Package elki.datasource.parser

Class SimplePolygonParser

java.lang.Object

elki.datasource.parser.AbstractStreamingParser

elki.datasource.parser.SimplePolygonParser

All Implemented Interfaces:

elki.datasource.bundle.BundleStreamSource, Parser, StreamingParser

public class SimplePolygonParser
extends AbstractStreamingParser

Parser to load polygon data (2D and 3D only) from a simple format. One record per line, points separated by whitespace, numbers separated by commas. Multiple polygons components can be separated using --.

Unparseable parts will be treated as labels.

Since:

0.4.0

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SimplePolygonParser.Par	Parameterization class.

Nested classes/interfaces inherited from interface elki.datasource.bundle.BundleStreamSource

elki.datasource.bundle.BundleStreamSource.Event

Field Summary

Fields

Modifier and Type	Field	Description
static java.util.regex.Pattern	COORD	Pattern to catch coordinates
private java.util.List<double[]>	coords	(Reused) storage of coordinates.
protected elki.data.ExternalID	cureid	Current external id.
protected elki.data.LabelList	curlbl	Current labels.
protected elki.data.spatial.PolygonsObject	curpoly	Current polygon.
protected boolean	haslabels	Whether or not the data set has labels.
private java.util.ArrayList<java.lang.String>	labels	(Reused) store for labels.
private static elki.logging.Logging	LOG	Class logger
protected elki.datasource.bundle.BundleMeta	meta	Metadata.
(package private) elki.datasource.bundle.BundleStreamSource.Event	nextevent	Event to report next.
static java.lang.String	POLYGON_SEPARATOR	Polygon separator
private java.util.List<elki.data.spatial.Polygon>	polys	(Reused) storage of polygons.

Fields inherited from class elki.datasource.parser.AbstractStreamingParser

reader, tokenizer

Constructor Summary

Constructors

Constructor	Description
SimplePolygonParser(CSVReaderFormat format)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected void	buildMeta()	Update the meta element.
java.lang.Object	data(int rnum)
protected elki.logging.Logging	getLogger()	Get the logger for this class.
elki.datasource.bundle.BundleMeta	getMeta()
elki.datasource.bundle.BundleStreamSource.Event	nextEvent()
private boolean	parseLine()	Parse a single line.

Methods inherited from class elki.datasource.parser.AbstractStreamingParser

asMultipleObjectsBundle, assignDBID, cleanup, hasDBIDs, initStream, parse

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final elki.logging.Logging LOG

Class logger

COORD

public static final java.util.regex.Pattern COORD

Pattern to catch coordinates

POLYGON_SEPARATOR

public static final java.lang.String POLYGON_SEPARATOR

Polygon separator

See Also:

Constant Field Values

nextevent

elki.datasource.bundle.BundleStreamSource.Event nextevent

Event to report next.

meta

protected elki.datasource.bundle.BundleMeta meta

Metadata.

haslabels

protected boolean haslabels

Whether or not the data set has labels.

curpoly

protected elki.data.spatial.PolygonsObject curpoly

Current polygon.

curlbl

protected elki.data.LabelList curlbl

Current labels.

cureid

protected elki.data.ExternalID cureid

Current external id.

coords

private final java.util.List<double[]> coords

(Reused) storage of coordinates.

polys

private final java.util.List<elki.data.spatial.Polygon> polys

(Reused) storage of polygons.

labels

private final java.util.ArrayList<java.lang.String> labels

(Reused) store for labels.

Constructor Detail

SimplePolygonParser

public SimplePolygonParser(CSVReaderFormat format)

Constructor.

Parameters:

format - Input format

Method Detail

nextEvent

public elki.datasource.bundle.BundleStreamSource.Event nextEvent()

buildMeta

protected void buildMeta()

Update the meta element.

getMeta

public elki.datasource.bundle.BundleMeta getMeta()

data

public java.lang.Object data(int rnum)

parseLine

private boolean parseLine()

Parse a single line.

Returns:

true if the line was read successful.

getLogger

protected elki.logging.Logging getLogger()

Description copied from class: AbstractStreamingParser

Get the logger for this class.

Specified by:

getLogger in class AbstractStreamingParser

Returns:

Logger.