Computer-Aided Three-dimensional Interactive Application V4 (CatiaV4)¶
CatiaV4 is a native CAD format developed in 1993 by Dassault Systèmes as part of the CATIA system. It has been widely used in the aerospace and automotive industries to store 3D models, assemblies, and associated metadata. CatiaV4 files are binary-encoded. instant3Dhub supports the visualization and handling of structural and geometric data from CatiaV4 files, while features such as PMI and Model Views are not supported by format.
🔍 See 3D Data Resources for details and definitions.
Extensions¶
Supported:
.model: They contain geometry (solids, surfaces, wireframe) for what would be a “Part” in later versions.
.exp: Export files used for data exchange.
.session: Files that store assembly sessions or overlays of multiple models.
Not supported:
.dlv
.dlv3
.dlv4
.mod / .mdl
.project
Structure¶
TBD
Geometry¶
CatiaV4 supports both exact geometry through boundary representations (B-Rep) and approximate geometry through tessellations.
Tesselation¶
TBD
B-Rep¶
CatiaV4 employs B-Rep geometry, storing wireframe, surface, and solid elements. instant3Dhub supports these elements directly, enabling accurate visualization and analysis.
PMI & Model Views¶
PMI & Model Views are not supported in CatiaV4.
Metadata¶
CatiaV4 metadata are supported in instant3Dhub.
Service Negotiation Key¶
model/vnd.dassault.catia.V4