fix

vision_detect/launch/medical_sense.launch.py

@@ -0,0 +1,37 @@
+from launch import LaunchDescription
+from launch_ros.actions import Node
+from launch.actions import DeclareLaunchArgument, OpaqueFunction
+from launch.substitutions import LaunchConfiguration
+
+import os
+import json
+from ament_index_python.packages import get_package_share_directory
+
+
+share_dir = get_package_share_directory('vision_detect')
+config_dir = os.path.join(share_dir, 'configs/launch_configs/medical_sense.json')
+with open(config_dir, "r") as f:
+    configs = json.load(f)
+
+def generate_launch_description():
+    args_detect = [
+        DeclareLaunchArgument('configs_path', default_value=config_dir),
+    ]
+
+    def create_detect_node(context):
+        configs_path = LaunchConfiguration('configs_path').perform(context)
+
+        return [
+            Node(
+                package='vision_detect',
+                executable='detect_node',
+                name=configs['node_name'],
+                parameters=[{
+                    'configs_path': configs_path,
+                }]
+            )
+        ]
+
+    return LaunchDescription(args_detect + [
+        OpaqueFunction(function=create_detect_node),
+    ])