Fix for not allowed empty string as default parameters in launch files

Author: Myzhar

zed_display_rviz2/launch/display_zed.launch.py

@@ -122,7 +122,7 @@ def generate_launch_description():
 
         declare_svo_path_cmd = DeclareLaunchArgument(
             'svo_path',
-            default_value='',
+            default_value='live', # 'live' used as patch for launch files not allowing empty strings as default parameters
             description='Path to an input SVO file. Note: overrides the parameter `general.svo_file` in `common.yaml`.')
 
         # Launch parameters

zed_display_rviz2/launch/display_zed2.launch.py

@@ -122,7 +122,7 @@ def generate_launch_description():
 
         declare_svo_path_cmd = DeclareLaunchArgument(
             'svo_path',
-            default_value='',
+            default_value='live', # 'live' used as patch for launch files not allowing empty strings as default parameters
             description='Path to an input SVO file. Note: overrides the parameter `general.svo_file` in `common.yaml`.')
 
         # Launch parameters

zed_display_rviz2/launch/display_zed2i.launch.py

@@ -122,7 +122,7 @@ def generate_launch_description():
 
         declare_svo_path_cmd = DeclareLaunchArgument(
             'svo_path',
-            default_value='',
+            default_value='live', # 'live' used as patch for launch files not allowing empty strings as default parameters
             description='Path to an input SVO file. Note: overrides the parameter `general.svo_file` in `common.yaml`.')
 
         # Launch parameters

zed_display_rviz2/launch/display_zedm.launch.py

@@ -122,7 +122,7 @@ def generate_launch_description():
 
         declare_svo_path_cmd = DeclareLaunchArgument(
             'svo_path',
-            default_value='',
+            default_value='live', # 'live' used as patch for launch files not allowing empty strings as default parameters
             description='Path to an input SVO file. Note: overrides the parameter `general.svo_file` in `common.yaml`.')
 
         # Launch parameters