我创建了一个开放地图,其中包含带有多个多边形的矢量层。如何检测用户单击这些多边形并检测单击了哪个正方形?
var map = new Map({
layers: [
new TileLayer({
source: new TileJSON({
url: 'https://maps.siemens.com/styles/osm-bright.json'
})
}),
new VectorLayer({
source: new VectorSource({
features: polygonFeatures
}),
style: new Style({
stroke: new Stroke({
width: 1,
color: [0, 0, 0, 1]
}),
fill: new Fill({
color: [255, 0, 255, 0.3]
})
})
})
],
target: 'map',
view: new View({
center: midPoint,
zoom: 6.1
})
});
这里是jsfiddle
答案 0 :(得分:1)
在单击时,您可以按名称或其他属性来标识特征,如本示例Angular Support
命名多边形的最简单方法是使用minPoint和maxPoint。从范围创建多边形也更简单
function mapSquare(minPoint, maxPoint) {
var extent = minPoint.concat(maxPoint);
var polygonFeature = new Feature({
geometry: Polygon.fromExtent(minPoint.concat(maxPoint)).transform('EPSG:4326','EPSG:3857'),
name: extent.toString()
});
return polygonFeature;
}