将 native/api/ 改名为 native/wndb/，避免与 Web API 层命名冲突

app/native/wndb/s35_vd_gen.py

@@ -0,0 +1,21 @@
+from .s32_region_util import calculate_boundary, inflate_boundary
+from .s35_vd_cal import *
+from .s35_vd import get_all_virtual_district_ids
+from .batch_exe import execute_batch_command
+
+def generate_virtual_district(name: str, centers: list[str], inflate_delta: float = 0.5) -> ChangeSet:
+    cs = ChangeSet()
+
+    for id in get_all_virtual_district_ids(name):
+        cs.delete({'type': 'virtual_district', 'id': id})
+
+    vds = calculate_virtual_district(name, centers)['virtual_districts']
+
+    for vd in vds:
+        center = vd['center']
+        nodes = vd['nodes']
+        boundary = calculate_boundary(name, nodes)
+        boundary = inflate_boundary(name, boundary, inflate_delta)
+        cs.add({ 'type': 'virtual_district', 'id': f"VD_{center}", 'boundary': boundary, 'center': center, 'nodes': nodes })
+
+    return execute_batch_command(name, cs)