SoInput - used to read Inventor data files

SoInput

#include <Inventor/SoInput.h> Methods from class SoInput: c } c } SoInput()

c } c } ~SoInput()

c } c } addDirectoryFirst(const char *dirName)

c } c } addDirectoryLast(const char *dirName)

c } c } addEnvDirectoriesFirst(const char *envVarName)

c } c } addEnvDirectoriesLast(const char *envVarName)

c } c } removeDirectory(const char *dirName)

c } c } clearDirectories()

c } c } getDirectories()

c } c } setFilePointer(FILE *newFP)

c } c } openFile(const char *fileName, SbBool okIfNotFound = FALSE)

c } c } pushFile(const char *fileName)

c } c } closeFile()

c } c } isValidFile()

c } c } getCurFile() const

c } c } getCurFileName() const

c } c } setBuffer(void *bufPointer, size_t bufSize)

c } c } getHeader()

c } c } getIVVersion()

This class is used by the SoDB reading routines when reading Inventor data files. It supports both ASCII (default) and binary Inventor formats. Users can also register additional valid file headers. When reading, SoInput skips over Inventor comments (from '#' to end of line) and can stack input files. When EOF is reached, the stack is popped. This class can also be used to read from a buffer in memory.

c } c } SoInput()

c } c } ~SoInput()

Constructor and destructor. The default SoInput reads from stdin. The destructor closes any files opened by the SoInput. c } c } addDirectoryFirst(const char *dirName)

c } c } addDirectoryLast(const char *dirName)

c } c } addEnvDirectoriesFirst(const char *envVarName)

c } c } addEnvDirectoriesLast(const char *envVarName)

The SoInput class maintains a global list of directories that is searched to find files when opening them. Directories are searched in order. Each of these routines adds directories to the list, either at the beginning ("First") or the end ("Last"). The last two routines add directories named in the value of the given environment variable. Directories may be separated by colons or whitespace in the variable's value. c } c } removeDirectory(const char *dirName)

Removes named directory from the list. c } c } clearDirectories()

Clears the list of directories (including the current directory). c } c } getDirectories()

Returns the list of directories as an SbStringList. c } c } setFilePointer(FILE *newFP)

Sets file pointer to read from. Clears the stack of input files if necessary. c } c } openFile(const char *fileName, SbBool okIfNotFound = FALSE)

Opens named file, sets file pointer to result. Clears the stack of input files if necessary. This returns FALSE on error; if okIfNotFound is FALSE (the default), this prints an error message if the file could not be found. c } c } pushFile(const char *fileName)

Opens named file, pushing the resulting file pointer onto the stack. Returns FALSE on error. c } c } closeFile()

Closes all files on stack opened with openFile() or pushFile(). c } c } isValidFile()

Returns TRUE if the currently open file is a valid Inventor file; that is, it begins with a valid Inventor header, or one that has been registered with SoDB::registerHeader. c } c } getCurFile() const

Returns a pointer to the current file, or NULL if reading from a buffer. c } c } getCurFileName() const

Returns full name (including directory path) of current file, or NULL if reading from a buffer. c } c } setBuffer(void *bufPointer, size_t bufSize)

Sets an in-memory buffer to read from, along with its size. c } c } getHeader()

Returns the header of the file being read. c } c } getIVVersion()

Returns the Inventor file version of the file being read (e.g. 2.1). If the file has a header registered through SoDB::registerHeader(), the returned version is the Inventor version registered with the header.

SoDB, SoOutput, SoTranReceiver