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OpenLayers | 3. 실시간 내 위치, 내 좌표 추적 (GeoLocation)

OpenLayers | 3. 실시간 내 위치, 내 좌표 추적 (GeoLocation)

배경지도 : Google, Vworld, Naver, Daum(Kakao)

좌표계 : 경위도, 구글, UTM-K, 중부원점



다양한 배경지도 위에

내 위치(좌표), 속도, 방향, 고도를 추적하는

오픈레이어스(OpenLayers) GeoLocation 예제입니다.




1. 예제 결과(Example Result)

좌표 :
속도 :
방향 :
고도 :
좌표계 :
배경지도 :



2. 예제 소스(Example Source)


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<html>
<head>
 
    <!-- jquery -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
 
<!-- openlayers -->
<link rel="stylesheet" href="https://openlayers.org/en/v4.6.5/css/ol.css" type="text/css">
<script src="https://openlayers.org/en/v4.6.5/build/ol.js"></script>
 
<!-- proj4js-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.6.2/proj4.js"></script>
 
    <style>
        body {
            margin: 0;
        }
        .map {
            width: 100%;
            height: 100%;
            position: relative;
        }
        #location {
            position: absolute;
            width: 100%;
            /* right: 10px; */
            bottom: 0px;
              padding: 10px;
              box-sizing: border-box;
            z-index: 1;
              background-color: rgba(0,0,0,0.6);
              font-size: 12px;
        }
  
          #location span, #location label {
            color: #ffffff;
              font-size: 12px;
        }
 
    </style>
 
    <script>
    
        // dom ready
        $(document).ready(function() {
            init();
        });
    
        function init() {
 
            // 좌표계 설정
            initProj();
        
            // map 생성
            var map = new ol.Map({
                target: 'map',                          // Map 생성할 div id
                view: new ol.View({
                    center: [54300000, 4300000],        // 초기 지도 위치 좌표
                    zoom: 8                             // 초기 지도 위치 줌레벨
                }),
                logo: false,
                controls: ol.control.defaults({
                    attribution: false
                }),
            });
 
            // 풀스크린 컨트롤러
            map.addControl(new ol.control.FullScreen());
            
            // 배경지도 레이어 추가
            addBaseLayer(map);
 
            // 배경지도 선택 select
            initBaseLayerSelect(map);
 
            // Geolocation
            initGeolocation(map);;
 
        }
 
        function initProj() {
 
            // 경위도
            proj4.defs('EPSG:4326', '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs');
 
            // google 좌표계
            proj4.defs('EPSG:3857', '+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs');
 
            // UTM-K 좌표계
            proj4.defs('EPSG:5179', '+proj=tmerc +lat_0=38 +lon_0=127.5 +k=0.9996 +x_0=1000000 +y_0=2000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs');
 
            // 중부원점(Bessel)
            proj4.defs('EPSG:2097', '+proj=tmerc +lat_0=38 +lon_0=127 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs');
 
            // 보정된 중부원점(Bessel)
            proj4.defs('EPSG:5174', '+proj=tmerc +lat_0=38 +lon_0=127.0028902777778 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs +towgs84=-115.80,474.99,674.11,1.16,-2.31,-1.63,6.43');
 
            // 중부원점(GRS80) [200,000 500,000]
            proj4.defs('EPSG:5181', '+proj=tmerc +lat_0=38 +lon_0=127 +k=1 +x_0=200000 +y_0=500000 +ellps=GRS80 +units=m +no_defs');
 
            // 중부원점(GRS80) [200,000 600,000]
            proj4.defs('EPSG:5186', '+proj=tmerc +lat_0=38 +lon_0=127 +k=1 +x_0=200000 +y_0=600000 +ellps=GRS80 +units=m +no_defs');
 
        }
 
        function addBaseLayer(map) {
 
            // ------------------------------
            // google layers
            // ------------------------------
            // google road
            var googleRoadLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://mt0.google.com/vt/lyrs=m&hl=en&x={x}&y={y}&z={z}',
                    crossOrigin: 'anonymous'
                }),
                id: 'google_road',
                visible: false
            });
            map.addLayer(googleRoadLayer);
 
            // google terrain
            var googleTerrainLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://mt0.google.com/vt/lyrs=p&hl=en&x={x}&y={y}&z={z}',
                    crossOrigin: 'anonymous'
                }),
                id: 'google_terrain',
                visible: false
            });
            map.addLayer(googleTerrainLayer);
 
            // google altered road
            var googleAlteredRoadLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://mt0.google.com/vt/lyrs=r&hl=en&x={x}&y={y}&z={z}',
                    crossOrigin: 'anonymous'
                }),
                id: 'google_altered_road',
                visible: false
            });
            map.addLayer(googleAlteredRoadLayer);
 
            // google satellite
            var googleSatelliteLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://mt0.google.com/vt/lyrs=s&hl=en&x={x}&y={y}&z={z}',
                    crossOrigin: 'anonymous'
                }),
                id: 'google_satellite',
                visible: false
            });
            map.addLayer(googleSatelliteLayer);
 
            // google terrain only
            var googleTerrainOnlyLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://mt0.google.com/vt/lyrs=t&hl=en&x={x}&y={y}&z={z}',
                    crossOrigin: 'anonymous'
                }),
                id: 'google_terrain_only',
                visible: false
            });
            map.addLayer(googleTerrainOnlyLayer);
 
            // google hybrid
            var googleHybridLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://mt0.google.com/vt/lyrs=y&hl=en&x={x}&y={y}&z={z}',
                    crossOrigin: 'anonymous'
                }),
                id: 'google_hybrid',
                visible: false
            });
            map.addLayer(googleHybridLayer);
 
 
            // ------------------------------
            // OSM(OpenStreetMap)
            // ------------------------------
            // osm standard
            // var osmStandardLayer = new ol.layer.Tile({
            //     source: new ol.source.OSM()
            // });
            // map.addLayer(osmStandardLayer);
            var osmStandardLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png',
                    crossOrigin: 'anonymous'
                }),
                id: 'osm_standard',
                visible: false
            });
            map.addLayer(osmStandardLayer);
 
            // osm cyclosm
            var osmCyclosmLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://a.tile-cyclosm.openstreetmap.fr/cyclosm/{z}/{x}/{y}.png',
                    crossOrigin: 'anonymous'
                }),
                id: 'osm_cyclosm',
                visible: false
            });
            map.addLayer(osmCyclosmLayer);
 
            // osm humanitarian
            var osmHumanitarianLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://tile-{a-c}.openstreetmap.fr/hot/{z}/{x}/{y}.png',
                    crossOrigin: 'anonymous'
                }),
                id: 'osm_humanitarian',
                visible: false
            });
            map.addLayer(osmHumanitarianLayer);
 
 
            // ------------------------------
            // vworld layers
            // ------------------------------
            // vworld base
            var vworldBaseLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://xdworld.vworld.kr/2d/Base/service/{z}/{x}/{y}.png',
                    crossOrigin: 'anonymous'
                }),
                id: 'vworld_base',
                visible: false
            });
            map.addLayer(vworldBaseLayer);
 
            // vworld satellite
            var vworldSatelliteLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://xdworld.vworld.kr/2d/Satellite/service/{z}/{x}/{y}.jpeg',
                    crossOrigin: 'anonymous'
                }),
                id: 'vworld_satellite',
                visible: false
            });
            map.addLayer(vworldSatelliteLayer);
 
            // vworld hybrid
            var vworldHybridLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://xdworld.vworld.kr/2d/Hybrid/service/{z}/{x}/{y}.png',
                    crossOrigin: 'anonymous'
                }),
                id: 'vworld_hybrid',
                visible: false
            });
            map.addLayer(vworldHybridLayer);
 
            // vworld gray
            var vworldGrayLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://xdworld.vworld.kr/2d/gray/service/{z}/{x}/{y}.png',
                    crossOrigin: 'anonymous'
                }),
                id: 'vworld_gray',
                visible: false
            });
            map.addLayer(vworldGrayLayer);
 
            // vworld_midnight
            var vworldMidnightLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://xdworld.vworld.kr/2d/midnight/service/{z}/{x}/{y}.png',
                    crossOrigin: 'anonymous'
                }),
                id: 'vworld_midnight',
                visible: false
            });
            map.addLayer(vworldMidnightLayer);
 
 
            // ------------------------------
            // naver layers
            // ------------------------------
            // naver base
            var naverBaseLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://map.pstatic.net/nrb/styles/basic/1646972073/{z}/{x}/{y}@2x.png',
                    tilePixelRatio: 2,              // 타일사이즈 512일때 해상도 비율
                    crossOrigin: 'anonymous'
                }),
                id: 'naver_base',
                visible: false
            });
            map.addLayer(naverBaseLayer);
 
            // naver satellite
            var naverSatelliteLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://map.pstatic.net/nrb/styles/satellite/1646972073/{z}/{x}/{y}@2x.png',
                    tilePixelRatio: 2,              // 타일사이즈 512일때 해상도 비율
                    crossOrigin: 'anonymous'
                }),
                id: 'naver_satellite',
                visible: false
            });
            map.addLayer(naverSatelliteLayer);
 
            // naver terrain
            var naverTerrainLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:3857',
                    url : 'https://map.pstatic.net/nrb/styles/terrain/1646972073/{z}/{x}/{y}@2x.png',
                    tilePixelRatio: 2,              // 타일사이즈 512일때 해상도 비율
                    crossOrigin: 'anonymous'
                }),
                id: 'naver_terrain',
                visible: false
            });
            map.addLayer(naverTerrainLayer);
 
            // ------------------------------
            // daum(kakao) layers
            // ------------------------------
            var daumTileGrid = new ol.tilegrid.TileGrid({
                extent : [(-30000-524288), (-60000-524288), (494288+524288), (988576+524288)],
                tileSize : 256,
                resolutions : [4096, 2048, 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1, 0.5, 0.25], 
                minZoom : 1
            });
 
            function getDaumTileUrlFunction(type) {
 
                var tileUrlFunction = function(tileCoord, pixelRatio, projection) {
 
                    var res = this.getTileGrid().getResolutions();
                    var sVal = res[tileCoord[0]];
                    
                    var yLength = 988576 - (-60000) + 524288 + 524288;
                    var yTile = yLength / (sVal * this.getTileGrid().getTileSize());
 
                    var tileGap = Math.pow(2, (tileCoord[0] -1));
                    yTile = yTile - tileGap;
                    
                    var xTile = tileCoord[1] - tileGap;
            
                    if (type == 'base') {
                        return 'https://map' + Math.floor( (Math.random() * (4 - 1 + 1)) + 1 ) + '.daumcdn.net/map_2d_hd/2111ydg/L' + (15 - tileCoord[0]) + '/' + (yTile + tileCoord[2]) + '/' + xTile + '.png';
                    } else if (type == 'satellite') {
                        return 'https://map' + Math.floor( (Math.random() * (4 - 1 + 1)) + 1 ) + '.daumcdn.net/map_skyview_hd/L' + (15 - tileCoord[0]) + '/' + (yTile + tileCoord[2]) + '/' + xTile + '.jpg';
                    } else if (type == 'hybrid') {
                        return 'https://map' + Math.floor( (Math.random() * (4 - 1 + 1)) + 1 ) + '.daumcdn.net/map_hybrid_hd/2111ydg/L' + (15 - tileCoord[0]) + '/' + (yTile + tileCoord[2]) + '/' + xTile + '.png';
                    }
 
                };
 
                return tileUrlFunction;
 
            }
 
            // daum base
            var daumBaseLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:5181',
                    tileGrid: daumTileGrid,
                    tileUrlFunction: getDaumTileUrlFunction('base'),
                    tilePixelRatio: 2,              // 타일사이즈 512일때 해상도 비율
                }),
                id: 'daum_base',
                visible: false
            });
            map.addLayer(daumBaseLayer);
 
            // daum satellite
            var daumSatelliteLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:5181',
                    tileGrid: daumTileGrid,
                    tileUrlFunction: getDaumTileUrlFunction('satellite'),
                    tilePixelRatio: 2,              // 타일사이즈 512일때 해상도 비율
                }),
                id: 'daum_satellite',
                visible: false
            });
            map.addLayer(daumSatelliteLayer);
 
            // daum hybrid
            var daumHybridLayer = new ol.layer.Tile({
                source: new ol.source.XYZ({
                    projection : 'EPSG:5181',
                    tileGrid: daumTileGrid,
                    tileUrlFunction: getDaumTileUrlFunction('hybrid'),
                    tilePixelRatio: 2,              // 타일사이즈 512일때 해상도 비율
                }),
                id: 'daum_hybrid',
                visible: false
            });
            map.addLayer(daumHybridLayer);
            
 
        }
 
        function initBaseLayerSelect(map) {
 
            // add select option
            var html = '';
            $.each(map.getLayers().getArray(), function(i, v) {
                html += '<option value="' + v.get('id') + '">' + v.get('id') + '</option>';
            });
            $('#baseLayer').append(html);
 
            // select event
            $('#baseLayer').change(function() {
 
                var layerId = $(this).val();
                $.each(map.getLayers().getArray(), function(i, v) {
                    if (layerId == v.get('id')) {
                        v.setVisible(true);
                    } else {
                        v.setVisible(false);
                    }
                });
 
            });
 
            // 초기값
            $('#baseLayer').val('daum_base').trigger('change');
 
        }
 
          // 지오로케이션
        function initGeolocation(map) {
          
              // [내위치로 이동] 버튼 이벤트
            $('#myLocation').click(function() {
                var pos = geolocation.getPosition();
                if (pos == null) {
                    return;
                }
                map.getView().animate({
                    center: pos,
                    zoom: 18,
                    duration: 1000
                });
            });
 
            // 좌표계 변경 이벤트
            $('#coordinate').change(function() {
               $('#position').text('');
               geolocation.changed();
            });
 
            var geolocation = new ol.Geolocation({
                tracking: true,
                projection: map.getView().getProjection()
            });
 
            window.geolocation = geolocation;
 
            function el(id) {
                return document.getElementById(id);
            }
 
            // 좌표 변경 오픈레이어스 이벤트
            geolocation.on('change', function() {
 
                var pos = geolocation.getPosition();
              
                  if($('#isTrakingLocation').is(':checked') == true) {
                  if (pos != null) {
                    //map.getView().setCenter(pos);
                    map.getView().animate({
                      center: pos,
                      duration: 500
                    });
                  }
                }
              
                if (map.getView().getProjection().getCode() != $('#coordinate').val()) {
                    pos = ol.proj.transform(pos, map.getView().getProjection().getCode(), $('#coordinate').val())
                }
         
                el('position').innerText = pos;
                // el('accuracy').innerText = geolocation.getAccuracy() + '[m]';
                el('altitude').innerText = geolocation.getAltitude() == null ? 'loading' : geolocation.getAltitude() + '[m]';
                // el('altitudeAccuracy').innerText = geolocation.getAltitudeAccuracy() + '[m]';
                // el('heading').innerText = geolocation.getHeading() == null ? 'loading' : geolocation.getHeading() + '[rad]';
                  el('heading').innerText = geolocation.getHeading() == null ? 'loading' : (geolocation.getHeading() * 360 / (Math.PI * 2)) + '[°]';
              
                el('speed').innerText = geolocation.getSpeed() == null ? 'loading' : geolocation.getSpeed() + '[m/s]';
            });
 
            var accuracyFeature = new ol.Feature();
            geolocation.on('change:accuracyGeometry', function() {
                accuracyFeature.setGeometry(geolocation.getAccuracyGeometry());
            });
 
              // 포인트 객체
            var positionFeature = new ol.Feature();
            positionFeature.setStyle(new ol.style.Style({
                image: new ol.style.Circle({
                  radius: 6,
                  fill: new ol.style.Fill({
                      color: '#3399CC'
                  }),
                  stroke: new ol.style.Stroke({
                      color: '#fff',
                      width: 2
                  })
                })
            }));
 
            geolocation.on('change:position', function() {
                var coordinates = geolocation.getPosition();
                positionFeature.setGeometry(coordinates ? new ol.geom.Point(coordinates) : null);
            });
 
            new ol.layer.Vector({
                map: map,
                source: new ol.source.Vector({
                features: [accuracyFeature, positionFeature]
                })
            });
 
        }
    
    </script>
 
</head>
<body>
 
    <div id="map" class="map">
    <div id="location">
        <div>
            <span>좌표 : <code id="position"></code></span>
        </div>
        <div>
            <span>속도 : <code id="speed"></code></span>
        </div>
        <div>
            <span>방향 : <code id="heading"></code></span>
        </div>
        <div>
            <span>고도 : <code id="altitude"></code></span>
        </div>
        <div>
            <span>좌표계 : </span>
            <select id="coordinate">
                <option value="EPSG:4326" selected>EPSG:4326 | 경위도</option>
                <option value="EPSG:3857">EPSG:3857 | Google 좌표계</option>
                <option value="EPSG:5179">EPSG:5179 | UTM-K</option>
                <option value="EPSG:2097">EPSG:2097 | 중부원점(Bessel)</option>
                <option value="EPSG:5174">EPSG:5174 | 보정된 중부원점(Bessel)</option>
                <option value="EPSG:5181">EPSG:5181 | 중부원점(GRS80) [20만, 50만]</option>
                <option value="EPSG:5186">EPSG:5186 | 중부원점(GRS80) [20만,  60만]</option>
            </select>
        </div>
        <div>
            <span>배경지도 : </span><select id="baseLayer"></select>
        </div>
        <div>
            <button id="myLocation">내 위치로 이동</button>
            <label style="margin-left: 5px;"><input type="checkbox" id="isTrakingLocation"> 내 위치로 자동 이동</label>
        </div>
    </div>
 
</body>
</html>






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