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authorAnton Tananaev <anton.tananaev@gmail.com>2016-11-27 22:58:35 +1300
committerGitHub <noreply@github.com>2016-11-27 22:58:35 +1300
commit58db487ece3ac8644557145a07a75ce4bf63a344 (patch)
tree29f18d871486df89c202e32a82fe143acc3754f7 /src/org/traccar/geofence/GeofencePolygon.java
parentf1b58491f6dc2a50312efb19f501d2121ed06b08 (diff)
parentf933147c0cba53df96448a64a2ba58dda4da1659 (diff)
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Merge pull request #2608 from Abyss777/polyline_geofence
Implemented polyline geofence
Diffstat (limited to 'src/org/traccar/geofence/GeofencePolygon.java')
-rw-r--r--src/org/traccar/geofence/GeofencePolygon.java73
1 files changed, 32 insertions, 41 deletions
diff --git a/src/org/traccar/geofence/GeofencePolygon.java b/src/org/traccar/geofence/GeofencePolygon.java
index 03638d6c9..2048ba26d 100644
--- a/src/org/traccar/geofence/GeofencePolygon.java
+++ b/src/org/traccar/geofence/GeofencePolygon.java
@@ -27,44 +27,18 @@ public class GeofencePolygon extends GeofenceGeometry {
fromWkt(wkt);
}
- private static class Coordinate {
-
- public static final double DEGREE360 = 360;
-
- private double lat;
- private double lon;
-
- public double getLat() {
- return lat;
- }
-
- public void setLat(double lat) {
- this.lat = lat;
- }
-
- public double getLon() {
- return lon;
- }
-
- // Need not to confuse algorithm by the abrupt reset of longitude
- public double getLon360() {
- return lon + DEGREE360;
- }
-
- public void setLon(double lon) {
- this.lon = lon;
- }
- }
-
private ArrayList<Coordinate> coordinates;
private double[] constant;
private double[] multiple;
+ private boolean needNormalize = false;
+
private void precalc() {
if (coordinates == null) {
return;
}
+
int polyCorners = coordinates.size();
int i;
int j = polyCorners - 1;
@@ -79,38 +53,55 @@ public class GeofencePolygon extends GeofenceGeometry {
constant = new double[polyCorners];
multiple = new double[polyCorners];
+ boolean hasNegative = false;
+ boolean hasPositive = false;
+ for (i = 0; i < polyCorners; i++) {
+ if (coordinates.get(i).getLon() > 90) {
+ hasPositive = true;
+ } else if (coordinates.get(i).getLon() < -90) {
+ hasNegative = true;
+ }
+ }
+ needNormalize = hasPositive && hasNegative;
for (i = 0; i < polyCorners; j = i++) {
- if (coordinates.get(j).getLon360() == coordinates.get(i).getLon360()) {
+ if (normalizeLon(coordinates.get(j).getLon()) == normalizeLon(coordinates.get(i).getLon())) {
constant[i] = coordinates.get(i).getLat();
multiple[i] = 0;
} else {
constant[i] = coordinates.get(i).getLat()
- - (coordinates.get(i).getLon360() * coordinates.get(j).getLat())
- / (coordinates.get(j).getLon360() - coordinates.get(i).getLon360())
- + (coordinates.get(i).getLon360() * coordinates.get(i).getLat())
- / (coordinates.get(j).getLon360() - coordinates.get(i).getLon360());
+ - (normalizeLon(coordinates.get(i).getLon()) * coordinates.get(j).getLat())
+ / (normalizeLon(coordinates.get(j).getLon()) - normalizeLon(coordinates.get(i).getLon()))
+ + (normalizeLon(coordinates.get(i).getLon()) * coordinates.get(i).getLat())
+ / (normalizeLon(coordinates.get(j).getLon()) - normalizeLon(coordinates.get(i).getLon()));
multiple[i] = (coordinates.get(j).getLat() - coordinates.get(i).getLat())
- / (coordinates.get(j).getLon360() - coordinates.get(i).getLon360());
+ / (normalizeLon(coordinates.get(j).getLon()) - normalizeLon(coordinates.get(i).getLon()));
}
}
}
+ private double normalizeLon(double lon) {
+ if (needNormalize && lon < -90) {
+ return lon + 360;
+ }
+ return lon;
+ }
+
@Override
public boolean containsPoint(double latitude, double longitude) {
int polyCorners = coordinates.size();
int i;
int j = polyCorners - 1;
- double longitude360 = longitude + Coordinate.DEGREE360;
+ double longitudeNorm = normalizeLon(longitude);
boolean oddNodes = false;
for (i = 0; i < polyCorners; j = i++) {
- if (coordinates.get(i).getLon360() < longitude360
- && coordinates.get(j).getLon360() >= longitude360
- || coordinates.get(j).getLon360() < longitude360
- && coordinates.get(i).getLon360() >= longitude360) {
- oddNodes ^= longitude360 * multiple[i] + constant[i] < latitude;
+ if (normalizeLon(coordinates.get(i).getLon()) < longitudeNorm
+ && normalizeLon(coordinates.get(j).getLon()) >= longitudeNorm
+ || normalizeLon(coordinates.get(j).getLon()) < longitudeNorm
+ && normalizeLon(coordinates.get(i).getLon()) >= longitudeNorm) {
+ oddNodes ^= longitudeNorm * multiple[i] + constant[i] < latitude;
}
}
return oddNodes;