vtkGradientFilter

Section: Visualization Toolkit Graphics Classes

Usage

Estimates the gradient of a field in a data set. The gradient calculation is dependent on the input dataset type. The created gradient array is of the same type as the array it is calculated from (e.g. point data or cell data) as well as data type (e.g. float, double). At the boundary the gradient is not central differencing. The output array has 3*number of components of the input data array. The ordering for the output tuple will be {du/dx, du/dy, du/dz, dv/dx, dv/dy, dv/dz, dw/dx, dw/dy, dw/dz} for an input array {u, v, w}.

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

  obj = vtkGradientFilter

Methods

The class vtkGradientFilter 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 vtkGradientFilter class.