When applicable (i.e. Metric>System == Grid), assign external grid costs by node using the halving technique where the node assumes the cost of half of the segments it's attached to. "Fake" nodes that originate off existing grid should be associated with the nearest node so the "fake" nodes' half segments are connected to one
When applicable (i.e. Metric>System == Grid), assign external grid costs by node using the halving technique where the node assumes the cost of half of the segments it's attached to. "Fake" nodes that originate off existing grid should be associated with the nearest node so the "fake" nodes' half segments are connected to one