How to convert GEE JavaScript to Python? about qgis-earthengine-examples HOT 5 CLOSED

I have improved convert_js_to_python.py. See the example below. Simply change in_file_path to your JavaScript file path or in_dir to your JavaScript folder.

As @csaybar mentioned, the conversion is not always perfect. Depending on the complexity of your scripts, some manual changes might be needed.

if __name__ == '__main__':

    ## Convert one JavaScript file to Python
    root_dir = os.path.dirname(os.path.abspath(__file__))
    in_file_path = os.path.join(root_dir, "JavaScripts/NormalizedDifference.js")  # change this path to your JavaScript file
    out_file_path = os.path.splitext(in_file_path)[0] + ".py"
    js_to_python(in_file_path, out_file_path)
    print("Saved python script: {}".format(out_file_path))

    ## Convert all JavaScript files in a folder to Python
    in_dir = os.path.join(root_dir, "JavaScripts")   # change this path to your JavaScript folder
    for in_file_path in Path(in_dir).rglob('*.js'):
        out_file_path = os.path.splitext(in_file_path)[0] + ".py"
        js_to_python(in_file_path, out_file_path)
    print("Saved python script folder: {}".format(in_dir))

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@csaybar @aixiaodetianshi @Lecaethomas I have improved the conversion script significantly. Check here.

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You might use the cover_js_to_python module to help you in the translation. However, additional changes could also be necessary, it's depending on code complexity. A reproducible example here

#script
!wget https://raw.githubusercontent.com/giswqs/qgis-earthengine-examples/master/convert_js_to_python.py
#js example
!wget https://raw.githubusercontent.com/renelikestacos/Google-Earth-Engine-JavaScript-Examples/master/010-modis_zonal_statistics_calculation.js

from convert_js_to_python import js_to_python
in_file_path = '/content/010-modis_zonal_statistics_calculation.js'
with open(in_file_path, 'r') as f:
  for line in f:
    print(line)

js_to_python('/content/010-modis_zonal_statistics_calculation.js')
with open(in_file_path, 'r') as f:
  for line in f:
    print(line)

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Hi,
I'm really interested too, I have a lot of JS script, but I don't get how you make your script work. Could you give explanation about the context and method? By advance thanks,
Thomas

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@Lecaethomas Here are the steps:

1. Clone the repo (git clone https://github.com/giswqs/qgis-earthengine-examples.git)
2. Copy whatever GEE JavaScripts you want to convert into the JavaScripts folder
3. Run convert_js_to_python.py
4. Check the converted Python scripts under the JavaScripts folder
5. Depending on the complexity of your JavaScripts, additional manual changes might be needed.

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