# openlayer 繪製線
阿新 • • 發佈:2022-03-25
openlayer 繪製線
上一小節說了一下openlayer繪製座標標記點,這一次說一下繪製線,其實也很簡單。
// 初始化地圖 initMap() { map = new Map({ layers: [ new TileLayer({ source: new OSM(), }), ], target: 'map', view: new View({ center: [116.403218, 39.92372], zoom: 12, maxZoom: 18, projection: 'EPSG:4326', constrainResolution: true, // 設定縮放級別為整數 smoothResolutionConstraint: false, // 關閉無級縮放地圖 }), }); this.addPoint() this.addLine() }, // 繪製座標點 addPoint() { let feature = new Feature({ title: 'beijing', geometry: new Point([116.403218, 39.92372]), }) feature.setStyle( new Style({ image: new CircleStyle({ fill: new Fill({ color: 'blue', }), radius: 4, }), }) ); let source = new VectorSource() source.addFeature(feature) let layer = new VectorLayer() layer.setSource(source) map.addLayer(layer) }, // 繪製連線 addLine() { let featureLine = new Feature({ geometry: new LineString([ [116.403218, 39.92372], [116.503218, 39.62372], ]), }); let source = new VectorSource() source.addFeature(featureLine) let layer = new VectorLayer() layer.setSource(source) map.addLayer(layer) }
偶買噶!太簡單了吧這也!