- u -
- UNDEFINED
: vtkStructuredAMRNeighbor
, vtkStructuredNeighbor
- UNDIRECTED_OUTPUT
: vtkCollectGraph
- UNEXPECTED_VALUE
: vtkGenericStreamTracer
, vtkStreamTracer
- UNIF
: vtkRRandomTableSource
- UnitRadius
: vtkMoleculeMapper
, vtkMoleculeToAtomBallFilter
- UNKNOWN
: vtkGenericStreamTracer
, vtkParticleTracerBase
, vtkStreamTracer
- 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