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vtkFocalPlanePointPlacer

Section: Visualization Toolkit Widget Classes

# Usage

To create an instance of class vtkFocalPlanePointPlacer, simply invoke its constructor as follows

      obj = vtkFocalPlanePointPlacer

# Methods

The class vtkFocalPlanePointPlacer has several methods that can be used. They are listed below. Note that the documentation is translated automatically from the VTK sources, and may not be completely intelligible. When in doubt, consult the VTK website. In the methods listed below, `obj` is an instance of the vtkFocalPlanePointPlacer class.

- `string = obj.GetClassName ()` - Standard methods for instances of this class.
- `int = obj.IsA (string name)` - Standard methods for instances of this class.
- `vtkFocalPlanePointPlacer = obj.NewInstance ()` - Standard methods for instances of this class.
- `vtkFocalPlanePointPlacer = obj.SafeDownCast (vtkObject o)` - Standard methods for instances of this class.
- `int = obj.ComputeWorldPosition (vtkRenderer ren, double displayPos[2], double worldPos[3], double worldOrient[9])`
- `int = obj.ComputeWorldPosition (vtkRenderer ren, double displayPos[2], double refWorldPos[3], double worldPos[3], double worldOrient[9])` - Given a renderer, a display position, and a reference world position, compute a new world position. The orientation will be the standard coordinate axes, and the computed world position will be created by projecting the display point onto a plane that is parallel to the focal plane and runs through the reference world position. This method is typically used to move existing points.
- `int = obj.ValidateWorldPosition (double worldPos[3])` - Validate a world position. All world positions are valid so these methods always return 1.
- `int = obj.ValidateWorldPosition (double worldPos[3], double worldOrient[9])` - Validate a world position. All world positions are valid so these methods always return 1.
- `obj.SetOffset (double )` - Optionally specify a signed offset from the focal plane for the points to be placed at. If negative, the constraint plane is offset closer to the camera. If positive, its further away from the camera.
- `double = obj.GetOffset ()` - Optionally specify a signed offset from the focal plane for the points to be placed at. If negative, the constraint plane is offset closer to the camera. If positive, its further away from the camera.
- `obj.SetPointBounds (double , double , double , double , double , double )` - Optionally Restrict the points to a set of bounds. The placer will invalidate points outside these bounds.
- `obj.SetPointBounds (double a[6])` - Optionally Restrict the points to a set of bounds. The placer will invalidate points outside these bounds.
- `double = obj. GetPointBounds ()` - Optionally Restrict the points to a set of bounds. The placer will invalidate points outside these bounds.