dont generate horos in hrmap_h3

bigstuff.cpp

@@ -1371,6 +1371,7 @@ EX int wallchance(cell *c, bool deepOcean) {
 EX bool horo_ok() {  
   if(INVERSE) return false;  
   if(currentmap->strict_tree_rules()) return true;
+  if(reg3::in_hrmap_h3() && !PURE) return false;
   return hyperbolic && !bt::in() && !arcm::in() && !kite::in() && !experimental && !hybri && !arb::in() && !quotient;
   }
 

reg3.cpp

@@ -2485,6 +2485,10 @@ hrmap_h3* hypmap() {
   return ((hrmap_h3*) currentmap);
   }
 
+EX bool in_hrmap_h3() {
+  return dynamic_cast<hrmap_h3*> (currentmap);
+  }
+
 EX int quotient_count() {
   return isize(hypmap()->quotient_map->allh);
   }