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https://gitlab.kitware.com/vtk/vtk-m
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7f94eafc9c
Providing these types tends to "lock in" the precision of the algorithms used in VTK-m. Since we are using templating anyway, our templates should be generic enough to handle difference precision in the data. Usually the appropriate type can be determined by the data provided. In the case where there is no hint on the precision of data to use (for example, in the code that provides coordinates for uniform data), there is a vtkm::FloatDefault.
90 lines
3.2 KiB
C++
90 lines
3.2 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 Sandia Corporation.
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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-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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#include <vtkm/cont/ArrayHandleUniformPointCoordinates.h>
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#include <vtkm/cont/testing/Testing.h>
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namespace {
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typedef vtkm::Vec<vtkm::FloatDefault, 3> Vector3;
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const vtkm::Id3 MIN_VALUES(-5, 8, 40);
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const vtkm::Id3 MAX_VALUES(10, 25, 44);
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const vtkm::Id3 POINT_DIMS(16, 18, 5);
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const vtkm::Id NUM_POINTS = 1440;
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const Vector3 ORIGIN(30, -3, -14);
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const Vector3 SPACING(10, 1, 0.1f);
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const Vector3 LOWER_LEFT(-20, 5, -10); // MIN_VALUES*SPACING + ORIGIN
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void TestArrayHandleUniformPointCoordinates()
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{
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std::cout << "Creating ArrayHandleUniformPointCoordinates" << std::endl;
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vtkm::cont::ArrayHandleUniformPointCoordinates arrayHandle(
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vtkm::Extent3(MIN_VALUES, MAX_VALUES), ORIGIN, SPACING);
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VTKM_TEST_ASSERT(arrayHandle.GetNumberOfValues() == NUM_POINTS,
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"Array computed wrong number of points.");
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std::cout << "Getting array portal." << std::endl;
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vtkm::cont::internal::ArrayPortalUniformPointCoordinates portal =
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arrayHandle.GetPortalConstControl();
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VTKM_TEST_ASSERT(portal.GetNumberOfValues() == NUM_POINTS,
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"Portal has wrong number of points.");
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VTKM_TEST_ASSERT(portal.GetRange3() == POINT_DIMS,
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"Portal range is wrong.");
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std::cout << "Checking computed values of portal." << std::endl;
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Vector3 expectedValue;
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vtkm::Id flatIndex = 0;
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vtkm::Id3 blockIndex;
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expectedValue[2] = LOWER_LEFT[2];
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for (blockIndex[2] = 0; blockIndex[2] < POINT_DIMS[2]; blockIndex[2]++)
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{
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expectedValue[1] = LOWER_LEFT[1];
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for (blockIndex[1] = 0; blockIndex[1] < POINT_DIMS[1]; blockIndex[1]++)
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{
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expectedValue[0] = LOWER_LEFT[0];
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for (blockIndex[0] = 0; blockIndex[0] < POINT_DIMS[0]; blockIndex[0]++)
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{
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VTKM_TEST_ASSERT(test_equal(expectedValue, portal.Get(flatIndex)),
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"Got wrong value for flat index.");
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VTKM_TEST_ASSERT(test_equal(expectedValue, portal.Get(blockIndex)),
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"Got wrong value for block index.");
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flatIndex++;
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expectedValue[0] += SPACING[0];
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}
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expectedValue[1] += SPACING[1];
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}
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expectedValue[2] += SPACING[2];
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}
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}
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} // anonymous namespace
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int UnitTestArrayHandleUniformPointCoordinates(int, char *[])
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{
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return vtkm::cont::testing::Testing::Run(
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TestArrayHandleUniformPointCoordinates);
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}
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