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[STAD-728] Add docu #75

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Merged
hb0 merged 1 commit into from
Dec 8, 2025
Merged

[STAD-728] Add docu #75

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3 changes: 3 additions & 0 deletions libs/serializer/src/main/java/de/cyface/serializer/LocationOffsetter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,9 @@ public LocationOffsetter() {
* The first number "seen" is used as offset and returned as absolute number. Subsequent numbers are returned in the
* diff-format, i.e. as the relative difference to the previous number passed.
*
* TODO: When we support nullable elevations, we need to ensure we implement it the same as communicated in STAD-827.
* - 100, 101, null, 200, 201, null, null → 100, +1, null, 200, +1, null, null
*
* @param location the data point to be converted.
* @return the data point in the offset-format
*/
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2 changes: 2 additions & 0 deletions libs/serializer/src/main/java/de/cyface/serializer/LocationSerializer.java
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Expand Up @@ -51,6 +51,8 @@ public static de.cyface.protos.model.LocationRecords locations(final List<RawRec
l.getLongitude(), l.getSpeed(), l.getAccuracy());
final Formatter.Location offsets = offsetter.offset(formatted);

// TODO: When we support nullable elevations, we need to ensure we implement it the same as communicated in STAD-827.
// - 100, 101, null, 200, 201, null, null → 100, +1, null, 200, +1, null, null
builder.addTimestamp(offsets.getTimestamp())
.addLatitude(offsets.getLatitude())
.addLongitude(offsets.getLongitude())
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3 changes: 3 additions & 0 deletions libs/serializer/src/main/java/de/cyface/serializer/Offsetter.java
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Expand Up @@ -43,6 +43,9 @@ public class Offsetter {
* The first number "seen" is used as offset and returned as absolute number. Subsequent numbers are returned in the
* diff-format, i.e. as the relative difference to the previous number passed.
*
* TODO: When we support nullable elevations, we need to ensure we implement it the same as communicated in STAD-827.
* - 100, 101, null, 200, 201, null, null → 100, +1, null, 200, +1, null, null
*
* @param absoluteNumber the number to be returned in the diff-format
* @return the difference to the previous number or the absolute number for the first number.
*/
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