org.locationtech.jts.io.kml

Class KMLWriter

java.lang.Object

org.locationtech.jts.io.kml.KMLWriter

public class KMLWriter
extends Object

Writes a formatted string containing the KML representation of a JTS Geometry. The output is KML fragments which can be substituted wherever the KML Geometry abstract element can be used.

Output elements are indented to provide a nicely-formatted representation. An output line prefix and maximum number of coordinates per line can be specified.

The Z ordinate value output can be forced to be a specific value. The extrude and altitudeMode modes can be set. If set, the corresponding sub-elements will be output.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALTITUDE_MODE_ABSOLUTE The KML standard value absolute for use in setAltitudeMode(String).
static String	ALTITUDE_MODE_CLAMPTOGROUND The KML standard value clampToGround for use in setAltitudeMode(String).
static String	ALTITUDE_MODE_RELATIVETOGROUND The KML standard value relativeToGround for use in setAltitudeMode(String).

Constructor Summary

Constructors

Constructor and Description
KMLWriter() Creates a new writer.

Method Summary

Modifier and Type	Method and Description
void	setAltitudeMode(String altitudeMode) Sets the value output in the altitudeMode element.
void	setExtrude(boolean extrude) Sets the flag to be output in the extrude element.
void	setLinePrefix(String linePrefix) Sets a tag string which is prefixed to every emitted text line.
void	setMaximumCoordinatesPerLine(int maxCoordinatesPerLine) Sets the maximum number of coordinates to output per line.
void	setPrecision(int precision) Sets the maximum number of decimal places to output in ordinate values.
void	setTesselate(boolean tesselate) Sets the flag to be output in the tesselate element.
void	setZ(double zVal) Sets the Z value to be output for all coordinates.
String	write(Geometry geom) Writes a Geometry in KML format as a string.
void	write(Geometry geometry, StringBuffer buf) Appends the KML representation of a Geometry to a StringBuffer.
void	write(Geometry geometry, Writer writer) Writes the KML representation of a Geometry to a Writer.
static String	writeGeometry(Geometry geometry, double z) Writes a Geometry as KML to a string, using a specified Z value.
static String	writeGeometry(Geometry geometry, double z, int precision, boolean extrude, String altitudeMode) Writes a Geometry as KML to a string, using a specified Z value, precision, extrude flag, and altitude mode code.

Methods inherited from class java.lang.Object

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

Field Detail

ALTITUDE_MODE_CLAMPTOGROUND

public static String ALTITUDE_MODE_CLAMPTOGROUND

The KML standard value clampToGround for use in setAltitudeMode(String).

ALTITUDE_MODE_RELATIVETOGROUND

public static String ALTITUDE_MODE_RELATIVETOGROUND

The KML standard value relativeToGround for use in setAltitudeMode(String).

ALTITUDE_MODE_ABSOLUTE

public static String ALTITUDE_MODE_ABSOLUTE

The KML standard value absolute for use in setAltitudeMode(String).

Constructor Detail

KMLWriter

public KMLWriter()

Creates a new writer.

Method Detail

writeGeometry

public static String writeGeometry(Geometry geometry,
                                   double z)

Writes a Geometry as KML to a string, using a specified Z value.

Parameters:

geometry - the geometry to write

z - the Z value to use

Returns:

a string containing the KML geometry representation

writeGeometry

public static String writeGeometry(Geometry geometry,
                                   double z,
                                   int precision,
                                   boolean extrude,
                                   String altitudeMode)

Writes a Geometry as KML to a string, using a specified Z value, precision, extrude flag, and altitude mode code.

Parameters:

geometry - the geometry to write

z - the Z value to use

precision - the maximum number of decimal places to write

extrude - the extrude flag to write

altitudeMode - the altitude model code to write

Returns:

a string containing the KML geometry representation

setLinePrefix

public void setLinePrefix(String linePrefix)

Sets a tag string which is prefixed to every emitted text line. This can be used to indent the geometry text in a containing document.

Parameters:

linePrefix - the tag string

setMaximumCoordinatesPerLine

public void setMaximumCoordinatesPerLine(int maxCoordinatesPerLine)

Sets the maximum number of coordinates to output per line.

Parameters:

maxCoordinatesPerLine - the maximum number of coordinates to output

setZ

public void setZ(double zVal)

Sets the Z value to be output for all coordinates. This overrides any Z value present in the Geometry coordinates.

Parameters:

zVal - the Z value to output

setExtrude

public void setExtrude(boolean extrude)

Sets the flag to be output in the extrude element.

Parameters:

extrude - the extrude flag to output

setTesselate

public void setTesselate(boolean tesselate)

Sets the flag to be output in the tesselate element.

Parameters:

tesselate - the tesselate flag to output

setAltitudeMode

public void setAltitudeMode(String altitudeMode)

Sets the value output in the altitudeMode element.

Parameters:

altitudeMode - string representing the altitude mode

setPrecision

public void setPrecision(int precision)

Sets the maximum number of decimal places to output in ordinate values. Useful for limiting output size.

Parameters:

precision - the number of decimal places to output

write

public String write(Geometry geom)

Writes a Geometry in KML format as a string.

Parameters:

geom - the geometry to write

Returns:

a string containing the KML geometry representation

write

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

Writes the KML representation of a Geometry to a Writer.

Parameters:

geometry - the geometry to write

writer - the Writer to write to

Throws:

IOException - if an I/O error occurred

write

public void write(Geometry geometry,
                  StringBuffer buf)

Appends the KML representation of a Geometry to a StringBuffer.

Parameters:

geometry - the geometry to write

buf - the buffer to write into