157 lines
2.7 KiB
JavaScript
157 lines
2.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var conversions = {
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// Absolute length units
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'px': {
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'px': 1,
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'cm': 96 / 2.54,
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'mm': 96 / 25.4,
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'q': 96 / 101.6,
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'in': 96,
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'pt': 96 / 72,
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'pc': 16
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},
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'cm': {
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'px': 2.54 / 96,
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'cm': 1,
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'mm': 0.1,
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'q': 0.025,
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'in': 2.54,
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'pt': 2.54 / 72,
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'pc': 2.54 / 6
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},
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'mm': {
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'px': 25.4 / 96,
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'cm': 10,
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'mm': 1,
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'q': 0.25,
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'in': 25.4,
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'pt': 25.4 / 72,
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'pc': 25.4 / 6
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},
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'q': {
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'px': 101.6 / 96,
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'cm': 40,
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'mm': 4,
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'q': 1,
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'in': 101.6,
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'pt': 101.6 / 72,
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'pc': 101.6 / 6
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},
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'in': {
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'px': 1 / 96,
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'cm': 1 / 2.54,
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'mm': 1 / 25.4,
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'q': 1 / 101.6,
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'in': 1,
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'pt': 1 / 72,
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'pc': 1 / 6
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},
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'pt': {
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'px': 0.75,
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'cm': 72 / 2.54,
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'mm': 72 / 25.4,
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'q': 72 / 101.6,
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'in': 72,
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'pt': 1,
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'pc': 12
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},
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'pc': {
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'px': 0.0625,
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'cm': 6 / 2.54,
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'mm': 6 / 25.4,
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'q': 6 / 101.6,
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'in': 6,
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'pt': 6 / 72,
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'pc': 1
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},
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// Angle units
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'deg': {
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'deg': 1,
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'grad': 0.9,
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'rad': 180 / Math.PI,
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'turn': 360
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},
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'grad': {
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'deg': 400 / 360,
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'grad': 1,
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'rad': 200 / Math.PI,
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'turn': 400
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},
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'rad': {
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'deg': Math.PI / 180,
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'grad': Math.PI / 200,
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'rad': 1,
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'turn': Math.PI * 2
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},
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'turn': {
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'deg': 1 / 360,
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'grad': 0.0025,
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'rad': 0.5 / Math.PI,
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'turn': 1
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},
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// Duration units
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's': {
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's': 1,
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'ms': 0.001
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},
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'ms': {
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's': 1000,
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'ms': 1
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},
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// Frequency units
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'hz': {
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'hz': 1,
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'khz': 1000
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},
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'khz': {
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'hz': 0.001,
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'khz': 1
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},
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// Resolution units
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'dpi': {
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'dpi': 1,
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'dpcm': 1 / 2.54,
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'dppx': 1 / 96
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},
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'dpcm': {
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'dpi': 2.54,
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'dpcm': 1,
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'dppx': 2.54 / 96
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},
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'dppx': {
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'dpi': 96,
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'dpcm': 96 / 2.54,
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'dppx': 1
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}
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};
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function convertUnit(value, sourceUnit, targetUnit, precision) {
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var sourceUnitNormalized = sourceUnit.toLowerCase();
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var targetUnitNormalized = targetUnit.toLowerCase();
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if (!conversions[targetUnitNormalized]) {
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throw new Error("Cannot convert to " + targetUnit);
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}
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if (!conversions[targetUnitNormalized][sourceUnitNormalized]) {
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throw new Error("Cannot convert from " + sourceUnit + " to " + targetUnit);
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}
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var converted = conversions[targetUnitNormalized][sourceUnitNormalized] * value;
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if (precision !== false) {
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precision = Math.pow(10, parseInt(precision) || 5);
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return Math.round(converted * precision) / precision;
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}
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return converted;
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}
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var _default = convertUnit;
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exports.default = _default;
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module.exports = exports.default; |