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Demo.cxx has not been updated in a while (pre-ResultDataSet change).

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This commit is contained in:
Mark Kim 2016-08-02 13:22:02 -04:00
parent e8b17eb947
commit 293ba569e7
1 changed files with 36 additions and 28 deletions
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64
examples/demo/Demo.cxx
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@ -65,57 +65,65 @@ int main(int argc, char* argv[])
fieldName = "SCALARS:pointvar";
}
typedef vtkm::rendering::MapperGL< > Mapper;
typedef vtkm::rendering::MapperGL<VTKM_DEFAULT_DEVICE_ADAPTER_TAG> Mapper;
typedef vtkm::rendering::CanvasOSMesa Canvas;
// Set up a camera for rendering the input data
const vtkm::cont::CoordinateSystem coords = inputData.GetCoordinateSystem();
Mapper mapper;
vtkm::rendering::Camera3D &camera = mapper.GetCamera();
vtkm::Float64 coordsBounds[6];
vtkm::rendering::Camera camera = vtkm::rendering::Camera();
//Set3DView
vtkm::Bounds coordsBounds = coords.GetBounds(VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
coords.GetBounds(coordsBounds,VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
vtkm::Vec<vtkm::Float32,3> totalExtent;
totalExtent[0] = vtkm::Float32(coordsBounds[1] - coordsBounds[0]);
totalExtent[1] = vtkm::Float32(coordsBounds[3] - coordsBounds[2]);
totalExtent[2] = vtkm::Float32(coordsBounds[5] - coordsBounds[4]);
vtkm::Float32 mag = vtkm::Magnitude(totalExtent);
vtkm::Normalize(totalExtent);
camera.LookAt = totalExtent * (mag * .5f);
camera.Up = vtkm::make_Vec(0.f, 1.f, 0.f);
camera.NearPlane = 1.f;
camera.FarPlane = 100.f;
camera.FieldOfView = 60.f;
camera.Height = 512;
camera.Width = 512;
camera.Position = totalExtent * (mag * 2.f);
camera.ResetToBounds(coordsBounds);
camera.Azimuth(45.0f);
camera.Elevation(45.0f);
// vtkm::Vec<vtkm::Float32,3> totalExtent;
// totalExtent[0] = vtkm::Float32(coordsBounds[1] - coordsBounds[0]);
// totalExtent[1] = vtkm::Float32(coordsBounds[3] - coordsBounds[2]);
// totalExtent[2] = vtkm::Float32(coordsBounds[5] - coordsBounds[4]);
// vtkm::Float32 mag = vtkm::Magnitude(totalExtent);
// vtkm::Normalize(totalExtent);
// camera.LookAt = totalExtent * (mag * .5f);
// camera.Up = vtkm::make_Vec(0.f, 1.f, 0.f);
// camera.NearPlane = 1.f;
// camera.FarPlane = 100.f;
// camera.FieldOfView = 60.f;
// camera.Height = 512;
// camera.Width = 512;
// camera.Position = totalExtent * (mag * 2.f);
vtkm::rendering::ColorTable colorTable("thermal");
mapper.SetActiveColorTable(colorTable);
mapper.SetCamera(camera);
//mapper.SetActiveColorTable(colorTable);
//mapper.SetCamera(camera);
// Create a scene for rendering the input data
vtkm::rendering::Scene3D scene;
vtkm::rendering::Scene scene;
vtkm::rendering::Color bg(0.2f, 0.2f, 0.2f, 1.0f);
vtkm::rendering::CanvasOSMesa surface(512,512,bg);
scene.Actors.push_back(vtkm::rendering::Actor(inputData.GetCellSet(),
vtkm::rendering::CanvasOSMesa canvas(512,512);
scene.AddActor(vtkm::rendering::Actor(inputData.GetCellSet(),
inputData.GetCoordinateSystem(),
inputData.GetField(fieldName),
colorTable));
// Create a view and use it to render the input data using OS Mesa
vtkm::rendering::View3D<Mapper, Canvas> view1(scene,
vtkm::rendering::View3D view(scene,
mapper,
surface,
canvas,
camera,
bg);
view1.Initialize();
view1.Paint();
view1.SaveAs("demo_input.pnm");
view.Initialize();
view.Paint();
view.SaveAs("demo_input.pnm");
// Create an isosurface filter
vtkm::filter::MarchingCubes filter;
filter.SetGenerateNormals(false);
filter.SetMergeDuplicatePoints(false);
filter.SetIsoValue(isovalue);
vtkm::filter::DataSetResult result = filter.Execute( inputData,
vtkm::filter::ResultDataSet result = filter.Execute( inputData,
inputData.GetField(fieldName) );
filter.MapFieldOntoOutput(result, inputData.GetField(fieldName));
vtkm::cont::DataSet& outputData = result.GetDataSet();