Add API covnertv3tov2

api/inp_in.py

@@ -35,6 +35,9 @@ from .s27_backdrop import inp_in_backdrop
 from .s32_region import inp_in_region,inp_in_bound,inp_in_regionnodes
 from .s32_region_util import from_postgis_polygon,to_postgis_polygon
 
+#DingZQ, 2024-12-28, export inp
+from .inp_out import export_inp
+
 _S = 'S'
 _L = 'L'
 
@@ -371,6 +374,29 @@ def read_inp(project: str, inp: str, version: str = '3') -> bool:
     close_project(project)
     return True
 
+#DingZQ, 2024-12-28, convert v3 to v2
+def convert_inp_v3_to_v2(inp: str) -> ChangeSet:
+    project = 'v3Tov2'
+
+    if is_project_open(project):
+       close_project(project)
+
+    if have_project(project):
+       delete_project(project)
+
+    create_project(project)
+    open_project(project)
+
+    parse_file(project, inp, '3')
+
+    '''try:
+        parse_file(project, inp, version)
+    except:
+        close_project(project)
+        delete_project(project)
+        return False'''
+
+    return export_inp(project, '2')
 
 def import_inp(project: str, cs: ChangeSet, version: str = '3') -> bool:
     if version != '3' and version != '2':