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Allow to navigate from outside the map.
- Simple compass-direction-navigation while outside. - Full navigation starts when entering map. Enter correct lat lon for fromCurrentLocation.
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80
PocketMaps/app/src/main/java/com/junjunguo/pocketmaps/util/TargetDirComputer.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package com.junjunguo.pocketmaps.util; | ||
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| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Locale; | ||
| import java.util.Map; | ||
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| import com.graphhopper.GHResponse; | ||
| import com.graphhopper.PathWrapper; | ||
| import com.graphhopper.util.Instruction; | ||
| import com.graphhopper.util.InstructionAnnotation; | ||
| import com.graphhopper.util.InstructionList; | ||
| import com.graphhopper.util.PointList; | ||
| import com.graphhopper.util.Translation; | ||
| import com.junjunguo.pocketmaps.map.Tracking; | ||
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|
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| import android.util.Log; | ||
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| public class TargetDirComputer | ||
| { | ||
| private static TargetDirComputer instance = new TargetDirComputer(); | ||
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| public static TargetDirComputer getInstance() | ||
| { | ||
| return instance; | ||
| } | ||
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| public GHResponse createTargetdirResponse(double fromLat, double fromLon, double toLat, double toLon) | ||
| { | ||
| GHResponse resp = new GHResponse(); | ||
| PathWrapper pr = new PathWrapper(); | ||
| PointList pl = new PointList(); | ||
| pl.add(fromLat, fromLon); | ||
| pl.add(toLat, toLon); | ||
| pr.setPoints(pl); | ||
| double distance = GeoMath.fastDistance(fromLat, fromLon, toLat, toLon); | ||
| distance = distance * GeoMath.METER_PER_DEGREE; | ||
| pr.setDistance(distance); | ||
| double distKm = distance / 1000.0; | ||
| double hours = distKm / 50; // 50km == 1h | ||
| if (Variable.getVariable().getTravelMode() == Variable.TravelMode.Bike) { hours = hours * 3.0; } | ||
| if (Variable.getVariable().getTravelMode() == Variable.TravelMode.Foot) { hours = hours * 9.0; } | ||
| long timeMs = (long)(hours * 60.0 * 60.0 * 1000.0); | ||
| pr.setTime(timeMs); | ||
| InstructionList insL = new InstructionList(createEmptyTranslator()); | ||
| int sign = Instruction.CONTINUE_ON_STREET; | ||
| String name = "direction to target"; | ||
| InstructionAnnotation ia = InstructionAnnotation.EMPTY; | ||
| Instruction ins = new Instruction(sign, name, ia, pl); | ||
| ins.setDistance(distance); | ||
| ins.setTime(timeMs); | ||
| insL.add(ins); | ||
| pr.setInstructions(insL); | ||
| resp.add(pr); | ||
| return resp; | ||
| } | ||
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| private Translation createEmptyTranslator() | ||
| { | ||
| Translation t = new Translation() | ||
| { | ||
| @Override public String tr(String key, Object... params) | ||
| { | ||
| StringBuilder sb = new StringBuilder(key); | ||
| for (Object o : params) { sb.append(" ").append(o.toString()); } | ||
| return sb.toString(); | ||
| } | ||
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| @Override public Map<String, String> asMap() | ||
| { | ||
| return new HashMap<String, String>(); | ||
| } | ||
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| @Override public Locale getLocale() { return Locale.ENGLISH; } | ||
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| @Override public String getLanguage() { return Locale.ENGLISH.getLanguage(); } | ||
| }; | ||
| return t; | ||
| } | ||
| } |
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