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#include <cassert>
#include <cmath>
#include <cstring>
#include <sstream>
#include <vector>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "gh.hh"
#include "carpet.hh"
#include "regrid.hh"
namespace CarpetRegrid {
using namespace std;
using namespace Carpet;
int ManualCoordinateList (cGH const * const cctkGH,
gh const & hh,
gh::rregs & regss)
{
DECLARE_CCTK_PARAMETERS;
int ierr;
assert (refinement_levels >= 1);
// do nothing if the levels already exist
if (reflevel == refinement_levels && !tracking) return 0;
jjvect nboundaryzones, is_internal, is_staggered, shiftout;
ierr = GetBoundarySpecification
(2*dim, &nboundaryzones[0][0], &is_internal[0][0],
&is_staggered[0][0], &shiftout[0][0]);
assert (!ierr);
rvect physical_min, physical_max;
rvect interior_min, interior_max;
rvect exterior_min, exterior_max;
rvect base_spacing;
ierr = GetDomainSpecification
(dim, &physical_min[0], &physical_max[0],
&interior_min[0], &interior_max[0],
&exterior_min[0], &exterior_max[0], &base_spacing[0]);
assert (!ierr);
regss.resize (refinement_levels);
vector<vector<rbbox> > newbbss;
if (strcmp(coordinates, "") != 0) {
istringstream gp_str(coordinates);
try {
gp_str >> newbbss;
} catch (input_error) {
CCTK_WARN (0, "Could not parse parameter \"coordinates\"");
}
if (newbbss.size() >= spacereffacts.size()) {
CCTK_WARN (0, "Parameter \"coordinates\" defines too many refinement levels; at most Carpet::max_refinement_levels - 1 may be defined");
}
}
if ((int)newbbss.size() < refinement_levels-1) {
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"The parameter \"coordinates\" must contain at least \"refinement_levels-1\" (here: %d) levels", int(refinement_levels-1));
}
// Remove superfluous boxes
newbbss.resize (refinement_levels-1);
vector<vector<b2vect> > newobss;
if (smart_outer_boundaries) {
// TODO:
// assert (domain_from_coordbase);
newobss.resize(newbbss.size());
for (int rl=0; rl<(int)newobss.size(); ++rl) {
ivect const spacereffact = spacereffacts.at(rl+1);
assert (mglevel==0);
rvect const spacing =
base_spacing * ipow((CCTK_REAL)mgfact, basemglevel)
/ rvect(spacereffact);
ierr = ConvertFromPhysicalBoundary
(dim, &physical_min[0], &physical_max[0],
&interior_min[0], &interior_max[0],
&exterior_min[0], &exterior_max[0], &spacing[0]);
assert (!ierr);
newobss.at(rl).resize(newbbss.at(rl).size());
for (int c=0; c<(int)newobss.at(rl).size(); ++c) {
rvect lo = newbbss.at(rl).at(c).lower();
rvect up = newbbss.at(rl).at(c).upper();
rvect str = newbbss.at(rl).at(c).stride();
b2vect ob;
for (int d=0; d<dim; ++d) {
ob[0][d] = (abs(newbbss.at(rl).at(c).lower()[d] - physical_min[d])
< 1.0e-6 * spacing[d]);
if (ob[0][d]) {
lo[d] = exterior_min[d];
}
ob[1][d] = (abs(newbbss.at(rl).at(c).upper()[d] - physical_max[d])
< 1.0e-6 * base_spacing[d] / spacereffact[d]);
if (ob[1][d]) {
up[d] = exterior_max[d];
}
str[d] *= ipow((CCTK_REAL)mgfact, basemglevel);
}
newbbss.at(rl).at(c) = rbbox(lo, up, str);
newobss.at(rl).at(c) = ob;
} // for c
} // for rl
} else { // if not smart_outer_boundaries
vector<vector<bbvect> > newobss1;
if (strcmp(outerbounds, "") != 0) {
istringstream ob_str (outerbounds);
try {
ob_str >> newobss1;
} catch (input_error) {
CCTK_WARN (0, "Could not parse parameter \"outerbounds\"");
}
if (newobss1.size() >= spacereffacts.size()) {
CCTK_WARN (0, "Parameter \"outerbounds\" defines too many refinement levels; at most Carpet::max_refinement_levels - 1 may be defined");
}
bool good = newobss1.size() == newbbss.size();
if (good) {
for (int rl=0; rl<(int)newobss1.size(); ++rl) {
good = good and newobss1.at(rl).size() == newbbss.at(rl).size();
}
}
if (! good) {
cout << "coordinates: " << newbbss << endl;
cout << "outerbounds: " << newobss1 << endl;
CCTK_WARN (0, "The parameters \"outerbounds\" and \"coordinates\" must have the same structure");
}
newobss.resize(newobss1.size());
for (int rl=0; rl<(int)newobss.size(); ++rl) {
newobss.at(rl).resize(newobss1.at(rl).size());
for (int c=0; c<(int)newobss.at(rl).size(); ++c) {
newobss.at(rl).at(c) = xpose(newobss1.at(rl).at(c));
}
}
} else {
newobss.resize(newbbss.size());
for (int rl=0; rl<(int)newobss.size(); ++rl) {
newobss.at(rl).resize(newbbss.at(rl).size());
for (int c=0; c<(int)newobss.at(rl).size(); ++c) {
newobss.at(rl).at(c) = b2vect(false);
}
}
}
} // if not smart_outer_boundaries
for (int rl=1; rl<refinement_levels; ++rl) {
vector<region_t> regs;
regs.reserve (newbbss.at(rl-1).size());
for (int c=0; c<(int)newbbss.at(rl-1).size(); ++c) {
rbbox const & ext = newbbss.at(rl-1).at(c);
b2vect const & ob = newobss.at(rl-1).at(c);
// TODO:
// assert (domain_from_coordbase);
ivect const spacereffact = spacereffacts.at(rl);
rvect const spacing =
base_spacing * ipow(CCTK_REAL(mgfact), basemglevel)
/ rvect(spacereffact);
if (! all(abs(ext.stride() - spacing) < spacing * CCTK_REAL(1.0e-10))) {
assert (dim==3);
CCTK_VWarn (0, __LINE__, __FILE__, CCTK_THORNSTRING,
"The grid spacing on refinement level %d is incorrect. I expected [%g,%g,%g], but I found [%g,%g,%g].",
int(rl),
double(spacing[0]), double(spacing[1]), double(spacing[2]),
double(ext.stride()[0]), double(ext.stride()[1]), double(ext.stride()[2]));
}
assert (all(abs(ext.stride() - spacing)
< spacing * CCTK_REAL(1.0e-10)));
rvect offset = rvect(0);
if (c < num_offsets) {
if (rl >= offset_firstlevel) {
assert (dim==3);
offset = rvect(offsetx[c], offsety[c], offsetz[c]);
}
}
region_t reg;
reg.map = Carpet::map;
reg.outer_boundaries = ob;
ManualCoordinates_OneLevel
(cctkGH, hh, rl, refinement_levels,
ext.lower() + offset, ext.upper() + offset, reg, regs);
}
if (merge_overlapping_components) {
// Check if one or more of our components touch
again:
// Loop over all pairs of components
for (int c=0; c<(int)regs.size(); ++c) {
for (int cc=0; cc<c; ++cc) {
ibbox const overlap = regs.at(c).extent & regs.at(cc).extent;
if (not overlap.empty()) {
ibbox const combined =
regs.at(c).extent.expanded_containing (regs.at(cc).extent);
regs.at(c).extent = combined;
assert (all (all (regs.at(c).outer_boundaries ==
regs.at(cc).outer_boundaries)));
regs.erase (regs.begin() + cc);
goto again;
}
}
}
} // if merge_overlapping_components
regss.at(rl) = regs;
} // for rl
return 1;
}
} // namespace CarpetRegrid
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