NavigationHelpButtonViewModel - Cesium Documentation

# NavigationHelpButtonViewModel

#### new NavigationHelpButtonViewModel()

  The view model for `NavigationHelpButton`.
  Source: Widgets/NavigationHelpButton/NavigationHelpButtonViewModel.js, line 17

### Members

#### command :Command

  Gets the Command that is executed when the button is clicked.
  Source: Widgets/NavigationHelpButton/NavigationHelpButtonViewModel.js, line 55

#### showClick :Command

  Gets the Command that is executed when the mouse instructions should be shown.
  Source: Widgets/NavigationHelpButton/NavigationHelpButtonViewModel.js, line 67

#### showInstructions :Boolean

  Gets or sets whether the instructions are currently shown. This property is observable.
  Default Value: `false`
  Source: Widgets/NavigationHelpButton/NavigationHelpButtonViewModel.js, line 23

#### showTouch :Command

  Gets the Command that is executed when the touch instructions should be shown.
  Source: Widgets/NavigationHelpButton/NavigationHelpButtonViewModel.js, line 79

#### tooltip :String

  Gets or sets the tooltip. This property is observable.
  Source: Widgets/NavigationHelpButton/NavigationHelpButtonViewModel.js, line 43