vdataloader.c File Reference

Handle the loading of data-files. More...

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "rendermodes.h"

Defines
#define	MAXXSIZ
#define	MAXYSIZ
#define	MAXZSIZ
#define	MAXVOXELS
Functions
void	my_vox_hack (void)
	Postprocess .vox-files.
	loadVOX (char *filename)
	Load .vox-files.
void	extract_data (unsigned char *raw)
	Decompress .kvx-files.
unsigned char *	my_loadkvx (const char *filename)
	Load .kvx-files.
void	loadKVX (char *arg)
	Load .kvx-files Wrapper-function.
void	loadDAT (char *filename)
	Load .dat-files.
void	calculate_gradients (void)
	Calculate the gradients by "central-differences".
void	smooth_data (uint32_t *in, uint32_t mask, uint32_t shift)
	Smooth data.
void	create_mipmap (void)
	Create "3D-mipmap".
void	apply_cut_plane (float *plane_equ)
	Cut object with plane.
void	apply_cut_sphere (float *sphere_equ, int inside_outside_flag)
	Cut object with sphere.
Variables
unsigned char *	voxdat
long *	xoffset
short *	xyoffset
uint32_t *	voxel
int	vol_loaded
int	alloced_voxdat
float	cc [3]
long	xpivot
long	ypivot
long	zpivot
uint32_t	xsiz
uint32_t	ysiz
uint32_t	zsiz
unsigned char *	rawslabdata

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Detailed Description

Handle the loading of data-files.

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Function Documentation

void apply_cut_plane (  float *  plane_equ  )

Cut object with plane. Parameters: plane_equ  Pointer to the parameters of the cut-plane's equation.

void apply_cut_sphere (  float *  sphere_equ, int  inside_outside_flag )

Cut object with sphere. Parameters: sphere_equ  Pointer to the parameters of the cut-plane's equation. inside_outside_flag  Flag which indicates, if in- or outside of sphere is to be cut away from the voxel-object.

void calculate_gradients (  void   )

Calculate the gradients by "central-differences". Approximate normalvector for each voxel/cell by local gradient.

void create_mipmap (  void   )

Create "3D-mipmap". Create low-level mipmap for empty space skipping.

void extract_data (  unsigned char *  raw  )

Decompress .kvx-files. Parameters: raw  Compressed data.

void loadDAT (  char *  filename  )

Load .dat-files. Load the "native"-VisLU data-files. Parameters: filename  File to load.

void loadKVX (  char *  arg  )

Load .kvx-files Wrapper-function. KVX-fileformat invented by Ken Silverman http://www.advsys.net/ken Calls extract_data() on the actual load-procedure my_loadkvx() Parameters: arg  File to load.

loadVOX (  char *  filename  )

Load .vox-files. VOX-fileformat invented by Ken Silverman http://www.advsys.net/ken Parameters: filename  File to load.

unsigned char* my_loadkvx (  const char *  filename  )

Load .kvx-files. KVX-fileformat invented by Ken Silverman http://www.advsys.net/ken Parameters: filename  File to load.

void smooth_data (  uint32_t *  in, uint32_t  mask, uint32_t  shift )

Smooth data. Parameters: in  Pointer to voxel-data. mask  Mask to control which part of the data is to be affected by smoothing. shift  Bit-shift to control which part of the data is to be affected by smoothing.

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