/// <summary>
/// Checks the AutoCAD dxf file database version.
/// </summary>
/// <param name="stream">Stream</param>
/// <param name="isBinary">Returns true if the dxf is a binary file.</param>
/// <returns>String that represents the dxf file version.</returns>
/// <remarks>The caller will be responsible of closing the stream.</remarks>
public static DxfVersion CheckDxfFileVersion(Stream stream, out bool isBinary)
{
string value = DxfReader.CheckHeaderVariable(stream, HeaderVariableCode.AcadVer, out isBinary);
return((DxfVersion)StringEnum.Parse(typeof(DxfVersion), value));
}
/// <summary>
/// Saves the database of the actual DxfDocument to a dxf ASCII file.
/// </summary>
/// <param name="file">File name.</param>
/// <param name="dxfVersion">Dxf file <see cref="DxfVersion">version</see>.</param>
public void Save(string file, DxfVersion dxfVersion)
{
ReAsignHandlersAndDefaultObjects();
this.fileName = Path.GetFileNameWithoutExtension(file);
this.version = dxfVersion;
List <Polyline> ellipsePolys = null;
List <IPolyline> lwPolys;
Dictionary <string, List <IEntityObject> > blockEntities;
if (this.version == DxfVersion.AutoCad12)
{
// since AutoCad dxf Version 12 doesn't support ellipses, we will transform them in polylines
ellipsePolys = new List <Polyline>();
foreach (Ellipse ellipse in this.ellipses)
{
Polyline poly = ellipse.ToPolyline(ellipse.CurvePoints);
this.handleCount = poly.AsignHandle(this.handleCount);
ellipsePolys.Add(poly);
}
// since AutoCad dxf Version 12 doesn't support lwpolylines, we will transform them in polylines
lwPolys = new List <IPolyline>();
foreach (IPolyline lwPoly in this.polylines)
{
if (lwPoly is LightWeightPolyline)
{
Polyline poly = ((LightWeightPolyline)lwPoly).ToPolyline();
this.handleCount = poly.AsignHandle(this.handleCount);
lwPolys.Add(poly);
}
else
{
lwPolys.Add(lwPoly);
}
}
// since AutoCad dxf Version 12 doesn't support lwpolylines in blocks, we will transform them in polylines
blockEntities = new Dictionary <string, List <IEntityObject> >();
foreach (Block block in this.blocks.Values)
{
blockEntities.Add(block.Name, new List <IEntityObject>());
foreach (IEntityObject entity in block.Entities)
{
if (entity is LightWeightPolyline)
{
Polyline poly = ((LightWeightPolyline)entity).ToPolyline();
this.handleCount = poly.AsignHandle(this.handleCount);
blockEntities[block.Name].Add(poly);
}
else
{
blockEntities[block.Name].Add(entity);
}
}
}
}
else
{
// since AutoCad dxf Version 12 doesn't support lwpolylines, we will transform them in polylines
lwPolys = new List <IPolyline>();
foreach (IPolyline lwPoly in this.polylines)
{
if ((lwPoly is Polyline))
{
LightWeightPolyline poly = ((Polyline)lwPoly).ToLightWeightPolyline();
this.handleCount = poly.AsignHandle(this.handleCount);
lwPolys.Add(poly);
}
else
{
lwPolys.Add(lwPoly);
}
}
// since latter AutoCad dxf Version doesn't support polylines in blocks, we will transform them in lightweightpolylines
blockEntities = new Dictionary <string, List <IEntityObject> >();
foreach (Block block in this.blocks.Values)
{
blockEntities.Add(block.Name, new List <IEntityObject>());
foreach (IEntityObject entity in block.Entities)
{
if (entity is Polyline)
{
LightWeightPolyline poly = ((Polyline)entity).ToLightWeightPolyline();
this.handleCount = poly.AsignHandle(this.handleCount);
blockEntities[block.Name].Add(poly);
}
else
{
blockEntities[block.Name].Add(entity);
}
}
}
}
CultureInfo cultureInfo = CultureInfo.CurrentCulture;
Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
DxfWriter dxfWriter = new DxfWriter(file, dxfVersion);
dxfWriter.Open();
dxfWriter.WriteComment("Dxf file generated by netDxf, Copyright(C) 2009 Daniel Carvajal, Licensed under LGPL");
//HEADER SECTION
dxfWriter.BeginSection(StringCode.HeaderSection);
dxfWriter.WriteSystemVariable(new HeaderVariable(SystemVariable.DabaseVersion, StringEnum.GetStringValue(this.version)));
dxfWriter.WriteSystemVariable(new HeaderVariable(SystemVariable.HandSeed, Convert.ToString(this.handleCount, 16)));
dxfWriter.EndSection();
////CLASSES SECTION
//dxfWriter.BeginSection(StringCode.ClassesSection);
//dxfWriter.EndSection();
//TABLES SECTION
dxfWriter.BeginSection(StringCode.TablesSection);
//viewport tables
if (this.version != DxfVersion.AutoCad12)
{
dxfWriter.BeginTable(StringCode.ViewPortTable);
foreach (ViewPort vport in this.viewports.Values)
{
dxfWriter.WriteViewPort(vport);
}
dxfWriter.EndTable();
}
//line type tables
dxfWriter.BeginTable(StringCode.LineTypeTable);
foreach (LineType lineType in this.lineTypes.Values)
{
dxfWriter.WriteLineType(lineType);
}
dxfWriter.EndTable();
//layer tables
dxfWriter.BeginTable(StringCode.LayerTable);
foreach (Layer layer in this.layers.Values)
{
dxfWriter.WriteLayer(layer);
}
dxfWriter.EndTable();
//text style tables
dxfWriter.BeginTable(StringCode.TextStyleTable);
foreach (TextStyle style in this.textStyles.Values)
{
dxfWriter.WriteTextStyle(style);
}
dxfWriter.EndTable();
//view
dxfWriter.BeginTable(StringCode.ViewTable);
dxfWriter.EndTable();
//ucs
dxfWriter.BeginTable(StringCode.UcsTable);
dxfWriter.EndTable();
//registered application tables
dxfWriter.BeginTable(StringCode.ApplicationIDTable);
foreach (ApplicationRegistry id in this.appRegisterNames.Values)
{
dxfWriter.RegisterApplication(id);
}
dxfWriter.EndTable();
//dimension style tables
if (this.version != DxfVersion.AutoCad12)
{
dxfWriter.BeginTable(StringCode.DimensionStyleTable);
foreach (DimensionStyle style in this.dimStyles.Values)
{
dxfWriter.WriteDimensionStyle(style);
}
dxfWriter.EndTable();
}
//block record tables, this table isnot recognized by AutoCad12
if (this.version != DxfVersion.AutoCad12)
{
dxfWriter.BeginTable(StringCode.BlockRecordTable);
foreach (Block block in this.blocks.Values)
{
dxfWriter.WriteBlockRecord(block.Record);
}
dxfWriter.EndTable();
}
dxfWriter.EndSection(); //End section tables
dxfWriter.BeginSection(StringCode.BlocksSection);
foreach (Block block in this.blocks.Values)
{
dxfWriter.WriteBlock(block, blockEntities[block.Name]);
}
dxfWriter.EndSection(); //End section blocks
//ENTITIES SECTION
dxfWriter.BeginSection(StringCode.EntitiesSection);
#region writting entities
foreach (Arc arc in this.arcs)
{
dxfWriter.WriteEntity(arc);
}
foreach (Circle circle in this.circles)
{
dxfWriter.WriteEntity(circle);
}
// only for version 12 draw polylines instead of ellipses
if (this.version == DxfVersion.AutoCad12)
{
if (ellipsePolys != null)
{
foreach (Polyline ellipse in ellipsePolys)
{
dxfWriter.WriteEntity(ellipse);
}
}
}
else
{
foreach (Ellipse ellipse in this.ellipses)
{
dxfWriter.WriteEntity(ellipse);
}
}
foreach (NurbsCurve nurbsCurve in this.nurbsCurves)
{
dxfWriter.WriteEntity(nurbsCurve);
}
foreach (Point point in this.points)
{
dxfWriter.WriteEntity(point);
}
foreach (Face3d face in this.faces3d)
{
dxfWriter.WriteEntity(face);
}
foreach (Solid solid in this.solids)
{
dxfWriter.WriteEntity(solid);
}
foreach (Insert insert in this.inserts)
{
dxfWriter.WriteEntity(insert);
}
foreach (Line line in this.lines)
{
dxfWriter.WriteEntity(line);
}
// lwpolyline in Acad12 are written as polylines
foreach (IPolyline pol in lwPolys)
{
dxfWriter.WriteEntity(pol);
}
//foreach (IPolyline polyline in this.polylines)
//{
// // avoid write lwpolylines in Acad12
// if (this.version != DxfVersion.AutoCad12 || !(polyline is LightWeightPolyline))
// {
// dxfWriter.WriteEntity(polyline);
// }
//}
foreach (Text text in this.texts)
{
dxfWriter.WriteEntity(text);
}
#endregion
dxfWriter.EndSection(); //End section entities
//OBJECTS SECTION
dxfWriter.BeginSection(StringCode.ObjectsSection);
dxfWriter.WriteDictionary(Dictionary.Default);
dxfWriter.EndSection();
dxfWriter.Close();
Thread.CurrentThread.CurrentCulture = cultureInfo;
}
