defalut-view

点击 view home按钮，视角跳转

2022-10-28 00:16:50

 Cesium.Camera.DEFAULT_VIEW_RECTANGLE = Cesium.Rectangle.fromDegrees(75.0,0.0,140.0, 60.0);//中国范围

// 或者

viewer.homeButton.viewModel.command.beforeExecute.addEventListener(function(commandInfo) {
    // Fly to custom position
    viewer.camera.flyToBoundingSphere(boundingSphere);

    // Tell the home button not to do anything
    commandInfo.cancel = true;
});