/// <summary>
/// Creates a new Leader that is a copy of the current instance.
/// </summary>
/// <returns>A new Leader that is a copy of this instance.</returns>
public override object Clone()
{
Leader entity = new Leader(this.vertexes)
{
//EntityObject properties
Layer = (Layer)this.Layer.Clone(),
Linetype = (Linetype)this.Linetype.Clone(),
Color = (AciColor)this.Color.Clone(),
Lineweight = this.Lineweight,
Transparency = (Transparency)this.Transparency.Clone(),
LinetypeScale = this.LinetypeScale,
Normal = this.Normal,
IsVisible = this.IsVisible,
//Leader properties
Elevation = this.elevation,
Style = (DimensionStyle)this.style.Clone(),
ShowArrowhead = this.showArrowhead,
PathType = this.pathType,
Offset = this.offset,
LineColor = this.lineColor,
Annotation = (EntityObject)this.annotation.Clone(),
hasHookLine = this.hasHookLine
};
foreach (XData data in this.XData.Values)
{
entity.XData.Add((XData)data.Clone());
}
//entity.Update();
return(entity);
}
/// <summary>
/// Creates a new Leader that is a copy of the current instance.
/// </summary>
/// <returns>A new Leader that is a copy of this instance.</returns>
public override object Clone()
{
Leader entity = new Leader(this.vertexes)
{
//EntityObject properties
Layer = (Layer)this.Layer.Clone(),
Linetype = (Linetype)this.Linetype.Clone(),
Color = (AciColor)this.Color.Clone(),
Lineweight = this.Lineweight,
Transparency = (Transparency)this.Transparency.Clone(),
LinetypeScale = this.LinetypeScale,
Normal = this.Normal,
IsVisible = this.IsVisible,
//Leader properties
Elevation = this.elevation,
Style = (DimensionStyle)this.style.Clone(),
ShowArrowhead = this.showArrowhead,
PathType = this.pathType,
Offset = this.offset,
LineColor = this.lineColor,
Annotation = (EntityObject)this.annotation?.Clone(),
hasHookline = this.hasHookline // do not call directly the property, the vertexes list already includes it if it has a hook line
};
foreach (DimensionStyleOverride styleOverride in this.StyleOverrides.Values)
{
object copy;
ICloneable value = styleOverride.Value as ICloneable;
copy = value != null?value.Clone() : styleOverride.Value;
entity.StyleOverrides.Add(new DimensionStyleOverride(styleOverride.Type, copy));
}
foreach (XData data in this.XData.Values)
{
entity.XData.Add((XData)data.Clone());
}
return(entity);
}
private void AddLeaderTextPositionXData(Leader leader)
{
MText mText = leader.Annotation as MText;
if (mText != null)
{
XData xdataEntry;
if (leader.XData.ContainsAppId(ApplicationRegistry.DefaultName))
{
xdataEntry = leader.XData[ApplicationRegistry.DefaultName];
xdataEntry.XDataRecord.Clear();
}
else
{
xdataEntry = new XData(new ApplicationRegistry(ApplicationRegistry.DefaultName));
leader.XData.Add(xdataEntry);
}
xdataEntry.XDataRecord.Add(new XDataRecord(XDataCode.String, "DSTYLE"));
xdataEntry.XDataRecord.Add(new XDataRecord(XDataCode.ControlString, "{"));
xdataEntry.XDataRecord.Add(new XDataRecord(XDataCode.Int16, (short)70));
xdataEntry.XDataRecord.Add(new XDataRecord(XDataCode.Int16, (short)mText.AttachmentPoint));
xdataEntry.XDataRecord.Add(new XDataRecord(XDataCode.Int16, (short)77));
xdataEntry.XDataRecord.Add(new XDataRecord(XDataCode.Int16, (short)leader.TextVerticalPosition));
xdataEntry.XDataRecord.Add(new XDataRecord(XDataCode.ControlString, "}"));
}
}
private void WriteLeader(Leader leader)
{
this.chunk.Write(100, SubclassMarker.Leader);
this.chunk.Write(3, leader.Style.Name);
if(leader.ShowArrowhead)
this.chunk.Write(71, (short)1);
else
this.chunk.Write(71, (short)0);
this.chunk.Write(72, (short)leader.PathType);
if (leader.Annotation != null)
{
switch (leader.Annotation.Type)
{
case EntityType.MText:
this.chunk.Write(73, (short) 0);
break;
case EntityType.Insert:
this.chunk.Write(73, (short) 2);
break;
default:
this.chunk.Write(73, (short) 3);
break;
}
}
else
{
this.chunk.Write(73, (short)3);
}
Vector2 v = leader.Vertexes[leader.Vertexes.Count - 1] - leader.Vertexes[leader.Vertexes.Count - 2];
if (v.Equals(Vector2.Zero)) throw new Exception(string.Format("The last and previous vertex of the leader with handle {0} cannot be the same", leader.Handle));
int side = v.X < 0 ? -1 : 1;
if (side < 0)
this.chunk.Write(74, (short)1);
else
this.chunk.Write(74, (short)0);
if (leader.HasHookline)
this.chunk.Write(75, (short)1);
else
this.chunk.Write(75, (short)0);
//this.chunk.Write(40, 0.0);
//this.chunk.Write(41, 0.0);
// in the dxf the leader vertexes list is in WCS
Vector2 dir = side * Vector2.UnitX;
List<Vector3> ocsVertexes = new List<Vector3>();
if (leader.HasHookline)
{
Vector2 hook = leader.Vertexes[leader.Vertexes.Count - 1];
MText text = leader.Annotation as MText;
if (text != null)
{
double rotation = text.Rotation*MathHelper.DegToRad;
double sin = Math.Sin(rotation);
double cos = Math.Cos(rotation);
dir = new Vector2(cos, sin);
Vector2 position = hook + new Vector2(side * leader.Style.DIMGAP * leader.Style.DIMSCALE, leader.Style.DIMGAP * leader.Style.DIMSCALE);
Vector2 a = hook - position;
a = MathHelper.Transform(a, rotation, CoordinateSystem.Object, CoordinateSystem.World);
hook = a + position;
}
Vector2 vertex = hook + dir * leader.Style.DIMASZ * leader.Style.DIMSCALE;
for (int i = 0; i < leader.Vertexes.Count - 1; i++)
ocsVertexes.Add(new Vector3(leader.Vertexes[i].X, leader.Vertexes[i].Y, leader.Elevation));
ocsVertexes.Add(new Vector3(vertex.X, vertex.Y, leader.Elevation));
ocsVertexes.Add(new Vector3(hook.X, hook.Y, leader.Elevation));
}
else
{
for (int i = 0; i < leader.Vertexes.Count; i++)
ocsVertexes.Add(new Vector3(leader.Vertexes[i].X, leader.Vertexes[i].Y, leader.Elevation));
}
IList<Vector3> wcsVertexes = MathHelper.Transform(ocsVertexes, leader.Normal, CoordinateSystem.Object, CoordinateSystem.World);
this.chunk.Write(76, (short)wcsVertexes.Count);
foreach (Vector3 vertex in wcsVertexes)
{
this.chunk.Write(10, vertex.X);
this.chunk.Write(20, vertex.Y);
this.chunk.Write(30, vertex.Z);
}
this.chunk.Write(77, leader.LineColor.Index);
if (leader.Annotation != null) this.chunk.Write(340, leader.Annotation.Handle);
this.chunk.Write(210, leader.Normal.X);
this.chunk.Write(220, leader.Normal.Y);
this.chunk.Write(230, leader.Normal.Z);
Vector3 xDir = MathHelper.Transform(new Vector3(dir.X, dir.Y, 0.0), leader.Normal, CoordinateSystem.Object, CoordinateSystem.World);
xDir.Normalize();
this.chunk.Write(211, xDir.X);
this.chunk.Write(221, xDir.Y);
this.chunk.Write(231, xDir.Z);
Vector3 wcsOffset = MathHelper.Transform(new Vector3(leader.Offset.X, leader.Offset.Y, leader.Elevation), leader.Normal, CoordinateSystem.Object, CoordinateSystem.World);
this.chunk.Write(213, wcsOffset.X);
this.chunk.Write(223, wcsOffset.Y);
this.chunk.Write(233, wcsOffset.Z);
// leader text vertical position info
this.AddLeaderTextPositionXData(leader);
this.WriteXData(leader.XData);
}
private void Leader_DimStyleOverrideRemoved(Leader sender, DimensionStyleOverrideChangeEventArgs e)
{
switch (e.Item.Type)
{
case DimensionStyleOverrideType.DimLineLinetype:
case DimensionStyleOverrideType.ExtLine1Linetype:
case DimensionStyleOverrideType.ExtLine2Linetype:
Linetype linetype = (Linetype) e.Item.Value;
this.linetypes.References[linetype.Name].Remove(sender);
break;
case DimensionStyleOverrideType.LeaderArrow:
case DimensionStyleOverrideType.DimArrow1:
case DimensionStyleOverrideType.DimArrow2:
Block block = (Block) e.Item.Value;
if (block == null)
return; // the block might be defined as null to indicate that the default arrowhead will be used
this.blocks.References[block.Name].Remove(sender);
break;
case DimensionStyleOverrideType.TextStyle:
TextStyle style = (TextStyle) e.Item.Value;
this.textStyles.References[style.Name].Remove(sender);
break;
}
}
private void Leader_DimStyleChanged(Leader sender, TableObjectChangedEventArgs<DimensionStyle> e)
{
this.dimStyles.References[e.OldValue.Name].Remove(sender);
e.NewValue = this.dimStyles.Add(e.NewValue);
this.dimStyles.References[e.NewValue.Name].Add(sender);
}
private Leader ReadLeader()
{
DimensionStyle style = DimensionStyle.Default;
bool showArrowhead = true;
LeaderPathType path = LeaderPathType.StraightLineSegements;
bool hasHookline = false;
List<Vector3> wcsVertexes = null;
AciColor lineColor = AciColor.ByLayer;
string annotation = string.Empty;
Vector3 normal = Vector3.UnitZ;
double elevation = 0.0;
Vector3 offset = Vector3.Zero;
List<XData> xData = new List<XData>();
while (this.chunk.Code != 0)
{
switch (this.chunk.Code)
{
case 3:
string styleName = this.DecodeEncodedNonAsciiCharacters(this.chunk.ReadString());
if (string.IsNullOrEmpty(styleName))
styleName = this.doc.DrawingVariables.DimStyle;
style = this.GetDimensionStyle(styleName);
this.chunk.Next();
break;
case 71:
showArrowhead = this.chunk.ReadShort() != 0;
this.chunk.Next();
break;
case 72:
path = (LeaderPathType) this.chunk.ReadShort();
this.chunk.Next();
break;
case 73:
this.chunk.Next();
break;
case 74:
this.chunk.Next();
break;
case 75:
hasHookline = this.chunk.ReadShort() != 0;
this.chunk.Next();
break;
case 76:
this.chunk.Next();
break;
case 77:
lineColor = AciColor.FromCadIndex(this.chunk.ReadShort());
this.chunk.Next();
break;
case 10:
wcsVertexes = this.ReadLeaderVertexes();
break;
case 340:
annotation = this.chunk.ReadHex();
this.chunk.Next();
break;
case 210:
normal.X = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 220:
normal.Y = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 230:
normal.Z = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 213:
offset.X = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 223:
offset.Y = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 233:
offset.Z = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 1001:
string appId = this.DecodeEncodedNonAsciiCharacters(this.chunk.ReadString());
XData data = this.ReadXDataRecord(this.GetApplicationRegistry(appId));
xData.Add(data);
break;
default:
if (this.chunk.Code >= 1000 && this.chunk.Code <= 1071)
throw new Exception("The extended data of an entity must start with the application registry code.");
this.chunk.Next();
break;
}
}
if (wcsVertexes == null)
return null;
if (hasHookline && wcsVertexes.Count >= 3)
{
wcsVertexes.RemoveAt(wcsVertexes.Count - 2);
}
IList<Vector3> ocsVertexes = MathHelper.Transform(wcsVertexes, normal, CoordinateSystem.World, CoordinateSystem.Object);
List<Vector2> vertexes = new List<Vector2>();
foreach (Vector3 v in ocsVertexes)
{
vertexes.Add(new Vector2(v.X, v.Y));
elevation = v.Z;
}
// The text vertical position is stored in the Leader extended data
Vector3 ocsOffset = MathHelper.Transform(offset, normal, CoordinateSystem.World, CoordinateSystem.Object);
Leader leader = new Leader(vertexes)
{
Style = style,
ShowArrowhead = showArrowhead,
PathType = path,
LineColor = lineColor,
Elevation = elevation,
Normal = normal,
Offset = new Vector2(ocsOffset.X, ocsOffset.Y),
TextVerticalPosition = LeaderTextVerticalPosition.Above
};
leader.XData.AddRange(xData);
// this is for post-processing, the annotation entity might appear after the leader
this.leaderAnnotation.Add(leader, annotation);
return leader;
}
private static void LeaderEntity()
{
// a basic text annotation
List<Vector2> vertexes1 = new List<Vector2>();
vertexes1.Add(new Vector2(0, 0));
vertexes1.Add(new Vector2(-5, 5));
Leader leader1 = new Leader("Sample annotation", vertexes1);
leader1.Offset = new Vector2(0, -0.5);
// We need to call manually the method Update if the annotation position is modified,
// or the Leader properties like Style, Normal, Elevation, Annotation, TextVerticalPosition, and/or Offset.
leader1.Update();
// leader not in the XY plane
Leader cloned = (Leader) leader1.Clone();
cloned.Normal = new Vector3(1);
cloned.Elevation = 5;
// a text annotation with style
DimensionStyle style = new DimensionStyle("MyStyle");
style.DIMCLRD = AciColor.Green;
style.DIMCLRT = AciColor.Blue;
style.DIMLDRBLK = DimensionArrowhead.DotBlank;
style.DIMSCALE = 2.0;
List<Vector2> vertexes2 = new List<Vector2>();
vertexes2.Add(new Vector2(0, 0));
vertexes2.Add(new Vector2(5, 5));
Leader leader2 = new Leader("Sample annotation", vertexes2, style);
((MText) leader2.Annotation).AttachmentPoint = MTextAttachmentPoint.MiddleLeft;
leader2.TextVerticalPosition = LeaderTextVerticalPosition.Centered;
leader2.Update();
// a tolerance annotation,
// its hook point will always appear at the left since I have no way of measuring the real length of a tolerance,
// and it has no alignment options as the MText does.
List<Vector2> vertexes3 = new List<Vector2>();
vertexes3.Add(new Vector2(0));
vertexes3.Add(new Vector2(5, -5));
vertexes3.Add(new Vector2(7.5, -5));
ToleranceEntry entry = new ToleranceEntry
{
GeometricSymbol = ToleranceGeometricSymbol.Symmetry,
Tolerance1 = new ToleranceValue(true, "12.5", ToleranceMaterialCondition.Maximum)
};
Leader leader3 = new Leader(entry, vertexes3);
// a block annotation
Block block = new Block("BlockAnnotation");
block.Entities.Add(new Line(new Vector2(-1, -1), new Vector2(1, 1)));
block.Entities.Add(new Line(new Vector2(-1, 1), new Vector2(1, -1)));
block.Entities.Add(new Circle(Vector2.Zero, 0.5));
List<Vector2> vertexes4 = new List<Vector2>();
vertexes4.Add(new Vector2(0));
vertexes4.Add(new Vector2(-5, -5));
vertexes4.Add(new Vector2(-7.5, -5));
Leader leader4 = new Leader(block, vertexes4);
// change the leader offset to move the leader hook (the last vertex of the leader vertexes list) in relation to the annotation position.
leader4.Offset = new Vector2(1, 1);
leader4.Update();
// add entities to the document
DxfDocument doc = new DxfDocument();
doc.AddEntity(cloned);
doc.AddEntity(leader1);
doc.AddEntity(leader2);
doc.AddEntity(leader3);
doc.AddEntity(leader4);
doc.Save("Leader.dxf");
DxfDocument test = DxfDocument.Load("Leader.dxf");
test.Save("test.dxf");
}
private Leader ReadLeader()
{
DimensionStyle style = DimensionStyle.Default;
bool showArrowhead = true;
LeaderPathType path = LeaderPathType.StraightLineSegements;
bool hasHookline = false;
List<Vector3> wcsVertexes = null;
AciColor lineColor = AciColor.ByLayer;
string annotation = string.Empty;
Vector3 normal = Vector3.UnitZ;
double elevation = 0.0;
Vector3 offset = Vector3.Zero;
List<XData> xData = new List<XData>();
while (this.chunk.Code != 0)
{
switch (this.chunk.Code)
{
case 3:
string styleName = this.DecodeEncodedNonAsciiCharacters(this.chunk.ReadString());
if (string.IsNullOrEmpty(styleName))
styleName = this.doc.DrawingVariables.DimStyle;
style = this.GetDimensionStyle(styleName);
this.chunk.Next();
break;
case 71:
showArrowhead = this.chunk.ReadShort() != 0;
this.chunk.Next();
break;
case 72:
path = (LeaderPathType) this.chunk.ReadShort();
this.chunk.Next();
break;
case 73:
this.chunk.Next();
break;
case 74:
this.chunk.Next();
break;
case 75:
hasHookline = this.chunk.ReadShort() != 0;
this.chunk.Next();
break;
case 76:
this.chunk.Next();
break;
case 77:
lineColor = AciColor.FromCadIndex(this.chunk.ReadShort());
this.chunk.Next();
break;
case 10:
wcsVertexes = this.ReadLeaderVertexes();
break;
case 340:
annotation = this.chunk.ReadString();
this.chunk.Next();
break;
case 210:
normal.X = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 220:
normal.Y = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 230:
normal.Z = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 213:
offset.X = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 223:
offset.Y = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 233:
offset.Z = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 1001:
string appId = this.DecodeEncodedNonAsciiCharacters(this.chunk.ReadString());
XData data = this.ReadXDataRecord(appId);
xData.Add(data);
break;
default:
if (this.chunk.Code >= 1000 && this.chunk.Code <= 1071)
throw new DxfInvalidCodeValueEntityException(this.chunk.Code, this.chunk.ReadString(),
"The extended data of an entity must start with the application registry code.");
this.chunk.Next();
break;
}
}
if (hasHookline) wcsVertexes.RemoveAt(wcsVertexes.Count - 2);
IList<Vector3> ocsVertexes = MathHelper.Transform(wcsVertexes, normal, CoordinateSystem.World, CoordinateSystem.Object);
List<Vector2> vertexes = new List<Vector2>();
foreach (Vector3 v in ocsVertexes)
{
vertexes.Add(new Vector2(v.X, v.Y));
elevation = v.Z;
}
// The text vertical position is stored in the Leader extended data
Vector3 ocsOffset = MathHelper.Transform(offset, normal, CoordinateSystem.World, CoordinateSystem.Object);
Leader leader = new Leader(vertexes)
{
Style = style,
ShowArrowhead = showArrowhead,
PathType = path,
LineColor = lineColor,
Elevation = elevation,
Normal = normal,
Offset = new Vector2(ocsOffset.X, ocsOffset.Y)
};
leader.XData.AddRange(xData);
// this is for post-processing, the annotation entity might appear after the leader
this.leaderAnnotation.Add(leader, annotation);
LeaderTextVerticalPosition txtPosition = LeaderTextVerticalPosition.Above;
XData txtPosData;
if (leader.XData.TryGetValue(ApplicationRegistry.Default.Name, out txtPosData))
{
bool dstyleInfo = false;
List<XDataRecord>.Enumerator entries = txtPosData.XDataRecord.GetEnumerator();
while (entries.MoveNext())
{
XDataRecord data = entries.Current;
// in this XDataRecord is where the leader text vertical position is stored
if (data.Code == XDataCode.String)
{
if (string.Equals((string)data.Value, "DSTYLE", StringComparison.OrdinalIgnoreCase)) dstyleInfo = true;
}
if (data.Code == XDataCode.Int16)
{
// the leader text vertical position is stored in value 77
if ((short)data.Value == 77 && dstyleInfo)
{
if (entries.MoveNext())
data = entries.Current;
else // unexpected end of the DSTYLE information
break;
txtPosition = (LeaderTextVerticalPosition)(short)data.Value;
break;
}
}
}
}
leader.TextVerticalPosition = txtPosition;
return leader;
}
/// <summary>
/// Creates a new Leader that is a copy of the current instance.
/// </summary>
/// <returns>A new Leader that is a copy of this instance.</returns>
public override object Clone()
{
Leader entity = new Leader(this.vertexes)
{
//EntityObject properties
Layer = (Layer)this.layer.Clone(),
LineType = (LineType)this.lineType.Clone(),
Color = (AciColor)this.color.Clone(),
Lineweight = (Lineweight)this.lineweight.Clone(),
Transparency = (Transparency)this.transparency.Clone(),
LineTypeScale = this.lineTypeScale,
Normal = this.normal,
//Leader properties
Elevation = this.elevation,
Style = (DimensionStyle) this.style.Clone(),
ShowArrowhead = this.showArrowhead,
PathType = this.pathType,
hasHookline = this.hasHookline,
Offset = this.offset,
LineColor = this.lineColor,
Annotation = (EntityObject) this.annotation.Clone()
};
foreach (XData data in this.xData.Values)
entity.XData.Add((XData)data.Clone());
entity.Update();
return entity;
}
