ccNormalCompressor Class Reference

Normal compressor. More...

#include <ccNormalCompressor.h>

Static Public Member Functions
static unsigned	Compress (const PointCoordinateType N[3])
	Compression algorithm. More...
static void	Decompress (unsigned index, PointCoordinateType N[3], unsigned char level=QUANTIZE_LEVEL)
	Decompression algorithm. More...
static void	InvertNormal (CompressedNormType &code)
	Inverts a (compressed) normal.

Static Public Attributes
static const unsigned char	QUANTIZE_LEVEL = 9
	Compressed normals quantization level (number of directions: 2^(2*N+3)) More...
static const unsigned	MAX_VALID_NORM_CODE = (1 << (QUANTIZE_LEVEL * 2 + 3)) - 1
	Last valid normal code.
static const unsigned	NULL_NORM_CODE = MAX_VALID_NORM_CODE + 1
	Null normal code.

Detailed Description

Normal compressor.

Member Function Documentation

Compress()

unsigned ccNormalCompressor::Compress ( const PointCoordinateType  N[3] )

static

Compression algorithm.

compute in which sector lie the elements

scale the sectored vector - early return for null vector

compute the box

then for each required level, quantize...

Decompress()

void ccNormalCompressor::Decompress ( unsigned  index, PointCoordinateType  N[3], unsigned char  level = QUANTIZE_LEVEL  )

static

Decompression algorithm.

special case for the null code

recompute the box in the sector...

Member Data Documentation

QUANTIZE_LEVEL

const unsigned char ccNormalCompressor::QUANTIZE_LEVEL = 9

static

Compressed normals quantization level (number of directions: 2^(2*N+3))

Warning

Never pass a 'constant initializer' by reference

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

• ccNormalCompressor.h
• ccNormalCompressor.cpp