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# openlayer 绘制线

openlayer 绘制线


上一小节说了一下openlayer绘制坐标标记点,这一次说一下绘制线,其实也很简单。


// 初始化地图
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, // 设置缩放级别为整数
smoothResolutionConstraint: false, // 关闭无级缩放地图
}),
});

this.addPoint()
this.addLine()
},

// 绘制坐标点
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)
},

// 绘制连线
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)
}

偶买噶!太简单了吧这也!

# openlayer 绘制线_git

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