/// <summary>
/// Moves, scales, and/or rotates the current entity given a 3x3 transformation matrix and a translation vector.
/// </summary>
/// <param name="transformation">Transformation matrix.</param>
/// <param name="translation">Translation vector.</param>
/// <remarks>Matrix3 adopts the convention of using column vectors to represent a transformation matrix.</remarks>
public override void TransformBy(Matrix3 transformation, Vector3 translation)
{
double newElevation = this.Elevation;
Vector3 newNormal = transformation * this.Normal;
if (Vector3.Equals(Vector3.Zero, newNormal))
{
newNormal = this.Normal;
}
Matrix3 transOW = MathHelper.ArbitraryAxis(this.Normal);
Matrix3 transWO = MathHelper.ArbitraryAxis(newNormal).Transpose();
List <Vector2> vertexes = new List <Vector2>();
foreach (Vector2 vertex in this.ClippingBoundary.Vertexes)
{
Vector3 v = transOW * new Vector3(vertex.X, vertex.Y, this.Elevation);
v = transformation * v + translation;
v = transWO * v;
vertexes.Add(new Vector2(v.X, v.Y));
newElevation = v.Z;
}
ClippingBoundary newClipping = this.ClippingBoundary.Type == ClippingBoundaryType.Rectangular
? new ClippingBoundary(vertexes[0], vertexes[1])
: new ClippingBoundary(vertexes);
this.Normal = newNormal;
this.Elevation = newElevation;
this.ClippingBoundary = newClipping;
}
/// <summary>
/// Moves, scales, and/or rotates the current entity given a 3x3 transformation matrix and a translation vector.
/// </summary>
/// <param name="transformation">Transformation matrix.</param>
/// <param name="translation">Translation vector.</param>
public override void TransformBy(Matrix3 transformation, Vector3 translation)
{
Vector3 newNormal;
double newElevation = Elevation;
newNormal = transformation * Normal;
Matrix3 transOW = MathHelper.ArbitraryAxis(Normal);
Matrix3 transWO = MathHelper.ArbitraryAxis(newNormal).Transpose();
List <Vector2> vertexes = new List <Vector2>();
foreach (Vector2 vertex in ClippingBoundary.Vertexes)
{
Vector3 v = transOW * new Vector3(vertex.X, vertex.Y, Elevation);
v = transformation * v + translation;
v = transWO * v;
vertexes.Add(new Vector2(v.X, v.Y));
newElevation = v.Z;
}
ClippingBoundary newClipping = ClippingBoundary.Type == ClippingBoundaryType.Rectangular
? new ClippingBoundary(vertexes[0], vertexes[1])
: new ClippingBoundary(vertexes);
Normal = newNormal;
Elevation = newElevation;
ClippingBoundary = newClipping;
}
public Underlay(UnderlayDefinition definition)
: base(EntityType.Underlay, DxfObjectCode.Underlay)
{
if (definition == null)
{
throw new ArgumentNullException(nameof(definition));
}
this.definition = definition;
this.position = Vector3.Zero;
this.scale = new Vector3(1.0);
this.rotation = 0.0;
this.contrast = 100;
this.fade = 0;
this.displayOptions = UnderlayDisplayFlags.ShowUnderlay;
this.clippingBoundary = null;
switch (this.definition.Type)
{
case UnderlayType.DGN:
this.CodeName = DxfObjectCode.UnderlayDgn;
break;
case UnderlayType.DWF:
this.CodeName = DxfObjectCode.UnderlayDwf;
break;
case UnderlayType.PDF:
this.CodeName = DxfObjectCode.UnderlayPdf;
break;
}
}
/// <summary>
/// Initializes a new instance of the <c>Image</c> class.
/// </summary>
/// <param name="imageDefinition">Image definition.</param>
/// <param name="position">Image <see cref="Vector3">position</see> in world coordinates.</param>
/// <param name="width">Image width in world coordinates.</param>
/// <param name="height">Image height in world coordinates.</param>
public Image(ImageDefinition imageDefinition, Vector3 position, double width, double height)
: base(EntityType.Image, DxfObjectCode.Image)
{
if (imageDefinition == null)
{
throw new ArgumentNullException("imageDefinition");
}
this.imageDefinition = imageDefinition;
this.position = position;
if (width <= 0)
{
throw new ArgumentOutOfRangeException("width", width, "The Image width must be greater than zero.");
}
this.width = width;
if (height <= 0)
{
throw new ArgumentOutOfRangeException("height", height, "The Image height must be greater than zero.");
}
this.height = height;
this.rotation = 0;
this.clipping = false;
this.brightness = 50;
this.contrast = 50;
this.fade = 0;
this.displayOptions = ImageDisplayFlags.ShowImage | ImageDisplayFlags.ShowImageWhenNotAlignedWithScreen | ImageDisplayFlags.UseClippingBoundary;
this.clippingBoundary = new ClippingBoundary(0, 0, imageDefinition.Width, imageDefinition.Height);
}
/// <summary>
/// Initializes a new instance of the <c>Underlay</c> class.
/// </summary>
/// <param name="definition"><see cref="UnderlayDefinition">Underlay definition</see>.</param>
/// <param name="position">Underlay <see cref="Vector3">position</see> in world coordinates.</param>
/// <param name="scale">Underlay scale.</param>
public Underlay(UnderlayDefinition definition, Vector3 position, double scale)
: base(EntityType.Underlay, DxfObjectCode.Underlay)
{
if (definition == null)
{
throw new ArgumentNullException(nameof(definition));
}
this.definition = definition;
this.position = position;
if (scale <= 0)
{
throw new ArgumentOutOfRangeException(nameof(scale), scale, "The Underlay scale must be greater than zero.");
}
this.scale = new Vector2(scale);
this.rotation = 0.0;
this.contrast = 100;
this.fade = 0;
this.displayOptions = UnderlayDisplayFlags.ShowUnderlay;
this.clippingBoundary = null;
switch (this.definition.Type)
{
case UnderlayType.DGN:
this.CodeName = DxfObjectCode.UnderlayDgn;
break;
case UnderlayType.DWF:
this.CodeName = DxfObjectCode.UnderlayDwf;
break;
case UnderlayType.PDF:
this.CodeName = DxfObjectCode.UnderlayPdf;
break;
}
}
/// <summary>
/// Initializes a new instance of the <c>Wipeout</c> class.
/// </summary>
/// <param name="clippingBoundary">The wipeout clipping boundary.</param>
public Wipeout(ClippingBoundary clippingBoundary)
: base(EntityType.Wipeout, DxfObjectCode.Wipeout)
{
if (clippingBoundary == null)
{
throw new ArgumentNullException(nameof(clippingBoundary));
}
this.clippingBoundary = clippingBoundary;
this.elevation = 0.0;
}
/// <summary>
/// Initializes a new instance of the <c>Image</c> class.
/// </summary>
/// <param name="imageDefinition">Image definition.</param>
/// <param name="position">Image <see cref="Vector3">position</see> in world coordinates.</param>
/// <param name="width">Image width in world coordinates.</param>
/// <param name="height">Image height in world coordinates.</param>
public Image(ImageDefinition imageDefinition, Vector3 position, double width, double height)
: base(EntityType.Image, DxfObjectCode.Image)
{
this.imageDefinition = imageDefinition;
this.position = position;
this.width = width;
this.height = height;
this.rotation = 0;
this.clipping = false;
this.brightness = 50;
this.contrast = 50;
this.fade = 0;
this.displayOptions = ImageDisplayFlags.ShowImage | ImageDisplayFlags.ShowImageWhenNotAlignedWithScreen | ImageDisplayFlags.UseClippingBoundary;
this.clippingBoundary = new ClippingBoundary(-0.5, -0.5, imageDefinition.Width, imageDefinition.Height);
}
/// <summary>
/// Initializes a new instance of the <c>Underlay</c> class.
/// </summary>
/// <param name="definition">Underlay definition.</param>
public Underlay(UnderlayDefinition definition)
: base(EntityType.Underlay, DxfObjectCode.Underlay)
{
this.definition = definition;
this.position = Vector3.Zero;
this.scale = new Vector3(1.0);
this.rotation = 0.0;
this.contrast = 100;
this.fade = 0;
this.displayOptions = UnderlayDisplayFlags.ShowUnderlay;
this.clippingBoundary = null;
switch (this.definition.Type)
{
case UnderlayType.DGN:
this.CodeName = DxfObjectCode.UnderlayDgn;
break;
case UnderlayType.DWF:
this.CodeName = DxfObjectCode.UnderlayDwf;
break;
case UnderlayType.PDF:
this.CodeName = DxfObjectCode.UnderlayPdf;
break;
}
}
/// <summary>
/// Creates a new Wipeout that is a copy of the current instance.
/// </summary>
/// <returns>A new Wipeout that is a copy of this instance.</returns>
public override object Clone()
{
Wipeout entity = new Wipeout((ClippingBoundary)ClippingBoundary.Clone())
{
//EntityObject properties
Layer = (Layer)Layer.Clone(),
Linetype = (Linetype)Linetype.Clone(),
Color = (AciColor)Color.Clone(),
Lineweight = Lineweight,
Transparency = (Transparency)Transparency.Clone(),
LinetypeScale = LinetypeScale,
Normal = Normal,
IsVisible = IsVisible,
//Wipeout properties
Elevation = elevation
};
foreach (XData data in XData.Values)
{
entity.XData.Add((XData)data.Clone());
}
return(entity);
}
/// <summary>
/// Initializes a new instance of the <c>Wipeout</c> class.
/// </summary>
/// <param name="clippingBoundary">The wipeout clipping boundary.</param>
public Wipeout(ClippingBoundary clippingBoundary)
: base(EntityType.Wipeout, DxfObjectCode.Wipeout)
{
this.clippingBoundary = clippingBoundary;
this.elevation = 0.0;
}
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;
}
/// <summary>
/// Initializes a new instance of the <c>Wipeout</c> class.
/// </summary>
/// <param name="clippingBoundary">The wipeout clipping boundary.</param>
public Wipeout(ClippingBoundary clippingBoundary)
: base(EntityType.Wipeout, DxfObjectCode.Wipeout)
{
this.clippingBoundary = clippingBoundary;
this.elevation = 0.0;
}
/// <summary>
/// Initializes a new instance of the <c>Image</c> class.
/// </summary>
/// <param name="imageDefinition">Image definition.</param>
/// <param name="position">Image <see cref="Vector3">position</see> in world coordinates.</param>
/// <param name="width">Image width in world coordinates.</param>
/// <param name="height">Image height in world coordinates.</param>
public Image(ImageDefinition imageDefinition, Vector3 position, double width, double height)
: base(EntityType.Image, DxfObjectCode.Image)
{
this.imageDefinition = imageDefinition;
this.position = position;
this.width = width;
this.height = height;
this.rotation = 0;
this.clipping = false;
this.brightness = 50;
this.contrast = 50;
this.fade = 0;
this.displayOptions = ImageDisplayFlags.ShowImage | ImageDisplayFlags.ShowImageWhenNotAlignedWithScreen | ImageDisplayFlags.UseClippingBoundary;
this.clippingBoundary = new ClippingBoundary(-0.5, -0.5, imageDefinition.Width, imageDefinition.Height);
}
