3 #ifndef DUNE_PRINTGRID_HH
4 #define DUNE_PRINTGRID_HH
9 #include <dune/common/exceptions.hh>
10 #include <dune/common/parallel/mpihelper.hh>
18 struct ElementDataLayout
36 template <
typename B,
typename C>
37 C centrify (
const B& basegeo,
const C& coords,
const double scale) {
39 ret -= basegeo.center();
41 ret += basegeo.center();
46 template <
typename Coord>
47 void draw_line (std::ofstream &plotfile,
const Coord &p1,
const Coord &p2, std::string options) {
48 plotfile <<
"set object poly from ";
49 plotfile << p1[0] <<
"," << p1[1] <<
" to ";
50 plotfile << p2[0] <<
"," << p2[1] <<
" to ";
51 plotfile << p1[0] <<
"," << p1[1];
52 plotfile <<
" " << options << std::endl;
70 template <
typename Gr
idType>
71 void printGrid (
const GridType& grid,
const Dune::MPIHelper& helper, std::string output_file =
"printgrid",
72 int size = 2000,
bool execute_plot =
true,
bool png =
true,
bool local_corner_indices =
true,
73 bool local_intersection_indices =
true,
bool outer_normals =
true)
77 output_file = output_file +
"_" + std::to_string(helper.rank());
78 std::string plot_file_name = output_file +
".gnuplot";
79 std::ofstream plotfile (plot_file_name, std::ios::out | std::ios::trunc);
80 if (!plotfile.is_open()) {
81 DUNE_THROW(Dune::IOError,
"Could not create plot file " << output_file <<
"!");
86 plotfile <<
"set size ratio -1" << std::endl;
88 plotfile <<
"set terminal png size " << size <<
"," << size << std::endl;
89 plotfile <<
"set output '" << output_file <<
".png'" << std::endl;
91 plotfile <<
"set terminal svg size " << size <<
"," << size <<
" enhanced background rgb 'white'" << std::endl;
92 plotfile <<
"set output '" << output_file <<
".svg'" << std::endl;
96 typedef typename GridType::LeafGridView GV;
97 const GV gv = grid.leafGridView();
102 ElementMapper elementmapper(grid);
103 NodeMapper nodemapper(grid);
106 typedef typename GV::template Codim<0 >::Iterator LeafIterator;
109 LeafIterator it = gv.template begin<0>();
112 Dune::FieldVector<typename GridType::ctype,2> max_coord (it->geometry().center()), min_coord (max_coord);
115 for (; it != gv.template end<0>(); ++it) {
117 const auto& entity = *it;
118 auto geo = entity.geometry();
121 int element_id = elementmapper.index(entity);
122 plotfile <<
"set label at " << geo.center()[0] <<
"," << geo.center()[1] <<
" '"
123 << element_id <<
"' center" << std::endl;
125 for (
int i = 0; i < geo.corners(); ++i) {
127 const int globalNodeNumber1 = nodemapper.subIndex(entity, i, 2);
128 auto labelpos = centrify (geo, geo.corner(i), 0.7);
129 plotfile <<
"set label at " << labelpos[0] <<
"," << labelpos[1] <<
" '" << globalNodeNumber1;
130 if (local_corner_indices)
131 plotfile <<
"(" << i <<
")";
132 plotfile <<
"' center" << std::endl;
135 for (
int dim = 0; dim < 2; ++dim) {
136 if (geo.corner(i)[dim] < min_coord[dim])
137 min_coord[dim] = geo.corner(i)[dim];
138 else if (geo.corner(i)[dim] > max_coord[dim])
139 max_coord[dim] = geo.corner(i)[dim];
146 const auto& intersection = *is;
147 auto igeo = intersection.geometry();
150 draw_line (plotfile, igeo.corner(0), igeo.corner(1),
"fs empty border 1");
153 if (local_intersection_indices) {
154 auto label_pos = centrify (geo, igeo.center(), 0.8);
155 plotfile <<
"set label at " << label_pos[0] <<
"," << label_pos[1]
156 <<
" '" << intersection.indexInInside() <<
"' center" << std::endl;
161 auto intersection_pos = igeo.center();
162 auto normal = intersection.centerUnitOuterNormal();
163 normal *= 0.15 * igeo.volume();
164 auto normal_end = intersection_pos + normal;
165 plotfile <<
"set arrow from " << intersection_pos[0] <<
"," << intersection_pos[1]
166 <<
" to " << normal_end[0] <<
"," << normal_end[1] <<
" lt rgb \"gray\"" << std::endl;
170 auto inner_corner1 = centrify (geo, igeo.corner(0), 0.5);
171 auto inner_corner2 = centrify (geo, igeo.corner(1), 0.5);
174 if (intersection.boundary())
175 draw_line (plotfile, inner_corner1, inner_corner2,
"fs empty border 3 lw 4");
178 if (intersection.neighbor())
179 draw_line (plotfile, inner_corner1, inner_corner2,
"fs empty border 2");
181 draw_line (plotfile, inner_corner1, inner_corner2,
"fs empty border 1");
187 Dune::FieldVector<typename GridType::ctype,2> extend (max_coord - min_coord);
192 plotfile <<
"plot [" << min_coord[0] <<
":" << max_coord[0] <<
"] [" << min_coord[1]
193 <<
":" << max_coord[1] <<
"] NaN notitle" << std::endl;
197 std::string cmd =
"gnuplot -p '" + plot_file_name +
"'";
198 if (std::system (cmd.c_str()) != 0)
199 DUNE_THROW(Dune::Exception,
"Error running GNUPlot: " << cmd);
205 #endif // #ifndef DUNE_PRINTGRID_HH