private SimpleMatchList generateMatches(SimpleMatchSettings settings) {
JosmTaskMonitor monitor = new JosmTaskMonitor();
monitor.beginTask("Generating matches");
// create Features and collections from primitive selections
Set<OsmPrimitive> allPrimitives = new HashSet<>();
allPrimitives.addAll(settings.getReferenceSelection());
allPrimitives.addAll(settings.getSubjectSelection());
FeatureCollection allFeatures = createFeatureCollection(allPrimitives);
FeatureCollection refColl = new FeatureDataset(allFeatures.getFeatureSchema());
FeatureCollection subColl = new FeatureDataset(allFeatures.getFeatureSchema());
for (Feature f : allFeatures.getFeatures()) {
OsmFeature osmFeature = (OsmFeature) f;
if (settings.getReferenceSelection().contains(osmFeature.getPrimitive()))
refColl.add(osmFeature);
if (settings.getSubjectSelection().contains(osmFeature.getPrimitive()))
subColl.add(osmFeature);
}
// TODO: pass to MatchFinderPanel to use as hint/default for DistanceMatchers
// get maximum possible distance so scores can be scaled (FIXME: not quite accurate)
// Envelope envelope = refColl.getEnvelope();
// envelope.expandToInclude(subColl.getEnvelope());
// double maxDistance = Point2D.distance(
// envelope.getMinX(),
// envelope.getMinY(),
// envelope.getMaxX(),
// envelope.getMaxY());
// build matcher
FCMatchFinder finder = settings.getMatchFinder();
// FIXME: ignore/filter duplicate objects (i.e. same object in both sets)
// FIXME: fix match functions to work on point/linestring features as well
// find matches
Map<Feature, Matches> map = finder.match(refColl, subColl, monitor);
monitor.subTask("Finishing match list");
// convert to simple one-to-one match
SimpleMatchList list = new SimpleMatchList();
for (Map.Entry<Feature, Matches> entry : map.entrySet()) {
OsmFeature target = (OsmFeature) entry.getKey();
OsmFeature subject = (OsmFeature) entry.getValue().getTopMatch();
if (target != null && subject != null)
list.add(
new SimpleMatch(
target.getPrimitive(), subject.getPrimitive(), entry.getValue().getTopScore()));
}
monitor.finishTask();
monitor.close();
return list;
}
