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苏尹岚
2021-03-09 11:17:09 +08:00
parent 767e3c1441
commit 9d8377d453
1 changed files with 4 additions and 4 deletions
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business/jxutils/jxutils.go
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@@ -270,10 +270,10 @@ func WalkingDistance(lng1, lat1, lng2, lat2 float64) (distance float64) {
//经纬度坐标转换到平面坐标 //经纬度坐标转换到平面坐标
func MillierConvertion(lat float64, lon float64) [2]float64 { func MillierConvertion(lat float64, lon float64) [2]float64 {
var L, H, W, temp, mill, x, y float64 var L, H, W, temp, mill, x, y float64
L = 6381372 * math.Pi * 2 //地球周长 L = 6371.393 * math.Pi * 2 //地球周长
W = L // 平面展开后，x轴等于周长 W = L // 平面展开后，x轴等于周长
H = L / 2 // y轴约等于周长一半 H = L / 2 // y轴约等于周长一半
mill = 2.3 // 米勒投影中的一个常数，范围大约在正负2.3之间 mill = 2.3 // 米勒投影中的一个常数，范围大约在正负2.3之间
temp = math.Pi temp = math.Pi
x = lon * temp / 180 // 将经度从度数转换为弧度 x = lon * temp / 180 // 将经度从度数转换为弧度
y = lat * temp / 180 // 将纬度从度数转换为弧度 y = lat * temp / 180 // 将纬度从度数转换为弧度