1
我一直在嘗試新版本(3)的Open Layers。我稍微修改了圖標特徵示例,因此它會顯示一個多邊形。我一直在尋找,閱讀並嘗試了幾個小時,但無法弄清楚我做錯了什麼。功能沒有顯示在地圖上
我不想使用geoJSON,因爲我想動態添加和刪除功能。
這是我到目前爲止的代碼:
<script type="text/javascript">
var point1 = ol.proj.transform([37.41, 8.82], 'EPSG:4326', 'EPSG:3857');
var point2 = ol.proj.transform([35.41, 9.82], 'EPSG:4326', 'EPSG:3857');
var point3 = ol.proj.transform([33.41, 11.82], 'EPSG:4326', 'EPSG:3857');
var polyFeat = new ol.Feature({
geometry: new ol.geom.Polygon([point1, point2, point3])
});
var polyStyle = new ol.style.Style({
fill: new ol.style.Fill({
color: 'blue'
}),
stroke: new ol.style.Stroke({
color: 'red',
width: 2
})
});
polyFeat.setStyle(polyStyle);
var vectorSource = new ol.source.Vector({
features: [polyFeat]
});
var vectorLayer = new ol.layer.Vector({
source: vectorSource
});
var rasterLayer = new ol.layer.Tile({
source: new ol.source.TileJSON({
url: 'http://api.tiles.mapbox.com/v3/mapbox.geography-class.jsonp'
})
});
var map = new ol.Map({
layers: [rasterLayer, vectorLayer],
target: document.getElementById('map'),
view: new ol.View({
center: ol.proj.transform([37.41, 8.82], 'EPSG:4326', 'EPSG:3857'),
zoom: 3
})
});
</script>
爲什麼多邊形沒有顯示?爲您解決問題