Accessing outputs

The Outputs class stores the outputs produced by a 6S run and allows easy access to them.

class Py6S.Outputs(stdout, stderr)

Stores the output from a 6S run.


  • fulltext – The full output of the 6S executable. This can be written to a file with the write_output_file method.
  • values – The main outputs from the 6S run, stored in a dictionary. Accessible either via standard dictionary notation (s.outputs.values['pixel_radiance']) or as attributes (s.outputs.pixel_radiance)


  • __init__() – Constructor which takes the stdout and stderr from the model and processes it into the numerical outputs.
  • extract_results() – Function called by the constructor to parse the output into individual variables
  • to_int() – Convert a string to an int, so that it works even if passed a float.
  • write_output_file() – Write the full textual output of the 6S model to a file.

Extracts the AOT from the visibility and AOT line in the output.


Extract the results from the text output of the model and place them in the values dictionary.


Extracts the visibility from the visibility and AOT line in the output


Converts a string to an integer.

Does this by converting to float and then converting that to int, meaning that converting “5.00” to an integer will actually work.

  • str – The string containing the number to convert to an integer

Writes the full textual output of the 6S model run to the specified filename.

  • filename – The filename to write the output to