TDK: WMSGetFeatureInfo Class Reference

WMSGetFeatureInfo::WMSGetFeatureInfo ( TdkConDescriptor & descriptor )

Constructor. Constructs a WMSGetFeatureInfo object.

Parameters:

Information

of what DBMS to use and how to connect to it.

WMSGetFeatureInfo::~WMSGetFeatureInfo ( )

Destructor. Destroys a WMSGetFeatureInfo object.

std::string WMSGetFeatureInfo::getFeatureInfo	(	std::vector< long > &	themeIds,
		double	x,
		double	y,
		int	width,
		int	height,
		double	xmin,
		double	ymin,
		double	xmax,
		double	ymax,
		int	featureCount
	)

Generates a XML string that contains information about the desired themes' features. Generates a XML string that contains the information about the themes' features, whose theme id's are listed in the themeIds vector and whose features are located at the area defined by {(x,y),(width,height)} and bounded by a box defined by {(xmin,ymin),(xmax,ymax)}.

Parameters:

	Vector	filled with the desired theme id's.
	x	coordinate that defines the features area's origin.
	y	coordinate that defines the features area's origin.
	width	of the features area.
	height	of the features area.
	x	coordinate of the lower corner of the bounding box.
	y	coordinate of the lower corner of the bounding box.
	x	coordiante of the higher corner of the bounding box.
	y	coordiante of the higher corner of the bounding box.
	The	number of features to return at most. [if a value of zero is used (0), all the found features are returned.]

Returns:: A XML string of the themes' features (attributes of the themes' objects).

NodoXML * WMSGetFeatureInfo::createObject	(	std::string	attr,
		std::string	v
	)			`[private]`

Creates a XML node object of an attribute name and value pair.

Parameters:

	Attribute	name.
	Attribute	value.

Returns:: A XML node of the attribute name and value pair.

NodoXML * WMSGetFeatureInfo::getThemeFeatureInfo	(	TdkView *	view,
		TdkTheme *	theme,
		double	xmin,
		double	ymin,
		double	xmax,
		double	ymax,
		int	featureCount
	)			`[private]`

Builds a XML object with the information about the objects of a single theme.

Parameters:

	The	view instance that contains the theme.
	The	theme whose features information will be gathered.
	x	coordinate of the lower corner of the bounding box.
	y	coordinate of the lower corner of the bounding box.
	x	coordiante of the higher corner of the bounding box.
	y	coordiante of the higher corner of the bounding box.
	The	number of features to return at most. [if a value of zero is used (0), all the found features are returned.]

Returns:: XML node with the information about the features of the theme.

std::string WMSGetFeatureInfo::generateQuery	(	TdkTheme *	theme,
		TdkThemeObjects *	thObjs
	)			`[private]`

Generate to obtain the theme's objects' features information from the database.

Parameters:

	Theme	that contains the desired objects.
	Collection	of objects from the theme.

Returns:: SQL query to retrieve the objects feature information from the database.

TdkConDescriptor& WMSGetFeatureInfo::_descriptor [private]

Database connection information. Contains all the necessary data to create a connection to the TDK database.


Public Member Functions
	WMSGetFeatureInfo (TdkConDescriptor &descriptor)
	~WMSGetFeatureInfo ()
std::string	getFeatureInfo (std::vector< long > &themeIds, double x, double y, int width, int height, double xmin, double ymin, double xmax, double ymax, int featureCount)
Private Member Functions
NodoXML *	createObject (std::string attr, std::string v)
NodoXML *	getThemeFeatureInfo (TdkView view, TdkTheme theme, double xmin, double ymin, double xmax, double ymax, int featureCount)
std::string	generateQuery (TdkTheme theme, TdkThemeObjects thObjs)
Private Attributes
TdkConDescriptor &	_descriptor

WMSGetFeatureInfo Class Reference

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation