var monitorEntity = viewer.entities.add({
name: "video",
position: Cesium.Cartesian3.fromDegrees(109.44, 32.11,30.0),
point: { //點
pixelSize: 0,
HeightReference: 1000
},
label: { //文字標籤
text: "文字標籤",
font: '500 30px Helvetica',// 15pt monospace
scale: 0.5,
style: Cesium.LabelStyle.FILL,
fillColor: Cesium.Color.WHITE,
pixelOffset: new Cesium.Cartesian2(-8, -35), //偏移量
showBackground: true,
backgroundColor: new Cesium.Color(0.5, 0.6, 1, 1.0)
},
billboard: { //圖標
image: '../images/marker01.png',
width: 50,
height: 50
},
});
// 視角定位
viewer.flyTo(monitorEntity, {
duration: 2,
offset: {
heading: Cesium.Math.toRadians(0.0),
pitch: Cesium.Math.toRadians(-30),
range: 720
}
});
//點擊廣告牌改變文本和圖標
var handlerVideo = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
handlerVideo.setInputAction(function (click) {
var pick = viewer.scene.pick(click.position);
if (pick && pick.id._name == "video") {
monitorEntity._billboard._image._value = '../images/marker02.png';
monitorEntity._label._text._value = "label";
} else {
return;
}
}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
Cesium.js 添加billboard廣告牌,點擊改變其文本和圖標
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