beetaone/math-operations

•Updated almost 2 years ago

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beetaone/math-operations repository overview

⁠Math Operations


Name	Math Operations
Version	v1.0.2
DockerHub	beetaone/math-operations⁠
Authors	Jakub Grzelak

Math Operations⁠

⁠Description

This module enables performing math operations on the data. Supported operations: + - * / % ^ ceil abs floor sqrt sin cos tan exp. Negative numbers must be put in brackets, i.e. (-9) or (-1.34). If you want to use received data, then refer to them in your calculations formula by placing their label in double curly brackets, i.e. if your data is { 'temperature': 12, 'volume': 3 } and want to use temperature in your calculations then refer to it as {{temperature}}

Sample calculations:

{{temperature}} * 9 / 5 + 32
1/2 + (2 + 3) / (sin((-9) - 2)^2 - 6/7) - cos(1) + {{temperature}}
{{temperature}} * {{volume}} / (-12)

⁠Supported Operations

Operand	Description
`+`	Sum of two numbers.
`-`	Subtraction of two numbers.
`*`	Multiplication of two numbers.
`/`	Division of two numbers.
`%`	Modulus.
`^`	Power.
`ceil(x)`	Return the ceiling of x, the smallest integer greater than or equal to x.
`abs(x)`	Return the absolute value of x.
`floor(x)`	Return the floor of x, the largest integer less than or equal to x.
`sqrt(x)`	Return the square root of x.
`sin(x)`	Return the sine of x radians.
`cos(x)`	Return the cosine of x radians.
`tan(x)`	Return the tangent of x radians.
`exp(x)`	Return e raised to the power x, where e = 2.718281… is the base of natural logarithms.

⁠Environment Variables

⁠Module Specific

The following module configurations can be provided in a data service designer section on beetaone platform:

Name	Environment Variables	type	Description
Formula	FORMULA	string	Build a mathematics formula using supported operations. To use data in your calculations refer to their labels in double curly brackets {{...}}.
Result Label	RESULT_LABEL	string	Assign calculations results to this label.
Action on Result	NEW_RESULT	string	What to do with the calculated results? Update result label? Output as stand alone data? Options: `update` or `stand-alone`. If selected `update` then calculated value will update value assigned to `Result Label` or append to the data object received by the module if `Result Label` is not present. If selected `stand-alone` then data received by the module will be disregarded and the module will output a new JSON object holding calculated value and assigned to `Result Label`

⁠Set by the beetaone Agent on the edge-node

Other features required for establishing the inter-container communication between modules in a data service are set by beetaone agent.

Environment Variables	type	Description
MODULE_NAME	string	Name of the module
MODULE_TYPE	string	Type of the module (Input, Processing, Output)
EGRESS_URLS	string	HTTP ReST endpoints for the next module
INGRESS_HOST	string	Host to which data will be received
INGRESS_PORT	string	Port to which data will be received

⁠Dependencies

bottle
requests

⁠Input

Input to this module is:

JSON body single object, example:

{
    "temperature": 12,
    "volume": 3
}

array of JSON body objects, example:

[
    {
        "temperature": 12,
        "volume": 3
    },
    {
        "temperature": 10,
        "volume": 4
    },
    {
        "temperature": 1.3234,
        "volume": 3
    }
]

⁠Output

If the following module configuration is provided FORMULA = {{temperature}} * 9/5 + 32, RESULT_LABEL = temperatureFahrenheit, NEW_RESULT = update then output of this module to the above input data will be:

JSON body single object, example:

{
    "temperature": 12,
    "volume": 3,
    "temperatureFahrenheit": 53.6
}

array of JSON body objects, example:

[
    {
        "temperature": 12,
        "volume": 3,
        "temperatureFahrenheit": 53.6
    },
    {
        "temperature": 10,
        "volume": 4,
        "temperatureFahrenheit": 50
    },
    {
        "temperature": 1.3234,
        "volume": 3,
        "temperatureFahrenheit": 34.38212
    }
]

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Last updated

almost 2 years ago

docker pull beetaone/math-operations:v1.0.2