IFileHeader Class Reference

Inheritance diagram for IFileHeader:

Public Member Functions
virtual long long	getPointCount () const =0
virtual long long	getLineCount () const =0
virtual long long	getLinePointCount () const =0
virtual long long	getPolygonCount () const =0
virtual long long	getPolygonPointCount () const =0
virtual BoxHandle	getBoundingBox () const =0
	get the bounding box of the data set
virtual void	getPrecision (double &precX, double &precY, double &precZ) const =0
virtual int	getDim () const =0
	The highest dimensionality of contained geometries (e.g. 0 for points)
virtual const char *	getCRS () const =0
	Get coordinate reference system as WKT string (can be empty)
virtual CoordRefSys	getCRSType () const =0
	Get coordinate reference system type (enum if stored internally or a separate ".prj" file)
virtual AddInfoLayoutHandle	getDataLayout () const =0
	Get the attribute layout of the data that will be returned by the import object. More...
virtual uint32_t	getAttributeCount () const =0
	if the file format contains attribute information, the number of attribute can be accessed here
virtual const IFileAttribute &	getAttribute (uint32_t idx) const =0
	get the attribute object ( 0 <= idx < getAttributeCount() )
virtual bool	getProperty (const char *name, unsigned &value) const =0
virtual bool	getProperty (const char *name, long long &value) const =0
virtual bool	getProperty (const char *name, double &value) const =0
virtual bool	getProperty (const char *name, const char *&value) const =0
virtual bool	getProperty (const char *name, unsigned arrayCount, double *value) const =0
Public Member Functions inherited from ObjectBase
virtual void	Delete ()

Member Function Documentation

getDataLayout()

virtual AddInfoLayoutHandle getDataLayout ( ) const

pure virtual

Get the attribute layout of the data that will be returned by the import object.

The returned layout is merged from the provided layout during import object creation and the actual import attribute layout. For import classes that provide configurable attribute import, the layout can only be access AFTER prepareForReading was called, since there the actual data layout is typcially constructed.

getPrecision()

virtual void getPrecision ( double &  precX, double &  precY, double &  precZ  ) const

pure virtual

The 'epsilon' of coordinates (e.g. coordinates with mm-precision: 0.001) Relevant only for ASCII files.