Define a default value for -m

geostat.cpp

@@ -91,7 +91,7 @@ int main(int argc, char** argv) {
 				std::cout << "\t-D\tprint furthest and closest caches\n";
 				std::cout << "\t-H file\trender a heat map to a file\n";
 				std::cout << "\t-s n\tstamp size for a heat map (default = 15)\n";
-				std::cout << "\t-m map\tchosen map (Poland, Poland_relief, Europe)\n";
+				std::cout << "\t-m map\tchosen map: Poland, Poland_relief, Europe (default = Poland)\n";
 				std::cout << "\t-L\tprint all caches\n";
 				std::cout << "\t-T\tprint D/T matrix\n";
 				std::cout << "\t-h\tdisplay this help screen\n";
@@ -121,7 +121,7 @@ int main(int argc, char** argv) {
 		const Map* chosen_map;
 		if (heat_map == "Poland_relief")
 			chosen_map = &Poland_relief;
-		else if (heat_map == "Poland")
+		else if (heat_map == "Poland" || heat_map.empty())
 			chosen_map = &Poland;
 		else if (heat_map == "Europe")
 			chosen_map = &Europe;