mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-08 13:23:51 +00:00
Adding CellLocatorUniformGrid
- Adding a cell locator to locate points in a uniform grid - Adding unit tests for the new cell locator
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97
vtkm/cont/CellLocatorUniformGrid.h
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97
vtkm/cont/CellLocatorUniformGrid.h
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@ -0,0 +1,97 @@
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#ifndef vtkm_cont_celllocatoruniformgrid_h
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#define vtkm_cont_celllocatoruniformgrid_h
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#include <vtkm/cont/CellLocator.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/cont/DeviceAdapterAlgorithm.h>
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#include <vtkm/cont/ErrorBadDevice.h>
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#include <vtkm/exec/CellLocatorUniformGrid.h>
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namespace vtkm
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{
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namespace cont
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{
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class CellLocatorUniformGrid : public vtkm::cont::CellLocator
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{
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public:
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VTKM_CONT
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void Build() override
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{
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vtkm::cont::CoordinateSystem coords = this->GetCoordinates();
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vtkm::cont::DynamicCellSet cellSet = this->GetCellSet();
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if (!coords.GetData().IsType<UniformType>())
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throw vtkm::cont::ErrorInternal("CellSet is not 3D Structured Type");
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if (!cellSet.IsSameType(StructuredType()))
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throw vtkm::cont::ErrorInternal("CellSet is not 3D Structured Type");
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Bounds = coords.GetBounds();
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Dims = cellSet.Cast<StructuredType>().GetSchedulingRange(vtkm::TopologyElementTagPoint());
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RangeTransform[0] =
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static_cast<vtkm::FloatDefault>((Dims[0] - 1.0l) / (Bounds.X.Max - Bounds.X.Min));
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RangeTransform[1] =
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static_cast<vtkm::FloatDefault>((Dims[1] - 1.0l) / (Bounds.Y.Max - Bounds.Y.Min));
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RangeTransform[2] =
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static_cast<vtkm::FloatDefault>((Dims[2] - 1.0l) / (Bounds.Z.Max - Bounds.Z.Min));
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// Since we are calculating the cell Id, and the number of cells is
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// 1 less than the number of points in each direction, the -1 from Dims
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// is necessary.
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PlaneSize = (Dims[0] - 1) * (Dims[1] - 1);
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RowSize = (Dims[0] - 1);
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}
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struct PrepareForExecutionFunctor
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{
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template <typename DeviceAdapter>
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VTKM_CONT bool operator()(DeviceAdapter,
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const vtkm::cont::CellLocatorUniformGrid& contLocator,
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HandleType& execLocator) const
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{
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using ExecutionType = vtkm::exec::CellLocatorUniformGrid<DeviceAdapter>;
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ExecutionType* execObject =
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new ExecutionType(contLocator.Bounds,
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contLocator.Dims,
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contLocator.RangeTransform,
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contLocator.PlaneSize,
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contLocator.RowSize,
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contLocator.GetCellSet().template Cast<StructuredType>(),
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contLocator.GetCoordinates().GetData(),
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DeviceAdapter());
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execLocator.Reset(execObject);
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return true;
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}
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};
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VTKM_CONT
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const HandleType PrepareForExecutionImpl(
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const vtkm::cont::DeviceAdapterId deviceId) const override
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{
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const bool success = vtkm::cont::TryExecuteOnDevice(
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deviceId, PrepareForExecutionFunctor(), *this, this->ExecHandle);
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if (!success)
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{
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throwFailedRuntimeDeviceTransfer("CellLocatorUniformGrid", deviceId);
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}
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return this->ExecHandle;
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}
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private:
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using UniformType = vtkm::cont::ArrayHandleUniformPointCoordinates;
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using StructuredType = vtkm::cont::CellSetStructured<3>;
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vtkm::Bounds Bounds;
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vtkm::Vec<vtkm::Id, 3> Dims;
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vtkm::Vec<vtkm::FloatDefault, 3> RangeTransform;
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vtkm::Id PlaneSize;
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vtkm::Id RowSize;
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mutable HandleType ExecHandle;
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};
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}
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}
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#endif //vtkm_cont_celllocatoruniformgrid_h
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@ -23,6 +23,7 @@ set(unit_tests
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UnitTestCudaArrayHandleFancy.cu
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UnitTestCudaArrayHandleVirtualCoordinates.cu
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UnitTestCudaCellLocatorTwoLevelUniformGrid.cu
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UnitTestCudaCellLocatorUniformGrid.cu
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UnitTestCudaComputeRange.cu
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UnitTestCudaColorTable.cu
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UnitTestCudaDataSetExplicit.cu
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34
vtkm/cont/cuda/testing/UnitTestCudaCellLocatorUniformGrid.cu
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34
vtkm/cont/cuda/testing/UnitTestCudaCellLocatorUniformGrid.cu
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//============================================================================
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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 2017 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2017 UT-Battelle, LLC.
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// Copyright 2017 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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// Make sure that the tested code is using the device adapter specified. This
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// is important in the long run so we don't, for example, use the CUDA device
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// for a part of an operation where the TBB device was specified.
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#define VTKM_DEVICE_ADAPTER VTKM_DEVICE_ADAPTER_ERROR
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#include <vtkm/cont/testing/TestingCellLocatorUniformGrid.h>
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int UnitTestCudaCellLocatorUniformGrid(int, char* [])
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{
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auto tracker = vtkm::cont::GetGlobalRuntimeDeviceTracker();
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tracker.ForceDevice(vtkm::cont::DeviceAdapterTagCuda{});
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return vtkm::cont::testing::Testing::Run(
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TestingCellLocatorUniformGrid<vtkm::cont::DeviceAdapterTagCuda>());
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}
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@ -22,6 +22,7 @@ set(unit_tests
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UnitTestSerialArrayHandle.cxx
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UnitTestSerialArrayHandleFancy.cxx
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UnitTestSerialArrayHandleVirtualCoordinates.cxx
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UnitTestSerialCellLocatorUniformGrid.cxx
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UnitTestSerialCellLocatorTwoLevelUniformGrid.cxx
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UnitTestSerialComputeRange.cxx
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UnitTestSerialColorTable.cxx
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//============================================================================
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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 2017 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2017 UT-Battelle, LLC.
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// Copyright 2017 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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// Make sure that the tested code is using the device adapter specified. This
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// is important in the long run so we don't, for example, use the CUDA device
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// for a part of an operation where the TBB device was specified.
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#define VTKM_DEVICE_ADAPTER VTKM_DEVICE_ADAPTER_ERROR
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#include <vtkm/cont/testing/TestingCellLocatorUniformGrid.h>
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int UnitTestSerialCellLocatorUniformGrid(int, char* [])
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{
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auto tracker = vtkm::cont::GetGlobalRuntimeDeviceTracker();
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tracker.ForceDevice(vtkm::cont::DeviceAdapterTagSerial{});
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return vtkm::cont::testing::Testing::Run(
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TestingCellLocatorUniformGrid<vtkm::cont::DeviceAdapterTagSerial>());
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}
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@ -23,6 +23,7 @@ set(unit_tests
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UnitTestTBBArrayHandleFancy.cxx
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UnitTestTBBArrayHandleVirtualCoordinates.cxx
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UnitTestTBBCellLocatorTwoLevelUniformGrid.cxx
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UnitTestTBBCellLocatorUniformGrid.cxx
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UnitTestTBBColorTable.cxx
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UnitTestTBBComputeRange.cxx
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UnitTestTBBDataSetExplicit.cxx
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34
vtkm/cont/tbb/testing/UnitTestTBBCellLocatorUniformGrid.cxx
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34
vtkm/cont/tbb/testing/UnitTestTBBCellLocatorUniformGrid.cxx
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//============================================================================
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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 2017 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2017 UT-Battelle, LLC.
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// Copyright 2017 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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// Make sure that the tested code is using the device adapter specified. This
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// is important in the long run so we don't, for example, use the CUDA device
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// for a part of an operation where the TBB device was specified.
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#define VTKM_DEVICE_ADAPTER VTKM_DEVICE_ADAPTER_ERROR
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#include <vtkm/cont/testing/TestingCellLocatorUniformGrid.h>
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int UnitTestTBBCellLocatorUniformGrid(int, char* [])
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{
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auto tracker = vtkm::cont::GetGlobalRuntimeDeviceTracker();
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tracker.ForceDevice(vtkm::cont::DeviceAdapterTagTBB{});
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return vtkm::cont::testing::Testing::Run(
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TestingCellLocatorUniformGrid<vtkm::cont::DeviceAdapterTagTBB>());
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}
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@ -25,6 +25,7 @@ set(headers
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TestingArrayHandles.h
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TestingArrayHandleVirtualCoordinates.h
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TestingCellLocatorTwoLevelUniformGrid.h
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TestingCellLocatorUniformGrid.h
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TestingColorTable.h
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TestingComputeRange.h
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TestingDeviceAdapter.h
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153
vtkm/cont/testing/TestingCellLocatorUniformGrid.h
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153
vtkm/cont/testing/TestingCellLocatorUniformGrid.h
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//============================================================================
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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 2017 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2017 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_cont_testing_TestingCellLocatorUniformGrid_h
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#define vtk_m_cont_testing_TestingCellLocatorUniformGrid_h
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#include <random>
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#include <string>
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#include <vtkm/cont/CellLocatorUniformGrid.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/testing/MakeTestDataSet.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <vtkm/exec/CellLocatorUniformGrid.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/WorkletMapField.h>
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class LocatorWorklet : public vtkm::worklet::WorkletMapField
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{
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public:
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LocatorWorklet(vtkm::Bounds& bounds_, vtkm::Vec<vtkm::Id, 3>& dims_)
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: bounds(bounds_)
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, dims(dims_)
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{
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}
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using ControlSignature = void(FieldIn<> pointIn,
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ExecObject locator,
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FieldOut<> cellId,
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FieldOut<> parametric,
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FieldOut<> match);
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using ExecutionSignature = void(_1, _2, _3, _4, _5);
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template <typename PointType>
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VTKM_EXEC vtkm::Id CalculateCellId(const PointType& point) const
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{
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if (!bounds.Contains(point))
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return -1;
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vtkm::Vec<vtkm::Id, 3> logical;
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logical[0] = static_cast<vtkm::Id>(vtkm::Floor((point[0] / bounds.X.Length()) * (dims[0] - 1)));
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logical[1] = static_cast<vtkm::Id>(vtkm::Floor((point[1] / bounds.Y.Length()) * (dims[1] - 1)));
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logical[2] = static_cast<vtkm::Id>(vtkm::Floor((point[2] / bounds.Z.Length()) * (dims[2] - 1)));
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return logical[2] * (dims[0] - 1) * (dims[1] - 1) + logical[1] * (dims[0] - 1) + logical[0];
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}
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template <typename PointType, typename LocatorType>
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VTKM_EXEC void operator()(const PointType& pointIn,
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const LocatorType& locator,
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vtkm::Id& cellId,
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PointType& parametric,
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bool& match) const
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{
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vtkm::Id calculated = CalculateCellId(pointIn);
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locator->FindCell(pointIn, cellId, parametric, (*this));
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match = (calculated == cellId);
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}
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private:
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vtkm::Bounds bounds;
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vtkm::Vec<vtkm::Id, 3> dims;
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};
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template <typename DeviceAdapter>
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class TestingCellLocatorUniformGrid
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{
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public:
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using Algorithm = vtkm::cont::DeviceAdapterAlgorithm<DeviceAdapter>;
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void TestTest() const
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{
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vtkm::cont::DataSet dataset = vtkm::cont::testing::MakeTestDataSet().Make3DUniformDataSet1();
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vtkm::cont::CoordinateSystem coords = dataset.GetCoordinateSystem();
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vtkm::cont::DynamicCellSet cellSet = dataset.GetCellSet();
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vtkm::Bounds bounds = coords.GetBounds();
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std::cout << "X bounds : " << bounds.X.Min << " to " << bounds.X.Max << std::endl;
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std::cout << "Y bounds : " << bounds.Y.Min << " to " << bounds.Y.Max << std::endl;
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std::cout << "Z bounds : " << bounds.Z.Min << " to " << bounds.Z.Max << std::endl;
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using StructuredType = vtkm::cont::CellSetStructured<3>;
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vtkm::Vec<vtkm::Id, 3> dims =
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cellSet.Cast<StructuredType>().GetSchedulingRange(vtkm::TopologyElementTagPoint());
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std::cout << "Dimensions of dataset : " << dims << std::endl;
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vtkm::cont::CellLocatorUniformGrid locator;
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locator.SetCoordinates(coords);
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locator.SetCellSet(cellSet);
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locator.Update();
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// Generate some sample points.
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using PointType = vtkm::Vec<vtkm::FloatDefault, 3>;
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std::vector<PointType> pointsVec;
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std::default_random_engine dre;
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std::uniform_real_distribution<vtkm::Float32> inBounds(0.0f, 4.0f);
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for (size_t i = 0; i < 10; i++)
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{
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PointType point = vtkm::make_Vec(inBounds(dre), inBounds(dre), inBounds(dre));
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pointsVec.push_back(point);
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}
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std::uniform_real_distribution<vtkm::Float32> outBounds(4.0f, 5.0f);
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for (size_t i = 0; i < 5; i++)
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{
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PointType point = vtkm::make_Vec(outBounds(dre), outBounds(dre), outBounds(dre));
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pointsVec.push_back(point);
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}
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vtkm::cont::ArrayHandle<PointType> points = vtkm::cont::make_ArrayHandle(pointsVec);
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// Query the points using the locators.
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vtkm::cont::ArrayHandle<vtkm::Id> cellIds;
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vtkm::cont::ArrayHandle<PointType> parametric;
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vtkm::cont::ArrayHandle<bool> match;
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LocatorWorklet worklet(bounds, dims);
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vtkm::worklet::DispatcherMapField<LocatorWorklet, DeviceAdapter> dispather(worklet);
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dispather.Invoke(points, locator, cellIds, parametric, match);
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auto matchPortal = match.GetPortalConstControl();
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for (vtkm::Id index = 0; index < match.GetNumberOfValues(); index++)
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{
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VTKM_TEST_ASSERT(matchPortal.Get(index), "Points do not match");
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}
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std::cout << "Test finished successfully." << std::endl;
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}
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void operator()() const
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{
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vtkm::cont::GetGlobalRuntimeDeviceTracker().ForceDevice(DeviceAdapter());
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this->TestTest();
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}
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};
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#endif
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96
vtkm/exec/CellLocatorUniformGrid.h
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96
vtkm/exec/CellLocatorUniformGrid.h
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#ifndef vtkm_exec_celllocatoruniformgrid_h
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#define vtkm_exec_celllocatoruniformgrid_h
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#include <vtkm/Bounds.h>
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#include <vtkm/TopologyElementTag.h>
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#include <vtkm/Types.h>
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#include <vtkm/VecFromPortalPermute.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/exec/CellInside.h>
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#include <vtkm/exec/CellLocator.h>
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#include <vtkm/exec/ParametricCoordinates.h>
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namespace vtkm
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{
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namespace exec
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{
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template <typename DeviceAdapter>
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class CellLocatorUniformGrid : public vtkm::exec::CellLocator
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{
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public:
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VTKM_CONT
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CellLocatorUniformGrid(const vtkm::Bounds& bounds,
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const vtkm::Vec<vtkm::Id, 3>& dims,
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const vtkm::Vec<vtkm::FloatDefault, 3> rangeTransform,
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const vtkm::Id planeSize,
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const vtkm::Id rowSize,
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const vtkm::cont::CellSetStructured<3>& cellSet,
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const vtkm::cont::ArrayHandleVirtualCoordinates& coords,
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DeviceAdapter)
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: Bounds(bounds)
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, Dims(dims)
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, RangeTransform(rangeTransform)
|
||||
, PlaneSize(planeSize)
|
||||
, RowSize(rowSize)
|
||||
{
|
||||
CellSet = cellSet.PrepareForInput(DeviceAdapter(), FromType(), ToType());
|
||||
Coords = coords.PrepareForInput(DeviceAdapter());
|
||||
}
|
||||
|
||||
VTKM_EXEC
|
||||
void FindCell(const vtkm::Vec<vtkm::FloatDefault, 3>& point,
|
||||
vtkm::Id& cellId,
|
||||
vtkm::Vec<vtkm::FloatDefault, 3>& parametric,
|
||||
const vtkm::exec::FunctorBase& worklet) const override
|
||||
{
|
||||
if (!Bounds.Contains(point))
|
||||
{
|
||||
cellId = -1;
|
||||
return;
|
||||
}
|
||||
// Get the Cell Id from the point.
|
||||
vtkm::Vec<vtkm::FloatDefault, 3> relative;
|
||||
relative[0] = static_cast<vtkm::FloatDefault>((point[0] - Bounds.X.Min) * RangeTransform[0]);
|
||||
relative[1] = static_cast<vtkm::FloatDefault>((point[1] - Bounds.Y.Min) * RangeTransform[1]);
|
||||
relative[2] = static_cast<vtkm::FloatDefault>((point[2] - Bounds.Z.Min) * RangeTransform[2]);
|
||||
vtkm::Vec<vtkm::Id, 3> logicalCell;
|
||||
logicalCell[0] = static_cast<vtkm::Id>(vtkm::Floor(relative[0]));
|
||||
logicalCell[1] = static_cast<vtkm::Id>(vtkm::Floor(relative[1]));
|
||||
logicalCell[2] = static_cast<vtkm::Id>(vtkm::Floor(relative[2]));
|
||||
// Get the actual cellId, from the logical cell index of the cell
|
||||
cellId = logicalCell[2] * PlaneSize + logicalCell[1] * RowSize + logicalCell[0];
|
||||
|
||||
bool success = false;
|
||||
using IndicesType = typename CellSetPortal::IndicesType;
|
||||
IndicesType cellPointIndices = CellSet.GetIndices(cellId);
|
||||
vtkm::VecFromPortalPermute<IndicesType, CoordsPortal> cellPoints(&cellPointIndices, Coords);
|
||||
auto cellShape = CellSet.GetCellShape(cellId);
|
||||
// Get Parametric Coordinates from the cell, for the point.
|
||||
parametric = vtkm::exec::WorldCoordinatesToParametricCoordinates(
|
||||
cellPoints, point, cellShape, success, worklet);
|
||||
}
|
||||
|
||||
private:
|
||||
using FromType = vtkm::TopologyElementTagPoint;
|
||||
using ToType = vtkm::TopologyElementTagCell;
|
||||
using CellSetPortal = typename vtkm::cont::CellSetStructured<
|
||||
3>::template ExecutionTypes<DeviceAdapter, FromType, ToType>::ExecObjectType;
|
||||
using CoordsPortal = typename vtkm::cont::ArrayHandleVirtualCoordinates::template ExecutionTypes<
|
||||
DeviceAdapter>::PortalConst;
|
||||
|
||||
vtkm::Bounds Bounds;
|
||||
vtkm::Vec<vtkm::Id, 3> Dims;
|
||||
vtkm::Vec<vtkm::FloatDefault, 3> RangeTransform;
|
||||
vtkm::Id PlaneSize;
|
||||
vtkm::Id RowSize;
|
||||
CellSetPortal CellSet;
|
||||
CoordsPortal Coords;
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
#endif //vtkm_exec_celllocatoruniformgrid_h
|
Loading…
Reference in New Issue
Block a user