Computer-Aided Three-dimensional Interactive Application V5 (CatiaV5)¶
Similar to the CATIA platform, the CATIA format is a respective native file format developed by Dassault Systèmes. Available in three versions CatiaV4, CatiaV5, and CatiaV6, these files are widely used in automotive, aerospace, and industrial equipment industries. CATIA files can contain 3D models, assemblies, 2D drawings, and associated metadata.
🔍 See 3D Data Concepts for details and definitions.
Extensions¶
.CATPart: 3D data in general (wire geometry, surfaces, solids)
.CATProduct: Spatial arrangement and organization of CATParts and other CATProducts, as well as additional metadata such as constraints, sections, annotations, measures, scenes
.cgr: representing a simplified model of the outer shell of bodies, approximated by flat triangular surfaces.
Not supported:
.CATDrawing
.CATMaterial
Structure¶
CatiaV5 offers a very flexible tree. It differentiates between multiple types of documents and nodes in a tree. The following is a selection of the most common ones:
Products
Part
Part Body
Shape
- Others
Materials
Datums
Parameters
Representations
Relations
…
instant3Dhub general supports structural information. Specifically the following are supported:
Currently in development are: * Construction Geometries * Invisible Geometries (typically set to Hide in Catia)
Geometry¶
Catia is based on the CGM modeler. It supports a wide range of geometry types typically reprenseted in the form of BRep. instant3Dhub generally supports them.
Some might use the .cgr extension. The CGR format is similar to the STL format, representing a simplified model of the outer shell of bodies, approximated by flat triangular surfaces.
To learn more about working with geometries refer to InstanceGraphAPI and TopologyAPI.
PMI & Model Views¶
Catia supports PMI (Product Manufacturing Information) in the form of annotations, dimensions, and GD&T typically created in either the Functional Tolerancing and Annotation module or the Tolerance Advisor. instant3Dhub supports PMI.
Metadata¶
TBD
Resources¶
For more information on Catia refer to