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Code Issues 12 Pull Requests Releases Wiki Activity

updated sensors and filter to current code version

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removed KLib stuff
added new activity
filter is uncommand!
at the moment, the app is not able to load new maps and breaks using old maps
This commit is contained in:
toni
2018-07-12 18:39:27 +02:00
parent b4a1a3d969
commit 625f5fe04d
22 changed files with 325 additions and 261 deletions
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56
Controller.cpp
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@@ -20,6 +20,7 @@
#include <Indoor/sensors/radio/WiFiGridEstimator.h>
#include <Indoor/sensors/radio/setup/WiFiOptimizerLogDistCeiling.h>
#include <Indoor/sensors/radio/model/WiFiModel.h>
#include <Indoor/Assertions.h>
@@ -189,6 +190,55 @@ void buildGridOnce(Grid<MyGridNode>* grid, Floorplan::IndoorMap* map, const std:
}
void buildWiFiModelOnce(WiFiModel* wifiModel, Floorplan::IndoorMap* map, const std::string& fpFile, const std::string& wifiModelFile){
// ask questions
const QMessageBox::StandardButton replyWiFiFP = QMessageBox::question(nullptr, "WiFi", "Use Fingerprints for WiFiCalibration?\n\nYes: Use fingerprints and num-optimize AP-Params\nNo: Use APs from the map.xml (pos+params)", QMessageBox::Yes|QMessageBox::No);
// WiFi setup
wifiModel = new WiFiModelLogDistCeiling(map);
if (replyWiFiFP == QMessageBox::Yes) {
std::ifstream inp(wifiModelFile, std::ifstream::binary);
if (!inp.good() || (inp.peek()&&0) || inp.eof()) {
Log::add("Controller", "Create new WiFiModel");
WiFiCalibrationDataModel mdl(fpFile);
Assert::isFalse(mdl.getFingerprints().empty(), "no fingerprints available!");
WiFiOptimizer::LogDistCeiling opt(map, Settings::WiFiModel::vg_calib);
for (const WiFiFingerprint& fp : mdl.getFingerprints()) {
opt.addFingerprint(fp);
}
const WiFiOptimizer::LogDistCeiling::APParamsList res = opt.optimizeAll(opt.NONE);
for (const WiFiOptimizer::LogDistCeiling::APParamsMAC& ap : res.get()) {
const WiFiModelLogDistCeiling::APEntry entry(ap.params.getPos(), ap.params.txp, ap.params.exp, ap.params.waf);
((WiFiModelLogDistCeiling*)wifiModel)->addAP(ap.mac, entry);
}
wifiModel->saveXML(wifiModelFile);
} else {
Log::add("Controller", "Use existing WifiModel");
// load WiFiModel from file. The factory will create the correct instance
//WiFiModel->loadXML(setup.wifiModel);
WiFiModelFactory fac(map);
wifiModel = fac.loadXML(wifiModelFile);
}
} else {
Log::add("Controller", "Read AP from File");
// load all APs from the floorplan and use same TXP/EXP/WAF for all of them
((WiFiModelLogDistCeiling*)wifiModel)->loadAPs(map, Settings::WiFiModel::TXP, Settings::WiFiModel::EXP, Settings::WiFiModel::WAF);
Assert::isFalse(wifiModel->getAllAPs().empty(), "no AccessPoints stored within the map.xml");
}
}
void Controller::on3DButton() {
static bool use3D = false;
@@ -266,6 +316,7 @@ void Controller::loadNavMesh(QDir dir) {
QFile fMap(dir.path() + "/map.xml");
QFile fGrid(dir.path() + "/grid.dat");
QFile fWiFiFP(dir.path() + "/wifi_fp.dat");
QFile fWiFiModel(dir.path() + "/wifimodel.dat");
Assert::isTrue(fMap.exists(), "map.xml missing");
@@ -274,6 +325,9 @@ void Controller::loadNavMesh(QDir dir) {
im = Floorplan::Reader::readFromString(str.toStdString());
const std::string sWiFiFP = fWiFiFP.fileName().toStdString();
const std::string sWiFiModel = fWiFiModel.fileName().toStdString();
buildWiFiModelOnce(wifiModel, im, sWiFiFP, sWiFiModel);
// create navmesh
if (navMesh) {delete navMesh; navMesh = nullptr;}
@@ -283,7 +337,7 @@ void Controller::loadNavMesh(QDir dir) {
// create a new navigator
if (nav) {delete nav; nav = nullptr;}
nav = new MeshBased::NavControllerMesh(this, im, navMesh);
nav = new MeshBased::NavControllerMesh(this, im, navMesh, wifiModel);
WiFiCalibrationDataModel* wifiCalib = new WiFiCalibrationDataModel(sWiFiFP);

2
Controller.h
View File

@@ -21,6 +21,7 @@ class MyGridNode;
class InfoWidget;
class MapView3D;
class MapView2D;
class WiFiModel;
namespace NM {
template <typename T> class NavMesh;
@@ -78,6 +79,7 @@ private:
NM::NavMesh<NM::NavMeshTriangle>* navMesh = nullptr;
NavController* nav = nullptr;
Floorplan::IndoorMap* im = nullptr;
WiFiModel* wifiModel = nullptr;
};

2
Settings.h
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@@ -39,7 +39,7 @@ namespace Settings {
namespace WiFiModel {
constexpr float sigma = 13.0;
constexpr float sigma = 13.0; //TODO: im Museum hatten wir 8.0
/** if the wifi-signal-strengths are stored on the grid-nodes, this needs a grid rebuild! */
constexpr float TXP = -48;

4
nav/NavController.h
View File

@@ -48,8 +48,8 @@ class NavController :
public SensorListener<WiFiMeasurements>,
public SensorListener<GPSData>,
public SensorListener<StepData>,
public SensorListener<TurnData>
//public SensorListener<ActivityData>
public SensorListener<TurnData>,
public SensorListener<ActivityData>
{

39
nav/grid/Filter.h
View File

@@ -1,13 +1,18 @@
#ifndef FILTER_H
#define FILTER_H
#include <KLib/math/filter/particles/ParticleFilter.h>
#include <Indoor/smc/Particle.h>
#include <Indoor/smc/filtering/ParticleFilter.h>
#include <Indoor/smc/filtering/ParticleFilterInitializer.h>
#include <KLib/math/filter/particles/estimation/ParticleFilterEstimationWeightedAverage.h>
#include <KLib/math/filter/particles/estimation/ParticleFilterEstimationOrderedWeightedAverage.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResamplingSimple.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResamplingKLD.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResamplingSimpleImpoverishment.h>
#include <KLib/math/filter/particles/resampling/ParticleFilterResamplingSimple.h>
#include <KLib/math/filter/particles/resampling/ParticleFilterResamplingPercent.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationBoxKDE.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationWeightedAverage.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationMax.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationOrderedWeightedAverage.h>
#include <Indoor/sensors/radio/WiFiProbabilityFree.h>
#include <Indoor/sensors/radio/model/WiFiModelLogDistCeiling.h>
@@ -31,7 +36,7 @@
namespace GridBased {
class PFInit : public K::ParticleFilterInitializer<MyState> {
class PFInit : public SMC::ParticleFilterInitializer<MyState> {
private:
@@ -43,14 +48,14 @@ namespace GridBased {
}
virtual void initialize(std::vector<K::Particle<MyState>>& particles) override {
virtual void initialize(std::vector<SMC::Particle<MyState>>& particles) override {
std::minstd_rand gen;
std::uniform_int_distribution<int> distIdx(0, grid->getNumNodes()-1);
std::uniform_real_distribution<float> distHead(0, 2*M_PI);
for (K::Particle<MyState>& p : particles) {
for (SMC::Particle<MyState>& p : particles) {
const int idx = distIdx(gen);
const MyGridNode& node = (*grid)[idx];
p.state.position = node; // random position
@@ -59,7 +64,7 @@ namespace GridBased {
}
// // fix position + heading
// for (K::Particle<MyState>& p : particles) {
// for (SMC::Particle<MyState>& p : particles) {
//// const int idx = 9000;
//// const MyGridNode& node = (*grid)[idx];
// const MyGridNode& node = grid->getNodeFor(GridPoint(2000, 2000, 0)); // center of the testmap
@@ -71,7 +76,7 @@ namespace GridBased {
};
class PFTrans : public K::ParticleFilterTransition<MyState, MyControl> {
class PFTrans : public SMC::ParticleFilterTransition<MyState, MyControl> {
public:
@@ -110,7 +115,7 @@ namespace GridBased {
void transition(std::vector<K::Particle<MyState>>& particles, const MyControl* _ctrl) override {
void transition(std::vector<SMC::Particle<MyState>>& particles, const MyControl* _ctrl) override {
// local copy!! observation might be changed async outside!! (will really produces crashes!)
this->ctrl = *_ctrl;
@@ -121,14 +126,14 @@ namespace GridBased {
// sanity check
Assert::equal((int)particles.size(), Settings::numParticles, "number of particles does not match the settings!");
//for (K::Particle<MyState>& p : particles) {
//for (SMC::Particle<MyState>& p : particles) {
#pragma omp parallel for num_threads(3)
for (int i = 0; i < Settings::numParticles; ++i) {
//#pragma omp atomic
const float dist_m = std::abs(ctrl.numStepsSinceLastTransition * Settings::IMU::stepLength + noise(gen));
K::Particle<MyState>& p = particles[i];
SMC::Particle<MyState>& p = particles[i];
double prob;
p.state = walker.getDestination(*grid, p.state, dist_m, prob);
@@ -147,7 +152,7 @@ namespace GridBased {
};
class PFEval : public K::ParticleFilterEvaluation<MyState, MyObservation> {
class PFEval : public SMC::ParticleFilterEvaluation<MyState, MyObservation> {
Grid<MyGridNode>* grid;
@@ -170,7 +175,7 @@ namespace GridBased {
}
double getStairProb(const K::Particle<MyState>& p, const Activity act) {
double getStairProb(const SMC::Particle<MyState>& p, const Activity act) {
const float kappa = 0.75;
@@ -195,7 +200,7 @@ namespace GridBased {
}
double evaluation(std::vector<K::Particle<MyState>>& particles, const MyObservation& _observation) override {
double evaluation(std::vector<SMC::Particle<MyState>>& particles, const MyObservation& _observation) override {
double sum = 0;
@@ -215,7 +220,7 @@ namespace GridBased {
#pragma omp parallel for num_threads(3)
for (int i = 0; i < Settings::numParticles; ++i) {
K::Particle<MyState>& p = particles[i];
SMC::Particle<MyState>& p = particles[i];
// WiFi free
//const double pWiFi = wiFiProbability.getProbability(p.state.position.inMeter()+person, observation.currentTime, vg.group(observation.wifi));

27
nav/grid/NavControllerGrid.cpp
View File

@@ -21,25 +21,25 @@ Q_DECLARE_METATYPE(const void*)
GridBased::NavControllerGrid::NavControllerGrid(Controller* mainController, Floorplan::IndoorMap* im, Grid<MyGridNode>* grid) : NavController(mainController, im), grid(grid), wifiModel(im) {
// filter init
std::unique_ptr<K::ParticleFilterInitializer<MyState>> init(new PFInit(grid));
std::unique_ptr<SMC::ParticleFilterInitializer<MyState>> init(new PFInit(grid));
// estimation
//std::unique_ptr<K::ParticleFilterEstimationWeightedAverage<MyState>> estimation(new K::ParticleFilterEstimationWeightedAverage<MyState>());
std::unique_ptr<K::ParticleFilterEstimationOrderedWeightedAverage<MyState>> estimation(new K::ParticleFilterEstimationOrderedWeightedAverage<MyState>(0.5));
//std::unique_ptr<SMC::ParticleFilterEstimationWeightedAverage<MyState>> estimation(new SMC::ParticleFilterEstimationWeightedAverage<MyState>());
std::unique_ptr<SMC::ParticleFilterEstimationOrderedWeightedAverage<MyState>> estimation(new SMC::ParticleFilterEstimationOrderedWeightedAverage<MyState>(0.5));
// resampling
std::unique_ptr<NodeResampling<MyState, MyGridNode>> resample(new NodeResampling<MyState, MyGridNode>(*grid));
//std::unique_ptr<K::ParticleFilterResamplingSimple<MyState>> resample(new K::ParticleFilterResamplingSimple<MyState>());
//std::unique_ptr<K::ParticleFilterResamplingPercent<MyState>> resample(new K::ParticleFilterResamplingPercent<MyState>(0.05));
//std::unique_ptr<SMC::ParticleFilterResamplingSimple<MyState>> resample(new SMC::ParticleFilterResamplingSimple<MyState>());
//std::unique_ptr<SMC::ParticleFilterResamplingPercent<MyState>> resample(new SMC::ParticleFilterResamplingPercent<MyState>(0.05));
//std::unique_ptr<RegionalResampling> resample(new RegionalResampling());
// eval and transition
wifiModel.loadAPs(im, Settings::WiFiModel::TXP, Settings::WiFiModel::EXP, Settings::WiFiModel::WAF);
std::unique_ptr<K::ParticleFilterEvaluation<MyState, MyObservation>> eval(new PFEval(grid, wifiModel));
std::unique_ptr<K::ParticleFilterTransition<MyState, MyControl>> transition(new PFTrans(grid));
std::unique_ptr<SMC::ParticleFilterEvaluation<MyState, MyObservation>> eval(new PFEval(grid, wifiModel));
std::unique_ptr<SMC::ParticleFilterTransition<MyState, MyControl>> transition(new PFTrans(grid));
// setup the filter
pf = std::unique_ptr<K::ParticleFilter<MyState, MyControl, MyObservation>>(new K::ParticleFilter<MyState, MyControl, MyObservation>(Settings::numParticles, std::move(init)));
pf = std::unique_ptr<SMC::ParticleFilter<MyState, MyControl, MyObservation>>(new SMC::ParticleFilter<MyState, MyControl, MyObservation>(Settings::numParticles, std::move(init)));
pf->setTransition(std::move(transition));
pf->setEvaluation(std::move(eval));
pf->setEstimation(std::move(estimation));
@@ -56,7 +56,7 @@ GridBased::NavControllerGrid::NavControllerGrid(Controller* mainController, Floo
SensorFactory::get().getWiFi().addListener(this);
SensorFactory::get().getSteps().addListener(this);
SensorFactory::get().getTurns().addListener(this);
//SensorFactory::get().getActivity().addListener(this);
SensorFactory::get().getActivity().addListener(this);
}
@@ -141,6 +141,15 @@ void GridBased::NavControllerGrid::onSensorData(Sensor<TurnData>* sensor, const
gotSensorData(ts);
}
void GridBased::NavControllerGrid::onSensorData(Sensor<ActivityData>* sensor, const Timestamp ts, const ActivityData& data) {
(void) sensor;
(void) ts;
curCtrl.activity = data.curActivity;
curObs.activity = data.curActivity;
//debugActivity(data.curActivity);
gotSensorData(ts);
}
/** called when any sensor has received new data */
void GridBased::NavControllerGrid::gotSensorData(const Timestamp ts) {
curObs.currentTime = ts;

4
nav/grid/NavControllerGrid.h
View File

@@ -28,7 +28,7 @@ namespace GridBased {
Grid<MyGridNode>* grid;
WiFiModelLogDistCeiling wifiModel;
std::unique_ptr<K::ParticleFilter<MyState, MyControl, MyObservation>> pf;
std::unique_ptr<SMC::ParticleFilter<MyState, MyControl, MyObservation>> pf;
DijkstraPath<MyGridNode> pathToDest;
@@ -60,7 +60,7 @@ namespace GridBased {
void onSensorData(Sensor<TurnData>* sensor, const Timestamp ts, const TurnData& data) override;
// void onSensorData(Sensor<ActivityData>* sensor, const Timestamp ts, const ActivityData& data) override ;
void onSensorData(Sensor<ActivityData>* sensor, const Timestamp ts, const ActivityData& data) override ;
private:

12
nav/grid/NodeResampling.h
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@@ -6,7 +6,7 @@
#include <random>
#include <Indoor/grid/Grid.h>
#include <KLib/math/filter/particles/resampling/ParticleFilterResampling.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResampling.h>
/**
@@ -16,12 +16,12 @@
* O(log(n)) per particle
*/
template <typename State, typename Node>
class NodeResampling : public K::ParticleFilterResampling<State> {
class NodeResampling : public SMC::ParticleFilterResampling<State> {
private:
/** this is a copy of the particle-set to draw from it */
std::vector<K::Particle<State>> particlesCopy;
std::vector<SMC::Particle<State>> particlesCopy;
/** random number generator */
std::minstd_rand gen;
@@ -35,7 +35,7 @@
gen.seed(1234);
}
void resample(std::vector<K::Particle<State>>& particles) override {
void resample(std::vector<SMC::Particle<State>>& particles) override {
// compile-time sanity checks
// TODO: this solution requires EXPLICIT overloading which is bad...
@@ -99,7 +99,7 @@
private:
/** draw one particle according to its weight from the copy vector */
const K::Particle<State>& draw(const double cumWeight) {
const SMC::Particle<State>& draw(const double cumWeight) {
// generate random values between [0:cumWeight]
std::uniform_real_distribution<float> dist(0, cumWeight);
@@ -108,7 +108,7 @@
const float rand = dist(gen);
// search comparator (cumWeight is ordered -> use binary search)
auto comp = [] (const K::Particle<State>& s, const float d) {return s.weight < d;};
auto comp = [] (const SMC::Particle<State>& s, const float d) {return s.weight < d;};
auto it = std::lower_bound(particlesCopy.begin(), particlesCopy.end(), rand, comp);
return *it;

20
nav/grid/RegionalResampling.h
View File

@@ -1,12 +1,12 @@
#ifndef REGIONALRESAMPLING_H
#define REGIONALRESAMPLING_H
#include <KLib/math/filter/particles/ParticleFilter.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResampling.h>
#include "State.h"
namespace GridBased {
class RegionalResampling : public K::ParticleFilterResampling<MyState> {
class RegionalResampling : public SMC::ParticleFilterResampling<MyState> {
public:
@@ -14,25 +14,25 @@ namespace GridBased {
RegionalResampling() {;}
void resample(std::vector<K::Particle<MyState>>& particles) override {
void resample(std::vector<SMC::Particle<MyState>>& particles) override {
Point3 sum;
for (const K::Particle<MyState>& p : particles) {
for (const SMC::Particle<MyState>& p : particles) {
sum += p.state.position.inMeter();
}
const Point3 avg = sum / particles.size();
std::vector<K::Particle<MyState>> next;
for (const K::Particle<MyState>& p : particles) {
std::vector<SMC::Particle<MyState>> next;
for (const SMC::Particle<MyState>& p : particles) {
const float dist = p.state.position.inMeter().getDistance(avg);
if (rand() % 6 != 0) {continue;}
if (dist < maxDist) {next.push_back(p);}
}
// cumulate
std::vector<K::Particle<MyState>> copy = particles;
std::vector<SMC::Particle<MyState>> copy = particles;
double cumWeight = 0;
for ( K::Particle<MyState>& p : copy) {
for ( SMC::Particle<MyState>& p : copy) {
cumWeight += p.weight;
p.weight = cumWeight;
}
@@ -50,7 +50,7 @@ namespace GridBased {
std::minstd_rand gen;
/** draw one particle according to its weight from the copy vector */
const K::Particle<MyState>& draw(std::vector<K::Particle<MyState>>& copy, const double cumWeight) {
const SMC::Particle<MyState>& draw(std::vector<SMC::Particle<MyState>>& copy, const double cumWeight) {
// generate random values between [0:cumWeight]
std::uniform_real_distribution<float> dist(0, cumWeight);
@@ -59,7 +59,7 @@ namespace GridBased {
const float rand = dist(gen);
// search comparator (cumWeight is ordered -> use binary search)
auto comp = [] (const K::Particle<MyState>& s, const float d) {return s.weight < d;};
auto comp = [] (const SMC::Particle<MyState>& s, const float d) {return s.weight < d;};
auto it = std::lower_bound(copy.begin(), copy.end(), rand, comp);
return *it;

189
nav/mesh/FilterMesh.h
View File

@@ -1,13 +1,18 @@
#ifndef FILTERMESH_
#define FILTERMESH_
#include <KLib/math/filter/particles/ParticleFilter.h>
#include <Indoor/smc/Particle.h>
#include <Indoor/smc/filtering/ParticleFilter.h>
#include <Indoor/smc/filtering/ParticleFilterInitializer.h>
#include <KLib/math/filter/particles/estimation/ParticleFilterEstimationWeightedAverage.h>
#include <KLib/math/filter/particles/estimation/ParticleFilterEstimationOrderedWeightedAverage.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResamplingSimple.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResamplingKLD.h>
#include <Indoor/smc/filtering/resampling/ParticleFilterResamplingSimpleImpoverishment.h>
#include <KLib/math/filter/particles/resampling/ParticleFilterResamplingSimple.h>
#include <KLib/math/filter/particles/resampling/ParticleFilterResamplingPercent.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationBoxKDE.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationWeightedAverage.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationMax.h>
#include <Indoor/smc/filtering/estimation/ParticleFilterEstimationOrderedWeightedAverage.h>
#include <Indoor/sensors/radio/WiFiProbabilityFree.h>
#include <Indoor/sensors/radio/model/WiFiModelLogDistCeiling.h>
@@ -18,6 +23,7 @@
#include <Indoor/navMesh/walk/NavMeshWalkSimple.h>
#include "State.h"
#include "../Observation.h"
#include "../../Settings.h"
#include <omp.h>
@@ -25,33 +31,33 @@
namespace MeshBased {
class PFInit : public K::ParticleFilterInitializer<MyState> {
class PFInit : public SMC::ParticleFilterInitializer<MyState> {
private:
NM::NavMesh<NM::NavMeshTriangle>* mesh;
const NM::NavMesh<NM::NavMeshTriangle>* mesh;
public:
PFInit(NM::NavMesh<NM::NavMeshTriangle>* mesh) : mesh(mesh) {
PFInit(const NM::NavMesh<NM::NavMeshTriangle>* mesh) : mesh(mesh) {
;
}
virtual void initialize(std::vector<K::Particle<MyState>>& particles) override {
virtual void initialize(std::vector<SMC::Particle<MyState>>& particles) override {
std::minstd_rand gen;
std::uniform_real_distribution<float> distHead(0, 2*M_PI);
NM::NavMeshRandom<NM::NavMeshTriangle> rnd = mesh->getRandom();
for (K::Particle<MyState>& p : particles) {
for (SMC::Particle<MyState>& p : particles) {
p.state.loc = rnd.draw();
p.state.heading = Heading(distHead(gen)); // random heading
p.weight = 1.0 / particles.size(); // equal weight
}
// // fix position + heading
// for (K::Particle<MyState>& p : particles) {
// for (SMC::Particle<MyState>& p : particles) {
//// const int idx = 9000;
//// const MyGridNode& node = (*grid)[idx];
// const MyGridNode& node = grid->getNodeFor(GridPoint(2000, 2000, 0)); // center of the testmap
@@ -63,107 +69,109 @@ namespace MeshBased {
};
/*
class PFTrans : public K::ParticleFilterTransition<MyState, MyControl> {
class PFTrans : public SMC::ParticleFilterTransition<MyState, MyControl> {
public:
using MyNavMeshWalk = NM::NavMeshWalkSimple<NM::NavMeshTriangle>;
//using MyNavMeshWalk = NM::NavMeshWalkWifiRegional<NM::NavMeshTriangle>;
//using MyNavMeshWalk = NM::NavMeshWalkUnblockable<NM::NavMeshTriangle>;
MyNavMeshWalk walker;
// local, static control-data COPY
MyControl ctrl;
Grid<MyGridNode>* grid;
GridWalker<MyGridNode, MyState> walker;
WalkModuleFavorZ<MyGridNode, MyState> modFavorZ;
WalkModuleHeadingControl<MyGridNode, MyState, MyControl> modHeading;
WalkModuleNodeImportance<MyGridNode, MyState> modImportance;
WalkModuleFollowDestination<MyGridNode, MyState> modDestination;
WalkModuleActivityControl<MyGridNode, MyState, MyControl> modActivity;
NodeResampling<MyState, MyGridNode> resampler;
std::minstd_rand gen;
public:
PFTrans(Grid<MyGridNode>* grid) : grid(grid), modHeading(&ctrl, Settings::IMU::turnSigma), modDestination(*grid), modActivity(&ctrl), resampler(*grid) {
PFTrans(NM::NavMesh<NM::NavMeshTriangle>* mesh) : walker(*mesh){
//walker.addModule(&modFavorZ);
walker.addModule(&modHeading);
//walker.addModule(&modImportance);
walker.addModule(&modActivity);
if (Settings::destination != GridPoint(0,0,0)) {
//walker.addModule(&modDestination);
modDestination.setDestination(grid->getNodeFor(Settings::destination));
}
// how to evaluate drawn points
//walker.addEvaluator(new NM::WalkEvalHeadingStartEndNormal<MyNavMeshTriangle>(0.04));
//walker.addEvaluator(new NM::WalkEvalDistance<MyNavMeshTriangle>(0.1));
//walker.addEvaluator(new NM::WalkEvalApproachesTarget<MyNavMeshTriangle>(0.9)); // 90% for particles moving towards the target
}
void transition(std::vector<K::Particle<MyState>>& particles, const MyControl* _ctrl) override {
void transition(std::vector<SMC::Particle<MyState>>& particles, const MyControl* _ctrl) override {
// local copy!! observation might be changed async outside!! (will really produces crashes!)
this->ctrl = *_ctrl;
((MyControl*)_ctrl)->resetAfterTransition();
std::normal_distribution<float> noise(0, Settings::IMU::stepSigma);
// walking and heading random
Distribution::Normal<float> dStepSizeFloor(0.70, 0.1);
Distribution::Normal<float> dStepSizeStair(0.35, 0.1);
Distribution::Normal<float> dHeading(0.0, 0.1);
// sanity check
Assert::equal((int)particles.size(), Settings::numParticles, "number of particles does not match the settings!");
//for (K::Particle<MyState>& p : particles) {
#pragma omp parallel for num_threads(3)
for (int i = 0; i < Settings::numParticles; ++i) {
for (int i = 0; i < particles.size(); ++i) {
SMC::Particle<MyState>& p = particles[i];
//#pragma omp atomic
const float dist_m = std::abs(ctrl.numStepsSinceLastTransition * Settings::IMU::stepLength + noise(gen));
// how to walk
NM::NavMeshWalkParams<NM::NavMeshTriangle> params;
params.heading = p.state.heading + ctrl.turnSinceLastTransition_rad + dHeading.draw();
params.numSteps = ctrl.numStepsSinceLastTransition;
params.start = p.state.loc;
K::Particle<MyState>& p = particles[i];
params.stepSizes.stepSizeFloor_m = dStepSizeFloor.draw();
params.stepSizes.stepSizeStair_m = dStepSizeStair.draw();
double prob;
p.state = walker.getDestination(*grid, p.state, dist_m, prob);
//p.weight *= prob;//(prob > 0.01) ? (1.0) : (0.15);
//p.weight = (prob > 0.01) ? (1.0) : (0.15);
//p.weight = prob;
//p.weight = 1.0; // reset
//p.weight = std::pow(p.weight, 0.1); // make all particles a little more equal [less strict]
//p.weight *= std::pow(prob, 0.1); // add grid-walk-probability
p.weight = prob; // grid-walk-probability
if (p.weight != p.weight) {throw Exception("nan");}
if(params.stepSizes.stepSizeFloor_m < 0.1 || params.stepSizes.stepSizeStair_m < 0.1){
params.stepSizes.stepSizeFloor_m = 0.1;
params.stepSizes.stepSizeStair_m = 0.1;
}
// walk
MyNavMeshWalk::ResultEntry res = walker.getOne(params);
// assign back to particle's state
p.weight *= res.probability;
p.state.loc = res.location;
p.state.heading = res.heading;
}
}
};
class PFEval : public K::ParticleFilterEvaluation<MyState, MyObservation> {
Grid<MyGridNode>* grid;
class PFEval : public SMC::ParticleFilterEvaluation<MyState, MyObservation> {
WiFiModelLogDistCeiling& wifiModel;
WiFiModel& wifiModel;
WiFiObserverFree wifiProbability;
double getStairProb(const SMC::Particle<MyState>& p, const Activity act) {
//WiFiObserverFree wiFiProbability; // free-calculation
WiFiObserverGrid<MyGridNode> wiFiProbability; // grid-calculation
const float kappa = 0.75;
// smartphone is 1.3 meter above ground
const Point3 person = Point3(0,0,Settings::smartphoneAboveGround);
switch (act) {
case Activity::WALKING:
if (p.state.loc.tria->getType() == (int) NM::NavMeshType::FLOOR_INDOOR) {return kappa;}
if (p.state.loc.tria->getType() == (int) NM::NavMeshType::DOOR) {return kappa;}
if (p.state.loc.tria->getType() == (int) NM::NavMeshType::STAIR_LEVELED) {return kappa;}
{return 1-kappa;}
case Activity::WALKING_UP:
case Activity::WALKING_DOWN:
if (p.state.loc.tria->getType() == (int) NM::NavMeshType::STAIR_SKEWED) {return kappa;}
if (p.state.loc.tria->getType() == (int) NM::NavMeshType::STAIR_LEVELED) {return kappa;}
if (p.state.loc.tria->getType() == (int) NM::NavMeshType::ELEVATOR) {return kappa;}
{return 1-kappa;}
}
return 1.0;
}
public:
PFEval(Grid<MyGridNode>* grid, WiFiModelLogDistCeiling& wifiModel) :
grid(grid), wifiModel(wifiModel),
//wiFiProbability(Settings::WiFiModel::sigma, wifiModel) { // WiFi free
wiFiProbability(Settings::WiFiModel::sigma) { // WiFi grid
//TODO: Was ist hier besser? Im Museum hatten wir das unterste.
//PFEval(WiFiModel* wifiModel) : wifiModel(*wifiModel), wifiProbability(Settings::WiFiModel::sigma, *wifiModel){}
//PFEval(WiFiModel* wifiModel) : wifiModel(*wifiModel), wifiProbability(Settings::WiFiModel::sigma, *wifiModel, WiFiObserverFree::EvalDist::EXPONENTIAL){}
PFEval(WiFiModel* wifiModel) : wifiModel(*wifiModel), wifiProbability(Settings::WiFiModel::sigma, *wifiModel, WiFiObserverFree::EvalDist::CAPPED_NORMAL_DISTRIBUTION){}
}
double evaluation(std::vector<K::Particle<MyState>>& particles, const MyObservation& _observation) override {
double evaluation(std::vector<SMC::Particle<MyState>>& particles, const MyObservation& _observation) override {
double sum = 0;
@@ -171,41 +179,27 @@ namespace MeshBased {
const MyObservation observation = _observation;
// vap-grouping
const int numAP1 = observation.wifi.entries.size();
const WiFiMeasurements wifiObs = Settings::WiFiModel::vg_eval.group(_observation.wifi);
const int numAP2 = wifiObs.entries.size();
Log::add("Filter", "VAP: " + std::to_string(numAP1) + " -> " + std::to_string(numAP2));
const WiFiMeasurements wifiObs = Settings::WiFiModel::vg_eval.group(observation.wifi);
// sanity check
Assert::equal((int)particles.size(), Settings::numParticles, "number of particles does not match the settings!");
// assign weights
#pragma omp parallel for num_threads(3)
for (int i = 0; i < Settings::numParticles; ++i) {
K::Particle<MyState>& p = particles[i];
// WiFi free
//const double pWiFi = wiFiProbability.getProbability(p.state.position.inMeter()+person, observation.currentTime, vg.group(observation.wifi));
// WiFi grid
const MyGridNode& node = grid->getNodeFor(p.state.position);
const double pWiFi = wiFiProbability.getProbability(node, observation.currentTime, wifiObs);
//Log::add("xxx", std::to_string(observation.currentTime.ms()) + "_" + std::to_string(wifiObs.entries[0].ts.ms()));
for (size_t i = 0; i < particles.size(); ++i) {
SMC::Particle<MyState>& p = particles[i];
const double pWifi = wifiProbability.getProbability(p.state.loc.pos, observation.currentTime, wifiObs);
const double pStair = getStairProb(p, observation.activity);
const double pGPS = 1;
const double prob = pWiFi * pGPS * pStair;
p.weight *= prob; // NOTE: keeps the weight returned by the transition step!
//p.weight = prob; // does NOT keep the weights returned by the transition step
const double prob = pWifi * pStair * pGPS;
p.weight *= prob;
if (p.weight != p.weight) {throw Exception("nan");}
#pragma omp atomic
sum += p.weight;
}
return sum;
@@ -214,7 +208,6 @@ namespace MeshBased {
};
*/
}
#endif // FILTERMESH_

70
nav/mesh/NavControllerMesh.cpp
View File

@@ -31,37 +31,35 @@
Q_DECLARE_METATYPE(const void*)
/** ctor */
MeshBased::NavControllerMesh::NavControllerMesh(Controller* mainController, Floorplan::IndoorMap* im, NM::NavMesh<NM::NavMeshTriangle>* navMesh) :
NavController(mainController, im), navMesh(navMesh), wifiModel(im) {
MeshBased::NavControllerMesh::NavControllerMesh(Controller* mainController, Floorplan::IndoorMap* im, NM::NavMesh<NM::NavMeshTriangle>* navMesh, WiFiModel* wifiModel) :
NavController(mainController, im), navMesh(navMesh), wifiModel(wifiModel) {
// filter init
std::unique_ptr<K::ParticleFilterInitializer<MyState>> init(new MeshBased::PFInit(navMesh));
std::unique_ptr<SMC::ParticleFilterInitializer<MeshBased::MyState>> init(new MeshBased::PFInit(navMesh));
// // estimation
// //std::unique_ptr<K::ParticleFilterEstimationWeightedAverage<MyState>> estimation(new K::ParticleFilterEstimationWeightedAverage<MyState>());
// std::unique_ptr<K::ParticleFilterEstimationOrderedWeightedAverage<MyState>> estimation(new K::ParticleFilterEstimationOrderedWeightedAverage<MyState>(0.5));
// estimation
std::unique_ptr<SMC::ParticleFilterEstimationWeightedAverage<MeshBased::MyState>> estimation(new SMC::ParticleFilterEstimationWeightedAverage<MeshBased::MyState>());
//std::unique_ptr<SMC::ParticleFilterEstimationOrderedWeightedAverage<MyState>> estimation(new SMC::ParticleFilterEstimationOrderedWeightedAverage<MyState>(0.5));
// // resampling
// std::unique_ptr<NodeResampling<MyState, MyGridNode>> resample(new NodeResampling<MyState, MyGridNode>(*grid));
// //std::unique_ptr<K::ParticleFilterResamplingSimple<MyState>> resample(new K::ParticleFilterResamplingSimple<MyState>());
// //std::unique_ptr<K::ParticleFilterResamplingPercent<MyState>> resample(new K::ParticleFilterResamplingPercent<MyState>(0.05));
// //std::unique_ptr<RegionalResampling> resample(new RegionalResampling());
// resampling
//std::unique_ptr<SMC::ParticleFilterResamplingSimple<MyState>> resample(new SMC::ParticleFilterResamplingSimple<MyState>());
//std::unique_ptr<SMC::ParticleFilterResamplingPercent<MyState>> resample(new SMC::ParticleFilterResamplingPercent<MyState>(0.05));
std::unique_ptr<SMC::ParticleFilterResamplingSimpleImpoverishment<MeshBased::MyState, NM::NavMeshTriangle>> resample(new SMC::ParticleFilterResamplingSimpleImpoverishment<MeshBased::MyState, NM::NavMeshTriangle>());
// // eval and transition
// wifiModel.loadAPs(im, Settings::WiFiModel::TXP, Settings::WiFiModel::EXP, Settings::WiFiModel::WAF);
// std::unique_ptr<K::ParticleFilterEvaluation<MyState, MyObservation>> eval(new PFEval(grid, wifiModel));
// std::unique_ptr<K::ParticleFilterTransition<MyState, MyControl>> transition(new PFTrans(grid));
// eval and transition
std::unique_ptr<SMC::ParticleFilterEvaluation<MyState, MyObservation>> eval(new MeshBased::PFEval(wifiModel));
std::unique_ptr<SMC::ParticleFilterTransition<MyState, MyControl>> transition(new MeshBased::PFTrans(navMesh));
// // setup the filter
// pf = std::unique_ptr<K::ParticleFilter<MyState, MyControl, MyObservation>>(new K::ParticleFilter<MyState, MyControl, MyObservation>(Settings::numParticles, std::move(init)));
// pf->setTransition(std::move(transition));
// pf->setEvaluation(std::move(eval));
// pf->setEstimation(std::move(estimation));
// pf->setResampling(std::move(resample));
// setup the filter
pf = std::unique_ptr<SMC::ParticleFilter<MyState, MyControl, MyObservation>>(new SMC::ParticleFilter<MyState, MyControl, MyObservation>(Settings::numParticles, std::move(init)));
pf->setTransition(std::move(transition));
pf->setEvaluation(std::move(eval));
pf->setEstimation(std::move(estimation));
pf->setResampling(std::move(resample));
// pf->setNEffThreshold(0.85); //before 0.75, edit by toni
// //pf->setNEffThreshold(0.65); // still too low?
// //pf->setNEffThreshold(0.25); // too low
pf->setNEffThreshold(0.85); //before 0.75, edit by toni
//pf->setNEffThreshold(0.65); // still too low?
//pf->setNEffThreshold(0.25); // too low
// attach as listener to all sensors
SensorFactory::get().getAccelerometer().addListener(this);
@@ -70,7 +68,7 @@ MeshBased::NavControllerMesh::NavControllerMesh(Controller* mainController, Floo
SensorFactory::get().getWiFi().addListener(this);
SensorFactory::get().getSteps().addListener(this);
SensorFactory::get().getTurns().addListener(this);
//SensorFactory::get().getActivity().addListener(this);
SensorFactory::get().getActivity().addListener(this);
// hacky.. but we need to call this one from the main thread!
//mainController->getMapView()->showParticles(pf->getParticles());
@@ -161,14 +159,14 @@ void MeshBased::NavControllerMesh::onSensorData(Sensor<TurnData>* sensor, const
gotSensorData(ts);
}
// void NavControllerMesh::onSensorData(Sensor<ActivityData>* sensor, const Timestamp ts, const ActivityData& data) {
// (void) sensor;
// (void) ts;
// curCtrl.activity = data.curActivity;
// curObs.activity = data.curActivity;
// debugActivity(data.curActivity);
// gotSensorData(ts);
// }
void MeshBased::NavControllerMesh::onSensorData(Sensor<ActivityData>* sensor, const Timestamp ts, const ActivityData& data) {
(void) sensor;
(void) ts;
curCtrl.activity = data.curActivity;
curObs.activity = data.curActivity;
//debugActivity(data.curActivity);
gotSensorData(ts);
}
/** called when any sensor has received new data */
void MeshBased::NavControllerMesh::gotSensorData(const Timestamp ts) {
@@ -179,9 +177,9 @@ void MeshBased::NavControllerMesh::gotSensorData(const Timestamp ts) {
// void debugActivity(const ActivityData& activity) {
// QString act;
// switch(activity.curActivity) {
// case ActivityButterPressure::Activity::STAY: act = "STAY"; break;
// case ActivityButterPressure::Activity::DOWN: act = "DOWN"; break;
// case ActivityButterPressure::Activity::UP: act = "UP"; break;
// case Activity::STANDING: act = "STAY"; break;
// case Activity::WALKING_DOWN: act = "DOWN"; break;
// case Activity::WALKING_UP: act = "UP"; break;
// default: act = "???"; break;
// }
// Assert::isTrue(QMetaObject::invokeMethod(mainController->getInfoWidget(), "showActivity", Qt::QueuedConnection, Q_ARG(const QString&, act)), "call failed");

9
nav/mesh/NavControllerMesh.h
View File

@@ -8,6 +8,7 @@
#include "../sensors/SensorFactory.h"
#include "../sensors/StepSensor.h"
#include "../sensors/TurnSensor.h"
#include "../sensors/ActivitySensor.h"
#include <Indoor/navMesh/NavMeshLocation.h>
#include <Indoor/navMesh/NavMesh.h>
@@ -28,16 +29,16 @@ namespace MeshBased {
private:
NM::NavMesh<NM::NavMeshTriangle>* navMesh;
WiFiModelLogDistCeiling wifiModel;
WiFiModel* wifiModel;
std::unique_ptr<K::ParticleFilter<MyState, MyControl, MyObservation>> pf;
std::unique_ptr<SMC::ParticleFilter<MyState, MyControl, MyObservation>> pf;
MyObservation curObs;
MyControl curCtrl;
public:
NavControllerMesh(Controller* mainController, Floorplan::IndoorMap* im, NM::NavMesh<NM::NavMeshTriangle>* navMesh);
NavControllerMesh(Controller* mainController, Floorplan::IndoorMap* im, NM::NavMesh<NM::NavMeshTriangle>* navMesh, WiFiModel* wifiModel);
void start() override;
@@ -59,7 +60,7 @@ namespace MeshBased {
void onSensorData(Sensor<TurnData>* sensor, const Timestamp ts, const TurnData& data) override;
// void onSensorData(Sensor<ActivityData>* sensor, const Timestamp ts, const ActivityData& data) override ;
void onSensorData(Sensor<ActivityData>* sensor, const Timestamp ts, const ActivityData& data) override ;
private:

28
nav/mesh/State.h
View File

@@ -22,24 +22,26 @@ namespace MeshBased {
;
}
// MyState& operator += (const MyState& o) {
// position += o.position;
// return *this;
// }
MyState& operator += (const MyState& o) {
loc.pos += o.loc.pos;
return *this;
}
// MyState& operator /= (const float val) {
// position /= val;
// return *this;
// }
MyState& operator /= (const float val) {
loc.pos /= val;
return *this;
}
// MyState operator * (const float val) const {
// MyState copy = *this;
// copy.position = copy.position * val;
// return copy;
// }
MyState operator * (const float val) const {
MyState copy = *this;
copy.loc.pos = copy.loc.pos * val;
return copy;
}
};
}
#endif // MESH_STATE_H

20
sensors/ActivitySensor.h
View File

@@ -1,16 +1,16 @@
#ifndef BAROMETERACTIVITYSENSOR_H
#define BAROMETERACTIVITYSENSOR_H
#include <Indoor/sensors/pressure/ActivityButterPressure.h>
#include <Indoor/sensors/activity/ActivityDetector.h>
#include <Indoor/misc/Debug.h>
#include "BarometerSensor.h"
#include "AccelerometerSensor.h"
#include <iostream>
struct ActivityData {
ActivityButterPressure::Activity curActivity;
ActivityData(const ActivityButterPressure::Activity act) : curActivity(act) {;}
ActivityData() : curActivity(ActivityButterPressure::Activity::STAY) {;}
Activity curActivity;
ActivityData(const Activity act) : curActivity(act) {;}
ActivityData() : curActivity(Activity::STANDING) {;}
};
/**
@@ -23,7 +23,7 @@ class ActivitySensor :
private:
ActivityButterPressure act;
ActivityDetector act;
ActivityData data;
BarometerSensor& baro;
@@ -60,16 +60,16 @@ public:
return;
}
this->data.curActivity = act.add(ts, data);
informListeners(ts, this->data);
act.add(ts, data);
this->data.curActivity = act.get();
informListeners(ts, this->data);
}
virtual void onSensorData(Sensor<AccelerometerData>* sensor, const Timestamp ts, const AccelerometerData& data) override {
(void) sensor;
(void) ts;
(void) data;
// TODO!
act.add(ts, data);
}
};

12
sensors/SensorFactory.h
View File

@@ -30,7 +30,7 @@
#include "StepSensor.h"
#include "TurnSensor.h"
//#include "ActivitySensor.h"
#include "ActivitySensor.h"
class SensorFactory {
@@ -90,11 +90,11 @@ public:
return turns;
}
// /** get the Activity sensor */
// ActivitySensor& getActivity() {
// static ActivitySensor activity(getBarometer(), getAccelerometer());
// return activity;
// }
/** get the Activity sensor */
ActivitySensor& getActivity() {
static ActivitySensor activity(getBarometer(), getAccelerometer());
return activity;
}
};

6
ui/map/2D/ColorPoints2D.h
View File

@@ -7,7 +7,7 @@
#include <Indoor/grid/Grid.h>
#include <KLib/math/filter/particles/Particle.h>
#include <Indoor/smc/Particle.h>
#include "../nav/grid/Node.h"
#include "../nav/Observation.h"
@@ -59,13 +59,13 @@ public:
}
/** NOTE: must be called from Qt's main thread! */
template <typename T> void setFromParticles(const std::vector<K::Particle<T>>& particles) {
template <typename T> void setFromParticles(const std::vector<SMC::Particle<T>>& particles) {
points.clear();
// group particles by grid-point
std::unordered_map<GridPoint, float> weights;
for (const K::Particle<T>& p : particles) {
for (const SMC::Particle<T>& p : particles) {
const GridPoint gp = p.state.position;
if (weights.find(gp) != weights.end()) {continue;}
weights[gp] += p.weight;

2
ui/map/2D/HasSelectableNodes.h
View File

@@ -2,7 +2,7 @@
#define HASSELECTABLENODES_H
#include <vector>
#include <KLib/geo/Point2.h>
#include <Indoor/geo/Point2.h>
class HasSelectableNodes {

2
ui/map/2D/MapView2D.cpp
View File

@@ -111,7 +111,7 @@ void MapView2D::setMap(WiFiCalibrationDataModel* mdl, Floorplan::IndoorMap* map)
}
void MapView2D::showParticles(const std::vector<K::Particle<GridBased::MyState>>* particles) {
void MapView2D::showParticles(const std::vector<SMC::Particle<GridBased::MyState>>* particles) {
this->colorPoints->setFromParticles(*particles);
}

6
ui/map/2D/MapView2D.h
View File

@@ -28,7 +28,7 @@ class ColorPoints2D;
class Path2D;
template <typename T> class DijkstraPath;
namespace K {
namespace SMC {
template <typename T> class Particle;
}
class MyState;
@@ -101,11 +101,11 @@ public:
/** NOTE: must be called from Qt's main thread! */
Q_INVOKABLE void showParticles(const void* particles) {
showParticles((const std::vector<K::Particle<GridBased::MyState>>*) particles);
showParticles((const std::vector<SMC::Particle<GridBased::MyState>>*) particles);
}
/** NOTE: must be called from Qt's main thread! */
void showParticles(const std::vector<K::Particle<GridBased::MyState>>* particles);
void showParticles(const std::vector<SMC::Particle<GridBased::MyState>>* particles);

4
ui/map/3D/MapView3D.h
View File

@@ -124,11 +124,11 @@ public:
/** NOTE: must be called from Qt's main thread! */
Q_INVOKABLE void showParticles(const void* particles) {
showParticles((const std::vector<K::Particle<GridBased::MyState>>*) particles);
showParticles((const std::vector<SMC::Particle<GridBased::MyState>>*) particles);
}
/** NOTE: must be called from Qt's main thread! */
void showParticles(const std::vector<K::Particle<GridBased::MyState>>* particles) {
void showParticles(const std::vector<SMC::Particle<GridBased::MyState>>* particles) {
this->colorPoints->setFromParticles(*particles);
}

8
ui/map/3D/elements/ColorPoints.h
View File

@@ -3,7 +3,7 @@
#include <Indoor/floorplan/v2/Floorplan.h>
#include <KLib/math/filter/particles/ParticleFilter.h>
#include <Indoor/smc/filtering/ParticleFilter.h>
#include "../gl/GLHelper.h"
#include "../gl/GLPoints.h"
@@ -62,7 +62,7 @@ public:
}
/** NOTE: must be called from Qt's main thread! */
template <typename T> void setFromParticles(const std::vector<K::Particle<T>>& particles) {
template <typename T> void setFromParticles(const std::vector<SMC::Particle<T>>& particles) {
points.clear();
@@ -71,7 +71,7 @@ public:
// group particles by grid-point
std::unordered_map<GridPoint, float> weights;
for (const K::Particle<T>& p : particles) {
for (const SMC::Particle<T>& p : particles) {
const GridPoint gp = p.state.position;
if (weights.find(gp) != weights.end()) {continue;}
weights[gp] += p.weight;
@@ -97,7 +97,7 @@ public:
}
// for (const K::Particle<T>& p : particles) {
// for (const SMC::Particle<T>& p : particles) {
// const GridPoint gp = p.state.position;
// const QVector3D pt(gp.x_cm/100.0f, gp.z_cm/100.0f + 0.1f, gp.y_cm/100.0f); // swap z and y
// const QColor color = Qt::blue;