void LoadNodeAndEdgeInformation(const boost::filesystem::path &nodes_file,
const boost::filesystem::path &edges_file)
{
boost::filesystem::ifstream nodes_input_stream(nodes_file, std::ios::binary);
QueryNode current_node;
unsigned number_of_coordinates = 0;
nodes_input_stream.read((char *)&number_of_coordinates, sizeof(unsigned));
m_coordinate_list =
std::make_shared<std::vector<FixedPointCoordinate>>(number_of_coordinates);
for (unsigned i = 0; i < number_of_coordinates; ++i)
{
nodes_input_stream.read((char *)¤t_node, sizeof(QueryNode));
m_coordinate_list->at(i) = FixedPointCoordinate(current_node.lat, current_node.lon);
BOOST_ASSERT((std::abs(m_coordinate_list->at(i).lat) >> 30) == 0);
BOOST_ASSERT((std::abs(m_coordinate_list->at(i).lon) >> 30) == 0);
}
nodes_input_stream.close();
boost::filesystem::ifstream edges_input_stream(edges_file, std::ios::binary);
unsigned number_of_edges = 0;
edges_input_stream.read((char *)&number_of_edges, sizeof(unsigned));
m_via_node_list.resize(number_of_edges);
m_name_ID_list.resize(number_of_edges);
m_turn_instruction_list.resize(number_of_edges);
m_travel_mode_list.resize(number_of_edges);
m_edge_is_compressed.resize(number_of_edges);
unsigned compressed = 0;
OriginalEdgeData current_edge_data;
for (unsigned i = 0; i < number_of_edges; ++i)
{
edges_input_stream.read((char *)&(current_edge_data), sizeof(OriginalEdgeData));
m_via_node_list[i] = current_edge_data.via_node;
m_name_ID_list[i] = current_edge_data.name_id;
m_turn_instruction_list[i] = current_edge_data.turn_instruction;
m_travel_mode_list[i] = current_edge_data.travel_mode;
m_edge_is_compressed[i] = current_edge_data.compressed_geometry;
if (m_edge_is_compressed[i])
{
++compressed;
}
}
edges_input_stream.close();
}
FixedPointCoordinateListPtr LoadCoordinates(const boost::filesystem::path &nodes_file)
{
boost::filesystem::ifstream nodes_input_stream(nodes_file, std::ios::binary);
QueryNode current_node;
unsigned coordinate_count = 0;
nodes_input_stream.read((char *)&coordinate_count, sizeof(unsigned));
auto coords = std::make_shared<std::vector<FixedPointCoordinate>>(coordinate_count);
for (unsigned i = 0; i < coordinate_count; ++i)
{
nodes_input_stream.read((char *)¤t_node, sizeof(QueryNode));
coords->at(i) = FixedPointCoordinate(current_node.lat, current_node.lon);
BOOST_ASSERT((std::abs(coords->at(i).lat) >> 30) == 0);
BOOST_ASSERT((std::abs(coords->at(i).lon) >> 30) == 0);
}
nodes_input_stream.close();
return coords;
}
SegmentInformation getTestInfo(int lat, int lon, bool necessary)
{
return SegmentInformation(FixedPointCoordinate(lat, lon), 0, 0, 0, TurnInstruction::HeadOn,
necessary, false, 0);
}
Handle<Value> Query::New(Arguments const& args)
{
HandleScope scope;
if (!args.IsConstructCall()) {
return ThrowException(Exception::Error(String::New("Cannot call constructor as function, you need to use 'new' keyword")));
}
try {
if (args.Length() != 1) {
return ThrowException(Exception::TypeError(String::New("please provide an object of options for the first argument")));
}
if (!args[0]->IsObject()) {
return ThrowException(Exception::TypeError(String::New("first argument must be an object")));
}
Local<Object> obj = args[0]->ToObject();
if (obj->IsNull() || obj->IsUndefined()) {
return ThrowException(Exception::TypeError(String::New("first arg must be an object")));
}
if (!obj->Has(String::NewSymbol("coordinates"))) {
return ThrowException(Exception::TypeError(String::New("must provide a coordinates property")));
}
Local<Value> coordinates = obj->Get(String::New("coordinates"));
if (!coordinates->IsArray()) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
Local<Array> coordinates_array = Local<Array>::Cast(coordinates);
if (coordinates_array->Length() < 2) {
return ThrowException(Exception::TypeError(String::New("at least two coordinates must be provided")));
}
Query* q = new Query();
q->this_->zoomLevel = 18; //no generalization
q->this_->printInstructions = true; //turn by turn instructions
q->this_->alternateRoute = true; //get an alternate route, too
q->this_->geometry = true; //retrieve geometry of route
q->this_->compression = true; //polyline encoding
q->this_->checkSum = UINT_MAX; //see wiki
q->this_->service = "viaroute"; //that's routing
q->this_->outputFormat = "json";
q->this_->jsonpParameter = ""; //set for jsonp wrapping
q->this_->language = ""; //unused atm
if (obj->Has(String::NewSymbol("alternateRoute"))) {
q->this_->alternateRoute = obj->Get(String::New("alternateRoute"))->BooleanValue();
}
for (uint32_t i = 0; i < coordinates_array->Length(); ++i) {
Local<Value> coordinate = coordinates_array->Get(i);
if (!coordinate->IsArray()) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
Local<Array> coordinate_array = Local<Array>::Cast(coordinate);
if (coordinate_array->Length() != 2) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
q->this_->coordinates.push_back(
FixedPointCoordinate(coordinate_array->Get(0)->NumberValue()*COORDINATE_PRECISION,
coordinate_array->Get(1)->NumberValue()*COORDINATE_PRECISION));
}
q->Wrap(args.This());
return args.This();
} catch (std::exception const& ex) {
return ThrowException(Exception::TypeError(String::New(ex.what())));
}
return Undefined();
}
void Benchmark(BenchStaticRTree &rtree, unsigned num_queries)
{
std::mt19937 mt_rand(RANDOM_SEED);
std::uniform_int_distribution<> lat_udist(WORLD_MIN_LAT, WORLD_MAX_LAT);
std::uniform_int_distribution<> lon_udist(WORLD_MIN_LON, WORLD_MAX_LON);
std::vector<FixedPointCoordinate> queries;
for (unsigned i = 0; i < num_queries; i++)
{
queries.emplace_back(FixedPointCoordinate(lat_udist(mt_rand), lon_udist(mt_rand)));
}
{
const unsigned num_results = 5;
std::cout << "#### IncrementalFindPhantomNodeForCoordinate : " << num_results
<< " phantom nodes"
<< "\n";
TIMER_START(query_phantom);
std::vector<PhantomNode> phantom_node_vector;
for (const auto &q : queries)
{
phantom_node_vector.clear();
rtree.IncrementalFindPhantomNodeForCoordinate(q, phantom_node_vector, 3, num_results);
phantom_node_vector.clear();
rtree.IncrementalFindPhantomNodeForCoordinate(q, phantom_node_vector, 17, num_results);
}
TIMER_STOP(query_phantom);
std::cout << "Took " << TIMER_MSEC(query_phantom) << " msec for " << num_queries
<< " queries."
<< "\n";
std::cout << TIMER_MSEC(query_phantom) / ((double)num_queries) << " msec/query."
<< "\n";
std::cout << "#### LocateClosestEndPointForCoordinate"
<< "\n";
}
TIMER_START(query_endpoint);
FixedPointCoordinate result;
for (const auto &q : queries)
{
rtree.LocateClosestEndPointForCoordinate(q, result, 3);
}
TIMER_STOP(query_endpoint);
std::cout << "Took " << TIMER_MSEC(query_endpoint) << " msec for " << num_queries << " queries."
<< "\n";
std::cout << TIMER_MSEC(query_endpoint) / ((double)num_queries) << " msec/query."
<< "\n";
std::cout << "#### FindPhantomNodeForCoordinate"
<< "\n";
TIMER_START(query_node);
for (const auto &q : queries)
{
PhantomNode phantom;
rtree.FindPhantomNodeForCoordinate(q, phantom, 3);
}
TIMER_STOP(query_node);
std::cout << "Took " << TIMER_MSEC(query_node) << " msec for " << num_queries << " queries."
<< "\n";
std::cout << TIMER_MSEC(query_node) / ((double)num_queries) << " msec/query."
<< "\n";
{
const unsigned num_results = 1;
std::cout << "#### IncrementalFindPhantomNodeForCoordinate : " << num_results
<< " phantom nodes"
<< "\n";
TIMER_START(query_phantom);
std::vector<PhantomNode> phantom_node_vector;
for (const auto &q : queries)
{
phantom_node_vector.clear();
rtree.IncrementalFindPhantomNodeForCoordinate(q, phantom_node_vector, 3, num_results);
phantom_node_vector.clear();
rtree.IncrementalFindPhantomNodeForCoordinate(q, phantom_node_vector, 17, num_results);
}
TIMER_STOP(query_phantom);
std::cout << "Took " << TIMER_MSEC(query_phantom) << " msec for " << num_queries
<< " queries."
<< "\n";
std::cout << TIMER_MSEC(query_phantom) / ((double)num_queries) << " msec/query."
<< "\n";
std::cout << "#### LocateClosestEndPointForCoordinate"
<< "\n";
}
}
inline float GetMinDist(const FixedPointCoordinate &location) const
{
const bool is_contained = Contains(location);
if (is_contained)
{
return 0.0f;
}
enum Direction
{
INVALID = 0,
NORTH = 1,
SOUTH = 2,
EAST = 4,
NORTH_EAST = 5,
SOUTH_EAST = 6,
WEST = 8,
NORTH_WEST = 9,
SOUTH_WEST = 10
};
Direction d = INVALID;
if (location.lat > max_lat)
d = (Direction) (d | NORTH);
else if (location.lat < min_lat)
d = (Direction) (d | SOUTH);
if (location.lon > max_lon)
d = (Direction) (d | EAST);
else if (location.lon < min_lon)
d = (Direction) (d | WEST);
BOOST_ASSERT(d != INVALID);
float min_dist = std::numeric_limits<float>::max();
switch (d)
{
case NORTH:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(max_lat, location.lon));
break;
case SOUTH:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(min_lat, location.lon));
break;
case WEST:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(location.lat, min_lon));
break;
case EAST:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(location.lat, max_lon));
break;
case NORTH_EAST:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(max_lat, max_lon));
break;
case NORTH_WEST:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(max_lat, min_lon));
break;
case SOUTH_EAST:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(min_lat, max_lon));
break;
case SOUTH_WEST:
min_dist = FixedPointCoordinate::ApproximateEuclideanDistance(location, FixedPointCoordinate(min_lat, min_lon));
break;
default:
break;
}
BOOST_ASSERT(min_dist != std::numeric_limits<float>::max());
return min_dist;
}
Handle<Value> Query::New(Arguments const& args)
{
HandleScope scope;
if (!args.IsConstructCall()) {
return ThrowException(Exception::Error(String::New("Cannot call constructor as function, you need to use 'new' keyword")));
}
try {
if (args.Length() != 1) {
return ThrowException(Exception::TypeError(String::New("please provide an object of options for the first argument")));
}
if (!args[0]->IsObject()) {
return ThrowException(Exception::TypeError(String::New("first argument must be an object")));
}
Local<Object> obj = args[0]->ToObject();
if (obj->IsNull() || obj->IsUndefined()) {
return ThrowException(Exception::TypeError(String::New("first arg must be an object")));
}
if (!obj->Has(String::New("coordinates"))) {
return ThrowException(Exception::TypeError(String::New("must provide a coordinates property")));
}
Local<Value> coordinates = obj->Get(String::New("coordinates"));
if (!coordinates->IsArray()) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
// Handle scenario in which caller explicitly specified service
std::string service;
if (obj->Has(String::New("service"))) {
Local<Value> serviceValue = obj->Get(String::New("service"));
v8::String::Utf8Value serviceUtf8Value(serviceValue->ToString());
service = std::string(*serviceUtf8Value);
}
// Handle 'nearest', otherwise assume 'viaroute' service.
if (service == "nearest" || service == "locate") {
Local<Array> coordinates_array = Local<Array>::Cast(coordinates);
if (coordinates_array->Length() != 1) {
return ThrowException(Exception::TypeError(String::New("coordinates array should only have one lat/long pair for 'nearest' or 'locate' queries")));
}
Local<Value> coordinate = coordinates_array->Get(0);
if (!coordinate->IsArray()) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
Local<Array> coordinate_array = Local<Array>::Cast(coordinate);
if (coordinate_array->Length() != 2) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
Query* q = new Query();
q->this_->service = service;
q->this_->coordinates.push_back(
FixedPointCoordinate(coordinate_array->Get(0)->NumberValue()*COORDINATE_PRECISION,
coordinate_array->Get(1)->NumberValue()*COORDINATE_PRECISION));
q->Wrap(args.This());
return args.This();
}
Local<Array> coordinates_array = Local<Array>::Cast(coordinates);
if (coordinates_array->Length() < 2) {
return ThrowException(Exception::TypeError(String::New("at least two coordinates must be provided")));
}
Query* q = new Query();
q->this_->zoomLevel = 18; //no generalization
q->this_->printInstructions = false; //turn by turn instructions
q->this_->alternateRoute = true; //get an alternate route, too
q->this_->geometry = true; //retrieve geometry of route
q->this_->compression = true; //polyline encoding
q->this_->checkSum = UINT_MAX; //see wiki
q->this_->service = "viaroute"; //that's routing
q->this_->outputFormat = "json";
q->this_->jsonpParameter = ""; //set for jsonp wrapping
q->this_->language = ""; //unused atm
if (obj->Has(String::New("alternateRoute"))) {
q->this_->alternateRoute = obj->Get(String::New("alternateRoute"))->BooleanValue();
}
if (obj->Has(String::New("checksum"))) {
q->this_->checkSum = static_cast<unsigned>(obj->Get(String::New("checksum"))->Uint32Value());
}
if (obj->Has(String::New("zoomLevel"))) {
q->this_->zoomLevel = static_cast<short>(obj->Get(String::New("zoomLevel"))->Int32Value());
}
if (obj->Has(String::New("printInstructions"))) {
q->this_->printInstructions = obj->Get(String::New("printInstructions"))->BooleanValue();
}
if (obj->Has(String::New("jsonpParameter"))) {
q->this_->jsonpParameter = *v8::String::Utf8Value(obj->Get(String::New("jsonpParameter")));
}
if (obj->Has(String::New("hints"))) {
Local<Value> hints = obj->Get(String::New("hints"));
if (!hints->IsArray()) {
return ThrowException(Exception::TypeError(String::New("hints must be an array of strings/null")));
}
Local<Array> hints_array = Local<Array>::Cast(hints);
for (uint32_t i = 0; i < hints_array->Length(); ++i) {
Local<Value> hint = hints_array->Get(i);
if (hint->IsString()) {
q->this_->hints.push_back(*v8::String::Utf8Value(hint));
} else if(hint->IsNull()){
q->this_->hints.push_back("");
}else{
return ThrowException(Exception::TypeError(String::New("hint must be null or string")));
}
}
}
for (uint32_t i = 0; i < coordinates_array->Length(); ++i) {
Local<Value> coordinate = coordinates_array->Get(i);
if (!coordinate->IsArray()) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
Local<Array> coordinate_array = Local<Array>::Cast(coordinate);
if (coordinate_array->Length() != 2) {
return ThrowException(Exception::TypeError(String::New("coordinates must be an array of (lat/long) pairs")));
}
q->this_->coordinates.push_back(
FixedPointCoordinate(coordinate_array->Get(0)->NumberValue()*COORDINATE_PRECISION,
coordinate_array->Get(1)->NumberValue()*COORDINATE_PRECISION));
}
q->Wrap(args.This());
return args.This();
} catch (std::exception const& ex) {
return ThrowException(Exception::TypeError(String::New(ex.what())));
}
return Undefined();
}
