fix some examples

examples/polyline_archimedean_helix/PolyLineArchimedeanHelix.cxx

@@ -67,7 +67,10 @@ void TubeThatSpiral(vtkm::FloatDefault radius, vtkm::Id numLineSegments, vtkm::I
   // This generates a new pointset, and new cell set.
   vtkm::cont::ArrayHandle<vtkm::Vec3f> tubePoints;
   vtkm::cont::CellSetSingleType<> tubeCells;
-  tubeWorklet.Run(ds.GetCoordinateSystem(), ds.GetCellSet(), tubePoints, tubeCells);
+  tubeWorklet.Run(ds.GetCoordinateSystem().GetData().Cast<vtkm::cont::ArrayHandle<vtkm::Vec3f>>(),
+                  ds.GetCellSet(),
+                  tubePoints,
+                  tubeCells);
 
   vtkm::cont::DataSet tubeDataset;
   tubeDataset.AddCoordinateSystem(vtkm::cont::CoordinateSystem("coords", tubePoints));

examples/temporal_advection/TemporalAdvection.cxx

@@ -82,7 +82,7 @@ int main(int argc, char** argv)
   pathlineFilter.SetNextDataSet(ds2);
   // 2. The current and next times, these times will be used to interpolate
   //    the velocities for particle positions in space and time.
-  pathlineFilter.SetCurrentTime(time1);
+  pathlineFilter.SetPreviousTime(time1);
   pathlineFilter.SetNextTime(time2);
   // 3. Maximum number of steps the particle is allowed to take until termination.
   pathlineFilter.SetNumberOfSteps(numSteps);