Index - R
| r2d | Wumpus.Core.Geometry, Wumpus.Core | 
| Radian | Wumpus.Core.Geometry, Wumpus.Core | 
| rbezierEllipse | Wumpus.Core.Geometry, Wumpus.Core | 
| red | Wumpus.Core.Colour | 
| reflectX | Wumpus.Core.AffineTrans, Wumpus.Core | 
| reflectXPlane | Wumpus.Core.AffineTrans, Wumpus.Core | 
| reflectY | Wumpus.Core.AffineTrans, Wumpus.Core | 
| reflectYPlane | Wumpus.Core.AffineTrans, Wumpus.Core | 
| relCurveTo | Wumpus.Core.Picture, Wumpus.Core | 
| relLineTo | Wumpus.Core.Picture, Wumpus.Core | 
| relPrimPath | Wumpus.Core.Picture, Wumpus.Core | 
| rescapedlabel | Wumpus.Core.Picture, Wumpus.Core | 
| retraceBoundary | Wumpus.Core.BoundingBox, Wumpus.Core | 
| rfillEllipse | Wumpus.Core.Picture, Wumpus.Core | 
| rfillStrokeEllipse | Wumpus.Core.Picture, Wumpus.Core | 
| RGBi | |
| 1 (Type/Class) | Wumpus.Core.Colour, Wumpus.Core | 
| 2 (Data Constructor) | Wumpus.Core.Colour, Wumpus.Core | 
| Rotate | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate120 | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate120About | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate30 | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate30About | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate45 | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate45About | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate60 | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate60About | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate90 | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotate90About | Wumpus.Core.AffineTrans, Wumpus.Core | 
| RotateAbout | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotateAbout | Wumpus.Core.AffineTrans, Wumpus.Core | 
| rotationMatrix | Wumpus.Core.Geometry, Wumpus.Core | 
| rstrokeEllipse | Wumpus.Core.Picture, Wumpus.Core | 
| rtextlabel | Wumpus.Core.Picture, Wumpus.Core |