- u -

• u64 : ON_SerialNumberMap::MAP_VALUE
• uc_val : ON_DimStyle::DimstyleField
• ui : ON_SerialNumberMap::MAP_VALUE
• Underscore : ON_String , ON_wString
• UnitCircle : ON_Arc , ON_Circle
• UnitX : ON_2iVector
• UnitY : ON_2iVector
• Unset : CRhinoDocTableReference , CRhinoFileReadOptions , ON_2dex , ON_2dSize , ON_2iBoundingBox , ON_2iPoint , ON_2iSize , ON_2iVector , ON_2udex , ON_3dex , ON_3dmArchiveTableStatus , ON_3dmObjectAttributes , ON_3udex , ON_4dex , ON_4dRect , ON_4fColor , ON_4iRect , ON_4udex , ON_AngleValue , ON_Bitmap , ON_ContentHash , ON_DBL , ON_DepthImagePixel , ON_DepthImageTriangle , ON_DimStyle , ON_EarthAnchorPoint , ON_EmbeddedBitmap , ON_ErrorEvent , ON_FileReference , ON_Font , ON_FontGlyph , ON_FontMetrics , ON_Geometry , ON_Group , ON_HatchLine , ON_HatchPattern , ON_InstanceDefinition , ON_Layer , ON_LengthValue , ON_Light , ON_Linetype , ON_LinetypeSegment , ON_ManifestMapItem , ON_MappingTag , ON_Material , ON_MeshComponentRef , ON_MeshFaceSide , ON_ModelComponent , ON_ModelComponentContentMark , ON_ModelGeometryComponent , ON_Outline , ON_OutlineFigure , ON_OutlineFigurePoint , ON_ParticleSystem::ON_ParticleState , ON_PickPoint , ON_ScaleValue , ON_SectionStyle , ON_SubD_ComponentIdTypeAndTag , ON_SubDComponentBase , ON_SubDComponentFilter , ON_SubDComponentId , ON_SubDComponentParameter , ON_SubDComponentPoint , ON_SubDComponentRegionIndex , ON_SubDFaceCornerDex , ON_SubDRTreeVertexFinder , ON_SubDSectorSurfacePoint , ON_SubDSurfaceNurbsFragment , ON_SubDVertexSharpnessCalculator , ON_SubDVertexSurfacePointCoefficient , ON_SurfaceCurvatureColorMapping , ON_SurfaceDraftAngleColorMapping , ON_Symmetry , ON_TextBox , ON_TextDot , ON_TextStyle , ON_TextureMapping , ON_UnitSystem , ON_WindingNumber , ON_WindowsBitmap , ON_WindowsBitmapEx , ON_Xform , ONX_ModelTest
• UnsetAndNan : ON_ComponentIndexAndNumber
• UnsetAndZero : ON_ComponentIndexAndNumber
• UnsetBoundingBox : ON_BoundingBox
• UnsetCheckSum : ON_CheckSum
• UnsetColor : ON_Color
• UnsetComponentIndex : ON_COMPONENT_INDEX
• UnsetCornerSectorAngle : ON_SubDSectorType
• UnsetEvent : ON_ClashEvent
• UnsetItem : ON_ComponentManifestItem
• UnsetLine : ON_Line
• UnsetMeshFace : ON_MeshFace
• UnsetMeshTriangle : ON_MeshTriangle
• UnsetNameHash : ON_NameHash
• UnsetParameters : ON_SilhouetteParameters
• UnsetPlane : ON_Plane
• UnsetPlaneEquation : ON_PlaneEquation
• UnsetPoint : ON_2dPoint , ON_3dPoint , ON_MeshThicknessAnalysisPoint
• UnsetSectorCoefficient : ON_SubDSectorType
• UnsetSectorTheta : ON_SubDSectorType
• UnsetTriangle : ON_Triangle
• UnsetVector : ON_2dVector , ON_3dVector
• uuidPlugInId : ChangeQueue