[Cleanup] Move gravity to parset

src/one-body-sample.cc

@@ -98,7 +98,7 @@ int main(int argc, char *argv[]) {
     auto const shearViscosity = parset.get<double>("body.shearViscosity");
     auto const bulkViscosity = parset.get<double>("body.bulkViscosity");
     auto const density = parset.get<double>("body.density");
-    double const gravity = 9.81;
+    auto const gravity = parset.get<double>("gravity");
 
     // {{{ Set up grid
     using Grid = Dune::ALUGrid<dims, dims, Dune::simplex, Dune::nonconforming>;

src/one-body-sample.parset

 # -*- mode:conf -*-
+gravity         = 9.81
+
 [io]
 printProgress = false
 writeVTK      = false