/// <summary>
/// Creates BlockReference from the block with the given name.
/// Throws ArgumentException if block with such a name does not exist.
/// </summary>
/// <param name="blockName"></param>
/// <param name="insertionPoint"></param>
/// <param name="space">The model space or some of the paper spaces</param>
/// <param name="blockTable">The block table of the associated drawing in the helper.</param>
/// <returns>The BlockReference of the block</returns>
private BlockReference CreateBlockReference(string blockName, UnitsValue sourceBlockMeasurementUnits, Point3d insertionPoint, BlockTableRecord space, BlockTable blockTable)
{
Matrix3d ucs = _ed.CurrentUserCoordinateSystem;
BlockReference newBlockReference;
//All open objects opened during a transaction are closed at the end of the transaction.
using (Transaction transaction = _db.TransactionManager.StartTransaction())
{
blockTable.UpgradeOpen();
// If the DWG already contains this block definition we will create a block reference and not a copy of the same definition
if (!blockTable.Has(blockName))
{
_logger.Error(MethodBase.GetCurrentMethod().DeclaringType.FullName + "." + MethodBase.GetCurrentMethod().Name + " : Block with name '" + blockName + "' does not exist.");
transaction.Abort();
throw new ArgumentException("Block with name '" + blockName + "' does not exist.");
}
BlockTableRecord sourceBlockTableRecord = (BlockTableRecord)transaction.GetObject(blockTable[blockName], OpenMode.ForRead);
newBlockReference = new BlockReference(insertionPoint, sourceBlockTableRecord.ObjectId);
var converter = new MeasurementUnitsConverter();
var scaleFactor = converter.GetScaleRatio(sourceBlockMeasurementUnits, blockTable.Database.Insunits);
_ed.CurrentUserCoordinateSystem = Matrix3d.Identity;
newBlockReference.TransformBy(ucs);
_ed.CurrentUserCoordinateSystem = ucs;
newBlockReference.ScaleFactors = new Scale3d(scaleFactor);
space.UpgradeOpen();
space.AppendEntity(newBlockReference);
transaction.AddNewlyCreatedDBObject(newBlockReference, true);
AttributeCollection atcoll = newBlockReference.AttributeCollection;
foreach (ObjectId subid in sourceBlockTableRecord)
{
var entity = (Entity)subid.GetObject(OpenMode.ForRead);
var attributeDefinition = entity as AttributeDefinition;
if (attributeDefinition != null)
{
var attributeReference = new AttributeReference();
attributeReference.SetPropertiesFrom(attributeDefinition);
attributeReference.Visible = attributeDefinition.Visible;
attributeReference.SetAttributeFromBlock(attributeDefinition, newBlockReference.BlockTransform);
attributeReference.HorizontalMode = attributeDefinition.HorizontalMode;
attributeReference.VerticalMode = attributeDefinition.VerticalMode;
attributeReference.Rotation = attributeDefinition.Rotation;
attributeReference.Position = attributeDefinition.Position + insertionPoint.GetAsVector();
attributeReference.Tag = attributeDefinition.Tag;
attributeReference.FieldLength = attributeDefinition.FieldLength;
attributeReference.TextString = attributeDefinition.TextString;
attributeReference.AdjustAlignment(_db);
atcoll.AppendAttribute(attributeReference);
transaction.AddNewlyCreatedDBObject(attributeReference, true);
}
}
transaction.Commit();
}
_ed.Regen();
return(newBlockReference);
}