Initial native OpenSim viewer prototype

Geometry/remove_vtp_normals.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+
+import argparse
+import re
+
+_normals_pattern = re.compile(r'\s*<PointData Normals="Normals".+?</PointData>', flags=re.DOTALL)
+
+def remove_normals_node(vtp_content):
+    return re.sub(_normals_pattern, '', vtp_content)
+
+def remove_normals_from_vtp(vtp_path):
+    with open(vtp_path, 'r', newline='') as fd:
+        vtp_content = fd.read()
+
+    modified_vtp_content = remove_normals_node(vtp_content)
+
+    if modified_vtp_content != vtp_content:
+        with open(vtp_path, 'w', newline='') as fd:
+            fd.write(modified_vtp_content)
+
+def main():
+    parser = argparse.ArgumentParser(
+        description='removes <PointData Normals="Normals">...</PointData> in each given VTP file'
+    )
+    parser.add_argument('vtp_file', nargs='+', type=str)
+    args = parser.parse_args()
+    for vtp_file in args.vtp_file:
+        remove_normals_from_vtp(vtp_file)
+
+if __name__ == '__main__':
+    main()