eclipse-sailing-analytics/sailing-analytics
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reduced QuadTree contract as far as possible

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Change-Id: I06c64d0a0f4ef13db50d3cb3098605871f8ae457
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Axel Uhl committed 2015-12-23 13:34:08 +01:00
1 parent 80a14625b3
commit 2350f62344
2 files changed
+4 -10
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java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/test/QuadTreeTest.java
+2 -8
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@@ -1237,19 +1237,13 @@ public class QuadTreeTest {
assertSame(getNearestByApproximateDistance(p3), p3Nearest);
}
private double approximateDistance(Position p1, Position p2) {
double dLat = p2.getLatDeg() - p1.getLatDeg();
double dLon = p2.getLngDeg() - p1.getLngDeg();
return Math.sqrt(dLat*dLat + dLon*dLon);
}
private Position getNearestByApproximateDistance(Position pos) {
double minDistance = Double.MAX_VALUE;
Position nearestByDistance = null;
for (final Position p : quadtree.get(new BoundsImpl(new DegreePosition(-90, -180), new DegreePosition(90, 180)))) { // get all
if (approximateDistance(p, pos) < minDistance) {
if (QuadTree.getLatLngDistance(p, pos) < minDistance) {
nearestByDistance = p;
minDistance = approximateDistance(p, pos);
minDistance = QuadTree.getLatLngDistance(p, pos);
}
}
return nearestByDistance;