Configuration

This section describes main CARS configuration structure through a json configuration file.

The structure follows this organisation:

{
    "pipeline": "sensor_to_full_resolution_dsm",
    "inputs": {
        ...
    },

    "applications": {
        "name_application_used_in_pipeline": {
            "parameter": value_parameter
        }
    }

    "orchestrator": {
        "mode": "local_dask"
    },

    "output": {
          "out_dir"="output_directory_path"
    }
}

Warning

Be careful with commas to separate each section. None needed for the last json element.

To have a full configuration, use Sensor to full resolution dsm main pipeline section for main pipeline configuration examples.

Pipeline

This key is optional and defined the choice of CARS pipeline. At the moment, there are two of them:

sensor_to_full_resolution_dsm as default, see Sensor to full resolution dsm main pipeline for Full example.
sensor_to_low_resolution_dsm, for more advanced usage, a subpart of main pipeline to generate a low resolution DSM with sparse matches only.

Inputs

Values associated to this key are defined by pipeline so let’s refer to Sensor to full resolution dsm main pipeline for details.

Applications

This key is optional and allows to redefine parameters for each application defined in each “application_name” section used by pipeline.

See Applications for each 3D steps for details.

Note

For the particular case of the application Point Cloud outliers removing in the Sensor to full resolution dsm main pipeline, please refer not only in Applications for each 3D steps but also on Applications

Orchestrator

This key is optional and allows to define orchestrator configuration that controls the distributed computations:

Name	Description	Type	Default value	Required
mode	Parallelization mode “local_dask”, “pbs_dask” or “mp”	string	local_dask	No
nb_workers	Number of workers	int, should be > 0	2	No
walltime	Walltime for one worker	string, Should be formatted as HH:MM:SS	00:59:00	No

Outputs

Values associated to this key are defined by pipeline so let’s refer to Sensor to full resolution dsm main pipeline.