/// <summary>
/// Create feature layer of a selected type (if it doesn't already exist)
/// TODO: test this funciton
/// </summary>
/// <param name="layerType"></param>
/// <returns></returns>
private static FeatureLayer makeLayer(FeatureLayerType layerType)
{
try
{
var name = layerType.ToString("g");
var symRef = createSymbol(layerType);
var rd = new SimpleRendererDefinition(symRef, label: name, description: name);
// TODO: create new dataconnection for Rhino with attributes as needed
var dc = MapView.Active.Map.Layers.FirstOrDefault().GetDataConnection();
return(LayerFactory.Instance.CreateFeatureLayer(dc, MapView.Active.Map, layerName: layerType.ToString("g"), rendererDefinition: rd));
}
catch
{
return(null);
}
}
/// <summary>
/// Get the relevant GH Feature layer based on the type (Point, Line, Polygon)
/// </summary>
/// <param name="type">Feature layer type (point, line, polygon)</param>
/// <returns>Feature Layer</returns>
private static BasicFeatureLayer getFeatureLayer(FeatureLayerType type)
{
var ghPreviewLayer = MapView.Active.Map.FindLayers(type.ToString("g")).FirstOrDefault();
if (ghPreviewLayer != null)
{
return(ghPreviewLayer as BasicFeatureLayer);
}
else
{
// TODO: uncomment once fully tested
// ghPreviewLayer = makeLayer(type);
if (ghPreviewLayer != null)
{
return(ghPreviewLayer as BasicFeatureLayer);
}
else
{
return(null);
}
}
}