com.ontimize.util.gis.extension.google
Class GoogleTilesDataProvider

java.lang.Object
  com.ontimize.util.gis.extension.google.GoogleTilesDataProvider

All Implemented Interfaces:

IDataProvider

public class GoogleTilesDataProvider
extends java.lang.Object
implements IDataProvider

Scales: 0.00000268221;0.000005364418;0.000010759;0.000021518;0.000043036;0.000086072;0.0001712144;0.000344288;0.000688576;0.0013177152;0.00274658203125;0.0054931640625;0.010986328125;0.02197265625;0.0439453125;0.087890625;0.17578125;0.3515625;0.703125;1.40625

Field Summary

protected boolean	DEBUG
protected static java.awt.image.BufferedImage	image
protected int	image_format
protected static java.awt.image.BufferedImage	image2
(package private) java.util.Vector<java.lang.String>	lastRequestedTiles
static double[]	LEVELS_VECTOR
static double[]	PIXELS_PER_LON_DEG
protected java.lang.StringBuilder	sqlBuilder
protected static java.lang.String	THE_STRING
protected int	tsyNumber
protected static com.vividsolutions.jts.geom.Envelope	worldExtension

Constructor Summary

GoogleTilesDataProvider()

GoogleTilesDataProvider(java.util.Hashtable parameters)

Method Summary

protected java.awt.image.BufferedImage	createBuffer(int width, int height)
static int	getZoomLevel(double pixelSize)
void	initProvider(java.util.Hashtable<java.lang.String,java.lang.Object> parameters)
java.lang.Object	query(java.lang.Object keysValues, java.lang.Object attributes, int sessionId) This method must implement a standard query operation returning the set of data that matches the conditions specified by the keysValues parameter.

Methods inherited from class java.lang.Object

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

Field Detail

THE_STRING

protected static final java.lang.String THE_STRING

See Also:

Constant Field Values

worldExtension

protected static com.vividsolutions.jts.geom.Envelope worldExtension

PIXELS_PER_LON_DEG

public static final double[] PIXELS_PER_LON_DEG

LEVELS_VECTOR

public static final double[] LEVELS_VECTOR

tsyNumber

protected int tsyNumber

image_format

protected int image_format

lastRequestedTiles

java.util.Vector<java.lang.String> lastRequestedTiles

sqlBuilder

protected final java.lang.StringBuilder sqlBuilder

DEBUG

protected boolean DEBUG

image

protected static java.awt.image.BufferedImage image

image2

protected static java.awt.image.BufferedImage image2

Constructor Detail

GoogleTilesDataProvider

public GoogleTilesDataProvider()

GoogleTilesDataProvider

public GoogleTilesDataProvider(java.util.Hashtable parameters)

Method Detail

query

public java.lang.Object query(java.lang.Object keysValues,
                              java.lang.Object attributes,
                              int sessionId)
                       throws java.lang.Exception

Description copied from interface: IDataProvider

This method must implement a standard query operation returning the set of data that matches the conditions specified by the keysValues parameter. The attributes defines which attributes (or columns if data is obtained from a database) must be recovered, and keysValues specifies which set of records must be recovered.

Specified by:

query in interface IDataProvider

Parameters:

keysValues - Identifiers for the data

attributes - Data attributes to query

sessionId - Session Id for this user

Returns:

Requested data

Throws:

java.lang.Exception

createBuffer

protected java.awt.image.BufferedImage createBuffer(int width,
                                                    int height)

initProvider

public void initProvider(java.util.Hashtable<java.lang.String,java.lang.Object> parameters)

Specified by:

initProvider in interface IDataProvider

getZoomLevel

public static int getZoomLevel(double pixelSize)