Throw exception if features from layers are overlapped when calculating area
Throw exception if features from layers are overlapped when calculating area

rockychen-dpaw/gokart,parksandwildlife/gokart,rockychen-dpaw/gokart,parksandwildlife/gokart,parksandwildlife/gokart,rockychen-dpaw/gokart,parksandwildlife/gokart,rockychen-dpaw/gokart