mirror of https://github.com/gchq/CyberChef.git
97 lines
3.0 KiB
JavaScript
97 lines
3.0 KiB
JavaScript
/**
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* @author n1474335 [n1474335@gmail.com]
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* @copyright Crown Copyright 2016
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* @license Apache-2.0
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*/
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import Operation from "../Operation.mjs";
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/**
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* Convert distance operation
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*/
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class ConvertDistance extends Operation {
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/**
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* ConvertDistance constructor
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*/
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constructor() {
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super();
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this.name = "Convert distance";
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this.module = "Default";
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this.description = "Converts a unit of distance to another format.";
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this.infoURL = "https://wikipedia.org/wiki/Orders_of_magnitude_(length)";
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this.inputType = "BigNumber";
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this.outputType = "BigNumber";
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this.args = [
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{
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"name": "Input units",
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"type": "option",
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"value": DISTANCE_UNITS
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},
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{
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"name": "Output units",
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"type": "option",
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"value": DISTANCE_UNITS
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}
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];
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}
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/**
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* @param {BigNumber} input
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* @param {Object[]} args
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* @returns {BigNumber}
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*/
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run(input, args) {
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const [inputUnits, outputUnits] = args;
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input = input.times(DISTANCE_FACTOR[inputUnits]);
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return input.div(DISTANCE_FACTOR[outputUnits]);
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}
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}
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const DISTANCE_UNITS = [
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"[Metric]", "Nanometres (nm)", "Micrometres (µm)", "Millimetres (mm)", "Centimetres (cm)", "Metres (m)", "Kilometers (km)", "[/Metric]",
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"[Imperial]", "Thou (th)", "Inches (in)", "Feet (ft)", "Yards (yd)", "Chains (ch)", "Furlongs (fur)", "Miles (mi)", "Leagues (lea)", "[/Imperial]",
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"[Maritime]", "Fathoms (ftm)", "Cables", "Nautical miles", "[/Maritime]",
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"[Comparisons]", "Cars (4m)", "Buses (8.4m)", "American football fields (91m)", "Football pitches (105m)", "[/Comparisons]",
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"[Astronomical]", "Earth-to-Moons", "Earth's equators", "Astronomical units (au)", "Light-years (ly)", "Parsecs (pc)", "[/Astronomical]",
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];
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const DISTANCE_FACTOR = { // Multiples of a metre
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"Nanometres (nm)": 1e-9,
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"Micrometres (µm)": 1e-6,
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"Millimetres (mm)": 1e-3,
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"Centimetres (cm)": 1e-2,
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"Metres (m)": 1,
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"Kilometers (km)": 1e3,
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"Thou (th)": 0.0000254,
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"Inches (in)": 0.0254,
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"Feet (ft)": 0.3048,
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"Yards (yd)": 0.9144,
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"Chains (ch)": 20.1168,
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"Furlongs (fur)": 201.168,
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"Miles (mi)": 1609.344,
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"Leagues (lea)": 4828.032,
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"Fathoms (ftm)": 1.853184,
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"Cables": 185.3184,
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"Nautical miles": 1853.184,
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"Cars (4m)": 4,
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"Buses (8.4m)": 8.4,
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"American football fields (91m)": 91,
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"Football pitches (105m)": 105,
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"Earth-to-Moons": 380000000,
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"Earth's equators": 40075016.686,
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"Astronomical units (au)": 149597870700,
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"Light-years (ly)": 9460730472580800,
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"Parsecs (pc)": 3.0856776e16
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};
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export default ConvertDistance;
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