vtk-m2/docs/changelog/simplify-create-fields.md

Simplify creating Fields from ArrayHandles

VTK-m now offers make_FieldPoint and make_FieldCell functions that reduce the complexity of construction vtkm::cont::Fields from vtkm::cont::ArrayHandles.

Previously to construct a point and cell fields you would do:

vtkm::cont::ArrayHandle<int> pointHandle;
vtkm::cont::ArrayHandle<int> cellHandle;
vtkm::cont::Field pointField("p", vtkm::cont::Field::Association::POINTS, pointHandle);
vtkm::cont::Field cellField("c", vtkm::cont::Field::Association::CELL_SET, "cells", cellHandle);

Now with the new make_ functions you can do:

vtkm::cont::ArrayHandle<int> pointHandle;
vtkm::cont::ArrayHandle<int> cellHandle;
auto pointField = vtkm::cont::make_FieldPoint("p", pointHandle);
auto cellField = vtkm::cont::make_FieldCell("c", "cells", cellHandle);