ITrafo Class Reference

Interface for generic geometry object coordinate transformation. More...

#include "Transformation.hpp"

Inheritance diagram for ITrafo:

Public Member Functions
virtual int	trafoDim () const =0
	returns the dimension of transformation. This info helps to optimize the actual transformation process of the geometry objects More...
virtual bool	usedChunkedTrafo () const =0
	returns flag if the chunked transform function should be use the chunked transformation may results in high performance
virtual void	transform (double &x, double &y, double &z, bool inv=false) const =0
	performs single point coordinate transformation (mandatory interface) please note that coordinates must not be changed if not effected by the transformation More...
virtual void	transform (size_t count, double *x, double *y, double *z, bool inv=false) const =0
	performs chunked coordinate transformation (optional interface) please note that coordinates must not be changed if not effected by the transformation More...
Public Member Functions inherited from ObjectBase
virtual void	Delete ()

Static Public Member Functions
static ITrafo *	New (const char *sourceCRS, const char *targetCRS, LogFn logFn=0)
static ITrafo *	New (const char *sourceCRS, const char *targetCRS, const char *dbPath, LogFn logFn=0)

Detailed Description

Interface for generic geometry object coordinate transformation.

Member Function Documentation

trafoDim()

virtual int trafoDim ( ) const

pure virtual

returns the dimension of transformation. This info helps to optimize the actual transformation process of the geometry objects

Returns

1 if only z values are changed

2 for 2d transformations

3 if all coordinate values may be changed

transform() [1/2]

virtual void transform ( double &  x, double &  y, double &  z, bool  inv = false  ) const

pure virtual

performs single point coordinate transformation (mandatory interface) please note that coordinates must not be changed if not effected by the transformation

Parameters

[in,out]	x	x-coordinate
[in,out]	y	y-coordinate
[in,out]	z	z-coordinate
[in]	inv	inversion flag if transformation should be inverted

transform() [2/2]

virtual void transform ( size_t  count, double *  x, double *  y, double *  z, bool  inv = false  ) const

pure virtual

performs chunked coordinate transformation (optional interface) please note that coordinates must not be changed if not effected by the transformation

Parameters

[in]	count	number of points
[in,out]	x	x-coordinate array
[in,out]	y	y-coordinate array
[in,out]	z	z-coordinate array
[in]	inv	inversion flag if transformation should be inverted