Package org.locationtech.spatial4j.io

Class PolyshapeWriter

java.lang.Object

org.locationtech.spatial4j.io.PolyshapeWriter

All Implemented Interfaces:

ShapeIO, ShapeWriter

Direct Known Subclasses:

JtsPolyshapeWriter

public class PolyshapeWriter
extends Object
implements ShapeWriter

Wrap the 'Encoded Polyline Algorithm Format' defined in: Google Maps API with flags to encode various Shapes: Point, Line, Polygon, etc For more details, see FORMATS.md This format works well for geographic shapes (-180...+180 / -90...+90), but is not appropriate for other coordinate systems

See Also:

• Google Maps API
• PolyshapeReader

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PolyshapeWriter.Encoder	Encodes a sequence of LatLngs into an encoded path string.

Field Summary

Fields

Modifier and Type	Field	Description
static final char	KEY_ARG_END
static final char	KEY_ARG_START
static final char	KEY_BOX
static final char	KEY_CIRCLE
static final char	KEY_LINE
static final char	KEY_MULTIPOINT
static final char	KEY_POINT
static final char	KEY_POLYGON
static final char	KEY_SEPERATOR

Fields inherited from interface org.locationtech.spatial4j.io.ShapeIO

GeoJSON, LEGACY, POLY, WKT

Constructor Summary

Constructors

Constructor	Description
PolyshapeWriter(SpatialContext ctx, SpatialContextFactory factory)

Method Summary

Modifier and Type	Method	Description
String	getFormatName()
String	toString(Shape shape)	Write a shape to String
void	write(Writer output, Shape shape)	Write a shape to the output writer
void	write(PolyshapeWriter.Encoder enc, Shape shape)

Methods inherited from class java.lang.Object

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

Field Details

KEY_POINT

public static final char KEY_POINT

See Also:

• Constant Field Values

KEY_LINE

public static final char KEY_LINE

See Also:

• Constant Field Values

KEY_POLYGON

public static final char KEY_POLYGON

See Also:

• Constant Field Values

KEY_MULTIPOINT

public static final char KEY_MULTIPOINT

See Also:

• Constant Field Values

KEY_CIRCLE

public static final char KEY_CIRCLE

See Also:

• Constant Field Values

KEY_BOX

public static final char KEY_BOX

See Also:

• Constant Field Values

KEY_ARG_START

public static final char KEY_ARG_START

See Also:

• Constant Field Values

KEY_ARG_END

public static final char KEY_ARG_END

See Also:

• Constant Field Values

KEY_SEPERATOR

public static final char KEY_SEPERATOR

See Also:

• Constant Field Values

Constructor Details

PolyshapeWriter

public PolyshapeWriter(SpatialContext ctx,
 SpatialContextFactory factory)

Method Details

getFormatName

public String getFormatName()

Specified by:

getFormatName in interface ShapeIO

Returns:

the format name

write

public void write(Writer output,
 Shape shape)
           throws IOException

Description copied from interface: ShapeWriter

Write a shape to the output writer

Specified by:

write in interface ShapeWriter

Throws:

IOException

write

public void write(PolyshapeWriter.Encoder enc,
 Shape shape)
           throws IOException

Throws:

IOException

toString

public String toString(Shape shape)

Description copied from interface: ShapeWriter

Write a shape to String

Specified by:

toString in interface ShapeWriter