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苏尹岚
2021-03-11 09:47:47 +08:00
parent f25e490867
commit dc7e916471
1 changed files with 2 additions and 2 deletions
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4
business/jxstore/report/report.go
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@@ -559,10 +559,10 @@ func CalculateCoverArea(coordinate []string, vendorID int) (area float64) {
var sum float64
for i := 0; i < len(xyList)-1; i++ {
// sum += (xyList[i+1][0] - xyList[i][0]) * (xyList[i+1][1] + xyList[i][1])
sum += xyList[i][0]*xyList[i+1][1] - xyList[i+1][0]*xyList[i][1]
sum += (xyList[i][0]*xyList[i+1][1] - xyList[i+1][0]*xyList[i][1])
}
// sum += (xyList[0][0] - xyList[len(xyList)-1][0]) * (xyList[0][1] + xyList[len(xyList)-1][1])
sum += xyList[len(xyList)-1][0]*xyList[0][1] - xyList[0][0]*xyList[len(xyList)-1][1]
sum += (xyList[len(xyList)-1][0]*xyList[0][1] - xyList[0][0]*xyList[len(xyList)-1][1])
sum /= float64(2)
sum = math.Abs(sum)
sum = utils.Str2Float64(fmt.Sprintf("%.2f", sum))