Class: LayerVisibilityState

Constructor

new LayerVisibilityState()

Examples

Save & restore visibility state from a map object

var state = new Cadcorp.UI.LayerVisibilityState();
//save state
state.saveMap(Cadcorp.theMap);
//restore state
state.restoreMap(Cadcorp.theMap);
//saveMap will save a reference to the map, so can be called without specifying the parameter if you wish to restore the layerstate on the same Map object.
state.restoreMap();

Save & restore visibility state for an array of layers

var state = new Cadcorp.UI.LayerVisibilityState();
var layers = Cadcorp.theMap.layers;
// save state
state.saveLayers(layers);
//restore state directly on the layers passed to the restoreLayers method
state.restoreLayers(layers);

Optionally pass the map in via constructor

var state = new Cadcorp.UI.LayerVisibilityState({map: Cadcorp.theMap});
state.saveMap();
state.restoreMap();

Changing the default configuration: visibility, ignoring base layers & ignoring Cadcorp System layers

var state = new Cadcorp.UI.LayerVisibilityState({defaultVisibility: true, restoreBaseLayers: false, restoreCadcorpSystemLayers: false});
state.saveMap(Cadcorp.theMap);

Mix and match layers and map objects

var state = new Cadcorp.UI.LayerVisibilityState({map: Cadcorp.theMap});
state.saveMap();
// Only restore GeognoSIS layers
var layers = Cadcorp.theMap.getLayersByClass('Cadcorp.OpenLayers.Layer.GeognoSISRest');
state.restoreLayers(layers);