/// <summary>
/// Initialize RealDWG Environent for testing purpose.
/// If the test code is executed in AutoCAD application, we don't need to initialize the customized ApplicationService,
/// Otherwise, we create one.
/// </summary>
public static void InitializeRealDwgTestEnvironent()
{
if (Process.GetCurrentProcess().ProcessName != "acad")
{
Runtime.Initialize();
_sDatabase = DatabaseUtilities.CreateDwg();
}
}
/// <summary>
/// Determine if the unit of a DWG file is metric
/// </summary>
/// <param name="filePath">Full name of the DWG file to load.</param>
public static bool IsMetricDwg(string filePath)
{
Database database = DatabaseUtilities.LoadDwg(filePath, readOnly: true, loadXrefs: false);
UnitType unitType = DbUnitUtils.GetUnitType(database);
DatabaseUtilities.CloseDwg(database);
return(unitType == UnitType.Metric);
}
/// <summary>
/// Get Layer names from DWG
/// </summary>
/// <param name="filePath">Full name of the DWG file to load.</param>
public static IEnumerable <string> GetDwgLayers(string filePath)
{
var database = DatabaseUtilities.LoadDwg(filePath, readOnly: true, loadXrefs: true);
using (var transaction = database.TransactionManager.StartTransaction())
{
// Start by populating the list of names/IDs of Layer
var layerTable = (LayerTable)transaction.GetObject(database.LayerTableId, OpenMode.ForRead);
foreach (var entId in layerTable)
{
var dbObject = transaction.GetObject(entId, OpenMode.ForRead);
var layerTableRecord = dbObject as LayerTableRecord;
if (layerTableRecord != null && layerTableRecord.IsErased == false)
{
yield return(layerTableRecord.Name);
}
}
transaction.Commit();
}
DatabaseUtilities.CloseDwg(database);
}