13 lines
580 B
JavaScript
13 lines
580 B
JavaScript
// 计算距离
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export const getDistance = (la1, lo1, la2, lo2) => { // 当前的纬度，当前的经度，接口拿到的纬度，接口拿到的经度
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let La1 = la1 * Math.PI / 180.0;
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let La2 = la2 * Math.PI / 180.0;
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let La3 = La1 - La2;
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let Lb3 = lo1 * Math.PI / 180.0 - lo2 * Math.PI / 180.0;
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let distance = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(La3 / 2), 2) + Math.cos(La1) * Math.cos(La2) *
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Math.pow(Math.sin(Lb3 / 2), 2)));
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distance = distance * 6378.137;
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distance = Math.round(distance * 10000) / 10000;
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return distance;
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}
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