www.pudn.com > netdxf-14863.zip > Writer.cs, change:2011-11-15,size:57943b
#region netDxf, Copyright(C) 2009 Daniel Carvajal, Licensed under LGPL.
// netDxf library
// Copyright (C) 2009 Daniel Carvajal (haplokuon@gmail.com)
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#endregion
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
using System.Threading;
using netDxf.Blocks;
using netDxf.Entities;
using netDxf.Header;
using netDxf.Objects;
using netDxf.Tables;
using Attribute=netDxf.Entities.Attribute;
namespace netDxf
{
/// <summary>
/// Low level dxf writer.
/// </summary>
internal sealed class DxfWriter
{
#region private fields
private int reservedHandles = 10;
private readonly string file;
private bool isFileOpen;
private string activeSection = StringCode.Unknown;
private string activeTable = StringCode.Unknown;
private bool isHeader;
private bool isClassesSection;
private bool isTableSection;
private bool isBlockDefinition;
private bool isBlockEntities;
private bool isEntitiesSection;
private bool isObjectsSection;
private Stream output;
private StreamWriter writer;
private readonly DxfVersion version;
#endregion
#region constructors
public DxfWriter(string file, DxfVersion version)
{
Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
this.file = file;
this.version = version;
}
#endregion
#region public properties
/// <summary>
/// Gets the active section.
/// </summary>
public String ActiveSection
{
get { return this.activeSection; }
}
/// <summary>
/// Gets if the file is opent.
/// </summary>
public bool IsFileOpen
{
get { return this.isFileOpen; }
}
#endregion
#region public methods
public void Open()
{
if (this.isFileOpen)
{
throw new DxfException(this.file, "The file is already open");
}
try
{
this.output = File.Create(this.file);
this.writer = new StreamWriter(this.output, Encoding.ASCII);
this.isFileOpen = true;
}
catch (Exception ex)
{
throw (new DxfException(this.file, "Error when trying to create the dxf file", ex));
}
}
/// <summary>
/// Closes the dxf file.
/// </summary>
public void Close()
{
if (this.activeSection != StringCode.Unknown)
{
throw new OpenDxfSectionException(this.activeSection, this.file);
}
if (this.activeTable != StringCode.Unknown)
{
throw new OpenDxfTableException(this.activeTable, this.file);
}
this.WriteCodePair(0, StringCode.EndOfFile);
if (this.isFileOpen)
{
this.writer.Close();
this.output.Close();
}
this.isFileOpen = false;
}
/// <summary>
/// Opens a new section.
/// </summary>
/// <param name="section">Section type to open.</param>
/// <remarks>There can be only one type section.</remarks>
public void BeginSection(string section)
{
if (! this.isFileOpen)
{
throw new DxfException(this.file, "The file is not open");
}
if (this.activeSection != StringCode.Unknown)
{
throw new OpenDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, StringCode.BeginSection);
if (section == StringCode.HeaderSection)
{
if (this.isHeader)
{
throw (new ClosedDxfSectionException(StringCode.HeaderSection, this.file));
}
this.WriteCodePair(2, StringCode.HeaderSection);
this.isHeader = true;
}
if (section == StringCode.ClassesSection)
{
if (this.isClassesSection)
{
throw (new ClosedDxfSectionException(StringCode.ClassesSection, this.file));
}
this.WriteCodePair(2, StringCode.ClassesSection);
this.isClassesSection = true;
}
if (section == StringCode.TablesSection)
{
if (this.isTableSection)
{
throw (new ClosedDxfSectionException(StringCode.TablesSection, this.file));
}
this.WriteCodePair(2, StringCode.TablesSection);
this.isTableSection = true;
}
if (section == StringCode.BlocksSection)
{
if (this.isBlockDefinition)
{
throw (new ClosedDxfSectionException(StringCode.BlocksSection, this.file));
}
this.WriteCodePair(2, StringCode.BlocksSection);
this.isBlockDefinition = true;
}
if (section == StringCode.EntitiesSection)
{
if (this.isEntitiesSection)
{
throw (new ClosedDxfSectionException(StringCode.EntitiesSection, this.file));
}
this.WriteCodePair(2, StringCode.EntitiesSection);
this.isEntitiesSection = true;
}
if (section == StringCode.ObjectsSection)
{
if (this.isObjectsSection)
{
throw (new ClosedDxfSectionException(StringCode.ObjectsSection, this.file));
}
this.WriteCodePair(2, StringCode.ObjectsSection);
this.isObjectsSection = true;
}
this.activeSection = section;
}
/// <summary>
/// Closes the active section.
/// </summary>
public void EndSection()
{
if (this.activeSection == StringCode.Unknown)
{
throw new ClosedDxfSectionException(StringCode.Unknown, this.file);
}
this.WriteCodePair(0, StringCode.EndSection);
switch (this.activeSection)
{
case StringCode.HeaderSection:
this.isEntitiesSection = false;
break;
case StringCode.ClassesSection:
this.isEntitiesSection = false;
break;
case StringCode.TablesSection:
this.isTableSection = false;
break;
case StringCode.BlocksSection:
this.isBlockDefinition = true;
break;
case StringCode.EntitiesSection:
this.isEntitiesSection = false;
break;
case StringCode.ObjectsSection:
this.isEntitiesSection = false;
break;
}
this.activeSection = StringCode.Unknown;
}
/// <summary>
/// Opens a new table.
/// </summary>
/// <param name="table">Table type to open.</param>
public void BeginTable(string table)
{
if (! this.isFileOpen)
{
throw new DxfException(this.file, "The file is not open");
}
if (this.activeTable != StringCode.Unknown)
{
throw new OpenDxfTableException(table, this.file);
}
this.WriteCodePair(0, StringCode.Table);
this.WriteCodePair(2, table);
this.WriteCodePair(5, this.reservedHandles++);
this.WriteCodePair(100, SubclassMarker.Table);
if (table == StringCode.DimensionStyleTable)
this.WriteCodePair(100, SubclassMarker.DimensionStyleTable);
this.activeTable = table;
}
/// <summary>
/// Closes the active table.
/// </summary>
public void EndTable()
{
if (this.activeTable == StringCode.Unknown)
{
throw new ClosedDxfTableException(StringCode.Unknown, this.file);
}
this.WriteCodePair(0, StringCode.EndTable);
this.activeTable = StringCode.Unknown;
}
#endregion
#region methods for Header section
public void WriteComment(string comment)
{
if (!string.IsNullOrEmpty(comment))
this.WriteCodePair(999, comment);
}
public void WriteSystemVariable(HeaderVariable variable)
{
if (this.activeSection != StringCode.HeaderSection)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(HeaderVariable.NAME_CODE_GROUP, variable.Name);
this.WriteCodePair(variable.CodeGroup, variable.Value);
}
#endregion
#region methods for Table section
/// <summary>
/// Writes a new extended data application registry to the table section.
/// </summary>
/// <param name="appReg">Nombre del registro de aplicación.</param>
public void RegisterApplication(ApplicationRegistry appReg)
{
if (this.activeTable != StringCode.ApplicationIDTable)
{
throw new InvalidDxfTableException(StringCode.ApplicationIDTable, this.file);
}
this.WriteCodePair(0, StringCode.ApplicationIDTable);
this.WriteCodePair(5, appReg.Handle);
this.WriteCodePair(100, SubclassMarker.TableRecord);
this.WriteCodePair(100, SubclassMarker.ApplicationId);
this.WriteCodePair(2, appReg);
this.WriteCodePair(70, 0);
}
/// <summary>
/// Writes a new view port to the table section.
/// </summary>
/// <param name="vp">Viewport.</param>
public void WriteViewPort(ViewPort vp)
{
if (this.activeTable != StringCode.ViewPortTable)
{
throw new InvalidDxfTableException(this.activeTable, this.file);
}
this.WriteCodePair(0, vp.CodeName);
this.WriteCodePair(5, vp.Handle);
this.WriteCodePair(100, SubclassMarker.TableRecord);
this.WriteCodePair(100, SubclassMarker.ViewPort);
this.WriteCodePair(2, vp);
this.WriteCodePair(70, 0);
this.WriteCodePair(10, vp.LowerLeftCorner.X);
this.WriteCodePair(20, vp.LowerLeftCorner.Y);
this.WriteCodePair(11, vp.UpperRightCorner.X);
this.WriteCodePair(21, vp.UpperRightCorner.Y);
this.WriteCodePair(12, vp.LowerLeftCorner.X - vp.UpperRightCorner.X);
this.WriteCodePair(22, vp.UpperRightCorner.Y - vp.LowerLeftCorner.Y);
this.WriteCodePair(13, vp.SnapBasePoint.X);
this.WriteCodePair(23, vp.SnapBasePoint.Y);
this.WriteCodePair(14, vp.SnapSpacing.X);
this.WriteCodePair(24, vp.SnapSpacing.Y);
this.WriteCodePair(15, vp.GridSpacing.X);
this.WriteCodePair(25, vp.GridSpacing.Y);
Vector3f dir = vp.Camera - vp.Target;
this.WriteCodePair(16, dir.X);
this.WriteCodePair(26, dir.Y);
this.WriteCodePair(36, dir.Z);
this.WriteCodePair(17, vp.Target.X);
this.WriteCodePair(27, vp.Target.Y);
this.WriteCodePair(37, vp.Target.Z);
}
/// <summary>
/// Writes a new dimension style to the table section.
/// </summary>
/// <param name="dimStyle">DimensionStyle.</param>
public void WriteDimensionStyle(DimensionStyle dimStyle)
{
if (this.activeTable != StringCode.DimensionStyleTable)
{
throw new InvalidDxfTableException(this.activeTable, this.file);
}
this.WriteCodePair(0, dimStyle.CodeName);
this.WriteCodePair(105, dimStyle.Handle);
this.WriteCodePair(100, SubclassMarker.TableRecord);
this.WriteCodePair(100, SubclassMarker.DimensionStyle);
this.WriteCodePair(2, dimStyle);
// flags
this.WriteCodePair(70, 0);
}
/// <summary>
/// Writes a new block record to the table section.
/// </summary>
/// <param name="blockRecord">Block.</param>
public void WriteBlockRecord(BlockRecord blockRecord)
{
if (this.activeTable != StringCode.BlockRecordTable)
{
throw new InvalidDxfTableException(this.activeTable, this.file);
}
this.WriteCodePair(0, blockRecord.CodeName);
this.WriteCodePair(5, blockRecord.Handle);
this.WriteCodePair(100, SubclassMarker.TableRecord);
this.WriteCodePair(100, SubclassMarker.BlockRecord);
this.WriteCodePair(2, blockRecord);
}
/// <summary>
/// Writes a new line type to the table section.
/// </summary>
/// <param name="tl">Line type.</param>
public void WriteLineType(LineType tl)
{
if (this.version == DxfVersion.AutoCad12)
if (tl.Name == "ByLayer" || tl.Name == "ByBlock")
return;
if (this.activeTable != StringCode.LineTypeTable)
{
throw new InvalidDxfTableException(this.activeTable, this.file);
}
this.WriteCodePair(0, tl.CodeName);
this.WriteCodePair(5, tl.Handle);
this.WriteCodePair(100, SubclassMarker.TableRecord);
this.WriteCodePair(100, SubclassMarker.LineType);
this.WriteCodePair(70, 0);
this.WriteCodePair(2, tl);
this.WriteCodePair(3, tl.Description);
this.WriteCodePair(72, 65);
this.WriteCodePair(73, tl.Segments.Count);
this.WriteCodePair(40, tl.Legth());
foreach (float s in tl.Segments)
{
this.WriteCodePair(49, s);
if (this.version != DxfVersion.AutoCad12)
this.WriteCodePair(74, 0);
}
}
/// <summary>
/// Writes a new layer to the table section.
/// </summary>
/// <param name="layer">Layer.</param>
public void WriteLayer(Layer layer)
{
if (this.activeTable != StringCode.LayerTable)
{
throw new InvalidDxfTableException(this.activeTable, this.file);
}
this.WriteCodePair(0, layer.CodeName);
this.WriteCodePair(5, layer.Handle);
this.WriteCodePair(100, SubclassMarker.TableRecord);
this.WriteCodePair(100, SubclassMarker.Layer);
this.WriteCodePair(70, 0);
this.WriteCodePair(2, layer);
//a negative color represents a hidden layer.
if (layer.IsVisible)
{
this.WriteCodePair(62, layer.Color.Index);
}
else
{
this.WriteCodePair(62, -layer.Color.Index);
}
this.WriteCodePair(6, layer.LineType.Name);
if (this.version != DxfVersion.AutoCad12)
this.WriteCodePair(390, Layer.PlotStyleHandle);
}
/// <summary>
/// Writes a new text style to the table section.
/// </summary>
/// <param name="style">TextStyle.</param>
public void WriteTextStyle(TextStyle style)
{
if (this.activeTable != StringCode.TextStyleTable)
{
throw new InvalidDxfTableException(this.activeTable, this.file);
}
this.WriteCodePair(0, style.CodeName);
this.WriteCodePair(5, style.Handle);
this.WriteCodePair(100, SubclassMarker.TableRecord);
this.WriteCodePair(100, SubclassMarker.TextStyle);
this.WriteCodePair(2, style);
this.WriteCodePair(3, style.Font);
if (style.IsVertical)
{
this.WriteCodePair(70, 4);
}
else
{
this.WriteCodePair(70, 0);
}
if (style.IsBackward && style.IsUpsideDown)
{
this.WriteCodePair(71, 6);
}
else if (style.IsBackward)
{
this.WriteCodePair(71, 2);
}
else if (style.IsUpsideDown)
{
this.WriteCodePair(71, 4);
}
else
{
this.WriteCodePair(71, 0);
}
this.WriteCodePair(40, style.Height);
this.WriteCodePair(41, style.WidthFactor);
this.WriteCodePair(42, style.Height);
this.WriteCodePair(50, style.ObliqueAngle);
}
#endregion
#region methods for Block section
public void WriteBlock(Block block, List<IEntityObject> entityObjects)
{
if (this.version == DxfVersion.AutoCad12)
if (block.Name == "*Model_Space" || block.Name == "*Paper_Space")
return;
if (this.activeSection != StringCode.BlocksSection)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, block.CodeName);
this.WriteCodePair(5, block.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, block.Layer);
this.WriteCodePair(100, SubclassMarker.BlockBegin);
this.WriteCodePair(2, block);
//flags
if (block.Attributes.Count == 0)
{
this.WriteCodePair(70, 0);
}
else
{
this.WriteCodePair(70, 2);
}
this.WriteCodePair(10, block.BasePoint.X);
this.WriteCodePair(20, block.BasePoint.Y);
this.WriteCodePair(30, block.BasePoint.Z);
this.WriteCodePair(3, block);
foreach (AttributeDefinition attdef in block.Attributes.Values)
{
this.WriteAttributeDefinition(attdef);
}
//block entities, if version is AutoCad12 we will write the converted entities
this.isBlockEntities = true;
foreach (IEntityObject entity in entityObjects)
{
this.WriteEntity(entity);
}
this.isBlockEntities = false;
this.WriteBlockEnd(block.End);
}
public void WriteBlockEnd(BlockEnd blockEnd)
{
this.WriteCodePair(0, blockEnd.CodeName);
this.WriteCodePair(5, blockEnd.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, blockEnd.Layer);
this.WriteCodePair(100, SubclassMarker.BlockEnd);
}
#endregion
#region methods for Entity section
public void WriteEntity(IEntityObject entity)
{
switch (entity.Type)
{
case EntityType.Arc:
this.WriteArc((Arc) entity);
break;
case EntityType.Circle:
this.WriteCircle((Circle) entity);
break;
case EntityType.Ellipse:
this.WriteEllipse((Ellipse) entity);
break;
case EntityType.NurbsCurve:
this.WriteNurbsCurve((NurbsCurve) entity);
break;
case EntityType.Point:
this.WritePoint((Point) entity);
break;
case EntityType.Face3D:
this.WriteFace3D((Face3d) entity);
break;
case EntityType.Solid:
this.WriteSolid((Solid) entity);
break;
case EntityType.Insert:
this.WriteInsert((Insert) entity);
break;
case EntityType.Line:
this.WriteLine((Line) entity);
break;
case EntityType.LightWeightPolyline:
this.WriteLightWeightPolyline((LightWeightPolyline) entity);
break;
case EntityType.Polyline:
this.WritePolyline2d((Polyline) entity);
break;
case EntityType.Polyline3d:
this.WritePolyline3d((Polyline3d) entity);
break;
case EntityType.PolyfaceMesh:
this.WritePolyfaceMesh((PolyfaceMesh) entity);
break;
case EntityType.Text:
this.WriteText((Text) entity);
break;
default:
throw new NotImplementedException(entity.Type.ToString());
}
}
private void WriteArc(Arc arc)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, arc.CodeName);
this.WriteCodePair(5, arc.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(arc);
this.WriteCodePair(100, SubclassMarker.Circle);
this.WriteCodePair(39, arc.Thickness);
this.WriteCodePair(10, arc.Center.X);
this.WriteCodePair(20, arc.Center.Y);
this.WriteCodePair(30, arc.Center.Z);
this.WriteCodePair(40, arc.Radius);
this.WriteCodePair(210, arc.Normal.X);
this.WriteCodePair(220, arc.Normal.Y);
this.WriteCodePair(230, arc.Normal.Z);
this.WriteCodePair(100, SubclassMarker.Arc);
this.WriteCodePair(50, arc.StartAngle);
this.WriteCodePair(51, arc.EndAngle);
this.WriteXData(arc.XData);
}
private void WriteCircle(Circle circle)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, circle.CodeName);
this.WriteCodePair(5, circle.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(circle);
this.WriteCodePair(100, SubclassMarker.Circle);
this.WriteCodePair(10, circle.Center.X);
this.WriteCodePair(20, circle.Center.Y);
this.WriteCodePair(30, circle.Center.Z);
this.WriteCodePair(40, circle.Radius);
this.WriteCodePair(39, circle.Thickness);
this.WriteCodePair(210, circle.Normal.X);
this.WriteCodePair(220, circle.Normal.Y);
this.WriteCodePair(230, circle.Normal.Z);
this.WriteXData(circle.XData);
}
private void WriteEllipse(Ellipse ellipse)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
if (this.version == DxfVersion.AutoCad12)
{
this.WriteEllipseAsPolyline(ellipse);
return;
}
this.WriteCodePair(0, ellipse.CodeName);
this.WriteCodePair(5, ellipse.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(ellipse);
this.WriteCodePair(100, SubclassMarker.Ellipse);
this.WriteCodePair(10, ellipse.Center.X);
this.WriteCodePair(20, ellipse.Center.Y);
this.WriteCodePair(30, ellipse.Center.Z);
float sine = (float) (0.5*ellipse.MajorAxis*Math.Sin(ellipse.Rotation*MathHelper.DegToRad));
float cosine = (float) (0.5*ellipse.MajorAxis*Math.Cos(ellipse.Rotation*MathHelper.DegToRad));
Vector3d axisPoint = MathHelper.Transform((Vector3d) new Vector3f(cosine, sine, 0),
(Vector3d) ellipse.Normal,
MathHelper.CoordinateSystem.Object,
MathHelper.CoordinateSystem.World);
this.WriteCodePair(11, axisPoint.X);
this.WriteCodePair(21, axisPoint.Y);
this.WriteCodePair(31, axisPoint.Z);
this.WriteCodePair(210, ellipse.Normal.X);
this.WriteCodePair(220, ellipse.Normal.Y);
this.WriteCodePair(230, ellipse.Normal.Z);
this.WriteCodePair(40, ellipse.MinorAxis/ellipse.MajorAxis);
this.WriteCodePair(41, ellipse.StartAngle*MathHelper.DegToRad);
this.WriteCodePair(42, ellipse.EndAngle*MathHelper.DegToRad);
this.WriteXData(ellipse.XData);
}
private void WriteEllipseAsPolyline(Ellipse ellipse)
{
//we will draw the ellipse as a polyline, it is not supported in AutoCad12 dxf files
this.WriteCodePair(0, DxfObjectCode.Polyline);
this.WriteEntityCommonCodes(ellipse);
//closed polyline
this.WriteCodePair(70, 1);
//dummy point
this.WriteCodePair(10, 0.0f);
this.WriteCodePair(20, 0.0f);
this.WriteCodePair(30, ellipse.Center.Z);
this.WriteCodePair(39, ellipse.Thickness);
this.WriteCodePair(210, ellipse.Normal.X);
this.WriteCodePair(220, ellipse.Normal.Y);
this.WriteCodePair(230, ellipse.Normal.Z);
//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(ellipse.XData);
List<Vector2f> points = ellipse.PolygonalVertexes(ellipse.CurvePoints);
foreach (Vector2f v in points)
{
this.WriteCodePair(0, DxfObjectCode.Vertex);
this.WriteCodePair(8, ellipse.Layer);
this.WriteCodePair(70, 0);
this.WriteCodePair(10, v.X);
this.WriteCodePair(20, v.Y);
}
this.WriteCodePair(0, StringCode.EndSequence);
}
private void WriteNurbsCurve(NurbsCurve nurbsCurve)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
//we will draw the nurbsCurve as a polyline, it is not supported in AutoCad12 dxf files
this.WriteCodePair(0, DxfObjectCode.Polyline);
this.WriteEntityCommonCodes(nurbsCurve);
//open polyline
this.WriteCodePair(70, 0);
//dummy point
this.WriteCodePair(10, 0.0f);
this.WriteCodePair(20, 0.0f);
this.WriteCodePair(30, nurbsCurve.Elevation);
this.WriteCodePair(39, nurbsCurve.Thickness);
this.WriteCodePair(210, nurbsCurve.Normal.X);
this.WriteCodePair(220, nurbsCurve.Normal.Y);
this.WriteCodePair(230, nurbsCurve.Normal.Z);
//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(nurbsCurve.XData);
List<Vector2f> points = nurbsCurve.PolygonalVertexes(nurbsCurve.CurvePoints);
foreach (Vector2f v in points)
{
this.WriteCodePair(0, DxfObjectCode.Vertex);
this.WriteCodePair(8, nurbsCurve.Layer);
this.WriteCodePair(70, 0);
this.WriteCodePair(10, v.X);
this.WriteCodePair(20, v.Y);
}
this.WriteCodePair(0, StringCode.EndSequence);
}
private void WriteSolid(Solid solid)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, solid.CodeName);
this.WriteCodePair(5, solid.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(solid);
this.WriteCodePair(100, SubclassMarker.Solid);
this.WriteCodePair(10, solid.FirstVertex.X);
this.WriteCodePair(20, solid.FirstVertex.Y);
this.WriteCodePair(30, solid.FirstVertex.Z);
this.WriteCodePair(11, solid.SecondVertex.X);
this.WriteCodePair(21, solid.SecondVertex.Y);
this.WriteCodePair(31, solid.SecondVertex.Z);
this.WriteCodePair(12, solid.ThirdVertex.X);
this.WriteCodePair(22, solid.ThirdVertex.Y);
this.WriteCodePair(32, solid.ThirdVertex.Z);
this.WriteCodePair(13, solid.FourthVertex.X);
this.WriteCodePair(23, solid.FourthVertex.Y);
this.WriteCodePair(33, solid.FourthVertex.Z);
this.WriteCodePair(39, solid.Thickness);
this.WriteCodePair(210, solid.Normal.X);
this.WriteCodePair(220, solid.Normal.Y);
this.WriteCodePair(230, solid.Normal.Z);
this.WriteXData(solid.XData);
}
private void WriteFace3D(Face3d face)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, face.CodeName);
this.WriteCodePair(5, face.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(face);
this.WriteCodePair(100, SubclassMarker.Face3d);
this.WriteCodePair(10, face.FirstVertex.X);
this.WriteCodePair(20, face.FirstVertex.Y);
this.WriteCodePair(30, face.FirstVertex.Z);
this.WriteCodePair(11, face.SecondVertex.X);
this.WriteCodePair(21, face.SecondVertex.Y);
this.WriteCodePair(31, face.SecondVertex.Z);
this.WriteCodePair(12, face.ThirdVertex.X);
this.WriteCodePair(22, face.ThirdVertex.Y);
this.WriteCodePair(32, face.ThirdVertex.Z);
this.WriteCodePair(13, face.FourthVertex.X);
this.WriteCodePair(23, face.FourthVertex.Y);
this.WriteCodePair(33, face.FourthVertex.Z);
this.WriteCodePair(70, Convert.ToInt32(face.EdgeFlags));
this.WriteXData(face.XData);
}
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);
}
}
private void WriteLine(Line line)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, line.CodeName);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(line);
this.WriteCodePair(5, line.Handle);
this.WriteCodePair(100, SubclassMarker.Line);
this.WriteCodePair(10, line.StartPoint.X);
this.WriteCodePair(20, line.StartPoint.Y);
this.WriteCodePair(30, line.StartPoint.Z);
this.WriteCodePair(11, line.EndPoint.X);
this.WriteCodePair(21, line.EndPoint.Y);
this.WriteCodePair(31, line.EndPoint.Z);
this.WriteCodePair(39, line.Thickness);
this.WriteCodePair(210, line.Normal.X);
this.WriteCodePair(220, line.Normal.Y);
this.WriteCodePair(230, line.Normal.Z);
this.WriteXData(line.XData);
}
private void WritePolyline2d(Polyline polyline)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, polyline.CodeName);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(polyline);
this.WriteCodePair(5, polyline.Handle);
this.WriteCodePair(100, SubclassMarker.Polyline);
this.WriteCodePair(70, (int) polyline.Flags);
//dummy point
this.WriteCodePair(10, 0.0);
this.WriteCodePair(20, 0.0);
this.WriteCodePair(30, polyline.Elevation);
this.WriteCodePair(39, polyline.Thickness);
this.WriteCodePair(210, polyline.Normal.X);
this.WriteCodePair(220, polyline.Normal.Y);
this.WriteCodePair(230, polyline.Normal.Z);
//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(polyline.XData);
foreach (PolylineVertex v in polyline.Vertexes)
{
this.WriteCodePair(0, v.CodeName);
this.WriteCodePair(5, v.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, v.Layer);
this.WriteCodePair(100, SubclassMarker.Vertex);
this.WriteCodePair(100, SubclassMarker.PolylineVertex);
this.WriteCodePair(70, (int) v.Flags);
this.WriteCodePair(10, v.Location.X);
this.WriteCodePair(20, v.Location.Y);
this.WriteCodePair(40, v.BeginThickness);
this.WriteCodePair(41, v.EndThickness);
this.WriteCodePair(42, v.Bulge);
this.WriteXData(v.XData);
}
this.WriteCodePair(0, polyline.EndSequence.CodeName);
this.WriteCodePair(5, polyline.EndSequence.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, polyline.EndSequence.Layer);
}
private void WriteLightWeightPolyline(LightWeightPolyline polyline)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, DxfObjectCode.LightWeightPolyline);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(polyline);
this.WriteCodePair(5, polyline.Handle);
this.WriteCodePair(100, SubclassMarker.LightWeightPolyline);
this.WriteCodePair(90, polyline.Vertexes.Count);
this.WriteCodePair(70, (int) polyline.Flags);
this.WriteCodePair(38, polyline.Elevation);
this.WriteCodePair(39, polyline.Thickness);
foreach (LightWeightPolylineVertex v in polyline.Vertexes)
{
this.WriteCodePair(10, v.Location.X);
this.WriteCodePair(20, v.Location.Y);
this.WriteCodePair(40, v.BeginThickness);
this.WriteCodePair(41, v.EndThickness);
this.WriteCodePair(42, v.Bulge);
}
this.WriteCodePair(210, polyline.Normal.X);
this.WriteCodePair(220, polyline.Normal.Y);
this.WriteCodePair(230, polyline.Normal.Z);
this.WriteXData(polyline.XData);
}
private void WritePolyline3d(Polyline3d polyline)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, polyline.CodeName);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(polyline);
this.WriteCodePair(5, polyline.Handle);
this.WriteCodePair(100, SubclassMarker.Polyline3d);
this.WriteCodePair(70, (int) polyline.Flags);
//dummy point
this.WriteCodePair(10, 0.0);
this.WriteCodePair(20, 0.0);
this.WriteCodePair(30, 0.0);
//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(polyline.XData);
foreach (Polyline3dVertex v in polyline.Vertexes)
{
this.WriteCodePair(0, v.CodeName);
this.WriteCodePair(5, v.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, v.Layer);
this.WriteCodePair(100, SubclassMarker.Vertex);
this.WriteCodePair(100, SubclassMarker.Polyline3dVertex);
this.WriteCodePair(70, (int) v.Flags);
this.WriteCodePair(10, v.Location.X);
this.WriteCodePair(20, v.Location.Y);
this.WriteCodePair(30, v.Location.Z);
this.WriteXData(v.XData);
}
this.WriteCodePair(0, polyline.EndSequence.CodeName);
this.WriteCodePair(5, polyline.EndSequence.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, polyline.EndSequence.Layer);
}
private void WritePolyfaceMesh(PolyfaceMesh mesh)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, mesh.CodeName);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(mesh);
this.WriteCodePair(5, mesh.Handle);
this.WriteCodePair(100, SubclassMarker.PolyfaceMesh);
this.WriteCodePair(70, (int) mesh.Flags);
this.WriteCodePair(71, mesh.Vertexes.Count);
this.WriteCodePair(72, mesh.Faces.Count);
//dummy point
this.WriteCodePair(10, 0.0);
this.WriteCodePair(20, 0.0);
this.WriteCodePair(30, 0.0);
//Obsolete; formerly an “entities follow flag” (optional; ignore if present)
//but its needed to load the dxf file in AutoCAD
this.WriteCodePair(66, "1");
if (mesh.XData != null)
{
this.WriteXData(mesh.XData);
}
foreach (PolyfaceMeshVertex v in mesh.Vertexes)
{
this.WriteCodePair(0, v.CodeName);
this.WriteCodePair(5, v.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, v.Layer);
this.WriteCodePair(100, SubclassMarker.Vertex);
this.WriteCodePair(100, SubclassMarker.PolyfaceMeshVertex);
this.WriteCodePair(70, (int) v.Flags);
this.WriteCodePair(10, v.Location.X);
this.WriteCodePair(20, v.Location.Y);
this.WriteCodePair(30, v.Location.Z);
this.WriteXData(v.XData);
}
foreach (PolyfaceMeshFace face in mesh.Faces)
{
this.WriteCodePair(0, face.CodeName);
this.WriteCodePair(5, face.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, face.Layer);
this.WriteCodePair(100, SubclassMarker.PolyfaceMeshFace);
this.WriteCodePair(70, (int) VertexTypeFlags.PolyfaceMeshVertex);
this.WriteCodePair(10, 0);
this.WriteCodePair(20, 0);
this.WriteCodePair(30, 0);
this.WriteCodePair(71, face.VertexIndexes[0]);
this.WriteCodePair(72, face.VertexIndexes[1]);
this.WriteCodePair(73, face.VertexIndexes[2]);
}
this.WriteCodePair(0, mesh.EndSequence.CodeName);
this.WriteCodePair(5, mesh.EndSequence.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteCodePair(8, mesh.EndSequence.Layer);
}
private void WritePoint(Point point)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, point.CodeName);
this.WriteCodePair(5, point.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(point);
this.WriteCodePair(100, SubclassMarker.Point);
this.WriteCodePair(10, point.Location.X);
this.WriteCodePair(20, point.Location.Y);
this.WriteCodePair(30, point.Location.Z);
this.WriteCodePair(39, point.Thickness);
this.WriteCodePair(210, point.Normal.X);
this.WriteCodePair(220, point.Normal.Y);
this.WriteCodePair(230, point.Normal.Z);
this.WriteXData(point.XData);
}
private void WriteText(Text text)
{
if (this.activeSection != StringCode.EntitiesSection && !this.isBlockEntities)
{
throw new InvalidDxfSectionException(this.activeSection, this.file);
}
this.WriteCodePair(0, text.CodeName);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(text);
this.WriteCodePair(5, text.Handle);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(1, text.Value);
this.WriteCodePair(10, text.BasePoint.X);
this.WriteCodePair(20, text.BasePoint.Y);
this.WriteCodePair(30, text.BasePoint.Z);
this.WriteCodePair(40, text.Height);
this.WriteCodePair(41, text.WidthFactor);
this.WriteCodePair(50, text.Rotation);
this.WriteCodePair(51, text.ObliqueAngle);
this.WriteCodePair(7, text.Style);
this.WriteCodePair(11, text.BasePoint.X);
this.WriteCodePair(21, text.BasePoint.Y);
this.WriteCodePair(31, text.BasePoint.Z);
this.WriteCodePair(210, text.Normal.X);
this.WriteCodePair(220, text.Normal.Y);
this.WriteCodePair(230, text.Normal.Z);
switch (text.Alignment)
{
case TextAlignment.TopLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 3);
break;
case TextAlignment.TopCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 3);
break;
case TextAlignment.TopRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 3);
break;
case TextAlignment.MiddleLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 2);
break;
case TextAlignment.MiddleCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 2);
break;
case TextAlignment.MiddleRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 2);
break;
case TextAlignment.BottomLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 1);
break;
case TextAlignment.BottomCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 1);
break;
case TextAlignment.BottomRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 1);
break;
case TextAlignment.BaselineLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 0);
break;
case TextAlignment.BaselineCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 0);
break;
case TextAlignment.BaselineRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(73, 0);
break;
}
this.WriteXData(text.XData);
}
#endregion
#region methods for Entity section
public void WriteDictionary(Dictionary dictionary)
{
//if (this.activeTable != StringCode.ObjectsSection)
//{
// throw new InvalidDxfTableException(this.activeTable, this.file);
//}
this.WriteCodePair(0, StringCode.Dictionary);
this.WriteCodePair(5, Convert.ToString(10, 16));
this.WriteCodePair(100, SubclassMarker.Dictionary);
this.WriteCodePair(281, 1);
this.WriteCodePair(3, dictionary);
this.WriteCodePair(350, Convert.ToString(11, 16));
this.WriteCodePair(0, StringCode.Dictionary);
this.WriteCodePair(5, Convert.ToString(11, 16));
this.WriteCodePair(100, SubclassMarker.Dictionary);
this.WriteCodePair(281, 1);
}
#endregion
#region private methods
private void WriteAttributeDefinition(AttributeDefinition def)
{
this.WriteCodePair(0, DxfObjectCode.AttributeDefinition);
this.WriteCodePair(5, def.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(def);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(10, def.BasePoint.X);
this.WriteCodePair(20, def.BasePoint.Y);
this.WriteCodePair(30, def.BasePoint.Z);
this.WriteCodePair(40, def.Height);
this.WriteCodePair(1, def.Value);
this.WriteCodePair(7, def.Style);
this.WriteCodePair(41, def.WidthFactor);
this.WriteCodePair(50, def.Rotation);
this.WriteCodePair(100, SubclassMarker.AttributeDefinition);
this.WriteCodePair(2, def.Id);
this.WriteCodePair(3, def.Text);
this.WriteCodePair(70, (int) def.Flags);
switch (def.Alignment)
{
case TextAlignment.TopLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(74, 3);
break;
case TextAlignment.TopCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(74, 3);
break;
case TextAlignment.TopRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(74, 3);
break;
case TextAlignment.MiddleLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(74, 2);
break;
case TextAlignment.MiddleCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(74, 2);
break;
case TextAlignment.MiddleRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(74, 2);
break;
case TextAlignment.BottomLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(74, 1);
break;
case TextAlignment.BottomCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(74, 1);
break;
case TextAlignment.BottomRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(74, 1);
break;
case TextAlignment.BaselineLeft:
this.WriteCodePair(72, 0);
this.WriteCodePair(74, 0);
break;
case TextAlignment.BaselineCenter:
this.WriteCodePair(72, 1);
this.WriteCodePair(74, 0);
break;
case TextAlignment.BaselineRight:
this.WriteCodePair(72, 2);
this.WriteCodePair(74, 0);
break;
}
this.WriteCodePair(11, def.BasePoint.X);
this.WriteCodePair(21, def.BasePoint.Y);
this.WriteCodePair(31, def.BasePoint.Z);
}
private void WriteAttribute(Attribute attrib, Vector3f puntoInsercion)
{
this.WriteCodePair(0, DxfObjectCode.Attribute);
this.WriteCodePair(5, attrib.Handle);
this.WriteCodePair(100, SubclassMarker.Entity);
this.WriteEntityCommonCodes(attrib);
this.WriteCodePair(100, SubclassMarker.Text);
this.WriteCodePair(10, attrib.Definition.BasePoint.X + puntoInsercion.X);
this.WriteCodePair(20, attrib.Definition.BasePoint.Y + puntoInsercion.Y);
this.WriteCodePair(30, attrib.Definition.BasePoint.Z + puntoInsercion.Z);
this.WriteCodePair(1, attrib.Value);
this.WriteCodePair(40, attrib.Definition.Height);
this.WriteCodePair(41, attrib.Definition.WidthFactor);
this.WriteCodePair(50, attrib.Definition.Rotation);
this.WriteCodePair(7, attrib.Definition.Style);
this.WriteCodePair(100, SubclassMarker.Attribute);
this.WriteCodePair(2, attrib.Definition.Id);
this.WriteCodePair(70, (int) attrib.Definition.Flags);
this.WriteCodePair(11, attrib.Definition.BasePoint.X + puntoInsercion.X);
this.WriteCodePair(21, attrib.Definition.BasePoint.Y + puntoInsercion.Y);
this.WriteCodePair(31, attrib.Definition.BasePoint.Z + puntoInsercion.Z);
}
private void WriteXData(Dictionary<ApplicationRegistry, XData> xData)
{
if (xData == null)
return;
foreach (ApplicationRegistry appReg in xData.Keys)
{
this.WriteCodePair(XDataCode.AppReg, appReg);
foreach (XDataRecord x in xData[appReg].XDataRecord)
{
this.WriteCodePair(x.Code, x.Value.ToString());
}
}
}
private void WriteEntityCommonCodes(IEntityObject entity)
{
this.WriteCodePair(8, entity.Layer);
this.WriteCodePair(62, entity.Color.Index);
this.WriteCodePair(6, entity.LineType);
}
private void WriteCodePair(int codigo, object valor)
{
// AutoCad12 does not allow strings with spaces
string nameConversion;
nameConversion = valor == null ? string.Empty : valor.ToString();
if (this.version == DxfVersion.AutoCad12 && valor is DxfObject) nameConversion = nameConversion.Replace(' ', '_');
this.writer.WriteLine(codigo);
this.writer.WriteLine(nameConversion);
}
#endregion
}
}