map_data = [{"h":"343744","x":"144.25798554401","y":"44.0495871896232"},{"h":"310500","x":"141.349011449239","y":"43.0569772700561"},{"h":"325800","x":"141.348883405482","y":"43.0569519927454"},{"h":"313982","x":"141.34781561038","y":"43.0532215397722"},{"h":"302871","x":"143.204339520487","y":"42.9196988054986"},{"h":"311972","x":"141.140475242303","y":"42.5001304104038"},{"h":"375336","x":"140.78511643688","y":"41.7758877798013"},{"h":"307764","x":"140.272250619178","y":"38.1580588422478"},{"h":"322780","x":"140.055873351304","y":"37.879695114456"},{"h":"327905","x":"138.826703187215","y":"37.7112913789421"}];