cleanup pvdwriter interface

dune/vtk/pvdwriter.hh

@@ -29,7 +29,7 @@ namespace Dune
     }
 
     /// Write the attached data to the file
-    void write (double time, std::string const& fn) const;
+    void writeTimestep (double time, std::string const& fn) const;
 
     /// Attach point data to the writer, \see VtkFunction for possible arguments
     template <class Function, class... Args>

dune/vtk/pvdwriter.impl.hh

@@ -9,7 +9,7 @@ namespace Dune {
 
 template <class W>
 void PvdWriter<W>
-  ::write (double time, std::string const& fn) const
+  ::writeTimestep (double time, std::string const& fn) const
 {
   auto p = filesystem::path(fn);
   auto name = p.stem();

dune/vtk/vtktimeserieswriter.hh

@@ -53,7 +53,7 @@ namespace Dune
     }
 
     /// Write the attached data to the file with \ref Vtk::FormatTypes and \ref Vtk::DataTypes
-    void writeTimestep (double time, std::string const& fn);
+    void writeTimestep (double time, std::string const& fn) const;
 
     /// Writes all timesteps to single timeseries file.
     // NOTE: requires an aforging call to \ref writeTimestep
@@ -79,10 +79,10 @@ namespace Dune
     VtkWriter vtkWriter_;
     filesystem::path tmpDir_;
 
-    bool initialized_ = false;
+    mutable bool initialized_ = false;
 
     // block size of attached data
-    std::vector<std::uint64_t> blocks_;
+    mutable std::vector<std::uint64_t> blocks_;
 
     mutable std::string filenameMesh_;
     mutable std::vector<std::pair<double, std::string>> timesteps_;

dune/vtk/vtktimeserieswriter.impl.hh

@@ -118,6 +118,7 @@ void VtkTimeseriesWriter<W>
     assert(ec == 0);
   }
   timesteps_.clear();
+  initialized_ = false;
 }
 
 } // end namespace Dune

src/pvdwriter.cc

@@ -44,7 +44,7 @@ void write (std::string prefix, GridView const& gridView)
   pvdWriter.addPointData(p1Analytic, "p1");
   pvdWriter.addCellData(p1Analytic, "p0");
   for (double t = 0.0; t < 10.0; t += 1.0) {
-    pvdWriter.write(t, prefix + "_" + std::to_string(GridView::dimensionworld) + "d_ascii.vtu");
+    pvdWriter.writeTimestep(t, prefix + "_" + std::to_string(GridView::dimensionworld) + "d_ascii.vtu");
   }
 }