amap-shapes-generator/index.js

import { createSelector } from 'reselect';
import Global from './Common';
import {
    latLngDegreesToDecimal,
    latLngDecimalToDegrees,
    isObject,
    isSafeString
} from './Utils'
let LatLon = require('geodesy').LatLonSpherical;

function getCircleRegions(circle) {
    let latlon = new LatLon(circle.coordinate.latitude, circle.coordinate.longitude)
    let d1 = latlon.destinationPoint(circle.radius, 0)
    let d2 = latlon.destinationPoint(circle.radius, 90)
    let d3 = latlon.destinationPoint(circle.radius, 180)
    let d4 = latlon.destinationPoint(circle.radius, 270)
    return [{ lat: d1.lat, lng: d1.lon }, { lat: d2.lat, lng: d2.lon }, { lat: d3.lat, lng: d3.lon }, { lat: d4.lat, lng: d4.lon }]
}

function getDefaultStyle() {
    let imageName = 'BA_oval'
    let lineWidth = Global.amapLineWidth
    let strokeColor = Global.amapStrokeColor
    let fillColor = Global.amapFillColor

    return {imageName, lineWidth, strokeColor, fillColor}
}

function getCircles(airspaceInfos, setStyle, currentAirspaceIndex) {
    let circles = [];
    if (!Array.isArray(airspaceInfos)) {
        return circles;
    }

    let {lineWidth, strokeColor, fillColor} = getDefaultStyle()
    //通过该方法获取样式
    let circleStyle = setStyle('circle');
    if(circleStyle) {
        lineWidth = circleStyle.lineWidth
        strokeColor = circleStyle.strokeColor
        fillColor = circleStyle.fillColor
    }


    for (let i = 0; i < airspaceInfos.length; i++) {
        let tmpCircle = airspaceInfos[i]
        let airspaceTypeFix, radiusFix
        if (tmpCircle.airspaceType) {
            airspaceTypeFix = 'airspaceType';
            radiusFix = 'radius'
        } else {
            airspaceTypeFix = 'airspace_type';
            radiusFix = 'radius_of_flying'
        }

        if (tmpCircle[airspaceTypeFix] == Global.airspaceType.circle && currentAirspaceIndex != i) {

            let coordinate = {};
            if (tmpCircle.center_point_of_flying) {
                coordinate.latitude = tmpCircle.center_point_of_flying.lat;
                coordinate.longitude = tmpCircle.center_point_of_flying.lng;
            } else {
                coordinate.latitude = latLngDegreesToDecimal(tmpCircle.lat);
                coordinate.longitude = latLngDegreesToDecimal(tmpCircle.lng);
            }

            let radius = tmpCircle[radiusFix];
            let circle = {lineWidth, strokeColor, fillColor, radius, coordinate}
            circles.push(circle);
        }
    }

    return circles;
}

function getCircleSelector(airspaceInfos, setStyle, currentAirspaceIndex) {
    return createSelector(
        airspaceInfos,
        () => setStyle,
        currentAirspaceIndex,
        getCircles
    );
}

function getLatLng(latlng, dataType) {
    if(dataType == 1) { // 驼峰模式，新建计划的时候的格式
        return latLngDegreesToDecimal(latlng)
    } else {
        return latlng
    }
}

function drawLineConfig(lat, lng, dataType) {
    return {
        latitude: getLatLng(lat, dataType),
        longitude: getLatLng(lng, dataType)
    };
}

function addOvalPointConfig(lat, lng, imageName, dataType) {
    return {
        coordinate: {
            latitude: getLatLng(lat, dataType),
            longitude: getLatLng(lng, dataType)
        },
        imageName: imageName
    };
}

function pointCompare(point1, point2, isStrict) {
    const pointId1 = point1.point_id || point1.pointId;
    const pointId2 = point2.point_id || point2.pointId;

    if(pointId1 == pointId2) {
        return true;
    } else if(isStrict) {
        return false;
    }

    let [point1Lat, point1lng] = getFixedLatLng(point1)
    let [point2lat, point2lng] = getFixedLatLng(point2)

    if(myRound(point1Lat) == myRound(point2lat)
       && myRound(point1lng) == myRound(point2lng)) {
        return true
    } else {
        return false
    }
}


function getCrossPoint(points1, points2) {
    for(let point1 of points1) {
        for(let point2 of points2) {
            if (pointCompare(point1, point2, true))
                return point1
        }
    }
}

function getAirwayPoints(airway, pointBefore, pointAfter) {
    let found = 0
    let points = []

    let pointTypeFix, pointsFix

    if ('points' in airway) {
        pointTypeFix = 'point_type';
        pointsFix = 'points'
    } else {
        pointTypeFix = 'pointType'
        pointsFix = 'airlines'
    }

    // 如果前后是其他航线，那么找到交叉点作为前后的点
    if ( pointBefore[pointTypeFix] == Global.pointTypes.line ) {
        pointBefore = getCrossPoint(airway[pointsFix], pointBefore[pointsFix])
    }

    if(pointAfter[pointTypeFix] == Global.pointTypes.line) {
        pointAfter = getCrossPoint(airway[pointsFix], pointAfter[pointsFix])
    }

    for (let point of airway[pointsFix]) {
        if (pointCompare(pointBefore, point) || pointCompare(pointAfter, point)) {
            found++
            points.push(Object.assign({}, point))
            continue
        }

        if (found == 1) {
            points.push(Object.assign({}, point))
        }
    }

    if (!(points.length > 0 && found == 2)) {
        // 如果两个点不全在航线上面，那么画全部航线
        points = airway[pointsFix]
    }

    return points;
}



function getLinesRouter(lineProps, lineAndMarkerStyle) {
    let coordinates = new Array();
    let markers = new Array();
    let lines = []

    let {imageName, lineWidth, strokeColor} = getDefaultStyle()

    if (lineAndMarkerStyle) {
        imageName = lineAndMarkerStyle.imageName
        lineWidth = lineAndMarkerStyle.lineWidth
        strokeColor = lineAndMarkerStyle.strokeColor
    }

    let startPoint, passPoints, endPoint, pointTypeFix, dataType, airlineWidth

    if (lineProps.start_point) {
        dataType = 2 // 下划线模式

        startPoint = lineProps['start_point']
        passPoints = lineProps['passing_points']
        endPoint = lineProps['end_point']
        pointTypeFix = 'point_type';
        airlineWidth = parseInt(lineProps['airline_width'], 10)
    } else {
        dataType = 1 // 驼峰模式

        startPoint = lineProps['dep']
        passPoints = lineProps['passPoints']
        endPoint = lineProps['arrive']
        pointTypeFix = 'pointType'
        airlineWidth = parseInt(lineProps['airlineWidth'], 10)
    }

    if (startPoint) {
        coordinates.push(drawLineConfig(startPoint.lat, startPoint.lng, dataType));
        markers.push(addOvalPointConfig(startPoint.lat, startPoint.lng, imageName, dataType));
    }

    if (Array.isArray(passPoints)) {
        for (let i = 0; i < passPoints.length; i++) {
            let obj = passPoints[i]
            if (!isObject(obj)) { // 所有的 points/airway 都必须是 obj
                continue;
            }

            let pointType = obj[pointTypeFix]
            if ( pointType == Global.pointTypes.point
                || pointType == Global.pointTypes.nav) {
                coordinates.push(drawLineConfig(obj.lat, obj.lng, dataType));
                markers.push(addOvalPointConfig(obj.lat, obj.lng, imageName, dataType));
            } else {
                // 遇到一个航线，不需要和前前面的点连起来
                if (coordinates.length > 1) {
                    lines.push({lineWidth, strokeColor, coordinates})
                }

                coordinates = []

                const pointBefore = i == 0 ? startPoint : passPoints[i - 1]
                const pointAfter = i == passPoints.length - 1 ? endPoint : passPoints[i + 1]

                lines.push({lineWidth, strokeColor, coordinates: getAirwayPoints(obj, pointBefore, pointAfter)})
            }
        }
    }

    if (endPoint) {
        coordinates.push(drawLineConfig(endPoint.lat, endPoint.lng, dataType));
        markers.push(addOvalPointConfig(endPoint.lat, endPoint.lng, imageName, dataType));
    }

    if (coordinates.length > 1) {
        lines.push({lineWidth, strokeColor, coordinates});
    }
    if(airlineWidth > 0) {
        // 有宽度的空域，需要线周围多画宽度的多边形
        let polygons = processAirlineWidth(lines, airlineWidth)
        return { lines, markers, polygons };
    } else {
        return { lines, markers, polygons: [] };
    }
}

function getFixedLatLng(point) {
    let lat = point.latitude ? point.latitude : point.lat
    let lng = point.longitude ? point.longitude : point.lng
    return [lat, lng]
}

function processAirlineWidth(lines, airlineWidth) {
    let polygons = []
    let {strokeColor, fillColor} = getDefaultStyle()

    for(let line of lines) {
        let points = line.coordinates

        for(let i=0; i<points.length-1; i++) {
            let [lat1, lng1] = getFixedLatLng(points[i])
            let [lat2, lng2] = getFixedLatLng(points[i+1])
            let point1 = new LatLon(lat1, lng1)
            let point2 = new LatLon(lat2, lng2)

            let coordinates = getCirclePoints(point1, point2, airlineWidth)
            polygons.push({lineWidth: 1, strokeColor, fillColor, coordinates})
        }
    }
    return polygons
}

function getCirclePoints(point1, point2, width) {
    let percision = 10 // 半圆处理为多边形的时候，半圆上取几个点
    let step = 180/percision
    let bearing = (360 + point1.bearingTo(point2) - 90) % 360 // 取正值
    let points = []
    for(let diff = 0; diff <= 180; diff += step) {
        let point = point2.destinationPoint(width, bearing + diff)
        points.push({lat: point.lat, lng: point.lon})
    }

    for(let diff = 180; diff <= 360; diff += step) {
        let point = point1.destinationPoint(width, bearing + diff)
        points.push({lat: point.lat, lng: point.lon})
    }
    return points
}

function myRound(num, digits) {
    if(digits == null)
        digits = 6 // 比较的精度，经纬度会被经过度分秒方式到浮点方式的转化

    let tmpNum = num;
    if(isSafeString(tmpNum)) {      // 驼峰模式，起始点和目的地是度数模式 如 38°35′17″
        tmpNum = latLngDegreesToDecimal(tmpNum);
    }

    return Math.round(tmpNum * Math.pow(10, digits)) / Math.pow(10, digits)
}

function getLinesPolygonsAndMarkers(airspaceInfos, setStyle, currentAirspaceIndex) {
    let retLines = [];
    let retMarkers = [];
    let retPolygons = [];
    if (!Array.isArray(airspaceInfos)) {
        return { lines: retLines, markers: retMarkers, polygons: retPolygons };
    }
    let lineStyle = setStyle('line');
    for (let i = 0; i < airspaceInfos.length; i++) {
        let tmpLine = airspaceInfos[i]
        let airspaceTypeFix;
        if (tmpLine.airspaceType)
            airspaceTypeFix = 'airspaceType';
        else
            airspaceTypeFix = 'airspace_type';
        if (tmpLine[airspaceTypeFix] == Global.airspaceType.line && currentAirspaceIndex != i) {
            let { lines, markers, polygons } = getLinesRouter(tmpLine, lineStyle);
            retMarkers.push(...markers);
            retLines.push(...lines);
            retPolygons.push(...polygons)
        }
    }

    return { lines: retLines, markers: retMarkers, polygons: retPolygons };
}


function getLinePolygonsAndMarkerSelector(airspaceInfos, setStyle, currentAirspaceIndex) {
    return createSelector(
        airspaceInfos,
        () => setStyle,
        currentAirspaceIndex,
        getLinesPolygonsAndMarkers
    );
}

function getPolygon(polygonProps, polygonAndMarkerStyle) {
    let coordinates = new Array();
    let markers = new Array();

    let {imageName, lineWidth, strokeColor, fillColor} = getDefaultStyle()

    if (polygonAndMarkerStyle) {
        imageName = polygonAndMarkerStyle.imageName
        lineWidth = polygonAndMarkerStyle.lineWidth
        strokeColor = polygonAndMarkerStyle.strokeColor
        fillColor = polygonAndMarkerStyle.fillColor
    }

    let pointsFix, dataType;
    if (polygonProps.points) {
        pointsFix = 'points';
        dataType = 2
    } else {
        pointsFix = 'polygonPoints';
        dataType = 1 // 驼峰模式
    }

    if (Array.isArray(polygonProps[pointsFix])) {
        for (let obj of polygonProps[pointsFix]) {
            coordinates.push(drawLineConfig(obj.lat, obj.lng, dataType));
            markers.push(addOvalPointConfig(obj.lat, obj.lng, imageName, dataType));
        }
    }

    let polygon = {lineWidth, strokeColor, fillColor, coordinates};

    return { markers, polygon };

}


function getPolygonsAndMarkers(airspaceInfos, setStyle, currentAirspaceIndex) {
    let markers = [];
    let polygons = [];
    if (!Array.isArray(airspaceInfos)) {
        return { markers, polygons };
    }
    let polygonAndMarkerStyle = setStyle('polygon');
    for (let i = 0; i < airspaceInfos.length; i++) {
        let polygon = airspaceInfos[i]
        let airspaceTypeFix;
        if (polygon.airspaceType)
            airspaceTypeFix = 'airspaceType';
        else
            airspaceTypeFix = 'airspace_type';

        if (polygon[airspaceTypeFix] == Global.airspaceType.polygon && currentAirspaceIndex != i) {
            let retObj = getPolygon(polygon, polygonAndMarkerStyle);
            markers.push(...retObj.markers);
            polygons.push(retObj.polygon);
        }
    }
    return { markers, polygons };

}

function getPolygonAndMarkerSelector(airspaceInfos, setStyle, currentAirspaceIndex) {
    return createSelector(
        airspaceInfos,
        () => setStyle,
        currentAirspaceIndex,
        getPolygonsAndMarkers
    );
}

function getMarkers(polygonAndMarkers, lineAndMarkers) {
    let markers = [];
    if (polygonAndMarkers) {
        markers = [...polygonAndMarkers.markers]
    }
    if (lineAndMarkers) {
        markers = [...markers, ...lineAndMarkers.markers]
    }
    return markers
}

function getMarkerSelector(polygonAndMarkers, lineAndMarkers) {
    return createSelector(
        polygonAndMarkers,
        lineAndMarkers,
        getMarkers
    )
}

function getRegionPoints(circles, lineAndMarkers, polygonAndMarkers) {
    let regionPoints = new Array();

    for (let i = 0; i < circles.length; i++) {
        regionPoints.push(...getCircleRegions(circles[i]));
    }

    let lines = lineAndMarkers.lines;
    for (let i = 0; i < lines.length; i++) {
        regionPoints.push(...lines[i].coordinates);
    }

    let polygons = polygonAndMarkers.polygons;
    for (let i = 0; i < polygons.length; i++) {
        regionPoints.push(...polygons[i].coordinates);
    }

    return regionPoints;
}

function getRegionPointsSelector(circles, lineAndMarkers, polygonAndMarkers) {
    return createSelector(
        circles,
        lineAndMarkers,
        polygonAndMarkers,
        getRegionPoints
    );
}

function getLines(lineAndMarker) {
    return lineAndMarker.lines;
}

function getLineSelector(lineAndMarker) {
    return createSelector(
        lineAndMarker,
        getLines
    );
}

function getPolygons(polygonAndMarkers, linePolygonsAndMarkers) {
    return [...polygonAndMarkers.polygons, ...linePolygonsAndMarkers.polygons];
}

function getPolygonSelector(polygonAndMarkers, linePolygonsAndMarkers) {
    return createSelector(
        polygonAndMarkers,
        linePolygonsAndMarkers,
        getPolygons
    );
}

let setStyle = (style) => {
    if (!style)
        return () => { return null }
    else
        return (shapeName) => style[shapeName]
}

//获取selector
export function getShapesSelector(airspaceInfos, style, currentAirspaceIndex) {
    currentAirspaceIndex = currentAirspaceIndex ? currentAirspaceIndex : () => -1;
    let circles = getCircleSelector(airspaceInfos, setStyle(style), currentAirspaceIndex);
    let linePolygonsAndMarkers = getLinePolygonsAndMarkerSelector(airspaceInfos, setStyle(style), currentAirspaceIndex);
    let lines = getLineSelector(linePolygonsAndMarkers);
    let polygonAndMarkers = getPolygonAndMarkerSelector(airspaceInfos, setStyle(style), currentAirspaceIndex);
    let polygons = getPolygonSelector(polygonAndMarkers, linePolygonsAndMarkers);
    let markers = getMarkerSelector(polygonAndMarkers, linePolygonsAndMarkers);
    let regionPoints = getRegionPointsSelector(circles, linePolygonsAndMarkers, polygonAndMarkers);
    return {
        markers,
        circles,
        lines,
        polygons,
        regionPoints
    }
}

//获取数组
export function getShapes(airspaceInfos, style, currentAirspaceIndex) {
    let {markers, polygons, circles, lines, regionPoints} =
        getShapesSelector((airspaceInfos)=>airspaceInfos, style, (currentAirspaceIndex)=>currentAirspaceIndex)
    return {
        markers: markers(airspaceInfos),
        circles: circles(airspaceInfos),
        lines: lines(airspaceInfos),
        polygons: polygons(airspaceInfos),
        regionPoints: regionPoints(airspaceInfos)
    }
}

// 总共 5 种格式, http://git.corp.brilliantaero.com/BA/Coco/issues/99#note_6358
// 1. 全输出格式
// 2. 简化格式
// 3. 传真格式
// 4. 用户端用的简化格式
// 5. 极简格式

function getHeight(num, unit, type) {
    let shortNum
    if(num >= 100) {
        shortNum = parseInt(num/100).toString()
        if(shortNum.length <2) {
            shortNum = '0' + shortNum
        }
    }

    let heightStandard  = Global.heightStandardsById.get(unit)
    if(!heightStandard) {
        heightStandard = unit
    }

    // 这里统一使用数字判断
    let standardUnit = Global.heightStandards.get(heightStandard)
    let heightDesc
    switch(standardUnit) {
        case 1:
            heightDesc = ['H*真', '真高*米']
            break;
        case 2:
            heightDesc = ['H*标(含以下)', '标高*米(含以下)']
            break;
        case 3:
            heightDesc = ['H*真(含以下)', '标高*米(含以下)']
            break;
        default:
            heightDesc = ['H*标', '标高*米']
    }
    if(shortNum && (type == 1 || type == 2)) {
        // H02真，H02真(含以下)
        return heightDesc[0].replace('*', shortNum)
    } else {
        // 真高200米，真高200米(含以下)
        return heightDesc[1].replace('*', num)
    }
}

function getAirspaceName(airspaceInfo) {
    if(airspaceInfo.airspace_name) {
        return airspaceInfo.airspace_name
    } else {
        return airspaceInfo.name
    }
}

export function circleContent(airspaceInfo, type=3) {
    if(type == 5)
        return getAirspaceName(airspaceInfo)

    if('airspace_name' in airspaceInfo) {
        const lat = latLngDecimalToDegrees(airspaceInfo.center_point_of_flying.lat);
        const lng = latLngDecimalToDegrees(airspaceInfo.center_point_of_flying.lng);
        let content = [];
        let loc = `以${airspaceInfo.center_loc}`
        if(type == 1 || type == 3)
            loc += `(E${lng}, N${lat})`;
        content.push(`${loc}为中心`)
        content.push(`半径${airspaceInfo.radius_of_flying}米`);
        content.push(getHeight(airspaceInfo.altitude, airspaceInfo.unit, type))
        if (airspaceInfo.note)
            content.push(`备注：${airspaceInfo.note}`)

        let result = content = content.join('，');
        return result;
    } else {
        let content = []
        let loc = `以${airspaceInfo.addr}`
        if(type == 1 || type == 3)
            loc += `(E${airspaceInfo.lng}, N${airspaceInfo.lat})`;
        content.push(`${loc}为中心`)
        content.push(`半径${airspaceInfo.radius}米`);
        content.push(getHeight(airspaceInfo.height, airspaceInfo.heightStandard, type))
        if (airspaceInfo.note)
            content.push(`备注：${airspaceInfo.note}`)
        content = content.join('，');
        return content;
    }
}

function flyingCenter(item = {}){
    if(item == {}){
        return ;
    } else {
        return (
            "(E" + latLngDecimalToDegrees(item.lng) +
            ', ' +
            "N" + latLngDecimalToDegrees(item.lat) + ")"
        );
    }
}

export function lineContent(airspaceInfo, type=3) {
    if(type == 5)
        return getAirspaceName(airspaceInfo)

    if('airspace_name' in airspaceInfo) {
        let content = [];
        content.push(`${airspaceInfo.start_loc}`)
        if(type == 1 || type == 3)
            content.push(`${flyingCenter(airspaceInfo.start_point)}`)
        content.push(` - `)
        content.push(getHeight(airspaceInfo.start_point.altitude, airspaceInfo.start_point.unit, type))

        const passing_points = airspaceInfo.passing_points;

        if(Array.isArray(passing_points)) {
            for(let i = 0; i < passing_points.length; i++) {
                const obj = passing_points[i];
                const lat = latLngDecimalToDegrees(obj.lat)
                const lng = latLngDecimalToDegrees(obj.lng)
                if (obj.point_type == Global.pointTypes.point) {
                    content.push(` - ${obj.point_name}`)
                    if(type == 1 || type == 3)
                        content.push(`(E${lng}, N${lat})`)
                } else if (obj.point_type == Global.pointTypes.nav) {
                    content.push(` - ${obj.point_code}`)
                    if(type == 1 || type == 3)
                        content.push(`(E${lng}, N${lat})`)
                } else {
                    content.push(` - ${obj.air_route_code}`)
                }

                if(obj.altitude) {
                    content.push(` - ${getHeight(obj.altitude, obj.unit, type)}`)
                }
            }
        }

        content.push(` - ${airspaceInfo.end_loc}`)
        if(type == 1 || type == 3)
            content.push(`${flyingCenter(airspaceInfo.end_point)}`)

        if(isSafeString(airspaceInfo.airline_width)) {
            content.push(`，宽度：${airspaceInfo.airline_width}米`)
        }

        if(isSafeString(airspaceInfo.note)) {
            content.push(`，备注： ${airspaceInfo.note}`)
        }

        let result = content.join("")
        return result;
    } else {
        let content = [];
        content.push(`${airspaceInfo.dep.addr}`)
        if(type == 1 || type == 3)
            content.push(`(E${airspaceInfo.dep.lng}, N${airspaceInfo.dep.lat})`)
        content.push(` - ${getHeight(airspaceInfo.dep.height, airspaceInfo.dep.heightStandard, type)}`);

        if (Array.isArray(airspaceInfo.passPoints)) {
            let length = airspaceInfo.passPoints.length;
            for (let i = 0; i < length; i++) {
                let obj = airspaceInfo.passPoints[i];
                if (obj.pointType == Global.pointTypes.point) {
                    content.push(` - ${obj.addr}`)
                    if(type == 1 || type == 3)
                        content.push(`(E${obj.lng}, N${obj.lat})`);
                } else if (obj.pointType == Global.pointTypes.nav) {
                    content.push(` - ${obj.pointCode}`)
                    if(type == 1 || type == 3)
                        content.push(`(E${obj.lng}, N${obj.lat})`);
                } else {
                    content.push(` - ${obj.airlineCode}`);
                }

                if(obj.height) {
                    content.push(` - ${getHeight(obj.height, obj.heightStandard, type)}`)
                }
            }
        }
        content.push(` - ${airspaceInfo.arrive.addr}`)
        if(type == 1 || type == 3)
            content.push(`(E${airspaceInfo.arrive.lng}, N${airspaceInfo.arrive.lat})`);
        if(airspaceInfo.airlineWidth) {
            content.push(`，宽度：${airspaceInfo.airlineWidth}米`)
        }

        if (airspaceInfo.note)
            content.push(`，备注：${airspaceInfo.note}`)
        content = content.join('');
        return content;
    }
}

export function polygonContent(airspaceInfo, type=3) {
    if(type == 5)
        return getAirspaceName(airspaceInfo)

    if('airspace_name' in airspaceInfo) {
        let res = []
        let points = airspaceInfo.points
        for (let i = 0; i < points.length; i++) {
            let c = `${points[i].addr ? points[i].addr : ''}`
            if(type == 1 || type == 3)
                c += `(E${latLngDecimalToDegrees(points[i].lng)}, N${latLngDecimalToDegrees(points[i].lat)})`;
            res.push(c)
        }

        let content = [res.join('、')]
        content.push(`${airspaceInfo.points.length}点连线范围内`)
        content.push(`，${getHeight(airspaceInfo.altitude, airspaceInfo.unit, type)}`)
        if(isSafeString(airspaceInfo.note)) {
            content.push(`，备注：${airspaceInfo.note}`)
        }

        return content.join('');
    } else {
        let content = [];
        let length = airspaceInfo.polygonPoints.length;
        for (let i = 0; i < length; i++) {
            let obj = airspaceInfo.polygonPoints[i];
            let c = `${obj.addr ? obj.addr : ''}`
            c += `(E${obj.lng}, N${obj.lat})`
            content.push(c)
        }
        content = content.join('、') + `${length}点连线范围内`
        content += `，${getHeight(airspaceInfo.height, airspaceInfo.heightStandard, type)}`
        if (airspaceInfo.note)
            content = `${content}，备注：${airspaceInfo.note}`
        return content;
    }
}

export {latLngDegreesToDecimal, latLngDecimalToDegrees}