private Insert ReadInsert(ref CodeValuePair code)
{
string handle = string.Empty;
Vector3f basePoint = Vector3f.Zero;
Vector3f normal = Vector3f.UnitZ;
Vector3f scale = new Vector3f(1, 1, 1);
float rotation = 0.0f;
Block block = null;
Layer layer = Layer.Default;
AciColor color = AciColor.ByLayer;
LineType lineType = LineType.ByLayer;
List<Attribute> attributes = new List<Attribute>();
Dictionary<ApplicationRegistry, XData> xData = new Dictionary<ApplicationRegistry, XData>();
code = this.ReadCodePair();
while (code.Code != 0)
{
switch (code.Code)
{
case 5:
handle = code.Value;
code = this.ReadCodePair();
break;
case 2:
block = this.GetBlock(code.Value);
if (block == null)
throw new DxfEntityException(DxfObjectCode.Insert, this.file, "Block " + code.Value + " not defined line " + this.fileLine);
code = this.ReadCodePair();
break;
case 8: //layer code
layer = this.GetLayer(code.Value);
code = this.ReadCodePair();
break;
case 62: //aci color code
color = new AciColor(short.Parse(code.Value));
code = this.ReadCodePair();
break;
case 6: //type line code
lineType = this.GetLineType(code.Value);
code = this.ReadCodePair();
break;
case 10:
basePoint.X = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 20:
basePoint.Y = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 30:
basePoint.Z = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 41:
scale.X = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 42:
scale.X = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 43:
scale.X = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 50:
rotation = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 210:
normal.X = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 220:
normal.Y = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 230:
normal.Z = float.Parse(code.Value);
code = this.ReadCodePair();
break;
case 1001:
XData xDataItem = this.ReadXDataRecord(code.Value, ref code);
xData.Add(xDataItem.ApplicationRegistry, xDataItem);
break;
default:
if (code.Code >= 1000 && code.Code <= 1071)
throw new DxfInvalidCodeValueEntityException(code.Code, code.Value, this.file,
"The extended data of an entity must start with the application registry code " + this.fileLine);
code = this.ReadCodePair();
break;
}
}
// if there are attributes
string endSequenceHandle = string.Empty;
Layer endSequenceLayer = Layer.Default;
if (code.Value == DxfObjectCode.Attribute)
{
while (code.Value != StringCode.EndSequence)
{
if (code.Value == DxfObjectCode.Attribute)
{
Debug.Assert(code.Code == 0);
Attribute attribute = this.ReadAttribute(block, ref code);
attributes.Add(attribute);
}
}
// read the end end sequence object until a new element is found
code = this.ReadCodePair();
while (code.Code != 0)
{
switch (code.Code)
{
case 5:
endSequenceHandle = code.Value;
code = this.ReadCodePair();
break;
case 8:
endSequenceLayer = this.GetLayer(code.Value);
code = this.ReadCodePair();
break;
default:
code = this.ReadCodePair();
break;
}
}
}
Insert insert = new Insert(block)
{
Color = color,
Layer = layer,
LineType = lineType,
InsertionPoint = basePoint,
Rotation = rotation,
Scale = scale,
Normal = normal,
Handle = handle
};
insert.EndSequence.Handle = endSequenceHandle;
insert.EndSequence.Layer = endSequenceLayer;
insert.Attributes.Clear();
insert.Attributes.AddRange(attributes);
insert.XData = xData;
return insert;
}
private static void WriteDxfFile()
{
DxfDocument dxf = new DxfDocument();
//arc
Arc arc = new Arc(new Vector3f(10, 10, 0), 10, 45, 135);
arc.Layer = new Layer("arc");
arc.Layer.Color.Index = 1;
dxf.AddEntity(arc);
//xData sample
XData xdata = new XData(new ApplicationRegistry("SharpDxf"));
xdata.XDataRecord.Add(new XDataRecord(XDataCode.String, "extended data with SharpDxf"));
xdata.XDataRecord.Add(XDataRecord.OpenControlString);
xdata.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionX, 0));
xdata.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionY, 0));
xdata.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionZ, 0));
xdata.XDataRecord.Add(XDataRecord.CloseControlString);
XData xdata2 = new XData(new ApplicationRegistry("other application"));
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.String, "extended data with SharpDxf"));
xdata2.XDataRecord.Add(XDataRecord.OpenControlString);
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.String, "string record"));
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.Real, 15.5));
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.Long, 350));
xdata2.XDataRecord.Add(XDataRecord.CloseControlString);
//circle
Vector3f extrusion = new Vector3f(1, 1, 1);
Vector3f centerWCS = new Vector3f(1, 1, 1);
Vector3d centerOCS = MathHelper.Transform((Vector3d) centerWCS,
(Vector3d)extrusion,
MathHelper.CoordinateSystem.World,
MathHelper.CoordinateSystem.Object);
Circle circle = new Circle((Vector3f) centerOCS, 5);
circle.Layer = new Layer("circle with spaces");
circle.Layer.Color=AciColor.Yellow;
circle.LineType = LineType.Dashed;
circle.Normal = extrusion;
circle.XData=new Dictionary<ApplicationRegistry, XData>
{
{xdata.ApplicationRegistry, xdata},
{xdata2.ApplicationRegistry, xdata2}
};
dxf.AddEntity(circle);
//points
Point point1 = new Point(new Vector3f(-3, -3, 0));
point1.Layer = new Layer("point");
point1.Color = new AciColor(30);
Point point2 = new Point(new Vector3f(1, 1, 1));
point2.Layer = point1.Layer;
point2.Layer.Color.Index = 9;
point2.Normal = new Vector3f(1, 1, 1);
dxf.AddEntity(point1);
dxf.AddEntity(point2);
//3dface
Face3d face3D = new Face3d(new Vector3f(-5, -5, 5),
new Vector3f(5, -5, 5),
new Vector3f(5, 5, 5),
new Vector3f(-5, 5, 5));
face3D.Layer = new Layer("3dface");
face3D.Layer.Color.Index = 3;
dxf.AddEntity(face3D);
//polyline
PolylineVertex polyVertex;
List<PolylineVertex> polyVertexes = new List<PolylineVertex>();
polyVertex = new PolylineVertex(new Vector2f(-50, -50));
polyVertex.BeginThickness = 2;
polyVertexes.Add(polyVertex);
polyVertex = new PolylineVertex(new Vector2f(50, -50));
polyVertex.BeginThickness = 1;
polyVertexes.Add(polyVertex);
polyVertex = new PolylineVertex(new Vector2f(50, 50));
polyVertex.Bulge = 1;
polyVertexes.Add(polyVertex);
polyVertex = new PolylineVertex(new Vector2f(-50, 50));
polyVertexes.Add(polyVertex);
Polyline polyline2d = new Polyline(polyVertexes, true);
polyline2d.Layer = new Layer("polyline2d");
polyline2d.Layer.Color.Index = 5;
polyline2d.Normal = new Vector3f(1, 1, 1);
polyline2d.Elevation = 100.0f;
dxf.AddEntity(polyline2d);
//lightweight polyline
LightWeightPolylineVertex lwVertex;
List<LightWeightPolylineVertex> lwVertexes = new List<LightWeightPolylineVertex>();
lwVertex = new LightWeightPolylineVertex(new Vector2f(-25, -25));
lwVertex.BeginThickness = 2;
lwVertexes.Add(lwVertex);
lwVertex = new LightWeightPolylineVertex(new Vector2f(25, -25));
lwVertex.BeginThickness = 1;
lwVertexes.Add(lwVertex);
lwVertex = new LightWeightPolylineVertex(new Vector2f(25, 25));
lwVertex.Bulge = 1;
lwVertexes.Add(lwVertex);
lwVertex = new LightWeightPolylineVertex(new Vector2f(-25, 25));
lwVertexes.Add(lwVertex);
LightWeightPolyline lwPolyline = new LightWeightPolyline(lwVertexes, true);
lwPolyline.Layer = new Layer("lwpolyline");
lwPolyline.Layer.Color.Index = 5;
lwPolyline.Normal = new Vector3f(1, 1, 1);
lwPolyline.Elevation = 100.0f;
dxf.AddEntity(lwPolyline);
//line
Line line = new Line(new Vector3f(0, 0, 0), new Vector3f(10, 10, 10));
line.Layer = new Layer("line");
line.Layer.Color.Index = 6;
dxf.AddEntity(line);
//3d polyline
Polyline3dVertex vertex;
List<Polyline3dVertex> vertexes = new List<Polyline3dVertex>();
vertex = new Polyline3dVertex(new Vector3f(-50, -50, 0));
vertexes.Add(vertex);
vertex = new Polyline3dVertex(new Vector3f(50, -50, 10));
vertexes.Add(vertex);
vertex = new Polyline3dVertex(new Vector3f(50, 50, 25));
vertexes.Add(vertex);
vertex = new Polyline3dVertex(new Vector3f(-50, 50, 50));
vertexes.Add(vertex);
Polyline3d polyline = new Polyline3d(vertexes, true);
polyline.Layer = new Layer("polyline3d");
polyline.Layer.Color.Index = 24;
dxf.AddEntity(polyline);
//block definition
Block block = new Block("TestBlock");
block.Entities.Add(new Line(new Vector3f(-5, -5, 5), new Vector3f(5, 5, 5)));
block.Entities.Add(new Line(new Vector3f(5, -5, 5), new Vector3f(-5, 5, 5)));
//insert
Insert insert = new Insert(block, new Vector3f(5, 5, 5));
insert.Layer = new Layer("insert");
insert.Layer.Color.Index = 4;
dxf.AddEntity(insert);
//text
TextStyle style=new TextStyle("True type font","Arial.ttf");
Text text = new Text("Hello world!", Vector3f.Zero, 10.0f,style);
text.Layer = new Layer("text");
text.Layer.Color.Index = 8;
text.Alignment = TextAlignment.TopRight;
dxf.AddEntity(text);
dxf.Save("AutoCad2007.dxf", DxfVersion.AutoCad2007);
dxf.Save("AutoCad2004.dxf", DxfVersion.AutoCad2004);
dxf.Save("AutoCad2000.dxf", DxfVersion.AutoCad2000);
dxf.Save("AutoCad12.dxf", DxfVersion.AutoCad12);
}
private static void BlockAttributes()
{
DxfDocument dxf = new DxfDocument( );
Block block = new Block("BlockWithAttributes");
block.Layer = new Layer("BlockSample");
AttributeDefinition attdef = new AttributeDefinition("NewAttribute");
attdef.Text = "InfoText";
attdef.BasePoint = new Vector3f(1, 1, 1);
attdef.Style.IsVertical = true;
attdef.Rotation = 45;
block.Attributes.Add(attdef.Id, attdef);
block.Entities.Add(new Line(new Vector3f(-5, -5, 0), new Vector3f(5, 5, 0)));
block.Entities.Add(new Line(new Vector3f(5, -5, 0), new Vector3f(-5, 5, 0)));
Insert insert = new Insert(block, new Vector3f(5, 5, 5));
insert.Layer = new Layer("insert");
insert.Rotation = 45;
insert.Layer.Color.Index = 4;
insert.Attributes[0].Value = 24;
Insert insert2 = new Insert(block, new Vector3f(-5, -5, -5));
insert2.Attributes[0].Value = 34;
XData xdata1 = new XData(new ApplicationRegistry("SharpDxf"));
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.String, "extended data with SharpDxf"));
xdata1.XDataRecord.Add(XDataRecord.OpenControlString);
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionX, 0));
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionY, 0));
xdata1.XDataRecord.Add(new XDataRecord(XDataCode.WorldSpacePositionZ, 0));
xdata1.XDataRecord.Add(XDataRecord.CloseControlString);
XData xdata2 = new XData(new ApplicationRegistry("other application"));
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.String, "extended data with SharpDxf"));
xdata2.XDataRecord.Add(XDataRecord.OpenControlString);
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.String, "string record"));
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.Real, 15.5));
xdata2.XDataRecord.Add(new XDataRecord(XDataCode.Long, 350));
xdata2.XDataRecord.Add(XDataRecord.CloseControlString);
insert.XData = new Dictionary<ApplicationRegistry, XData>
{
{xdata1.ApplicationRegistry, xdata1},
};
dxf.AddEntity(insert);
dxf.AddEntity(insert2);
Circle circle = new Circle(Vector3f.Zero, 5);
circle.Layer = new Layer("circle");
circle.Layer.Color.Index = 2;
circle.XData = new Dictionary<ApplicationRegistry, XData>
{
{xdata2.ApplicationRegistry, xdata2},
};
dxf.AddEntity(circle);
dxf.Save("Block with attributes.dxf", DxfVersion.AutoCad2000);
dxf.Load("Block with attributes.dxf");
dxf.Save("Block with attributes result.dxf", DxfVersion.AutoCad2000); // both results must be equal only the handles might be different
}
private void WriteInsert(Insert insert)
{
if (this.activeSection != StringCode.EntitiesSection && ! this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, insert.CodeName);
this.WriteCodePair(5, insert.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(insert);
this.WriteCodePair(100, SubclassMarker.Insert);
this.WriteCodePair(2, insert.Block);
this.WriteCodePair(10, insert.InsertionPoint.X);
this.WriteCodePair(20, insert.InsertionPoint.Y);
this.WriteCodePair(30, insert.InsertionPoint.Z);
this.WriteCodePair(41, insert.Scale.X);
this.WriteCodePair(42, insert.Scale.Y);
this.WriteCodePair(43, insert.Scale.Z);
this.WriteCodePair(50, insert.Rotation);
this.WriteCodePair(210, insert.Normal.X);
this.WriteCodePair(220, insert.Normal.Y);
this.WriteCodePair(230, insert.Normal.Z);
if (insert.Attributes.Count > 0)
{
//Obsolete; formerly an “entities follow flag” (optional; ignore if present)
//but its needed to load the dxf file in AutoCAD
this.WriteCodePair(66, "1");
this.WriteXData(insert.XData);
foreach (Attribute attrib in insert.Attributes)
{
this.WriteAttribute(attrib, insert.InsertionPoint);
}
this.WriteCodePair(0, insert.EndSequence.CodeName);
this.WriteCodePair(5, insert.EndSequence.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, insert.EndSequence.Layer);
}
else
{
this.WriteXData(insert.XData);
}
}
