/// <summary>
/// Writes full model into output writer as STEP21 file
/// </summary>
/// <param name="model">Model to be serialized</param>
/// <param name="output">Output writer</param>
/// <param name="metadata">Metadata to be used for serialization</param>
/// <param name="map">Optional map can be used to map occurrences in the file</param>
private void Write(TextWriter output)
{
ExpressMetaData metadata = Metadata;
var header = Header ?? new StepFileHeader(StepFileHeader.HeaderCreationMode.InitWithXbimDefaults, this);
string fallBackSchema = EntityFactory.SchemasIds.FirstOrDefault();
if (!header.FileSchema.Schemas.Any())
{
foreach (var id in EntityFactory.SchemasIds)
{
header.FileSchema.Schemas.Add(id);
}
}
Part21Writer.WriteHeader(header, output, fallBackSchema);
foreach (var entity in Instances)
{
if (_comments.TryGetValue(entity.EntityLabel, out string comment))
{
comment = comment.Trim('\r', '\n');
comment = comment.Replace("\r\n", "\r\n* ");
output.WriteLine();
output.WriteLine($"/**");
output.WriteLine("* " + comment);
output.WriteLine($"* {GetMetaComment(entity)}*/");
}
Part21Writer.WriteEntity(entity, output, metadata, null);
output.WriteLine();
}
Part21Writer.WriteFooter(output);
}
private string GetEntityString()
{
Part21Writer.WriteEntity(_entity, _writer, _entity.Model.Metadata, _dummy);
var value = _writer.ToString();
ClearWriter();
return(value);
}
/// <summary>
/// Saves a model as a STEP IFC file
/// </summary>
/// <param name="model"></param>
/// <param name="stream"></param>
/// <param name="progDelegate"></param>
public static void SaveAsIfc(this IModel model, Stream stream, ReportProgressDelegate progDelegate = null)
{
using (TextWriter tw = new StreamWriter(stream))
{
Part21Writer.Write(model, tw, model.Metadata, null, progDelegate);
tw.Flush();
}
}
private string GetPropertyString(int order)
{
var info = _changedProperties[order];
Part21Writer.WriteProperty(info.PropertyType, info.GetValue(_entity, null), _writer, _dummy, _entity.Model.Metadata);
var value = _writer.ToString();
ClearWriter();
return(value);
}
public static void Save(TextWriter writer, IModel model)
{
Part21Writer.WriteHeader(model.Header, writer, "IFC4");
var metadata = model.Metadata;
foreach (var instance in model.Instances)
{
WriteEntity(instance, writer, metadata);
}
Part21Writer.WriteFooter(writer);
}
public override string ToString()
{
ExpressMetaData md = null;
if (Model != null)
{
md = Model.Metadata;
}
else
{
md = ExpressMetaData.GetMetadata(GetType().Module);
}
using (var sw = new StringWriter())
{
Part21Writer.WriteEntity(this, sw, md);
return(sw.ToString());
}
}
private static void WriteEntity(IPersistEntity entity, TextWriter output, ExpressMetaData metadata)
{
var expressType = metadata.ExpressType(entity);
output.Write("#{0}={1}(", entity.EntityLabel, expressType.ExpressNameUpper);
var first = true;
foreach (var ifcProperty in expressType.Properties.Values)
//only write out persistent attributes, ignore inverses
{
if (ifcProperty.EntityAttribute.State == EntityAttributeState.DerivedOverride)
{
if (!first)
{
output.Write(',');
}
output.Write('*');
first = false;
}
else
{
// workaround for IfcCartesianPointList3D from IFC4x1
if (entity is IfcCartesianPointList3D && ifcProperty.Name == "TagList")
{
continue;
}
var propType = ifcProperty.PropertyInfo.PropertyType;
var propVal = ifcProperty.PropertyInfo.GetValue(entity, null);
if (!first)
{
output.Write(',');
}
Part21Writer.WriteProperty(propType, propVal, output, null, metadata);
first = false;
}
}
output.Write(");");
}
private static void WriteEntityRecursive(IPersistEntity entity, ExpressMetaData metadata, TextWriter writer, HashSet <int> written)
{
if (written.Contains(entity.EntityLabel))
{
return;
}
Part21Writer.WriteEntity(entity, writer, metadata);
written.Add(entity.EntityLabel);
var references = entity as IContainsEntityReferences;
if (references == null)
{
return;
}
foreach (var item in references.References)
{
WriteEntityRecursive(item, metadata, writer, written);
}
}
/// <summary>
/// Saves the model as PART21 file
/// </summary>
/// <param name="writer">Text writer to be used to write the file</param>
/// <param name="progress"></param>
public virtual void SaveAsStep21(TextWriter writer, ReportProgressDelegate progress = null)
{
Part21Writer.Write(this, writer, Metadata, new Dictionary <int, int>());
}
public void TransactionLog()
{
using (var model = IfcStore.Create(IfcSchemaVersion.Ifc2X3, XbimStoreType.InMemoryModel))
{
var changed = new List <string>();
var valuesLog = new StringWriter();
var initialLog = new StringWriter();
model.EntityModified += (entity, property) =>
{
//use reflection to get property information for the changed property
var pInfo = entity.ExpressType.Properties[property];
changed.Add(pInfo.Name);
//express indices are 1 based
var propertyIndex = property - 1;
//overriden attributes have to be treated specially. But these are not present in CobieExpress.
if (pInfo.EntityAttribute.State == EntityAttributeState.DerivedOverride)
{
initialLog.Write("*");
}
else
{
//you can use reflection to get the current (new) value
var value = pInfo.PropertyInfo.GetValue(entity, null);
//this is part of the serialization engine but you can use it for a single property as well
Part21Writer.WriteProperty(pInfo.PropertyInfo.PropertyType, value, valuesLog, null, model.Metadata);
}
valuesLog.WriteLine();
};
model.EntityNew += entity =>
{
//iterate over all properties. These are sorted in the right order already.
foreach (var property in entity.ExpressType.Properties.Values)
{
//overriden attributes have to be treated specially. But these are not present in CobieExpress.
if (property.EntityAttribute.State == EntityAttributeState.DerivedOverride)
{
initialLog.Write("*");
}
else
{
var value = property.PropertyInfo.GetValue(entity, null);
Part21Writer.WriteProperty(property.PropertyInfo.PropertyType, value, initialLog, null, model.Metadata);
}
initialLog.WriteLine();
}
};
using (var txn = model.BeginTransaction())
{
var wall = model.Instances.New <IfcWall>();
wall.Name = "New name";
wall.Description = null;
var pset = model.Instances.New <IfcPropertySet>();
pset.HasProperties.Add(model.Instances.New <IfcPropertySingleValue>());
Assert.IsTrue(changed.SequenceEqual(new [] { "Name", "Description", "HasProperties" }));
Assert.AreEqual(valuesLog.ToString(), "'New name'\r\n$\r\n(#3)\r\n");
txn.Commit();
}
}
}
