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fixed one off-by-one problem in tail construction, but that didn't fix the artifacts that appear,

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particularly when moving back in time
This commit is contained in:
Axel Uhl committed 2012-02-29 20:56:50 +01:00
1 parent ebf4214609
commit c2c91a52fa
1 file changed
+8 -5
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java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/adminconsole/RaceMap.java
+8 -5
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@@ -708,7 +708,7 @@ public class RaceMap extends SimplePanel implements TimeListener, CompetitorSele
for (Iterator<GPSFixDTO> fixIter = fixesForCompetitor.iterator(); fixIter.hasNext() && indexOfLast == -1;) {
GPSFixDTO fix = fixIter.next();
if (!fix.timepoint.before(to)) {
indexOfLast = i;
indexOfLast = i-1;
} else {
LatLng point = null;
if (indexOfFirst == -1) {
@@ -918,11 +918,13 @@ public class RaceMap extends SimplePanel implements TimeListener, CompetitorSele
* When this method returns, {@link #firstShownFix} and {@link #lastShownFix} have been updated accordingly.
*/
protected void updateTail(Polyline tail, CompetitorDTO competitorDTO, Date from, Date to) {
int vertexCount = tail.getVertexCount();
final List<GPSFixDTO> fixesForCompetitor = fixes.get(competitorDTO);
int indexOfFirstShownFix = firstShownFix.get(competitorDTO) == null ? -1 : firstShownFix.get(competitorDTO);
while (indexOfFirstShownFix != -1 && tail.getVertexCount() > 0
while (indexOfFirstShownFix != -1 && vertexCount > 0
&& fixesForCompetitor.get(indexOfFirstShownFix).timepoint.before(from)) {
tail.deleteVertex(0);
vertexCount--;
indexOfFirstShownFix++;
}
// now the polyline contains no more vertices representing fixes before "from";
@@ -932,12 +934,13 @@ public class RaceMap extends SimplePanel implements TimeListener, CompetitorSele
indexOfFirstShownFix--;
GPSFixDTO fix = fixesForCompetitor.get(indexOfFirstShownFix);
tail.insertVertex(0, LatLng.newInstance(fix.position.latDeg, fix.position.lngDeg));
vertexCount++;
}
// now adjust the polylines tail: remove excess vertices that are after "to"
int indexOfLastShownFix = lastShownFix.get(competitorDTO) == null ? -1 : lastShownFix.get(competitorDTO);
while (indexOfLastShownFix != -1 && tail.getVertexCount() > 0
while (indexOfLastShownFix != -1 && vertexCount > 0
&& fixesForCompetitor.get(indexOfLastShownFix).timepoint.after(to)) {
tail.deleteVertex(tail.getVertexCount() - 1);
tail.deleteVertex(--vertexCount);
indexOfLastShownFix--;
}
// now the polyline contains no more vertices representing fixes after "to";
@@ -947,7 +950,7 @@ public class RaceMap extends SimplePanel implements TimeListener, CompetitorSele
&& !fixesForCompetitor.get(indexOfLastShownFix + 1).timepoint.after(to)) {
indexOfLastShownFix++;
GPSFixDTO fix = fixesForCompetitor.get(indexOfLastShownFix);
tail.insertVertex(tail.getVertexCount(), LatLng.newInstance(fix.position.latDeg, fix.position.lngDeg));
tail.insertVertex(vertexCount++, LatLng.newInstance(fix.position.latDeg, fix.position.lngDeg));
}
firstShownFix.put(competitorDTO, indexOfFirstShownFix);
lastShownFix.put(competitorDTO, indexOfLastShownFix);