/// <summary>
/// Creates a new Underlay that is a copy of the current instance.
/// </summary>
/// <returns>A new Underlay that is a copy of this instance.</returns>
public override object Clone()
{
Underlay entity = new Underlay {
//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,
//Underlay properties
Definition = (UnderlayDefinition)this.definition.Clone(),
Position = this.position,
Scale = this.scale,
Rotation = this.rotation,
Contrast = this.contrast,
Fade = this.fade,
DisplayOptions = this.displayOptions,
ClippingBoundary = this.clippingBoundary != null ? (ClippingBoundary)this.clippingBoundary.Clone() : null
};
foreach (XData data in this.XData.Values)
{
entity.XData.Add((XData)data.Clone());
}
return(entity);
}
/// <summary>
/// Creates a new Underlay that is a copy of the current instance.
/// </summary>
/// <returns>A new Underlay that is a copy of this instance.</returns>
public override object Clone()
{
Underlay entity = new Underlay
{
//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,
//Underlay properties
Definition = (UnderlayDefinition) this.definition.Clone(),
Position = this.position,
Scale = this.scale,
Rotation = this.rotation,
Contrast = this.contrast,
Fade = this.fade,
DisplayOptions = this.displayOptions,
ClippingBoundary = this.clippingBoundary != null ? (ClippingBoundary) this.clippingBoundary.Clone() : null
};
foreach (XData data in this.XData.Values)
entity.XData.Add((XData) data.Clone());
return entity;
}
private Underlay ReadUnderlay()
{
string underlayDefHandle = null;
Vector3 position = Vector3.Zero;
Vector3 scale = new Vector3(1.0);
double rotation = 0.0;
Vector3 normal = Vector3.UnitZ;
UnderlayDisplayFlags displayOptions = UnderlayDisplayFlags.ShowUnderlay;
short contrast = 100;
short fade = 0;
Vector2 clippingVertex = Vector2.Zero;
List<Vector2> clippingVertexes = new List<Vector2>();
ClippingBoundary clippingBoundary;
List<XData> xData = new List<XData>();
this.chunk.Next();
while (this.chunk.Code != 0)
{
switch (this.chunk.Code)
{
case 10:
position.X = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 20:
position.Y = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 30:
position.Z = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 41:
scale.X = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 42:
scale.Y = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 43:
scale.Z = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 50:
rotation = this.chunk.ReadDouble();
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 340:
underlayDefHandle = this.chunk.ReadHex();
this.chunk.Next();
break;
case 280:
displayOptions = (UnderlayDisplayFlags) this.chunk.ReadShort();
this.chunk.Next();
break;
case 281:
contrast = this.chunk.ReadShort();
this.chunk.Next();
break;
case 282:
fade = this.chunk.ReadShort();
this.chunk.Next();
break;
case 11:
clippingVertex = new Vector2();
clippingVertex.X = this.chunk.ReadDouble();
this.chunk.Next();
break;
case 21:
clippingVertex.Y = this.chunk.ReadDouble();
clippingVertexes.Add(clippingVertex);
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;
}
}
Vector3 wcsPosition = MathHelper.Transform(position, normal, CoordinateSystem.Object, CoordinateSystem.World);
if (clippingVertexes.Count < 2)
clippingBoundary = null;
else if (clippingVertexes.Count == 2)
clippingBoundary = new ClippingBoundary(clippingVertexes[0], clippingVertexes[1]);
else
clippingBoundary = new ClippingBoundary(clippingVertexes);
Underlay underlay = new Underlay
{
Position = wcsPosition,
Scale = scale,
Normal = normal,
Rotation = rotation,
DisplayOptions = displayOptions,
Contrast = contrast,
Fade = fade,
ClippingBoundary = clippingBoundary
};
underlay.XData.AddRange(xData);
if (string.IsNullOrEmpty(underlayDefHandle) || underlayDefHandle == "0")
return null;
this.underlayToDefinitionHandles.Add(underlay, underlayDefHandle);
return underlay;
}
private void WriteUnderlay(Underlay underlay)
{
this.chunk.Write(100, SubclassMarker.Underlay);
this.chunk.Write(340, underlay.Definition.Handle);
Vector3 ocsPosition = MathHelper.Transform(underlay.Position, underlay.Normal, CoordinateSystem.World, CoordinateSystem.Object);
this.chunk.Write(10, ocsPosition.X);
this.chunk.Write(20, ocsPosition.Y);
this.chunk.Write(30, ocsPosition.Z);
this.chunk.Write(41, underlay.Scale.X);
this.chunk.Write(42, underlay.Scale.Y);
this.chunk.Write(43, underlay.Scale.Z);
this.chunk.Write(50, underlay.Rotation);
this.chunk.Write(210, underlay.Normal.X);
this.chunk.Write(220, underlay.Normal.Y);
this.chunk.Write(230, underlay.Normal.Z);
this.chunk.Write(280, (short) underlay.DisplayOptions);
this.chunk.Write(281, underlay.Contrast);
this.chunk.Write(282, underlay.Fade);
if (underlay.ClippingBoundary != null)
{
foreach (Vector2 vertex in underlay.ClippingBoundary.Vertexes)
{
this.chunk.Write(11, vertex.X);
this.chunk.Write(21, vertex.Y);
}
}
}
private static void UnderlayEntity()
{
UnderlayDgnDefinition underlayDef1 = new UnderlayDgnDefinition("DgnUnderlay.dgn");
Underlay underlay1 = new Underlay(underlayDef1);
underlay1.Normal = new Vector3(1, 0, 0);
underlay1.Position = new Vector3(0, 1, 0);
underlay1.Scale = new Vector3(0.001);
UnderlayDwfDefinition underlayDef2 = new UnderlayDwfDefinition("DwfUnderlay.dwf");
Underlay underlay2 = new Underlay(underlayDef2);
underlay2.Rotation = 45;
underlay2.Scale = new Vector3(0.01);
UnderlayPdfDefinition underlayDef3 = new UnderlayPdfDefinition("PdfUnderlay.pdf");
underlayDef3.Page = "3";
Underlay underlay3 = new Underlay(underlayDef3);
DxfDocument doc = new DxfDocument(DxfVersion.AutoCad2013);
doc.AddEntity(underlay1);
doc.AddEntity(underlay2);
doc.AddEntity(underlay3);
doc.Save("UnderlayEntity.dxf");
DxfDocument load = DxfDocument.Load("UnderlayEntity.dxf");
load.Save("UnderlayEntity2.dxf");
}