate candidate : candidates.two()) {
List<Road> edges = routes.get(candidate.point());
if (edges == null) {
continue;
}
Route route = new Route(predecessor.point(), candidate.point(), edges);
// According to Newson and Krumm 2009, transition probability is lambda *
// Math.exp((-1.0) * lambda * Math.abs(dt - route.length())), however, we
// experimentally choose lambda * Math.exp((-1.0) * lambda * Math.max(0,
// route.length() - dt)) to avoid unnecessary routes in case of u-turns.
double beta =
lambda == 0
? (2.0
* Math.max(1d, candidates.one().time() - predecessors.one().time())
/ 1000)
: 1 / lambda;
double transition =
(1 / beta)
* Math.exp(
(-1.0) * Math.max(0, route.cost(new TimePriority()) - base) / beta);
map.put(
candidate,
new Tuple<MatcherTransition, Double>(new MatcherTransition(route), transition));
logger.trace(
"{} -> {} {} {} {}",
predecessor.id(),
candidate.id(),
base,
route.length(),
transition);
count.incrementAndGet();
}
transitions.put(predecessor, map);
}
});
}
if (!scheduler.sync()) {
throw new RuntimeException();
}
sw.stop();
logger.trace("{} transitions ({} ms)", count.get(), sw.ms());
return transitions;
}