Context:
- Aerospace and Defence Industry use more and more full 3D definition without 2D drawings and archive full 3D definition in STEP standards (as recommended by NAS/EN 9300 LOTAR).
- Current 3D Viewers are not fully able to read STEP AP203/AP214 and future AP242 files carrying the following essential information:
- 3D Shape (exact and tessellated BREP representations)
- PMI (polyline presentation)
- Cross-highlight between shape and Product Manufacturing Information (PMI)
- Predefined views
- Assembly structure.
ASD recommends that 3D viewer Vendors include not yet fully supported capabilities in their 3D viewers, and that they participate to the CAx IF(*) for qualification of their 3D viewer STEP interfaces.
(*) CAx IF: http://www.cax-if.org/
ASD SSG Statements