You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
213 lines
9.2 KiB
213 lines
9.2 KiB
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: $RCSfile: vtkPLY.h,v $
|
|
|
|
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
|
|
All rights reserved.
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notice for more information.
|
|
|
|
=========================================================================*/
|
|
/*
|
|
|
|
The interface routines for reading and writing PLY polygon files.
|
|
|
|
Greg Turk, February 1994
|
|
|
|
---------------------------------------------------------------
|
|
|
|
A PLY file contains a single polygonal _object_.
|
|
|
|
An object is composed of lists of _elements_. Typical elements are
|
|
vertices, faces, edges and materials.
|
|
|
|
Each type of element for a given object has one or more _properties_
|
|
associated with the element type. For instance, a vertex element may
|
|
have as properties the floating-point values x,y,z and the three unsigned
|
|
chars representing red, green and blue.
|
|
|
|
---------------------------------------------------------------
|
|
|
|
Copyright (c) 1994 The Board of Trustees of The Leland Stanford
|
|
Junior University. All rights reserved.
|
|
|
|
Permission to use, copy, modify and distribute this software and its
|
|
documentation for any purpose is hereby granted without fee, provided
|
|
that the above copyright notice and this permission notice appear in
|
|
all copies of this software and that you do not sell the software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
|
|
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
*/
|
|
|
|
// .NAME vtkPLY - a modified version of the PLY 1.1 library
|
|
// .SECTION Description
|
|
// vtkPLY is a modified version of the PLY 1.1 library. The library
|
|
// has been modified by wrapping in a class (to minimize global symbols);
|
|
// to take advantage of functionality generally not available through the
|
|
// PLY library API; and to correct problems with the PLY library.
|
|
//
|
|
// The original distribution was taken from the Stanford University PLY
|
|
// file format release 1.1 (see http://graphics.stanford.edu/data/3Dscanrep/).
|
|
|
|
// .SECTION See Also
|
|
// vtkPLYWriter vtkPLYReader
|
|
|
|
#ifndef __vtkPLY_h
|
|
#define __vtkPLY_h
|
|
|
|
#include "vtkObject.h"
|
|
|
|
#define PLY_ASCII 1 /* ascii PLY file */
|
|
#define PLY_BINARY_BE 2 /* binary PLY file, big endian */
|
|
#define PLY_BINARY_LE 3 /* binary PLY file, little endian */
|
|
|
|
#define PLY_OKAY 0 /* ply routine worked okay */
|
|
#define PLY_ERROR -1 /* error in ply routine */
|
|
|
|
/* scalar data types supported by PLY format */
|
|
|
|
#define PLY_START_TYPE 0
|
|
#define PLY_CHAR 1
|
|
#define PLY_SHORT 2
|
|
#define PLY_INT 3
|
|
#define PLY_UCHAR 4
|
|
#define PLY_USHORT 5
|
|
#define PLY_UINT 6
|
|
#define PLY_FLOAT 7
|
|
#define PLY_DOUBLE 8
|
|
#define PLY_END_TYPE 9
|
|
|
|
#define PLY_SCALAR 0
|
|
#define PLY_LIST 1
|
|
|
|
typedef struct PlyProperty { /* description of a property */
|
|
|
|
const char *name; /* property name */
|
|
int external_type; /* file's data type */
|
|
int internal_type; /* program's data type */
|
|
int offset; /* offset bytes of prop in a struct */
|
|
|
|
int is_list; /* 1 = list, 0 = scalar */
|
|
int count_external; /* file's count type */
|
|
int count_internal; /* program's count type */
|
|
int count_offset; /* offset byte for list count */
|
|
|
|
} PlyProperty;
|
|
|
|
typedef struct PlyElement { /* description of an element */
|
|
char *name; /* element name */
|
|
int num; /* number of elements in this object */
|
|
int size; /* size of element (bytes) or -1 if variable */
|
|
int nprops; /* number of properties for this element */
|
|
PlyProperty **props; /* list of properties in the file */
|
|
char *store_prop; /* flags: property wanted by user? */
|
|
int other_offset; /* offset to un-asked-for props, or -1 if none*/
|
|
int other_size; /* size of other_props structure */
|
|
} PlyElement;
|
|
|
|
typedef struct PlyOtherProp { /* describes other properties in an element */
|
|
char *name; /* element name */
|
|
int size; /* size of other_props */
|
|
int nprops; /* number of properties in other_props */
|
|
PlyProperty **props; /* list of properties in other_props */
|
|
} PlyOtherProp;
|
|
|
|
typedef struct OtherData { /* for storing other_props for an other element */
|
|
void *other_props;
|
|
} OtherData;
|
|
|
|
typedef struct OtherElem { /* data for one "other" element */
|
|
char *elem_name; /* names of other elements */
|
|
int elem_count; /* count of instances of each element */
|
|
OtherData **other_data; /* actual property data for the elements */
|
|
PlyOtherProp *other_props; /* description of the property data */
|
|
} OtherElem;
|
|
|
|
typedef struct PlyOtherElems { /* "other" elements, not interpreted by user */
|
|
int num_elems; /* number of other elements */
|
|
OtherElem *other_list; /* list of data for other elements */
|
|
} PlyOtherElems;
|
|
|
|
typedef struct PlyFile { /* description of PLY file */
|
|
FILE *fp; /* file pointer */
|
|
int file_type; /* ascii or binary */
|
|
float version; /* version number of file */
|
|
int nelems; /* number of elements of object */
|
|
PlyElement **elems; /* list of elements */
|
|
int num_comments; /* number of comments */
|
|
char **comments; /* list of comments */
|
|
int num_obj_info; /* number of items of object information */
|
|
char **obj_info; /* list of object info items */
|
|
PlyElement *which_elem; /* which element we're currently writing */
|
|
PlyOtherElems *other_elems; /* "other" elements from a PLY file */
|
|
} PlyFile;
|
|
|
|
class VTK_IO_EXPORT vtkPLY
|
|
{
|
|
public:
|
|
//standard PLY library interface
|
|
static PlyFile *ply_write(FILE *, int, const char **, int);
|
|
static PlyFile *ply_open_for_writing(char *, int, const char **, int, float *);
|
|
static void ply_describe_element(PlyFile *, const char *, int, int, PlyProperty *);
|
|
static void ply_describe_property(PlyFile *, const char *, PlyProperty *);
|
|
static void ply_element_count(PlyFile *, const char *, int);
|
|
static void ply_header_complete(PlyFile *);
|
|
static void ply_put_element_setup(PlyFile *, const char *);
|
|
static void ply_put_element(PlyFile *, void *);
|
|
static void ply_put_comment(PlyFile *, const char *);
|
|
static void ply_put_obj_info(PlyFile *, const char *);
|
|
static PlyFile *ply_read(FILE *, int *, char ***);
|
|
static PlyFile *ply_open_for_reading( char *, int *, char ***, int *, float *);
|
|
static PlyElement *ply_get_element_description(PlyFile *, char *, int*, int*);
|
|
static void ply_get_element_setup( PlyFile *, char *, int, PlyProperty *);
|
|
static void ply_get_property(PlyFile *, char *, PlyProperty *);
|
|
static PlyOtherProp *ply_get_other_properties(PlyFile *, char *, int);
|
|
static void ply_get_element(PlyFile *, void *);
|
|
static char **ply_get_comments(PlyFile *, int *);
|
|
static char **ply_get_obj_info(PlyFile *, int *);
|
|
static void ply_close(PlyFile *);
|
|
static void ply_get_info(PlyFile *, float *, int *);
|
|
static PlyOtherElems *ply_get_other_element (PlyFile *, char *, int);
|
|
static void ply_describe_other_elements ( PlyFile *, PlyOtherElems *);
|
|
static void ply_put_other_elements (PlyFile *);
|
|
static void ply_free_other_elements (PlyOtherElems *);
|
|
static void ply_describe_other_properties(PlyFile *, PlyOtherProp *, int);
|
|
|
|
// These methods are internal to the PLY library in the normal distribution
|
|
// They should be used carefully
|
|
static int equal_strings(const char *, const char *);
|
|
static PlyElement *find_element(PlyFile *, const char *);
|
|
static PlyProperty *find_property(PlyElement *, const char *, int *);
|
|
static void write_scalar_type (FILE *, int);
|
|
static char **get_words(FILE *, int *, char **);
|
|
static char **old_get_words(FILE *, int *);
|
|
static void write_binary_item(PlyFile *, int, unsigned int, double, int);
|
|
static void write_ascii_item(FILE *, int, unsigned int, double, int);
|
|
static double old_write_ascii_item(FILE *, char *, int);
|
|
static void add_element(PlyFile *, char **, int);
|
|
static void add_property(PlyFile *, char **, int);
|
|
static void add_comment(PlyFile *, char *);
|
|
static void add_obj_info(PlyFile *, char *);
|
|
static void copy_property(PlyProperty *, PlyProperty *);
|
|
static void store_item(char *, int, int, unsigned int, double);
|
|
static void get_stored_item( void *, int, int *, unsigned int *, double *);
|
|
static double get_item_value(char *, int);
|
|
static void get_ascii_item(char *, int, int *, unsigned int *, double *);
|
|
static void get_binary_item(PlyFile *, int, int *, unsigned int *, double *);
|
|
static void ascii_get_element(PlyFile *, char *);
|
|
static void binary_get_element(PlyFile *, char *);
|
|
static char *my_alloc(int, int, const char *);
|
|
static int get_prop_type(char *);
|
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|