- r -
- Radial : HPS::Parasolid::Line::Hatching
- ReferenceFrame : HPS::Text
- Region : HPS::Parasolid::Line
- RegionAlignment : HPS::Text
- RegionFitting : HPS::Text
- Relation : HPS::Shell
- RelationTest : HPS::Shell
- Renderer : HPS::Text
- RenderingAlgorithm : HPS::Subwindow
- ResolutionUnits : HPS::Hardcopy
- Result : HPS::OOC::SynchronizedActions
- Rotation : HPS::Publish::Text , HPS::Text