112 lines
3.1 KiB
Go
112 lines
3.1 KiB
Go
package coryCommon
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import (
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"fmt"
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"github.com/golang/geo/s2"
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toolTurf "github.com/tiger1103/gfast/v3/api/v1/common/tool/turf"
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"github.com/tomchavakis/geojson/geometry"
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"github.com/tomchavakis/turf-go"
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)
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// DetailedMap shp文件数据
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type DetailedMap struct {
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Positions []struct {
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Lng float64 `json:"lng"`
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Lat float64 `json:"lat"`
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Alt float64 `json:"alt"`
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} `json:"positions"`
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Width string `json:"width"`
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Color string `json:"color"`
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Alpha string `json:"alpha"`
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Name string `json:"name"`
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Property string `json:"property"`
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TxtMemo string `json:"TxtMemo"`
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ShapeLeng string `json:"Shape_Leng"`
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ShapeArea string `json:"Shape_Area"`
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Range struct {
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MinX float64 `json:"min_x"`
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MinY float64 `json:"min_y"`
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MaxX float64 `json:"max_x"`
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MaxY float64 `json:"max_y"`
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} `json:"range"`
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}
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// RectangularFrameRange 是否在矩形框范围内，是否在打卡范围内
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func RectangularFrameRange(dataInfo DetailedMap, locationLng float64, locationLat float64) (flag bool) {
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//1、组装数据 84坐标
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polygon := [][]float64{}
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for _, data := range dataInfo.Positions {
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polygon = append(polygon, []float64{data.Lng, data.Lat})
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}
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//3、判断位置
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distance := toolTurf.BooleanPointInPolygon([]float64{locationLng, locationLat}, polygon)
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if distance {
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fmt.Println("点在矩形框内")
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return true
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} else {
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fmt.Println("点在矩形框外")
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return false
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}
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}
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// FEIQI_RectangularFrameRange 是否在矩形框范围内，是否在打卡范围内 ！！！！！！！！！！！！！！！！！有问题
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func FEIQI_RectangularFrameRange(dataInfo DetailedMap, locationLng float64, locationLat float64) (flag bool) {
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//1、组装数据
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var pl geometry.Polygon
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var ls []geometry.LineString
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var pt []geometry.Point
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for _, data := range dataInfo.Positions {
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wgs84 := LatLng{Latitude: data.Lat, Longitude: data.Lng}
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t1 := WGS84ToEPSG900913(wgs84)
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var p geometry.Point
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p.Lng = t1.Latitude
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p.Lat = t1.Longitude
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pt = append(pt, p)
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}
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var lsTwo geometry.LineString
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lsTwo.Coordinates = pt
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ls = append(ls, lsTwo)
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pl.Coordinates = append(pl.Coordinates, lsTwo)
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//2、当前人所在位置
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locationLng, locationLat = GCJ02toWGS84(locationLng, locationLat)
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wgs84 := LatLng{Latitude: locationLng, Longitude: locationLat}
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t1 := WGS84ToEPSG900913(wgs84)
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myPoint := geometry.Point{
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Lng: t1.Longitude,
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Lat: t1.Latitude,
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}
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//3、判断myPoint是否在pl框内
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distance, _ := turf.PointInPolygon(myPoint, pl)
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if distance {
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fmt.Println("点在矩形框内")
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return true
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} else {
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fmt.Println("点在矩形框外")
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return false
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}
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}
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type LatLng struct {
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Latitude float64
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Longitude float64
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}
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// WGS84ToEPSG900913 将WGS84坐标转换为EPSG-900913坐标
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func WGS84ToEPSG900913(wgs84 LatLng) LatLng {
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// 将WGS84坐标转换为s2.LatLng
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ll := s2.LatLngFromDegrees(wgs84.Latitude, wgs84.Longitude)
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// 创建s2.Point
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p := s2.PointFromLatLng(ll)
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// 计算EPSG-900913坐标
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//epsgX, epsgY := p.Normalize()
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normalize := p.Normalize()
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// 将坐标范围映射到EPSG-900913的范围
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epsgX := normalize.X * 20037508.34 / 180.0
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epsgY := normalize.Y * 20037508.34 / 180.0
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return LatLng{Latitude: epsgY, Longitude: epsgX}
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}
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