~jinersong/ruleprocess.git

			@@ -2,6 +2,7 @@

			import (
			"math"
			"ruleprocess/structure"
			)

			func min(num1 float64, num2 float64) float64 {
			@@ -17,12 +18,6 @@
			return num2
			}
			return num1
			}

			//Point 坐标点
			type Point struct {
			X float64 `json:"x"`
			Y float64 `json:"y"`
			}

			//Rect 检测目标
			@@ -42,7 +37,7 @@
			//PintIsInPolygon 判断点是否在多边形内部
			//point为要判断的坐标点
			//polygon是多边形各点数组
			func pintIsInPolygon(point Pointfloat, polygon []Point, widthScale float64, heightScale float64) bool {
			func PintIsInPolygon(point structure.Pointfloat, polygon []structure.Point, widthScale float64, heightScale float64) bool {
			var nCross int = 0
			for i := 0; i < len(polygon); i++ {

			@@ -72,17 +67,17 @@
			}

			//GetLocation 将一个给定起始坐标，宽度长度的矩形区域均分为n方份并返回中心坐标（n为单边平分数值）和面积
			func getLocation(rect Rect, n int) ([]Pointfloat, float64) {
			func GetLocation(rect structure.Rect, n int) ([]structure.Pointfloat, float64) {
			xArr := make([]float64, n) // 用切片不用数组，数组不能用变量定义长度
			yArr := make([]float64, n)
			pointArr := make([]Pointfloat, 0, n*n)
			pointArr := make([]structure.Pointfloat, 0, n*n)
			for i := 0; i < n; i++ {
			xArr[i] = rect.X + (rect.Width/float64(2n))float64(2*i+1)
			yArr[i] = rect.Y + (rect.Height/float64(2n))float64(2*i+1)
			}
			for i := 0; i < n; i++ {
			for j := 0; j < n; j++ {
			point := Pointfloat{X: xArr[i], Y: yArr[j]}
			point := structure.Pointfloat{X: xArr[i], Y: yArr[j]}
			pointArr = append(pointArr, point)
			}
			}
			@@ -91,7 +86,7 @@
			}

			//ComputePolygonArea 计算任意多边形面积
			func computePolygonArea(polygon []Point) float64 {
			func ComputePolygonArea(polygon []structure.Point) float64 {
			pointNum := len(polygon)
			var s float64 = 0
			if pointNum < 3 {
			@@ -105,18 +100,18 @@
			}

			//PgsInterPercent calculate percent of two polygon intersection 计算两个多边形的重叠占比
			func PgsInterPercent(pgpts []Point, box Rect, widthScale float64, heightScale float64) (percent float64) {
			func PgsInterPercent(pgpts []structure.Point, box structure.Rect, widthScale float64, heightScale float64) (percent float64) {

			areapts, areaBox := getLocation(box, 10)
			areapts, areaBox := GetLocation(box, 10)
			var count = 0
			for _, pts := range areapts {
			if pintIsInPolygon(pts, pgpts, widthScale, heightScale) {
			if PintIsInPolygon(pts, pgpts, widthScale, heightScale) {
			count++
			}
			}
			perInterBox := float64(count) / float64(len(areapts)) // 重合面积占矩形的比例
			areaInter := perInterBox * areaBox
			areaPg := computePolygonArea(pgpts)
			areaPg := ComputePolygonArea(pgpts)
			perInterPg := areaInter / areaPg // 重合面积占多边形区域的比例
			// 哪个占的比例大按哪个计算
			if perInterBox > perInterPg {