Package org.locationtech.jts.io.geojson

Class GeoJsonWriter

java.lang.Object

org.locationtech.jts.io.geojson.GeoJsonWriter

public class GeoJsonWriter
extends java.lang.Object

Writes Geometrys as JSON fragments in GeoJson format.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	EPSG_PREFIX
private boolean	isEncodeCRS
private double	scale

Constructor Summary

Constructors

Constructor	Description
GeoJsonWriter()	Constructs a GeoJsonWriter instance.
GeoJsonWriter(int decimals)	Constructs a GeoJsonWriter instance specifying the number of decimals to use when encoding floating point numbers.

Method Summary

Modifier and Type	Method	Description
private java.util.Map<java.lang.String,java.lang.Object>	create(Geometry geometry, boolean encodeCRS)
private java.util.Map<java.lang.String,java.lang.Object>	createCRS(int srid)
private java.lang.String	formatOrdinate(double x)
private java.lang.String	getJsonString(CoordinateSequence coordinateSequence)
private java.util.List<java.lang.Object>	makeJsonAware(GeometryCollection geometryCollection)
private java.util.List<org.json.simple.JSONAware>	makeJsonAware(Polygon poly)
void	setEncodeCRS(boolean isEncodeCRS)
java.lang.String	write(Geometry geometry)	Writes a Geometry in GeoJson format to a String.
void	write(Geometry geometry, java.io.Writer writer)	Writes a Geometry in GeoJson format into a Writer.

Methods inherited from class java.lang.Object

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

Field Detail

EPSG_PREFIX

public static final java.lang.String EPSG_PREFIX

See Also:

Constant Field Values

scale

private double scale

isEncodeCRS

private boolean isEncodeCRS

Constructor Detail

GeoJsonWriter

public GeoJsonWriter()

Constructs a GeoJsonWriter instance.

GeoJsonWriter

public GeoJsonWriter(int decimals)

Constructs a GeoJsonWriter instance specifying the number of decimals to use when encoding floating point numbers.

Method Detail

setEncodeCRS

public void setEncodeCRS(boolean isEncodeCRS)

write

public java.lang.String write(Geometry geometry)

Writes a Geometry in GeoJson format to a String.

Parameters:

geometry -

Returns:

String GeoJson Encoded Geometry

write

public void write(Geometry geometry,
                  java.io.Writer writer)
           throws java.io.IOException

Writes a Geometry in GeoJson format into a Writer.

Parameters:

geometry - Geometry to encode

writer - Stream to encode to.

Throws:

java.io.IOException - throws an IOException when unable to write the JSON string

create

private java.util.Map<java.lang.String,java.lang.Object> create(Geometry geometry,
                                                                      boolean encodeCRS)

createCRS

private java.util.Map<java.lang.String,java.lang.Object> createCRS(int srid)

makeJsonAware

private java.util.List<org.json.simple.JSONAware> makeJsonAware(Polygon poly)

makeJsonAware

private java.util.List<java.lang.Object> makeJsonAware(GeometryCollection geometryCollection)

getJsonString

private java.lang.String getJsonString(CoordinateSequence coordinateSequence)

formatOrdinate

private java.lang.String formatOrdinate(double x)