vtFeatureLoader Class Reference

Public Member Functions
virtual vtFeatureSet *	LoadFrom (const char *filename)
vtFeatureSet *	LoadFromSHP (const char *filename, bool progress_callback(int)=NULL)
vtFeatureSet *	LoadHeaderFromSHP (const char *filename)
vtFeatureSet *	LoadWithOGR (const char *filename, bool progress_callback(int)=NULL)
vtFeatureSet *	LoadWithOGR (OGRLayer *pLayer, bool progress_callback(int)=NULL)
vtFeatureSet *	LoadFromIGC (const char *filename)
vtFeatureSet *	LoadFromDXF (const char *filename, bool progress_callback(int)=NULL)
vtFeatureSet *	ReadFeaturesFromWFS (const char *szServerURL, const char *layername)

Public Attributes
vtString	m_strErrorMsg

Member Function Documentation

vtFeatureSet * vtFeatureLoader::LoadFrom ( const char *  filename )

virtual

Load a featureset from a file. It may be SHP, IGC, or DXF format.

Parameters

filename

Filename in UTF-8 encoding.

Returns

a new vtFeatureSet if successful, otherwise NULL;

vtFeatureSet * vtFeatureLoader::LoadFromDXF	(	const char *	filename,
		bool	progress_callbackint = NULL
	)

Load a featureset from a SHP (ESRI Shapefile).

Parameters

filename	Filename in UTF-8 encoding.
progress_callback	Provide a callback function if you want to receive progress indication.

Returns

a new vtFeatureSet if successful, otherwise NULL.

vtFeatureSet * vtFeatureLoader::LoadFromIGC

(

const char *

filename

)

Load a featureset from an IGC file.

Parameters

filename

Filename in UTF-8 encoding.

Returns

a new vtFeatureSet if successful, otherwise NULL.

vtFeatureSet * vtFeatureLoader::LoadFromSHP	(	const char *	filename,
		bool	progress_callbackint = NULL
	)

Load a featureset from a SHP (ESRI Shapefile).

Parameters

filename	Filename in UTF-8 encoding.
progress_callback	Provide if you want a callback on progress.

Returns

a new vtFeatureSet if successful, otherwise NULL.

vtFeatureSet * vtFeatureLoader::LoadWithOGR	(	const char *	filename,
		bool	progress_callbackint = NULL
	)

Load a featureset from a file using the OGR library. It can be in any file format that OGR supports.

Parameters

filename	Filename in UTF-8 encoding.
progress_callback	Provide a callback function if you want to receive progress indication.

Returns

a new vtFeatureSet if successful, otherwise NULL.