- u -
- UInt32 : vtkXMLWriter
- UInt64 : vtkXMLWriter
- UNDEFINED : vtkStructuredAMRNeighbor, vtkStructuredNeighbor
- UNDEFINED_UNITS : vtkNetCDFCFReader::vtkDimensionInfo
- UndefinedRenderMode : vtkAMRVolumeMapper, vtkSmartVolumeMapper
- UNDIRECTED_OUTPUT : vtkCollectGraph
- UndirectedGraph : vtkGraphReader
- UNEXPECTED_VALUE : vtkGenericStreamTracer, vtkInitialValueProblemSolver, vtkStreamTracer
- UNIF : vtkRRandomTableSource
- UNIFORM : vtkLICRandomNoise2D
- UNINITIALIZED : vtkAnimationCue
- UNIQUE : vtkSQLDatabaseSchema
- UnitRadius : vtkMoleculeMapper, vtkMoleculeToAtomBallFilter
- UnitsHz : vtkNIFTIImageHeader
- UnitsMeter : vtkNIFTIImageHeader
- UnitsMicron : vtkNIFTIImageHeader
- UnitsMM : vtkNIFTIImageHeader
- UnitsMSec : vtkNIFTIImageHeader
- UnitsPPM : vtkNIFTIImageHeader
- UnitsRads : vtkNIFTIImageHeader
- UnitsSec : vtkNIFTIImageHeader
- UnitsSpace : vtkNIFTIImageHeader
- UnitsTime : vtkNIFTIImageHeader
- UnitsUnknown : vtkNIFTIImageHeader
- UnitsUSec : vtkNIFTIImageHeader
- UNKNOWN : vtkGenericStreamTracer, vtkParticleTracerBase, vtkQuadricLODActor
- Unknown : vtkShader
- UNKNOWN : vtkStreamTracer
- UnknownError : vtkErrorCode
- UnknownGraph : vtkGraphReader
- UNPACKED_BUFFER : vtkPixelBufferObject
- UnrecognizedFileTypeError : vtkErrorCode
- UNSUPPORTED_EXTENSIONS : vtkHAVSVolumeMapper
- Up : vtkWidgetEvent
- UP_TO_DOWN : vtkDendrogramItem, vtkHeatmapItem
- UpdateRange : vtkChart
- UpperCenter : vtkLabelPlacer, vtkTextRepresentation
- UpperEdge : vtkCornerAnnotation
- UpperLeft : vtkCornerAnnotation, vtkLabelPlacer
- UpperLeftCorner : vtkTextRepresentation
- UpperRight : vtkCornerAnnotation, vtkLabelPlacer
- UpperRightCorner : vtkTextRepresentation
- USE_EXISTING : vtkSQLiteDatabase
- USE_EXISTING_OR_CREATE : vtkSQLiteDatabase
- USE_INPUT_TYPE : vtkCollectGraph
- USE_X : vtkQuadRotationalExtrusionFilter, vtkReflectionFilter, vtkRotationFilter
- USE_X_MAX : vtkReflectionFilter
- USE_X_MIN : vtkReflectionFilter
- USE_Y : vtkQuadRotationalExtrusionFilter, vtkReflectionFilter, vtkRotationFilter
- USE_Y_MAX : vtkReflectionFilter
- USE_Y_MIN : vtkReflectionFilter
- USE_Z : vtkQuadRotationalExtrusionFilter, vtkReflectionFilter, vtkRotationFilter
- USE_Z_MAX : vtkReflectionFilter
- USE_Z_MIN : vtkReflectionFilter
- USER_DEFINED_SHAFT : vtkAxesActor
- USER_DEFINED_TIP : vtkAxesActor
- UserBackend : vtkTextRenderer
- UserError : vtkErrorCode, vtkGenericMovieWriter
- UserIdData : LSDynaFamily