haberman.rhizomatics.map

Class PolyFactory

java.lang.Object

haberman.rhizomatics.map.PolyFactory

public class PolyFactory
extends java.lang.Object

This class contains static method to compute parametric polygons' coordinates.

Constructor Summary

Constructors

Constructor and Description
PolyFactory()

Method Summary

Modifier and Type	Method and Description
private static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng>	cycle(com.mapbox.mapboxsdk.geometry.LatLng center, double radius, int sides, double starting_angle) Return an array of LatLng describing a geographic cycle of Earth.
static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng>	decode_cyclic(org.json.JSONObject cyclic_json, float factor)
static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng>	decode_polygon(org.json.JSONArray poly_json) Returns an array of LatLng describing a polygon from its json-encoded representation.
static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng>	decode_shape(org.json.JSONObject shape) Translates the JSON fragment of a shape to an array of LatLng.

Methods inherited from class java.lang.Object

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

Constructor Detail

PolyFactory

public PolyFactory()

Method Detail

decode_shape

@NonNull
public static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng> decode_shape(org.json.JSONObject shape)
                                                                                       throws org.json.JSONException

Translates the JSON fragment of a shape to an array of LatLng.

Parameters:

shape - The shape could be either "cyclic" or "polygon"

Returns:

A list of LatLng.

Throws:

org.json.JSONException - from either the decode_polygon(JSONArray) or decode_cyclic(JSONObject, float) method.

decode_polygon

@Nullable
public static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng> decode_polygon(org.json.JSONArray poly_json)

Returns an array of LatLng describing a polygon from its json-encoded representation.

Parameters:

poly_json - The JSONArray to decode

Returns:

A list of LatLng or null if the JSONArray wasn't decoded.

decode_cyclic

@Nullable
public static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng> decode_cyclic(org.json.JSONObject cyclic_json,
                                                                                                float factor)

cycle

@NonNull
private static java.util.ArrayList<com.mapbox.mapboxsdk.geometry.LatLng> cycle(com.mapbox.mapboxsdk.geometry.LatLng center,
                                                                                        double radius,
                                                                                        int sides,
                                                                                        double starting_angle)

Return an array of LatLng describing a geographic cycle of Earth.

Parameters:

center - Center of the cycle

radius - Radius of the cycle in meters

sides - Amount of points used to compute the cycle points, eg: resolution

starting_angle - The angle_to of the first point, others will be added from this angle_to in clockwise increment.

Returns:

A polygon of CW points.