Framework:Model Visualization and Display
From DocR21
The ACIS Modeling Visualization and Display framework comprises four components which facilitate the display list, faceting, and hidden line removal of an ACIS model. The flagship component of this ACIS Framework is the HOOPS/ACIS Bridge which supports the generation of HOOPS® display data from an ACIS model. In conjunction with the HOOPS/ACIS Bridge is the ACIS Faceter and two forms of hidden line removal (interactive and precise).
| Component | Description |
|---|---|
| HOOPS/ACIS Bridge | The HOOPS/ACIS Bridge encapsulates the work needed to connect ACIS modeler from Spatial to the HOOPS/3dGS. The bridge provides an API for controlling the manner in which ACIS' geometric tessellation is mapped to HOOPS primitives ... |
| Faceting | The Faceter Component (FCT) generates and controls approximate polygonal representations. The polygon approximations are used in all active and static rendering, in clearance analysis, and in operations where approximations are acceptable to simplify calculations ... |
| Interactive Hidden Line | The Interactive Hidden Line Component (IHL), creates views of ACIS model objects with hidden lines removed based on tessellated data ... |
| PHL V5 | The Precise Hidden Line Removal V5 Component (PHL V5), calculates hidden line data (based in actual modeling data) and draws hidden line representations of the model ... |
Some of the ACIS R21 improvements are:
- HOOPS/ACIS Bridge
- New Faceter Functionality
- The spline gridding algorithm has been rewritten to improve accuracy and robustness
- The default tolerances have been revised for reduced facet count
- Customers who used refinements are advised to reevaluate their tolerance choices to achieve optimum performance
- The algorithm has been refactored to reduce memory footprint per facet
- The interface has been simplified
- For pre-R21 behavior, call the faceting APIs with the version tag set below R21
- Facet Count
- Much Smaller Memory Footprint
- New Default Settings
- Faceter Problem Reporting
- Changes Needed to Your Mesh Manager
- Performance
- Recommended Mesh Manager
