Edit and execute context

The utils.contexts module provides ready-made contexts like:

• Tobii Pro Glasses 2 data capture and data playback contexts,
• Tobii Pro Glasses 3 data capture context,
• Pupil Labs Invisible data capture context,
• Pupil Labs Neon data capture context,
• File data playback contexts,
• OpenCV window cursor position capture and movie playback,
• Random gaze position generator.

Edit JSON configuration

Here is a JSON configuration that loads a Random.GazePositionGenerator context:

{
    "argaze.utils.contexts.Random.GazePositionGenerator": {
        "name": "Random gaze position generator",
        "range": [1280, 720],
        "pipeline": {
            "argaze.ArFeatures.ArFrame": {
                "size": [1280, 720]
            }
        }
    }
}

Let's understand the meaning of each JSON entry.

argaze.utils.contexts.Random.GazePositionGenerator

The class name of the object being loaded from the utils.contexts module.

name

The name of the ArContext. Basically useful for visualization purposes.

range

The range of the gaze position being generated. This property is specific to the Random.GazePositionGenerator class.

pipeline

A minimal gaze processing pipeline that only draws last gaze position.

Context execution

A context can be loaded from a JSON configuration file using the load command.

python -m argaze load CONFIGURATION

This command should open a GUI window with a random yellow dot inside.