1.引入相关js包
<script src="<%=basePath%>static/js/jquery/jquery-2.2.4.min.js">
<script src="<%=basePath%>static/js/openlayers/ol.js"></script>
2.初始化对象
let map;
let vectorLayer;
$(function(){
initMap()
})
function initMap() {
const extent = [0, 0,3000,2000];
var projection =new ol.proj.Projection({
code:'xkcd-image',
units:'pixels',
extent: extent
});
vectorLayer =new ol.layer.Vector({
source:new ol.source.Vector()
});
map =new ol.Map({
layers: [
new ol.layer.Image({
source:new ol.source.ImageStatic({
url:'../../static/img/pigFarm/map.jpg',//这里添加静态图片的地址
projection: projection,
imageExtent: extent
})
}), vectorLayer
],
target:'map',
view:new ol.View({
projection: projection,
center:ol.extent.getCenter(extent),
minZoom:3,
zoom:3,
maxZoom:3
}),
//加载控件到地图容器中
controls:ol.control.defaults({
zoom:false,
rotate:false,
attribution:false
}).extend([
])
});
let iconStyle =getIconStyle('../../static/img/security/cameraIcon.png', map.getView().getZoom() /5);
setFeature('1', 1450, 950, iconStyle);
setFeature('1-pig', 1535, 980, getTextStyle("保育舍"));
setFeature('2', 1800, 820, iconStyle);
setFeature('2-room', 1875, 845, getTextStyle("产房"));
setFeature('3', 1950, 720, iconStyle);
setFeature('3-fat', 2035, 750, getTextStyle("妊娠舍"));
setFeature('7', 1900, 1050, iconStyle);
setFeature('7-sow', 1980, 1080, getTextStyle("育肥舍"));
setEventListener();
map.on('pointermove',function(e) {
var pixel=map.getEventPixel(e.originalEvent);
var feature=map.forEachFeatureAtPixel(pixel,function (feature) {
return feature;
})
if(feature==undefined){
map.getTargetElement().style.cursor="auto"
}else{
map.getTargetElement().style.cursor="pointer"
}
})
}
//添加图标
function setFeature(id, x, y, style) {
var feature =new ol.Feature({
geometry:new ol.geom.Point([x, y])
});
if (id !=null) {
feature.setId(id);
}
feature.setStyle(style);
vectorLayer.getSource().addFeature(feature);
}
function getIconStyle(src, scale) {
return new ol.style.Style({
image:new ol.style.Icon(({
anchor: [0.5, 1],
src: src,
scale: scale
})),
});
}
function getTextStyle(text2) {
return new ol.style.Style({
text:new ol.style.Text({
font:'18 sans-serif',
scale:2,
text: text2,
fill:new ol.style.Fill({
color:'#1976ff'
}),
stroke:new ol.style.Stroke({
color:'#fff',
width:3
})
})
});
}
function setEventListener() {
map.on('click', function (e1) {
e1.preventDefault();
let f1 =map.forEachFeatureAtPixel(e1.pixel,
function (feature) {
return feature;
});
if (f1 !=null) {
let fId = f1.getId();
const num = fId.split('');
showVideo(num[0])
}else {
}
});
}
