mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 11:05:44 +00:00
128 lines
4.5 KiB
C++
128 lines
4.5 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//
|
|
// Copyright 2014 Sandia Corporation.
|
|
// Copyright 2014 UT-Battelle, LLC.
|
|
// Copyright 2014 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
|
|
// the U.S. Government retains certain rights in this software.
|
|
//
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//============================================================================
|
|
|
|
#include <vtkm/worklet/IsosurfaceUniformGrid.h>
|
|
#include <vtkm/worklet/DispatcherMapField.h>
|
|
|
|
#include <vtkm/cont/CellSetExplicit.h>
|
|
#include <vtkm/cont/DataSet.h>
|
|
|
|
#include <vtkm/cont/testing/Testing.h>
|
|
|
|
#include <vector>
|
|
|
|
namespace {
|
|
|
|
class TangleField : public vtkm::worklet::WorkletMapField
|
|
{
|
|
public:
|
|
typedef void ControlSignature(FieldIn<IdType> vertexId, FieldOut<Scalar> v);
|
|
typedef void ExecutionSignature(_1, _2);
|
|
typedef _1 InputDomain;
|
|
|
|
const vtkm::Id xdim, ydim, zdim;
|
|
const float xmin, ymin, zmin, xmax, ymax, zmax;
|
|
const vtkm::Id cellsPerLayer;
|
|
|
|
VTKM_CONT_EXPORT
|
|
TangleField(const vtkm::Id3 dims, const float mins[3], const float maxs[3]) : xdim(dims[0]), ydim(dims[1]), zdim(dims[2]),
|
|
xmin(mins[0]), ymin(mins[1]), zmin(mins[2]), xmax(maxs[0]), ymax(maxs[1]), zmax(maxs[2]), cellsPerLayer((xdim) * (ydim)) { };
|
|
|
|
VTKM_EXEC_EXPORT
|
|
void operator()(const vtkm::Id &vertexId, vtkm::Float32 &v) const
|
|
{
|
|
const vtkm::Id x = vertexId % (xdim);
|
|
const vtkm::Id y = (vertexId / (xdim)) % (ydim);
|
|
const vtkm::Id z = vertexId / cellsPerLayer;
|
|
|
|
const float fx = static_cast<float>(x) / static_cast<float>(xdim-1);
|
|
const float fy = static_cast<float>(y) / static_cast<float>(xdim-1);
|
|
const float fz = static_cast<float>(z) / static_cast<float>(xdim-1);
|
|
|
|
const vtkm::Float32 xx = 3.0f*(xmin+(xmax-xmin)*(fx));
|
|
const vtkm::Float32 yy = 3.0f*(ymin+(ymax-ymin)*(fy));
|
|
const vtkm::Float32 zz = 3.0f*(zmin+(zmax-zmin)*(fz));
|
|
|
|
v = (xx*xx*xx*xx - 5.0f*xx*xx + yy*yy*yy*yy - 5.0f*yy*yy + zz*zz*zz*zz - 5.0f*zz*zz + 11.8f) * 0.2f + 0.5f;
|
|
}
|
|
};
|
|
|
|
|
|
vtkm::cont::DataSet MakeIsosurfaceTestDataSet(vtkm::Id3 dims)
|
|
{
|
|
vtkm::cont::DataSet dataSet;
|
|
|
|
const vtkm::Id3 vdims(dims[0] + 1, dims[1] + 1, dims[2] + 1);
|
|
const vtkm::Id dim3 = dims[0]*dims[1]*dims[2];
|
|
|
|
float mins[3] = {-1.0f, -1.0f, -1.0f};
|
|
float maxs[3] = {1.0f, 1.0f, 1.0f};
|
|
|
|
vtkm::cont::ArrayHandle<vtkm::Float32> fieldArray;
|
|
vtkm::cont::ArrayHandleCounting<vtkm::Id> vertexCountImplicitArray(0, vdims[0]*vdims[1]*vdims[2]);
|
|
vtkm::worklet::DispatcherMapField<TangleField> tangleFieldDispatcher(TangleField(vdims, mins, maxs));
|
|
tangleFieldDispatcher.Invoke(vertexCountImplicitArray, fieldArray);
|
|
|
|
vtkm::cont::ArrayHandleUniformPointCoordinates coordinates(vdims);
|
|
dataSet.AddCoordinateSystem(
|
|
vtkm::cont::CoordinateSystem("coordinates", 1, coordinates));
|
|
|
|
dataSet.AddField(vtkm::cont::Field("nodevar", 1, vtkm::cont::Field::ASSOC_POINTS, fieldArray));
|
|
|
|
static const vtkm::IdComponent ndim = 3;
|
|
vtkm::cont::CellSetStructured<ndim> cellSet("cells");
|
|
cellSet.SetPointDimensions(vdims);
|
|
dataSet.AddCellSet(cellSet);
|
|
|
|
return dataSet;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
void TestIsosurfaceUniformGrid()
|
|
{
|
|
std::cout << "Testing IsosurfaceUniformGrid Filter" << std::endl;
|
|
|
|
vtkm::Id3 dims(4,4,4);
|
|
vtkm::cont::DataSet dataSet = MakeIsosurfaceTestDataSet(dims);
|
|
|
|
typedef VTKM_DEFAULT_DEVICE_ADAPTER_TAG DeviceAdapter;
|
|
|
|
vtkm::worklet::IsosurfaceFilterUniformGrid<vtkm::Float32,
|
|
DeviceAdapter> isosurfaceFilter(dims, dataSet);
|
|
|
|
vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Float32,3> > verticesArray, normalsArray;
|
|
vtkm::cont::ArrayHandle<vtkm::Float32> scalarsArray;
|
|
isosurfaceFilter.Run(0.5,
|
|
dataSet.GetField("nodevar").GetData(),
|
|
verticesArray,
|
|
normalsArray,
|
|
scalarsArray);
|
|
|
|
VTKM_TEST_ASSERT(test_equal(verticesArray.GetNumberOfValues(), 480),
|
|
"Wrong result for Isosurface filter");
|
|
}
|
|
|
|
int UnitTestIsosurfaceUniformGrid(int, char *[])
|
|
{
|
|
return vtkm::cont::testing::Testing::Run(TestIsosurfaceUniformGrid);
|
|
}
|