Demo show how to edit nodes of features in our map, the select tool can select the node,if drag you will move it's place,if press DELETE key,you will remove the node,the "insert node" tool let you add a node on the line between two nodes.
本DEMO演示如何进行节点操作，节点的选择、节点的移动、删除，添加节点的时候，需要在两个节点之间点击新节点，然后再对新节点进行操作。