27 lines
527 B
JavaScript
27 lines
527 B
JavaScript
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/**
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* Get step out of the set
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*
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* @module mumath/step
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*/
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'use strict';
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var lg = require('./log10');
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module.exports = function (minStep, srcSteps) {
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var power = Math.floor(lg(minStep));
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var order = Math.pow(10, power);
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var steps = srcSteps.map(v => v*order);
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order = Math.pow(10, power+1);
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steps = steps.concat(srcSteps.map(v => v*order));
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//find closest scale
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var step = 0;
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for (var i = 0; i < steps.length; i++) {
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step = steps[i];
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if (step >= minStep) break;
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}
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return step;
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};
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