vtk-m/vtkm/worklet/testing/UnitTestPointElevation.cxx
Kenneth Moreland 713cf4228a Make it not possible to create a cell set without specifying num points
The CellSetExplicit and CellSetSingleType classes have an ivar that
marks the number of points. There were several instances of code
creating cell sets without specifying the number of points. This can be
very bad if subsequent code needs that information.
2017-01-12 13:02:10 -07:00

112 lines
3.6 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/PointElevation.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 {
vtkm::cont::DataSet MakePointElevationTestDataSet()
{
vtkm::cont::DataSet dataSet;
std::vector<vtkm::Vec<vtkm::Float32,3> > coordinates;
const vtkm::Id dim = 5;
for (vtkm::Id j = 0; j < dim; ++j)
{
vtkm::Float32 z = static_cast<vtkm::Float32>(j) /
static_cast<vtkm::Float32>(dim - 1);
for (vtkm::Id i = 0; i < dim; ++i)
{
vtkm::Float32 x = static_cast<vtkm::Float32>(i) /
static_cast<vtkm::Float32>(dim - 1);
vtkm::Float32 y = (x*x + z*z)/2.0f;
coordinates.push_back(vtkm::make_Vec(x,y,z));
}
}
vtkm::Id numCells = (dim - 1) * (dim - 1);
dataSet.AddCoordinateSystem(
vtkm::cont::CoordinateSystem("coordinates", coordinates));
vtkm::cont::CellSetExplicit<> cellSet("cells");
cellSet.PrepareToAddCells(numCells, numCells * 4);
for (vtkm::Id j = 0; j < dim - 1; ++j)
{
for (vtkm::Id i = 0; i < dim - 1; ++i)
{
cellSet.AddCell(vtkm::CELL_SHAPE_QUAD,
4,
vtkm::make_Vec<vtkm::Id>(j * dim + i,
j * dim + i + 1,
(j + 1) * dim + i + 1,
(j + 1) * dim + i));
}
}
cellSet.CompleteAddingCells(vtkm::Id(coordinates.size()));
dataSet.AddCellSet(cellSet);
return dataSet;
}
}
void TestPointElevation()
{
std::cout << "Testing PointElevation Worklet" << std::endl;
vtkm::cont::DataSet dataSet = MakePointElevationTestDataSet();
vtkm::cont::ArrayHandle<vtkm::Float32> result;
vtkm::worklet::PointElevation pointElevationWorklet;
pointElevationWorklet.SetLowPoint(vtkm::make_Vec<vtkm::Float64>(0.0, 0.0, 0.0));
pointElevationWorklet.SetHighPoint(vtkm::make_Vec<vtkm::Float64>(0.0, 1.0, 0.0));
pointElevationWorklet.SetRange(0.0, 2.0);
vtkm::worklet::DispatcherMapField<vtkm::worklet::PointElevation>
dispatcher(pointElevationWorklet);
dispatcher.Invoke(dataSet.GetCoordinateSystem(),
result);
vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Float32,3> > coordinates;
dataSet.GetCoordinateSystem().GetData().CopyTo(coordinates);
for (vtkm::Id i = 0; i < result.GetNumberOfValues(); ++i)
{
VTKM_TEST_ASSERT(
test_equal(coordinates.GetPortalConstControl().Get(i)[1] * 2.0,
result.GetPortalConstControl().Get(i)),
"Wrong result for PointElevation worklet");
}
}
int UnitTestPointElevation(int, char *[])
{
return vtkm::cont::testing::Testing::Run(TestPointElevation);
}