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Old Version 1

changes.mady.by.user Yulia Morozova

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New Version 2

changes.mady.by.user Anna An

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Code Block
 {
    "queryType": "zone",
    "figures": [
        {
            "shape": [
                [0.3, 0.3],
                [0.7, 0.3],
                [0.7, 0.7],
                [0.3, 0.7]
            ]
        }
    ],
    "objectProperties": {
        "size": {
            "height": [0, 0.25]
        }
    },
    "conditions": {
        "duration": 5
    }
}

Object type (objectProperties/category)

An object can be abandoned or moving (face, human, group, vehicle). In the request abandoned type cannot be mixed with other object types (otherwise the abandoned requirement will be ignored).

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Code Block
 {
    "queryType": "line",
    "figures": [
        {
            "shape": [
                [0.5, 0.8],
                [0.5, 0.2]
            ]
        }
    ]
    "objectProperties": {
        "category": ["human", "group"],
    }
}

Object size (objectProperties/size)

It sets minimum and maximum width and height of an object.

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Code Block
 {
    "queryType": "zone",
    "figures": [
        {
            "shape": [
                [0.3, 0.3],
                [0.7, 0.3],
                [0.7, 0.7],
                [0.3, 0.7]
            ]
        }
    ],
    "objectProperties": {
        "size": {
            "height": [0, 0.25]
        }
    }
}

Object color (objectProperties/color)

It sets minimum and maximum coordinates of the object color in HSV space. Hue is measured in degrees (from 0 to 360), saturation and brightness – in fractions from 0 to 1.

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Code Block
 {
    "queryType": "zone",
    "figures": [
        {
            "shape": [
                [0.3, 0.3],
                [0.7, 0.3],
                [0.7, 0.7],
                [0.3, 0.7]
            ]
        }
    ],
    "objectProperties": {
        "color": {
            "hue": [0, 360],
            "saturation": [0, 0.1],
            "brightness": [0.8, 1]
        }
    }
}

Velocity (conditions/velocity)

It sets minimum and maximum velocity of the object.

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Code Block
 {
    "queryType": "zone",
    "figures": [
        {
            "shape": [
                [0.3, 0.3],
                [0.7, 0.3],
                [0.7, 0.7],
                [0.3, 0.7]
            ]
        }
    ],
    "conditions": {
        "velocity": [0.25, 1]
    }
}

Directions (conditions/directions)

It sets the direction for the object as an array of angles. Angles are measured in radians and are counted from the axis directed to the right clockwise.

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Code Block
 {
    "queryType": "zone",
    "figures": [
        {
            "shape": [
                [0.3, 0.3],
                [0.7, 0.3],
                [0.7, 0.7],
                [0.3, 0.7]
            ]
        }
    ],
    "conditions": {
        "directions": [
            [315, 45],
            [135, 225]
        ]
    }
}

Duration (conditions/duration)

It sets time (in seconds) during which the object is to continuously meet all conditions.

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Code Block
 {
    "queryType": "zone",
    "figures": [
        {
            "shape": [
                [0.3, 0.3],
                [0.7, 0.3],
                [0.7, 0.7],
                [0.3, 0.7]
            ]
        }
    ],
    "conditions": {
        "duration": 5
    }
}

Object number (condtions/count)

It sets the minimum required number of objects that simultaneously meet other request conditions.

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