/// <summary>
/// A filter that should return a value to indicate which layers have been already been added
/// </summary>
/// <param name="layer"></param>
/// <returns></returns>
bool MapLayerDefinitionFilter(MapLayerDefinition layer)
{
Universe allowedUniverse = null;
if (CurrentMap != null)
{
var world = CurrentMap.World;
var uni = world != null ? world.Universe : null;
bool csIsLocal = uni != null ? uni.HasLocalCoordinateSystems : false;
if (CurrentMap.World != null && CurrentMap.World.Universe != null && CurrentMap.World.Universe.IsMultiWorld)
{
allowedUniverse = CurrentMap.World.Universe;
}
var layerUniverse = layer != null ? layer.Universe : null;
var layerUniverseIsLocal = layerUniverse != null && layerUniverse.HasLocalCoordinateSystems;
if (allowedUniverse != null && (layerUniverse == null || layerUniverse != allowedUniverse))
{
// There is a specific universe involved
return(false);
}
if (csIsLocal != layerUniverseIsLocal)
{
// Local/Geographic mismatch
return(false);
}
foreach (var layerViewModel in CurrentMap.Layers)
{
if (layerViewModel.LayerDefinition != null && layerViewModel.LayerDefinition.ServiceProviderGroup.Equals(layer.ServiceProviderGroup) && layerViewModel.LayerDefinition.Name.Equals(layer.Name))
{
return(false);
}
}
}
return(true);
}
/// <summary>
/// Creates the mapLayerDefinition
/// </summary>
/// <returns></returns>
public async Task <MapLayerDefinition> ToLayerDefinition()
{
MapLayerDefinition result = null;
var providers = ServiceProviderManager.Instance.ServiceProviders;
var provider = providers.FirstOrDefault(p => p.Name == ProviderName);
if (provider != null)
{
var mapService = provider.GetService <IMapService>();
var providerGroup = LayerReference.ServiceProviderGroup.ToServiceProviderGroup(provider);
if (providerGroup != null)
{
var mapLayerRequest = new GetMapLayerDefinitionsRequest()
{
GroupNames = new string[] { providerGroup.GroupName },
GroupTypes = new ServiceProviderGroupType[] { providerGroup.GroupType }
};
var mapLayers = await mapService.GetMapLayerDefinitionsAsync(mapLayerRequest);
if (mapLayers != null)
{
result = mapLayers.MapLayerDefinitions.FirstOrDefault(l => l.Name == LayerReference.Name);
if (result != null)
{
result.DefaultVisible = IsOn;
}
}
}
}
return(result);
}
/// <summary>
/// Constructor for MapLayerViewModel
/// </summary>
/// <param name="layer"></param>
public LiteUserMapLayerStorageModel(MapLayerDefinition layer, bool isOn)
{
ProviderName = layer.ServiceProvider.Name;
LayerReference = new XYServiceProviderDatumReferenceDto(layer.ServiceProviderGroup, layer.Name);
IsOn = isOn;
}
