Module org.elasticsearch.geo

Package org.elasticsearch.geometry.utils

Class CircleUtils

java.lang.Object

org.elasticsearch.geometry.utils.CircleUtils

public class CircleUtils
extends Object

Utility class for storing different helpful re-usable spatial functions

Method Summary

Modifier and Type	Method	Description
static int	circleToPolygonNumSides(double radiusMeters, double errorDistance)
static Polygon	createRegularGeoShapePolygon(Circle circle, int gons)	Makes an n-gon, centered at the provided circle's center, and each vertex approximately Circle.getRadiusMeters() away from the center.
static Polygon	createRegularShapePolygon(Circle circle, int gons)	Makes an n-gon, centered at the provided circle's center.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

createRegularGeoShapePolygon

public static Polygon createRegularGeoShapePolygon(Circle circle,
 int gons)

Makes an n-gon, centered at the provided circle's center, and each vertex approximately Circle.getRadiusMeters() away from the center. It throws an IllegalArgumentException if the circle contains a pole. This does not split the polygon across the date-line. Relies on org.elasticsearch.index.mapper.GeoShapeIndexer to split prepare polygon for indexing. Adapted from from org.apache.lucene.tests.geo.GeoTestUtil

createRegularShapePolygon

public static Polygon createRegularShapePolygon(Circle circle,
 int gons)

Makes an n-gon, centered at the provided circle's center. This assumes distance measured in cartesian geometry.

circleToPolygonNumSides

public static int circleToPolygonNumSides(double radiusMeters,
 double errorDistance)