new module:Group(options)
A Group data source combines multiple ngeo.datasource.DataSource objects.
Its main purpose is to provide a calculated visibilityState property
that can be used to determine if all its data source are all visible, all
hidden or some are hidden and other visible.
Parameters:
| Name | Type | Description |
|---|---|---|
options |
ngeox.datasource.GroupOptions | Options. |
Members
dataSources
dataSourcesCollection
(protected, non-null) dataSourcesCollection_: ol.Collection:.<!ngeo.datasource.DataSource:>
title
visibilityState
Methods
addDataSource(dataSource)
Parameters:
| Name | Type | Description |
|---|---|---|
dataSource |
!ngeo.datasource.DataSource | Data source to add. |
destroy()
getDataSourceState(dataSource)
Parameters:
| Name | Type | Description |
|---|---|---|
dataSource |
!ngeo.datasource.DataSource | Data source. |
Returns:
string
Visible state of a data source
removeDataSource(dataSource)
Parameters:
| Name | Type | Description |
|---|---|---|
dataSource |
!ngeo.datasource.DataSource | Data source to remove. |
toggleVisibilityState()
Update visible property of all data sources depending on the current visibility state:
- state ON --> visible false
- state OFF --> visible true
- state IND. --> visible true