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require 5 sec confirmation time before announcing "U-turn when possible" to avoid false positives

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sonora 2012-03-07 00:14:07 +01:00
parent d55fce74ea
commit 9edf90b02b
1 changed files with 9 additions and 7 deletions
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16
OsmAnd/src/net/osmand/plus/routing/RoutingHelper.java
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@ -71,6 +71,7 @@ public class RoutingHelper {
public static boolean makeUturnWhenPossible = false;
public static boolean suppressTurnPrompt = false;
public static int turnImminent = 0;
private long makeUTwpDetected = 0;
public static boolean makeUturnWhenPossible() {
return makeUturnWhenPossible;
@ -382,18 +383,19 @@ public class RoutingHelper {
// 7. Check necessity for unscheduled U-turn, Issue 863
if (Math.abs(bearing - bearingRoute) > 135f && 360 - Math.abs(bearing - bearingRoute) > 135f) {
float d = currentLocation.distanceTo(routeNodes.get(currentRoute));
// tolerance 60m or 6sec. Time tolerance to avoid false positives after route recalculation in motion
if (currentLocation.hasSpeed()) {
if ((d > 60) && (d > (currentLocation.getSpeed() * 6f))) {
// 60m tolerance to allow for GPS inaccuracy
if (d > 60) {
if (makeUTwpDetected == 0) {
makeUTwpDetected = System.currentTimeMillis();
// require 5 sec since first detection, to avoid false positive announcements
} else if ((System.currentTimeMillis() - makeUTwpDetected > 5000)) {
makeUturnWhenPossible = true;
turnImminent = 1;
//log.info("Bearing is opposite to bearingRoute"); //$NON-NLS-1$
}
} else if (d > 60) {
makeUturnWhenPossible = true;
turnImminent = 1;
//log.info("Bearing is opposite to bearingRoute"); //$NON-NLS-1$
}
} else {
makeUTwpDetected = 0;
}
}
}