Add API to get major nodes and major pipes

tjnetwork.py

@@ -844,6 +844,18 @@ def get_network_node_coords(name: str) -> dict[str, dict[str, float]]:
         result[node_id] = coord
     return result
 
+# DingZQ 2024-12-31
+# id, x, y, type
+def get_major_node_coords(name: str) -> dict[str, dict[str, float]]:
+    nodes_id_and_type = api.get_nodes_id_and_type(name)
+    major_node_ids = api.get_major_nodes(name)
+    result = {}
+    for node_id in major_node_ids:
+        coord = api.get_node_coord(name, node_id)
+        coord['type'] = nodes_id_and_type[node_id]
+        result[node_id] = coord
+    return result
+
 # DingZQ, 2024-12-08, get all links' start and end node
 # link_id:link_type:node_id1:node_id2
 def get_network_link_nodes(name: str) -> list[str]:
@@ -854,6 +866,16 @@ def get_network_link_nodes(name: str) -> list[str]:
         result.append(f"{link_id}:{link_type}:{nodes[0]}:{nodes[1]}")
     return result
 
+# DingZQ 2024-12-31
+# link_id:pipe:node_id1:node_id2
+def get_major_pipe_nodes(name: str) -> list[str]:
+    major_pipe_ids = api.get_major_pipes(name)
+    result = []
+    for link_id in major_pipe_ids:
+        nodes = api.get_link_nodes(name, link_id)
+        result.append(f"{link_id}:pipe:{nodes[0]}:{nodes[1]}")
+    return result
+
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 # vertex 25.[VERTICES]
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