Add API get network coords

tjnetwork.py

@@ -830,6 +830,14 @@ def set_option_v3(name: str, cs: ChangeSet) -> ChangeSet:
 def get_node_coord(name: str, node_id: str) -> dict[str, float]:
     return api.get_node_coord(name, node_id)
 
+# DingZQ, 2024-12-08, get all node coord
+# id, x, y
+def get_network_coords(name: str) -> dict[str, dict[str, float]]:
+    node_ids = api.get_all_node_ids(name)
+    result = {}
+    for node_id in node_ids:
+        result[node_id] = api.get_node_coord(name, node_id)
+    return result
 
 ############################################################
 # vertex 25.[VERTICES]