OpenMesh::IO::_OFFReader_ Class Reference

Implementation of the OFF format reader. More...

`#include <OpenMesh/Core/IO/reader/OFFReader.hh>`

Inheritance diagram for OpenMesh::IO::_OFFReader_:
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Collaboration diagram for OpenMesh::IO::_OFFReader_:
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## Public Member Functions

virtual | ~_OFFReader_ ()
| Destructor.
std::string | get_description () const
| Returns a brief description of the file type that can be parsed.
std::string | get_extensions () const
| Returns a string with the accepted file extensions separated by a whitespace and in small caps.
std::string | get_magic () const
| Return magic bits used to determine file format.
bool | read (const std::string &_filename, BaseImporter &_bi, Options &_opt)
| Reads a mesh given by a filename. More...
bool | can_u_read (const std::string &_filename) const
| Returns true if writer can parse _filename (checks extension). More...
bool | read (std::istream &_in, BaseImporter &_bi, Options &_opt)
| Reads a mesh given by a std::stream. More...
Public Member Functions inherited from OpenMesh::IO::BaseReader
virtual | ~BaseReader ()
| Destructor.

## Additional Inherited Members

Protected Member Functions inherited from OpenMesh::IO::BaseReader
bool | check_extension (const std::string &_fname, const std::string &_ext) const

## Detailed Description

Implementation of the OFF format reader.

This class is singleton'ed by SingletonT to OFFReader.

By passing Options to the read function you can manipulate the reading behavoir. The following options can be set:

VertexNormal VertexColor VertexTexCoord FaceColor ColorAlpha [only when reading binary]

These options define if the corresponding data should be read (if available) or if it should be omitted.

After execution of the read function. The options object contains information about what was actually read.

e.g. if VertexNormal was true when the read function was called, but the file did not contain vertex normals then it is false afterwards.

When reading a binary off with Color Flag in the header it is assumed that all vertices and faces have colors in the format "int int int". If ColorAlpha is set the format "int int int int" is assumed.

## Member Function Documentation

## can_u_read()

bool OpenMesh::IO::_OFFReader_::can_u_read | ( | const std::string & | _filename | ) | const

virtual

Returns true if writer can parse _filename (checks extension).

_filename can also provide an extension without a name for a file e.g. _filename == "om" checks, if the reader can read the "om" extension

Parameters

  _filename | complete name of a file or just the extension

Returns
  true, if reader can read data with the given extension

Reimplemented from OpenMesh::IO::BaseReader.

## read() [1/2]

bool OpenMesh::IO::_OFFReader_::read | ( | const std::string & | _filename,
|  | BaseImporter & | _bi,
|  | Options & | _opt
| ) |  |

virtual

Reads a mesh given by a filename.

Usually this method opens a stream and passes it to stream read method. Acceptance checks by filename extension can be placed here.

Options can be passed via _opt. After execution _opt contains the Options that were available

Implements OpenMesh::IO::BaseReader.

## read() [2/2]

bool OpenMesh::IO::_OFFReader_::read | ( | std::istream & | _is,
|  | BaseImporter & | _bi,
|  | Options & | _opt
| ) |  |

virtual

Reads a mesh given by a std::stream.

This method usually uses the same stream reading method that read uses. Options can be passed via _opt. After execution _opt contains the Options that were available.

Please make sure that if _is is std::ifstream, the correct std::ios_base::openmode flags are set.

Implements OpenMesh::IO::BaseReader.

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

- OpenMesh/Core/IO/reader/OFFReader.hh
- OpenMesh/Core/IO/reader/OFFReader.cc