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OFF—Wolfram Language Documentation

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• See Also
  • Import
  • Export
  • CloudExport
  • CloudImport
  • Formats
  • 3DS
  • BYU
  • JVX
  • LWO
  • Maya
  • NOFF
  • OBJ
  • PLY
  • POV
  • RIB
  • VRML
  • X3D
  • ZPR
• Related Guides
  • 3D Geometry & Modeling Formats
  • Geometric Computation
  • 3D Printing
  • Graphics Importing & Exporting
  • Importing & Exporting
  • Listing of All Formats

• Import and Export support ASCII and binary versions of the OFF file format.

• • OFF 3D geometry format.
  • Used for storing and exchanging 3D models.
  • OFF is an acronym for Object File Format.
  • Occasionally called COFF if color information is present.
  • Related to NOFF and CNOFF.
  • ASCII or binary format.
  • Represents a single 2D or 3D object.
  • Stores a collection of planar polygons with possibly shared vertices.
  • Supports polygon and vertex colors and opacity specifications.

• Import["file.off"] imports an OFF file as a MeshRegion object representing the surface.
• Import["file.off",elem] imports the specified element from an OFF file.
• The import format can be specified with Import["file","OFF"] or Import["file",{"OFF",elem,…}].
• Export["file.off",expr] exports a 3D mesh-based geometric region to a binary OFF file. The expr can be any region that is ConstantRegionQ or a Graphics or Graphics3D object.
• Export["file.off",expr,{opt₁->val₁,…}] exports expr with the specified options for the file format.
• The export format can be specified with Export["file",expr,"OFF"] or Export["file",expr,{"OFF",opt₁->val₁,…}].
• See the following reference pages for full general information:

• General Import elements:
• "Elements" list of elements and options available in this file "Summary" summary of the file "Rules" list of rules for all available elements
• Data format representation elements:
• "BinaryFormat" whether the file is a binary or ASCII OFF "VertexData" list of vertex coordinates "PolygonData" the polygon elements in indexed form "VertexColors" colors associated with each vertex "PolygonColors" face color information for each polygon
• Geometry representation elements:
• "BoundaryMeshRegion" boundary mesh representation of the solid "MeshRegion" mesh representation of the surface
• Graphics representation elements:
• "Graphics" 2D OFF file represented as a Graphics object "Graphics3D" 3D geometry represented as a Graphics3D object "GraphicsComplex" OFF file as a GraphicsComplex object "PolygonObjects" list of Polygon primitives given in absolute coordinates

• Export options:
• "BinaryFormat" True whether to write a binary or ASCII file

Import a 3D model from OFF as a MeshRegion object:

Summary properties of the model:

Export a 3D model to an OFF file:

Print the raw textual contents of the file:

Import works on an ASCII OFF file:

Binary OFF file:

Any accessible URL:

Stream:

Import automatically detects OFF files:

Import provides access to elements in the OFF file:

Import works on large files:

Export works on 3D graphics:

Special regions:

Formula regions:

Mesh regions:

Export to a binary OFF file:

ASCII OFF file:

Test whether this file is a binary or ASCII OFF:

Give a boundary mesh region:

The coordinate system used by the OFF format is identical to the Wolfram Language:

Give the polygon elements in indexed form:

Give the list of Polygon primitives given in absolute coordinates:

Give the summary of properties:

File size:

Give the vertex coordinates:

By default, a binary file is generated when exporting:

Print the raw textual contents of the file:

Use "BinaryFormat" False to generate an ASCII file:

Print the raw textual contents of the file:

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