1 files changed, 84 insertions, 0 deletions
diff --git a/Carpet/CarpetRegrid/src/moving.cc b/Carpet/CarpetRegrid/src/moving.cc
new file mode 100644
index 000000000..5e5287b86
--- /dev/null
+++ b/Carpet/CarpetRegrid/src/moving.cc
@@ -0,0 +1,84 @@
+#include <cassert>
+#include <cmath>
+
+#include "cctk.h"
+#include "cctk_Parameters.h"
+
+#include "gh.hh"
+
+#include "carpet.hh"
+#include "regrid.hh"
+
+extern "C" {
+  static const char* rcsid = "$Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetRegrid/src/moving.cc,v 1.5 2004/08/02 11:42:20 schnetter Exp $";
+  CCTK_FILEVERSION(Carpet_CarpetRegrid_moving_cc);
+}
+
+
+
+namespace CarpetRegrid {
+  
+  using namespace std;
+  using namespace Carpet;
+  
+  
+  
+  int Moving (cGH const * const cctkGH,
+              gh<dim> const & hh,
+              gh<dim>::rexts  & bbsss,
+              gh<dim>::rbnds  & obss,
+              gh<dim>::rprocs & pss)
+  {
+    DECLARE_CCTK_ARGUMENTS;
+    DECLARE_CCTK_PARAMETERS;
+    
+    assert (refinement_levels >= 1);
+    
+    assert (bbsss.size() >= 1);
+    
+    bbsss.resize (refinement_levels);
+    obss.resize (refinement_levels);
+    pss.resize (refinement_levels);
+    
+    bvect const symmetric (symmetry_x, symmetry_y, symmetry_z);
+    bbvect const ob (false);
+    
+    assert (! smart_outer_boundaries);
+    
+    for (size_t rl=1; rl<bbsss.size(); ++rl) {
+      
+      // calculate new extent
+      CCTK_REAL const argument = 2*M_PI * moving_circle_frequency * cctk_time;
+      rvect const pos
+        (moving_centre_x + moving_circle_radius * cos(argument),
+         moving_centre_y + moving_circle_radius * sin(argument),
+         moving_centre_z);
+      CCTK_REAL const radius = moving_region_radius / ipow(reffact, rl-1);
+      
+      rvect const rlb (symmetric.ifthen (rvect(0),      pos - rvect(radius)));
+      rvect const rub (symmetric.ifthen (rvect(radius), pos + rvect(radius)));
+      
+      vector<ibbox> bbs;
+      gh<dim>::cbnds obs;
+      
+      ManualCoordinates_OneLevel
+        (cctkGH, hh, rl, refinement_levels, rlb, rub, ob, bbs, obs);
+      
+      // make multiprocessor aware
+      gh<dim>::cprocs ps;
+      SplitRegions (cctkGH, bbs, obs, ps);
+      
+      // make multigrid aware
+      vector<vector<ibbox> > bbss;
+      MakeMultigridBoxes (cctkGH, bbs, obs, bbss);
+      
+      bbsss.at(rl) = bbss;
+      obss.at(rl) = obs;
+      pss.at(rl) = ps;
+      
+    } // for rl
+    
+    return 1;
+  }
+  
+} // namespace CarpetRegrid