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Fixing default sample distance

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This commit is contained in:
mclarsen 2018-06-06 15:08:11 -07:00
parent 0200fcbf05
commit 75f911cf77
1 changed files with 11 additions and 2 deletions
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13
vtkm/rendering/MapperConnectivity.cxx
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@ -81,10 +81,19 @@ void MapperConnectivity::RenderCells(const vtkm::cont::DynamicCellSet& cellset,
const vtkm::Range& vtkmNotUsed(scalarRange))
{
vtkm::rendering::ConnectivityProxy tracerProxy(cellset, coords, scalarField);
if (SampleDistance != -1.f)
if (SampleDistance == -1.f)
{
tracerProxy.SetSampleDistance(SampleDistance);
// set a default distance
vtkm::Bounds bounds = coords.GetBounds();
vtkm::Float64 x2 = bounds.X.Length() * bounds.X.Length();
vtkm::Float64 y2 = bounds.Y.Length() * bounds.Y.Length();
vtkm::Float64 z2 = bounds.Z.Length() * bounds.Z.Length();
vtkm::Float64 length = vtkm::Sqrt(x2 + y2 + z2);
;
constexpr vtkm::Float64 defaultSamples = 200.;
SampleDistance = static_cast<vtkm::Float32>(length / defaultSamples);
}
tracerProxy.SetSampleDistance(SampleDistance);
tracerProxy.SetColorMap(ColorMap);
tracerProxy.Trace(camera, CanvasRT);
}