Stay ISO compliant and easily manage GD&T data
In today’s manufacturing landscape, 3D digital modeling is universal across industries of all sizes. As designs require review by numerous stakeholders, visualization software must go beyond basic geometry display to include standards-compliant Product Manufacturing Information (PMI). This critical data encompasses geometric dimensioning and tolerancing (GD&T), surface finish requirements, and manufacturing annotations that define how parts should be produced.
Leveraging over 20 years of expertise in industrial 3D visualization solutions, Open CASCADE offers its proven PMI Visualization technology that ensures all PMI representations conform precisely to international standards: geometrical tolerancing implemented according to ISO 1101:2012 and visualization of GD&T data in 3D scenes following ISO 16792:2015.
This standards-compliant visualization guarantees digital continuity, ensuring that universal symbols and styles are used for PMI presentations regardless of the originating software system.
Key Benefits
- Standards Compliance – Full conformance with ISO 1101:2012 and ISO 16792:2015
- Enhanced Data Integrity – Significantly reduces errors from misinterpretation of industrial data
- Universal Interpretation – Ensures consistent PMI presentation across engineering teams
- Seamless Integration – Easy incorporation into OCCT-based visualization applications
- Multi-Source Support – Handles PMI data from various CAD systems and formats
Comprehensive Data Source Support
Solutions built with the PMI Visualization module effectively handle PMI data from diverse origins:
- PMI entities imported from STEP AP242 (ISO 10303-242)
- JT format (ISO 14306:2017)
- Proprietary CAD formats through appropriate data translators
Supported Presentations
PMI presentations can be created using a rich set of geometry combinations (points, lines, surfaces):
Dimensional Information
- Angular dimensions
- Linear dimensions
- Radial dimensions
- Thickness callouts
Tolerance and Datum Features
- Geometric dimensioning and tolerancing symbols
- Datum reference frames
- Feature control frames
- Position tolerance indicators
Notes and Special Notations
- Text annotations
- Surface finish symbols
- Special notations and symbols
- Manufacturing specifications
Proven Implementation Examples
The PMI Visualization component has been successfully deployed in:
- Customer Products – Implemented across various industries in specialized visualization applications
- DMU Reviewer – Open CASCADE’s software visualization tool designed for collaborative work with massive 3D data
- CAD Assistant – Free offline viewer and converter for 3D CAD files and meshes (partial functionality), available on Windows, Linux, Android, and iOS
This component demonstrates Open CASCADE’s capabilities in PMI Visualization and can be customized to meet specific industry requirements.
