Cesium API - viewerPerformanceWatchdogMixin 中文文档

本文介绍下Cesium中 viewerPerformanceWatchdogMixin API的详细使用说明。

viewerPerformanceWatchdogMixin API 调用方法

viewerPerformanceWatchdogMixin(viewer, options)

Widgets/Viewer/viewerPerformanceWatchdogMixin.js 27

A mixin which adds the PerformanceWatchdog widget to the Viewer widget. Rather than being called directly, this function is normally passed as a parameter to Viewer#extend, as shown in the example below.

Name Type Description

viewer Viewer The viewer instance.

options

Object

optional An object with properties.

Name	Type	Default	Description
`lowFrameRateMessage`	String	`'This application appears to be performing poorly on your system. Please try using a different web browser or updating your video drivers.'`	optional The message to display when a low frame rate is detected. The message is interpeted as HTML, so make sure it comes from a trusted source so that your application is not vulnerable to cross-site scripting attacks.

异常情况：

DeveloperError : viewer is required.

示例：

var viewer = new Cesium.Viewer('cesiumContainer');
viewer.extend(Cesium.viewerPerformanceWatchdogMixin, {
    lowFrameRateMessage : 'Why is this going so slowly?'
});