d626f7317d
This makes is slightly easier to use as you do not actually have to construct the DataSetBuilder object but just call its static method. The DataSetBuilderExplicitIterative methods are not static because they use state of the builder object to create the data.
250 lines
7.8 KiB
C++
250 lines
7.8 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 2015 Sandia Corporation.
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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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_cont_DataSetBuilderRectilinear_h
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#define vtk_m_cont_DataSetBuilderRectilinear_h
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#include <vtkm/cont/ArrayHandleCartesianProduct.h>
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#include <vtkm/cont/ArrayPortalToIterators.h>
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#include <vtkm/cont/Assert.h>
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#include <vtkm/cont/CoordinateSystem.h>
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#include <vtkm/cont/DataSet.h>
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namespace vtkm {
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namespace cont {
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class DataSetBuilderRectilinear
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{
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template<typename T, typename U>
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VTKM_CONT_EXPORT
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static
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void CopyInto(const std::vector<T>& input,
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vtkm::cont::ArrayHandle<U>& output )
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{
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output.Allocate( static_cast<vtkm::Id>(input.size()) );
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std::copy( input.begin(), input.end(),
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ArrayPortalToIteratorBegin(output.GetPortalControl()) );
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}
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template<typename T, typename U>
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VTKM_CONT_EXPORT
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static
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void CopyInto(const vtkm::cont::ArrayHandle<T>& input,
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vtkm::cont::ArrayHandle<U>& output )
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{
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output.Allocate( input.GetNumberOfValues() );
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std::copy( ArrayPortalToIteratorBegin(input.GetPortalConstControl()),
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ArrayPortalToIteratorEnd(input.GetPortalConstControl()),
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ArrayPortalToIteratorBegin(output.GetPortalControl()) );
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}
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template<typename T, typename U>
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VTKM_CONT_EXPORT
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static
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void CopyInto(const T* input, vtkm::Id len,
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vtkm::cont::ArrayHandle<U>& output )
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{
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output.Allocate( len );
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std::copy( input, input+len,
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output.GetPortalControl().GetIteratorBegin() );
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}
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public:
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VTKM_CONT_EXPORT
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DataSetBuilderRectilinear() {}
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//2D grids.
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(vtkm::Id nx, vtkm::Id ny,
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T *xvals, T *yvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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T zvals = 0;
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return DataSetBuilderRectilinear::Create(
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2, nx,ny, 1, xvals, yvals, &zvals, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(int dim, vtkm::Id nx, vtkm::Id ny, vtkm::Id nz,
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T *xvals, T *yvals, T *zvals,
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std::string coordNm, std::string cellNm)
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{
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VTKM_ASSERT_CONT(nx>1 && ny>1 &&
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((dim==2 && nz==1)||(dim==3 && nz>=1)));
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> Xc, Yc, Zc;
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DataSetBuilderRectilinear::CopyInto(xvals,nx,Xc);
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DataSetBuilderRectilinear::CopyInto(yvals,ny,Yc);
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DataSetBuilderRectilinear::CopyInto(zvals,nz,Zc);
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return DataSetBuilderRectilinear::BuildDataSet(
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dim, Xc,Yc,Zc, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const std::vector<T> &xvals, const std::vector<T> &yvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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std::vector<T> zvals(1,0);
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return DataSetBuilderRectilinear::BuildDataSet(
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2, xvals,yvals,zvals, coordNm,cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const vtkm::cont::ArrayHandle<T> &xvals,
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const vtkm::cont::ArrayHandle<T> &yvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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VTKM_ASSERT_CONT(xvals.GetNumberOfValues()>1 && yvals.GetNumberOfValues()>1);
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vtkm::cont::ArrayHandle<T> zvals;
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zvals.Allocate(1);
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zvals.GetPortalControl().Set(0,0.0);
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return DataSetBuilderRectilinear::BuildDataSet(
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2, xvals,yvals,zvals, coordNm, cellNm);
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}
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//3D grids.
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(vtkm::Id nx, vtkm::Id ny, vtkm::Id nz,
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T *xvals, T *yvals, T *zvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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return DataSetBuilderRectilinear::Create(
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3, nx,ny,nz, xvals, yvals, zvals, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const std::vector<T> &xvals,
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const std::vector<T> &yvals,
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const std::vector<T> &zvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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return DataSetBuilderRectilinear::BuildDataSet(
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3, xvals, yvals, zvals, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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Create(const vtkm::cont::ArrayHandle<T> &xvals,
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const vtkm::cont::ArrayHandle<T> &yvals,
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const vtkm::cont::ArrayHandle<T> &zvals,
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std::string coordNm="coords", std::string cellNm="cells")
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{
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VTKM_ASSERT_CONT(xvals.GetNumberOfValues()>1 &&
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yvals.GetNumberOfValues()>1 &&
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zvals.GetNumberOfValues()>1);
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return DataSetBuilderRectilinear::BuildDataSet(
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3, xvals,yvals,zvals, coordNm, cellNm);
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}
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private:
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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BuildDataSet(int dim,
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const std::vector<T> &xvals,
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const std::vector<T> &yvals,
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const std::vector<T> &zvals,
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std::string coordNm, std::string cellNm)
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{
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VTKM_ASSERT_CONT(xvals.size()>1 && yvals.size()>1 &&
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((dim==2 && zvals.size()==1)||(dim==3 && zvals.size()>=1)));
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> Xc, Yc, Zc;
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DataSetBuilderRectilinear::CopyInto(xvals, Xc);
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DataSetBuilderRectilinear::CopyInto(yvals, Yc);
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DataSetBuilderRectilinear::CopyInto(zvals, Zc);
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return DataSetBuilderRectilinear::BuildDataSet(
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dim, Xc,Yc,Zc, coordNm, cellNm);
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}
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template<typename T>
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VTKM_CONT_EXPORT
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static
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vtkm::cont::DataSet
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BuildDataSet(int dim,
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const vtkm::cont::ArrayHandle<T> &X,
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const vtkm::cont::ArrayHandle<T> &Y,
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const vtkm::cont::ArrayHandle<T> &Z,
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std::string coordNm, std::string cellNm)
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{
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vtkm::cont::DataSet dataSet;
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//Convert all coordinates to floatDefault.
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vtkm::cont::ArrayHandleCartesianProduct<
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vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
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vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> > coords;
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> Xc, Yc, Zc;
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DataSetBuilderRectilinear::CopyInto(X, Xc);
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DataSetBuilderRectilinear::CopyInto(Y, Yc);
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DataSetBuilderRectilinear::CopyInto(Z, Zc);
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coords = vtkm::cont::make_ArrayHandleCartesianProduct(Xc,Yc,Zc);
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vtkm::cont::CoordinateSystem cs(coordNm, 1, coords);
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dataSet.AddCoordinateSystem(cs);
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if (dim == 2)
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{
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vtkm::cont::CellSetStructured<2> cellSet(cellNm);
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cellSet.SetPointDimensions(vtkm::make_Vec(Xc.GetNumberOfValues(),
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Yc.GetNumberOfValues()));
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dataSet.AddCellSet(cellSet);
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}
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else
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{
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vtkm::cont::CellSetStructured<3> cellSet(cellNm);
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cellSet.SetPointDimensions(vtkm::make_Vec(Xc.GetNumberOfValues(),
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Yc.GetNumberOfValues(),
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Zc.GetNumberOfValues()));
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dataSet.AddCellSet(cellSet);
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}
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return dataSet;
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}
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};
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} // namespace cont
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} // namespace vtkm
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#endif //vtk_m_cont_DataSetBuilderRectilinear_h
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