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Cleanup: mainly code formatting and made LocationIterator implement autoclosable.

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This commit is contained in:
Dennis Guse
2019-09-07 12:23:56 +02:00
parent 025dee6821
commit 87d92d25f9
104 changed files with 1076 additions and 1526 deletions
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src/main/java/de/dennisguse/opentracks/stats/TripStatisticsUpdater.java
+34 -51
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@@ -27,9 +27,9 @@ import static de.dennisguse.opentracks.services.TrackRecordingService.MAX_NO_MOV
import static de.dennisguse.opentracks.services.TrackRecordingService.PAUSE_LATITUDE;
/**
* Updater for {@link TripStatistics}. For updating track trip statistics as new
* locations are added. Note that some of the locations represent pause/resume
* separator.
* Updater for {@link TripStatistics}.
* For updating track trip statistics as new locations are added.
* NOTE:Some of the locations represent pause/resume separator.
*
* @author Sandor Dornbush
* @author Rodrigo Damazio
@@ -45,28 +45,30 @@ public class TripStatisticsUpdater {
* signal.
*/
@VisibleForTesting
static final int ELEVATION_SMOOTHING_FACTOR = 25;
private static final int ELEVATION_SMOOTHING_FACTOR = 25;
/**
* The number of run readings to smooth for calculating grade.
*/
@VisibleForTesting
static final int RUN_SMOOTHING_FACTOR = 25;
private static final int RUN_SMOOTHING_FACTOR = 25;
/**
* The number of speed reading to smooth to get a somewhat accurate signal.
*/
@VisibleForTesting
static final int SPEED_SMOOTHING_FACTOR = 25;
private static final int SPEED_SMOOTHING_FACTOR = 25;
private static final String TAG = TripStatisticsUpdater.class.getSimpleName();
/**
* Ignore any acceleration faster than this. Will ignore any speeds that imply
* acceleration greater than 2g's 2g = 19.6 m/s^2 = 0.0002 m/ms^2 = 0.02
* m/(m*ms)
* Ignore any acceleration faster than this.
* Will ignore any speeds that imply acceleration greater than 2g's
* 2g = 19.6 m/s^2 = 0.0002 m/ms^2 = 0.02 m/(m*ms)
*/
private static final double MAX_ACCELERATION = 0.02;
// The track's trip statistics
private final TripStatistics tripStatistics;
// A buffer of the recent elevation readings (m)
private final DoubleBuffer elevationBuffer = new DoubleBuffer(ELEVATION_SMOOTHING_FACTOR);
// A buffer of the recent run readings (m) for calculating grade
@@ -75,6 +77,7 @@ public class TripStatisticsUpdater {
private final DoubleBuffer gradeBuffer = new DoubleBuffer(GRADE_SMOOTHING_FACTOR);
// A buffer of the recent speed readings (m/s) for calculating max speed
private final DoubleBuffer speedBuffer = new DoubleBuffer(SPEED_SMOOTHING_FACTOR);
// The current segment's trip statistics
private TripStatistics currentSegment;
// Current segment's last location.
@@ -108,7 +111,8 @@ public class TripStatisticsUpdater {
}
/**
* Adds a location. TODO: This assume location has a valid time.
* Adds a location.
* TODO: This assume location has a valid time.
*
* @param location the location
* @param minRecordingDistance the min recording distance
@@ -119,8 +123,7 @@ public class TripStatisticsUpdater {
if (!LocationUtils.isValidLocation(location)) {
// Either pause or resume marker
if (location.getLatitude() == PAUSE_LATITUDE) {
if (lastLocation != null && lastMovingLocation != null
&& lastLocation != lastMovingLocation) {
if (lastLocation != null && lastMovingLocation != null && lastLocation != lastMovingLocation) {
currentSegment.addTotalDistance(lastMovingLocation.distanceTo(lastLocation));
}
tripStatistics.merge(currentSegment);
@@ -134,11 +137,12 @@ public class TripStatisticsUpdater {
speedBuffer.reset();
return;
}
currentSegment.updateLatitudeExtremities(location.getLatitude());
currentSegment.updateLongitudeExtremities(location.getLongitude());
double elevationDifference = location.hasAltitude() ? updateElevation(location.getAltitude())
: 0.0;
//TODO Use Barometer to compute elevation gain.
double elevationDifference = location.hasAltitude() ? updateElevation(location.getAltitude()) : 0.0;
if (lastLocation == null || lastMovingLocation == null) {
lastLocation = location;
@@ -147,8 +151,7 @@ public class TripStatisticsUpdater {
}
double movingDistance = lastMovingLocation.distanceTo(location);
if (movingDistance < minRecordingDistance
&& (!location.hasSpeed() || location.getSpeed() < MAX_NO_MOVEMENT_SPEED)) {
if (movingDistance < minRecordingDistance && (!location.hasSpeed() || location.getSpeed() < MAX_NO_MOVEMENT_SPEED)) {
speedBuffer.reset();
lastLocation = location;
return;
@@ -171,8 +174,7 @@ public class TripStatisticsUpdater {
// Update max speed
if (location.hasSpeed() && lastLocation.hasSpeed()) {
updateSpeed(
location.getTime(), location.getSpeed(), lastLocation.getTime(), lastLocation.getSpeed());
updateSpeed(location.getTime(), location.getSpeed(), lastLocation.getTime(), lastLocation.getSpeed());
}
lastLocation = location;
@@ -180,9 +182,8 @@ public class TripStatisticsUpdater {
}
/**
* Gets the smoothed elevation over several readings. The elevation readings
* is noisy so the smoothed elevation is better than the raw elevation for
* many tasks.
* Gets the smoothed elevation over several readings.
* The elevation readings is noisy so the smoothed elevation is better than the raw elevation for many tasks.
*/
public double getSmoothedElevation() {
return elevationBuffer.getAverage();
@@ -193,7 +194,7 @@ public class TripStatisticsUpdater {
}
/**
* Updates a speed reading. Assumes the user is moving.
* Updates a speed reading while assuming the user is moving.
*
* @param time the time
* @param speed the speed
@@ -201,7 +202,7 @@ public class TripStatisticsUpdater {
* @param lastLocationSpeed the last location speed
*/
@VisibleForTesting
void updateSpeed(long time, double speed, long lastLocationTime, double lastLocationSpeed) {
private void updateSpeed(long time, double speed, long lastLocationTime, double lastLocationSpeed) {
if (speed < MAX_NO_MOVEMENT_SPEED) {
speedBuffer.reset();
} else if (isValidSpeed(time, speed, lastLocationTime, lastLocationSpeed)) {
@@ -220,7 +221,7 @@ public class TripStatisticsUpdater {
* @param elevation the elevation
*/
@VisibleForTesting
double updateElevation(double elevation) {
private double updateElevation(double elevation) {
// Update elevation using the smoothed average
double oldAverage = elevationBuffer.getAverage();
elevationBuffer.setNext(elevation);
@@ -241,15 +242,12 @@ public class TripStatisticsUpdater {
* @param rise the rise
*/
@VisibleForTesting
void updateGrade(double run, double rise) {
private void updateGrade(double run, double rise) {
runBuffer.setNext(run);
double smoothedRun = runBuffer.getAverage();
/*
* With the error in the altitude measurement it is dangerous to divide by
* anything less than 5.
*/
// With the error in the altitude measurement, it is dangerous to divide by * anything less than 5.
if (smoothedRun < 5.0) {
return;
}
@@ -272,46 +270,31 @@ public class TripStatisticsUpdater {
* @param lastLocationTime the last location time
* @param lastLocationSpeed the last location speed
*/
private boolean isValidSpeed(
long time, double speed, long lastLocationTime, double lastLocationSpeed) {
/*
* There are a lot of noisy speed readings. Do the cheapest checks first,
* most expensive last.
*/
private boolean isValidSpeed(long time, double speed, long lastLocationTime, double lastLocationSpeed) {
// There are a lot of noisy speed readings. Do the cheapest checks first, most expensive last.
if (speed == 0) {
return false;
}
/*
* The following code will ignore unlikely readings. 128 m/s seems to be an
* internal android error code.
*/
// The following code will ignore unlikely readings. 128 m/s seems to be an internal android error code.
if (Math.abs(speed - 128) < 1) {
return false;
}
/*
* See if the speed seems physically likely. Ignore any speeds that imply
* acceleration greater than 2g.
*/
// See if the speed seems physically likely. Ignore any speeds that imply acceleration greater than 2g.
long timeDifference = time - lastLocationTime;
double speedDifference = Math.abs(lastLocationSpeed - speed);
if (speedDifference > MAX_ACCELERATION * timeDifference) {
return false;
}
/*
* Only check if the speed buffer is full. Check that the speed is less than
* 10X the smoothed average and the speed difference doesn't imply 2g
* acceleration.
*/
// Only check if the speed buffer is full. Check that the speed is less than 10X the smoothed average and the speed difference doesn't imply 2g acceleration.
if (speedBuffer.isFull()) {
double average = speedBuffer.getAverage();
double diff = Math.abs(average - speed);
return (speed < average * 10) && (diff < MAX_ACCELERATION * timeDifference);
} else {
return true;
}
return true;
}
}