To help provide a better time writing VTK-m filter this streamlines
the CreateResult API to provide a focused set of methods, based on
how CreateResult has been used by existing filters.
The field infrastructure has a "trait" that specifies the valid types
for the default active scalar field. Most filters have at most one input
field. The majority of the remaining filters use the same types for
inputs. There are some examples, however, where some auxiliary fields
use different types. This change adds a second template parameter to
FieldTraits to customize the valid types of the input scalar field to
different fields.
These changes are in anticipation of the removal of list specifier tags
on worklet ControlSignature arguments.
Now that the dispatcher does its own TryExecute, filters do not need to
do that. This change requires all worklets called by filters to be able
to execute without knowing the device a priori.
This commit adds a worklet as well as a filter that modify point coordinates by moving points
along point normals by the scalar amount times the scalar factor.
It's a simpified version of the vtkWarpScalar class in VTK. Additionally the filter doesn't
modify the point coordinates, but creates a new point coordinates that have been warped.
