createDraw.js
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export default class createDraw {
constructor(viewer) {
this.viewer = viewer;
this.handlerDis = new Cesium.MeasureHandler(viewer, Cesium.MeasureMode.Distance, 1);
this.distance();
this.handlerArea = new Cesium.MeasureHandler(viewer, Cesium.MeasureMode.Area, 0);
this.area();
this.handlerHeight = new Cesium.MeasureHandler(viewer, Cesium.MeasureMode.DVH);
this.height();
}
distance() {
this.handlerDis.measureEvt.addEventListener(result => {
var dis = Number(result.distance), distance = dis > 1000 ? (dis / 1000).toFixed(2) + 'km' : dis.toFixed(2) + 'm';
this.handlerDis.disLabel.text = '距离:' + distance;
});
this.handlerDis.activeEvt.addEventListener(this.handle());
}
area() {
this.handlerArea.measureEvt.addEventListener(result => {
var mj = Number(result.area), area = mj > 1000000 ? (mj / 1000000).toFixed(2) + 'km²' : mj.toFixed(2) + '㎡'
this.handlerArea.areaLabel.text = '面积:' + area;
});
this.handlerArea.activeEvt.addEventListener(this.handle());
}
height() {
this.handlerHeight.measureEvt.addEventListener(result => {
var distance = result.distance > 1000 ? (result.distance / 1000).toFixed(2) + 'km' : result.distance + 'm',
vHeight = result.verticalHeight > 1000 ? (result.verticalHeight / 1000).toFixed(2) + 'km' : result.verticalHeight + 'm',
hDistance = result.horizontalDistance > 1000 ? (result.horizontalDistance / 1000).toFixed(2) + 'km' : result.horizontalDistance + 'm';
this.handlerHeight.disLabel.text = '空间距离:' + distance;
this.handlerHeight.vLabel.text = '垂直高度:' + vHeight;
this.handlerHeight.hLabel.text = '水平距离:' + hDistance;
});
this.handlerArea.activeEvt.addEventListener(this.handle());
}
handle() {
return a => {
let body = $('body').removeClass('measureCur');
a && body.addClass('measureCur');
(this.viewer.enableCursorStyle = !a) || (this.viewer._element.style.cursor = '');
}
}
}