The NavigationHelpButton is a single button widget for displaying instructions for navigating the globe with the mouse.
| 参数名称 | 类型 | 描述信息 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
object |
Object with the following properties:
|
Throws:
-
DeveloperError : Element with id "container" does not exist in the document.
使用示例:
// In HTML head, include a link to the NavigationHelpButton.css stylesheet,
// and in the body, include: <div id="navigationHelpButtonContainer"></div>
const navigationHelpButton = new Cesium.NavigationHelpButton({
container : 'navigationHelpButtonContainer'
});成员(属性)
Gets the parent container.
viewModel : NavigationHelpButtonViewModel
Gets the view model.
方法
Destroys the widget. Should be called if permanently
removing the widget from layout.
返回值:
true if the object has been destroyed, false otherwise.