The library contains some useful utils for encoding Polylines for Google Maps, checking point into the circle, etc.
The code is working according to the real Globe form - Geoid (https://en.wikipedia.org/wiki/Geoid) not a sphere!
For sample usage, see PolylineTest.java:
public void testApp()
{
final int numberOfPoints = 8; // Octagon
// CENTER = Riga, Peldu iela
final int radiusInMeters = 50;
final double latitude = 56.946345;
final double longitude = 24.108515;
final List < LatLng > latLngs = PolyUtil.prepareCircleFromRadius(new LatLng(latitude, longitude), radiusInMeters, numberOfPoints);
final String encode = PolyUtil.encode(latLngs);
System.out.println("Encoded Polyline for Google Map = "+encode);
String staticMapImageUrl = "https://maps.googleapis.com/maps/api/staticmap?size=400x400¢er=%s,%s&zoom=16&path=fillcolor:0x00000033|color:0xFF0000|enc:%s";
System.out.println("URL of static image = "+String.format(staticMapImageUrl, latitude, longitude, encode));
// Contains location test:
// "Is LatLng(56.946412, 24.108729) inside the circle?"
assertTrue(PolyUtil.containsLocation(new LatLng(56.946412, 24.108729), latLngs, true)); // Should be TRUE
// "Is LatLng(56.94693, 24.108316) inside the circle?"
assertFalse(PolyUtil.containsLocation(new LatLng(56.94693, 24.108316), latLngs, true)); // Should be FALSE
}Commands:
Build JAR: mvn clean package
Hot to use your new library:
Newly created library may be used directly, placed into maven repository, if needed, or used from GitHub like this:
- Add jitpack.io repository to your POM file:
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>- Add dependency to POM:
<dependency>
<groupId>com.github.divlv</groupId> <!-- Your GitHub login (divlv) -->
<artifactId>gmappolyline</artifactId> <!-- Your GitHub repo name (of library) -->
<version>1.0</version> <!-- GitHub lib release version -->
</dependency>- Enjoy!
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