- 饿百与京东拉门店数据基本OK

business/jxutils/ditu/ditu.go

@@ -0,0 +1,100 @@
+package ditu
+
+import (
+	"math"
+
+	"git.rosy.net.cn/baseapi/utils"
+	"git.rosy.net.cn/jx-callback/business/jxutils"
+	"git.rosy.net.cn/jx-callback/globals/api"
+)
+
+const (
+	keyMultiple = 1000000
+)
+
+type Coordinate struct {
+	Lng float64
+	Lat float64
+}
+
+func roundCoordinate(lng, lat float64, roundLng, roundLat int) (lng2, lat2 int) {
+	lng2 = jxutils.StandardCoordinate2Int(lng+jxutils.IntCoordinate2Standard(roundLng)/2) / roundLng * roundLng
+	lat2 = jxutils.StandardCoordinate2Int(lat+jxutils.IntCoordinate2Standard(roundLat)/2) / roundLat * roundLat
+	return lng2, lat2
+}
+
+func (c *Coordinate) GetMapKey() int64 {
+	return int64(c.Lng*keyMultiple*keyMultiple + c.Lat*keyMultiple)
+}
+
+func GetRound4Radius(lng, lat float64, gridWith int) (roundLng, roundLat int) {
+	lng2, _ := jxutils.ConvertDistanceToLogLat(lng, lat, float64(gridWith), 90)
+	_, lat2 := jxutils.ConvertDistanceToLogLat(lng, lat, float64(gridWith), 0)
+	// globals.SugarLogger.Debugf("GetRound4Radius gridWith:%d, lng:%f, lat:%f, lng2:%f, lat2:%f", gridWith, lng, lat, lng2, lat2)
+	return jxutils.StandardCoordinate2Int(math.Abs(lng2 - lng)), jxutils.StandardCoordinate2Int(math.Abs(lat2 - lat))
+}
+
+func GetGridsFromCoordinate(lng, lat float64, radius int, roundLng, roundLat int) (coordList []*Coordinate) {
+	beginLng, _ := jxutils.ConvertDistanceToLogLat(lng, lat, float64(radius), 270)
+	_, beginLat := jxutils.ConvertDistanceToLogLat(lng, lat, float64(radius), 180)
+	intBeginLng, intBeginLat := roundCoordinate(beginLng, beginLat, roundLng, roundLat)
+
+	endLng, _ := jxutils.ConvertDistanceToLogLat(lng, lat, float64(radius), 90)
+	_, endLat := jxutils.ConvertDistanceToLogLat(lng, lat, float64(radius), 0)
+	intEndLng, intEndLat := roundCoordinate(endLng, endLat, roundLng, roundLat)
+
+	for intLng := intBeginLng; intLng <= intEndLng; intLng += roundLng {
+		for intLat := intBeginLat; intLat <= intEndLat; intLat += roundLat {
+			coordList = append(coordList, &Coordinate{
+				Lng: jxutils.IntCoordinate2Standard(intLng),
+				Lat: jxutils.IntCoordinate2Standard(intLat),
+			})
+		}
+	}
+	return coordList
+}
+
+func GetDistrictCoordinateList(districtCode int, radius, gridWith int) (coordList []*Coordinate) {
+	districts, err := api.AutonaviAPI.GetDistricts(0, utils.Int2Str(districtCode))
+	if err == nil {
+		if len(districts) > 0 {
+			roundLng, roundLat := GetRound4Radius(districts[0].Lng, districts[0].Lat, gridWith)
+			for _, district := range districts {
+				coordList = append(coordList, GetGridsFromCoordinate(district.Lng, district.Lat, radius, roundLng, roundLat)...)
+			}
+		}
+	}
+	return coordList
+}
+
+func GetCityCoordinateList(cityCode int, radius, gridWith int) (coordList []*Coordinate) {
+	districts, err := api.AutonaviAPI.GetDistricts(1, utils.Int2Str(cityCode))
+	if err == nil {
+		coordMap := make(map[int64]*Coordinate)
+		if len(districts) > 0 {
+			roundLng, roundLat := GetRound4Radius(districts[0].Lng, districts[0].Lat, gridWith)
+			for _, district := range districts {
+				nextLevelAllFailed := true // 表示下级行政区的中心坐标都拿不到
+				for _, v := range district.Districts {
+					if v.Lng > 0 && v.Lat > 0 {
+						// nextLevelAllFailed = false
+						coordList := GetGridsFromCoordinate(v.Lng, v.Lat, radius, roundLng, roundLat)
+						for _, coord := range coordList {
+							coordMap[coord.GetMapKey()] = coord
+						}
+					}
+				}
+				if nextLevelAllFailed {
+					coordList := GetGridsFromCoordinate(district.Lng, district.Lat, radius*3, roundLng, roundLat)
+					for _, coord := range coordList {
+						coordMap[coord.GetMapKey()] = coord
+					}
+				}
+			}
+		}
+		for _, coord := range coordMap {
+			coordList = append(coordList, coord)
+		}
+	}
+	return coordList
+}