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Add uniformat grid contour regression tests

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Fixes #576

The Y-axis flying edge bug(s) had been fixed in !2197, and so
now we can test uniform data
This commit is contained in:
nadavi 2020-10-14 23:00:15 +00:00 committed by Robert Maynard
parent 3f020101c4
commit a31293da7f
3 changed files with 79 additions and 0 deletions
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3
data/baseline/contour-tangle.png Normal file
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size 10883

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data/baseline/contour-uniform.png Normal file
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version https://git-lfs.github.com/spec/v1
oid sha256:8c22f2d4e19191ff05d9dc52ea740269fcdfe129b9d100ea8db6d4cbb989b161
size 9652

73
vtkm/filter/testing/RegressionTestContourFilter.cxx
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@ -10,10 +10,13 @@
#include <vtkm/Math.h>
#include <vtkm/cont/DataSet.h>
#include <vtkm/cont/testing/MakeTestDataSet.h>
#include <vtkm/cont/testing/Testing.h>
#include <vtkm/filter/CleanGrid.h>
#include <vtkm/filter/Contour.h>
#include <vtkm/source/Tangle.h>
#include <vtkm/io/VTKDataSetReader.h>
#include <vtkm/rendering/CanvasRayTracer.h>
@ -56,8 +59,78 @@ void TestContourFilterWedge()
VTKM_TEST_ASSERT(test_equal_images(view, "contour-wedge.png"));
}
void TestContourFilterUniform()
{
std::cout << "Generate Image for Contour filter on a uniform grid" << std::endl;
vtkm::cont::ColorTable colorTable(
{ 0, 1 }, { 0.20f, 0.80f, .20f }, { .20f, .80f, .201f }, vtkm::ColorSpace::RGB);
using M = vtkm::rendering::MapperRayTracer;
using C = vtkm::rendering::CanvasRayTracer;
using V3 = vtkm::rendering::View3D;
vtkm::cont::testing::MakeTestDataSet maker;
vtkm::cont::DataSet inputData = maker.Make3DUniformDataSet0();
std::string fieldName = "pointvar";
VTKM_TEST_ASSERT(inputData.HasField(fieldName));
vtkm::filter::Contour contour;
contour.SetGenerateNormals(false);
contour.SetMergeDuplicatePoints(true);
contour.SetIsoValue(0, 100.0);
contour.SetActiveField(fieldName);
contour.SetFieldsToPass(fieldName);
vtkm::cont::DataSet result = contour.Execute(inputData);
result.PrintSummary(std::cout);
C canvas(512, 512);
M mapper;
vtkm::rendering::Scene scene;
auto view = vtkm::rendering::testing::GetViewPtr<M, C, V3>(
result, "pointvar", canvas, mapper, scene, colorTable);
//Y axis Flying Edge algorithm has subtle differences at a couple of boundaries
VTKM_TEST_ASSERT(test_equal_images(view, "contour-uniform.png"));
}
void TestContourFilterTangle()
{
std::cout << "Generate Image for Contour filter on a uniform tangle grid" << std::endl;
vtkm::cont::ColorTable colorTable(
{ 0, 1 }, { 0.20f, 0.80f, .20f }, { .20f, .80f, .201f }, vtkm::ColorSpace::RGB);
using M = vtkm::rendering::MapperRayTracer;
using C = vtkm::rendering::CanvasRayTracer;
using V3 = vtkm::rendering::View3D;
vtkm::Id3 dims(4, 4, 4);
vtkm::source::Tangle tangle(dims);
vtkm::cont::DataSet dataSet = tangle.Execute();
vtkm::filter::Contour contour;
contour.SetGenerateNormals(true);
contour.SetIsoValue(0, 1);
contour.SetActiveField("nodevar");
contour.SetFieldsToPass("nodevar");
auto result = contour.Execute(dataSet);
result.PrintSummary(std::cout);
C canvas(512, 512);
M mapper;
vtkm::rendering::Scene scene;
auto view = vtkm::rendering::testing::GetViewPtr<M, C, V3>(
result, "nodevar", canvas, mapper, scene, colorTable);
//Y axis Flying Edge algorithm has subtle differences at a couple of boundaries
VTKM_TEST_ASSERT(test_equal_images(view, "contour-tangle.png"));
}
void TestContourFilter()
{
TestContourFilterUniform();
TestContourFilterTangle();
TestContourFilterWedge();
}
} // namespace