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Code Releases Wiki Activity

More improvements of GPX export, optimize nearest closest trackpoint finding a bit

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This commit is contained in:
cpfeiffer 2018-04-13 01:10:45 +02:00
parent 1b9b5f821e
commit 66063256a7
1 changed files with 34 additions and 23 deletions
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51
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/export/GPXExporter.java
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@ -1,6 +1,7 @@
package nodomain.freeyourgadget.gadgetbridge.export;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.Xml;
import org.xmlpull.v1.XmlSerializer;
@ -31,7 +32,7 @@ public class GPXExporter implements ActivityTrackExporter {
private String creator;
private boolean includeHeartRate = true;
private boolean includeHeartRateByTime = true;
private boolean includeHeartRateOfNearestSample = true;
@NonNull
@Override
@ -90,7 +91,7 @@ public class GPXExporter implements ActivityTrackExporter {
String source = getSource(track);
boolean atLeastOnePointExported = false;
for (ActivityPoint point : trackPoints) {
atLeastOnePointExported = exportTrackPoint(ser, point, source, trackPoints) | atLeastOnePointExported ;
atLeastOnePointExported |= exportTrackPoint(ser, point, source, trackPoints);
}
if(!atLeastOnePointExported) {
@ -135,31 +136,20 @@ public class GPXExporter implements ActivityTrackExporter {
int hr = point.getHeartRate();
if (!HeartRateUtils.isValidHeartRateValue(hr)) {
if(!includeHeartRateByTime) { return; }
if (!includeHeartRateOfNearestSample) {
return;
}
Date time = point.getTime();
ActivityPoint closestPointItem = null;
long lowestDifference = Long.MAX_VALUE;
for (ActivityPoint pointItem : trackPoints) {
int hrItem = pointItem.getHeartRate();
if(HeartRateUtils.isValidHeartRateValue(hrItem)) {
Date timeItem = pointItem.getTime();
if (timeItem.after(time) || timeItem.equals(time)) continue;
long difference = time.getTime() - timeItem.getTime();
if (difference < lowestDifference) {
lowestDifference = difference;
closestPointItem = pointItem;
ActivityPoint closestPointItem = findClosestSensibleActivityPoint(point.getTime(), trackPoints);
if(closestPointItem == null) {
return;
}
}
}
if(closestPointItem != null) {
hr = closestPointItem.getHeartRate();
if (!HeartRateUtils.isValidHeartRateValue(hr)) {
return;
}
}
return;
}
ser.startTag(NS_DEFAULT, "extensions");
ser.setPrefix(NS_TRACKPOINT_EXTENSION, NS_TRACKPOINT_EXTENSION_URI);
@ -169,6 +159,27 @@ public class GPXExporter implements ActivityTrackExporter {
ser.endTag(NS_DEFAULT, "extensions");
}
private @Nullable ActivityPoint findClosestSensibleActivityPoint(Date time, List<ActivityPoint> trackPoints) {
ActivityPoint closestPointItem = null;
long lowestDifference = 60 * 2 * 1000; // minimum distance is 2min
for (ActivityPoint pointItem : trackPoints) {
int hrItem = pointItem.getHeartRate();
if (HeartRateUtils.isValidHeartRateValue(hrItem)) {
Date timeItem = pointItem.getTime();
if (timeItem.after(time) || timeItem.equals(time)) {
break; // we assume that the given trackPoints are sorted in time ascending order (oldest first)
}
long difference = time.getTime() - timeItem.getTime();
if (difference < lowestDifference) {
lowestDifference = difference;
closestPointItem = pointItem;
}
}
}
return closestPointItem;
}
private String formatLocation(double value) {
return new BigDecimal(value).setScale(GPSCoordinate.GPS_DECIMAL_DEGREES_SCALE, RoundingMode.HALF_UP).toPlainString();
}