sfcIndex Class Reference

Implementation of space-filling curve. More...

#include <sfcIndex.h>

Inheritance diagram for sfcIndex:

List of all members.

Public Member Functions
sfcIndex const &	operator= (sfcIndex const &other)
	Overload various operators for sfcIndex.
int	sfcGetDigit (const int level) const
	Return the sfcIndexUnit (sfcdigitw bits) corresponding to level "level" of the sfc.
void	sfcSetDigit (const int level, const int digit)
	Sets the sfcIndexUnit (sfcdigitw bits) corresponding to level "level" of the sfc using "digit.
void	sfcUnsetDigit (const int level)
	Resets the sfcIndexUnit (sfcdigitw bits) corresponding to level "level" of the sfc.
void	sfcMaxDigit (const int level)
	Set to all 1's the sfcIndexUnit (sfcdigitw bits) corresponding to level "level" of the sfc.
void	sfcSwapDigitWd (const int level, const int pos1, const int pos2)
	Swaps sfcbasew bits at positions pos1 and pos2 in the sfcIndexUnit corresponding to level "level".
void	sfcToggleDigitWd (const int level, const int pos)
	Toggles sfcbasew bits at pos in the sfcIndexUnit corresponding to level "level".
int	sfcGetIndex () const
	Returns the (int) integer value of the index.
int	sfcGetIndex (const int lev) const
	Returns the (int) integer value of the index at level lev; i.e.
int	sfcGetIndex (const int lev, const int nlev) const
	Returns the (int) integer value of the index from level lev-nlev+1 to level lev.
void	sfcSetIndex (const int index)
	Sets the (int) integer value of the sfcIndex to "index".
void	sfcSetIndex (const int index, const int lev)
	Sets the (int) integer value of the sfcIndex at level lev (i.e.
void	sfcSetIndex (const int index, const int lev, const int nlev)
	Sets the (int) integer value of the sfcIndex from lev to lev+nlev-1 to "index".
void	sfcCreateLocNum (const int *coords)
	Create location numbers from given coordinates.
void	sfcGetCoords (int *coords) const
	Returns an array of coordinates from the locations number.
void	sfcGetDigitArray (int *digits) const
	Returns the sfcdigitw bits corresponding to each sfcIndexUnit as an array of int.
int	sfcGetBaseW (void) const
	Query interface.

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Detailed Description

Implementation of space-filling curve.

Class sfcIndex defines an index generated by the chosen SFC mapping i.e. specified space dimensions, base used and mapping function. sfcIndex is an ordering vector of sfcIndexUnits; each sfcIndexUnits defined as Dim Base-b digts, and defining the index at each level of the sfc. The most-significant sfcIndexUnits corresponds to level 1 Class sfcIndex is derived from BitVec.

Author:

Manish Parashar

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Member Function Documentation

int sfcIndex::sfcGetDigit

(

const int

level

)

const

Return the sfcIndexUnit (sfcdigitw bits) corresponding to level "level" of the sfc.

Remember that the most-significant sfcIndexUnit corresponds to level 1.

int sfcIndex::sfcGetIndex

(

const int

lev

)

const

Returns the (int) integer value of the index at level lev; i.e.

only the first lev digits of the sfcIndex.

void sfcIndex::sfcSetIndex	(	const int	index,
		const int	lev
	)

Sets the (int) integer value of the sfcIndex at level lev (i.e.

MSB lev*sfcdigitw bits) to "index".

void sfcIndex::sfcSwapDigitWd	(	const int	level,
		const int	pos1,
		const int	pos2
	)

Swaps sfcbasew bits at positions pos1 and pos2 in the sfcIndexUnit corresponding to level "level".

sfcIndexUnit bits are numbered from 0 with the MSB being 0.

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The documentation for this class was generated from the following files:

• sfcIndex.h
• sfcIndex.C

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