Merge branch 'readme' of https://mygit.th-deg.de/roboct/definitions/json_schemas into readme

README.md

@@ -31,5 +31,33 @@ This schema defines the properties for projection data in THD JSON format.
 ### Examples
 
 ```python:../scripts/validate_thd_json.py 
+from jsonschema import validate, ValidationError
+import json
 
+from pathlib import Path
+
+
+SHEMA = Path('./thd_json/projection.json')
+FILE = Path('./examples/thd_json/test_thd.json')
+
+
+def main():
+    with open(str(SHEMA)) as schema_file, open(str(FILE)) as data_file:
+        schema = json.load(schema_file)
+        data = json.load(data_file)
+
+        print(f"JSON Schema: {schema['title']}")
+        print(f"Validate File: {FILE.parent} / {FILE.name}\n")
+        print(f"JSON Schema (Version): {schema['version']}")
+        print(f"JSON Schema (Date): {schema['date']}\n\n")
+
+        try:
+            validate(instance=data, schema=schema)
+            print("JSON is valid.")
+            
+        except ValidationError as e:
+            print("Validation error:", e)
+
+if __name__ == '__main__':
+    main()
 ```