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https://gitlab.kitware.com/vtk/vtk-m
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86a747a117
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.
98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_worklet_WarpScalar_h
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#define vtk_m_worklet_WarpScalar_h
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/VecTraits.h>
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namespace vtkm
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{
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namespace worklet
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{
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// A functor that modify points by moving points along point normals by the scalar
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// amount times the scalar factor. It's a VTK-m version of the vtkWarpScalar in VTK.
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// Useful for creating carpet or x-y-z plots.
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// It doesn't modify the point coordinates, but creates a new point coordinates
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// that have been warped.
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class WarpScalar
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{
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public:
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class WarpScalarImp : public vtkm::worklet::WorkletMapField
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{
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public:
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using ControlSignature = void(FieldIn<>, FieldIn<>, FieldIn<>, FieldOut<>);
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using ExecutionSignature = void(_1, _2, _3, _4);
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VTKM_CONT
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WarpScalarImp(vtkm::FloatDefault scaleAmount)
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: ScaleAmount(scaleAmount)
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{
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}
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VTKM_EXEC
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void operator()(const vtkm::Vec<vtkm::FloatDefault, 3>& point,
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const vtkm::Vec<vtkm::FloatDefault, 3>& normal,
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const vtkm::FloatDefault& scaleFactor,
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vtkm::Vec<vtkm::FloatDefault, 3>& result) const
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{
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result = point + this->ScaleAmount * scaleFactor * normal;
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}
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template <typename T1, typename T2, typename T3>
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VTKM_EXEC void operator()(const vtkm::Vec<T1, 3>& point,
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const vtkm::Vec<T2, 3>& normal,
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const T3& scaleFactor,
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vtkm::Vec<T1, 3>& result) const
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{
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result = point + static_cast<T1>(this->ScaleAmount * scaleFactor) * normal;
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}
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private:
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vtkm::FloatDefault ScaleAmount;
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};
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// Execute the WarpScalar worklet given the points, vector and a scale factor.
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// Scale factor can differs per point.
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template <typename PointType,
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typename NormalType,
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typename ScaleFactorType,
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typename ResultType,
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typename ScaleAmountType>
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void Run(PointType point,
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NormalType normal,
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ScaleFactorType scaleFactor,
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ScaleAmountType scale,
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ResultType warpedPoint)
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{
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WarpScalarImp warpScalarImp(scale);
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vtkm::worklet::DispatcherMapField<WarpScalarImp> dispatcher(warpScalarImp);
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dispatcher.Invoke(point, normal, scaleFactor, warpedPoint);
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}
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};
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}
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} // namespace vtkm::worklet
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#endif // vtk_m_worklet_WarpScalar_h
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