Set code inputs without using the command line

[Alirezasoltani19951374]

I want to debug the code line by line to understand more. I did the data address by changing the functionparser.add_argument("--dataset",default="data/lund/",help="dataset to process"). But I do not know where to set inputs like Extract _Metadata or Extract Features. Please help me

[fabianschenk]

Hi @Alirezasoltani19951374 ,

You could just start a debugger with the same parameters you would use in a terminal. No need to change anything in the code. Just in case you want to follow a different route: extract_metadata,create_tracks,... are opensfm commands. The structure is a bit tricky to figure out. Every command is a class with a name attribute that is then matched to the positional command argument here: https://github.com/mapillary/OpenSfM/blob/c250de55ee3053fc7d8b433860664206ba8b2841/opensfm/commands/command_runner.py#L33-L37 The commands themselves are imported from __init__.py.

Good luck

[Alirezasoltani19951374]

Hi @fabianschenk, thanks for responding, I did not understand what you said. I get this error when I go line by line of code. While I have specified the location of the data by functionparser.add_argument("--dataset",default="data/lund/",help="dataset to process")

[fabianschenk]

Hi @Alirezasoltani19951374 ,

Even though I absolutely do not understand why you would set the parameters instead of passing them to the debugger, you could just set them above the with dataset_factory(....) something like this (untested code!):

args.dataset = "data/berlin"    # Here you might need the full path /home/OpenSfM/.../data/berlin
args.dataset_type = None # You might need a different value here.
args.command = "extract_metadata"
with dataset_factory(args.dataset, args.dataset_type) as data:
.....

If you have other problems with debugging in VS Code, please consult the VS Code documentation!

Best, Fabian

[Alirezasoltani19951374]

Hi@fabianschenk , I apologize for taking your time. When running a program through a command line, for example python3 bin / opensfm_main.py extract_metadata data / lund / Runs well. But when I passing the parameters through Visual Studio code, I get the following error Traceback (most recent call last): File "/home/alireza/Test01/OpenSfM/bin/opensfm_main.py", line 28, in commands.opensfm_commands, create_default_dataset_context, dataset_choices=["opensfm"] File "/home/alireza/Test01/OpenSfM/opensfm/commands/command_runner.py", line 34, in command_runner command.run(data, args) File "/home/alireza/Test01/OpenSfM/opensfm/commands/command.py", line 13, in run self.run_impl(data, args) File "/home/alireza/Test01/OpenSfM/opensfm/commands/extract_metadata.py", line 12, in run_impl extract_metadata.run_dataset(dataset) File "/home/alireza/Test01/OpenSfM/opensfm/actions/extract_metadata.py", line 48, in run_dataset data.save_camera_models(camera_models) File "/home/alireza/Test01/OpenSfM/opensfm/dataset.py", line 459, in save_camera_models with self.io_handler.open_wt(self._camera_models_file()) as fout: File "/home/alireza/Test01/OpenSfM/opensfm/io.py", line 1368, in open_wt return cls.open(path, "w", encoding="utf-8") File "/home/alireza/Test01/OpenSfM/opensfm/io.py", line 1364, in open return open(*args, **kwargs) FileNotFoundError: [Errno 2] No such file or directory: 'data/berlin/camera_models.json' Learning this program is one of my desires. I hope you are not upset if my questions are basic. thanks alot

[fabianschenk]

Hi @Alirezasoltani19951374 ,

This is likely because the debugger starts in a folder (probably your home directory), where data/berlin/ does not exist.

Use the full path /home/OpenSfM/data/berlin like I already wrote as comment above!

args.dataset = "data/berlin"    # Here you might need the full path /home/OpenSfM/data/berlin

I've debugged OpenSfM quite often myself and it works. Please, make sure to double check file paths, read the VS Code doc and use Google search.