/// <summary>
/// Inicializa una nueva instancia de la clase <c>Punto</c>.
/// </summary>
public Punto()
: base(DxfCodigoObjeto.Punto)
{
this.ubicacion = Vector3f.Nulo;
//this.thickness = 0.0f;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
}
/// <summary>
/// Inicializa una nueva instancia de la clase <c>linea</c>.
/// </summary>
public Linea()
: base(DxfCodigoObjeto.Linea)
{
this.puntoInicio = Vector3f.Nulo;
this.puntoFin = Vector3f.Nulo;
//this.thickness = 0.0f;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
}
/// <summary>
/// Initializes a new instance of the <c>Vertex</c> class.
/// </summary>
/// <param name="location">Vertex <see cref="netDxf.Vector2f">location</see>.</param>
public Vertex(Vector2f location)
: base(DxfCodigoObjeto.Vertex)
{
this.flags = VertexTypeFlags.PolylineVertex;
this.location = new Vector3f(location.X, location.Y, 0.0f);
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.bulge = 0.0f;
this.beginThickness = 0.0f;
this.endThickness = 0.0f;
}
/// <summary>
/// Inicializa una nueva instancia de la clase <c>Circulo</c>.
/// </summary>
public Circulo()
: base(DxfCodigoObjeto.Circulo)
{
this.centro = Vector3f.Nulo;
this.radio = 1.0f;
this.inicio = Vector3f.Nulo;
//this.thickness = 0.0f;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
}
/// <summary>
/// Initializes a new instance of the <c>Polyline</c> class.
/// </summary>
/// <param name="vertexes">Polyline <see cref="LightWeightPolylineVertex">vertex</see> list in object coordinates.</param>
public LightWeightPolyline(List<LightWeightPolylineVertex> vertexes)
: base(DxfCodigoObjeto.LightWeightPolyline)
{
this.vertexes = vertexes;
this.isClosed = false;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
this.elevation = 0.0f;
this.thickness = 0.0f;
this.flags = PolylineTypeFlags.OpenPolyline;
}
/// <summary>
/// Inicializa una nueva instancia de la clase <c>Arco</c>
/// </summary>
public Arco()
: base(DxfCodigoObjeto.Arco)
{
this.centro = Vector3f.Nulo;
this.radio = 0.0f;
this.anguloInicio = 0.0f;
this.anguloFin = 0.0f;
//this.thickness = 0.0f;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
}
/// <summary>
/// Inicializa una nueva instancia de la clase <c>Elipse</c>.
/// </summary>
public Elipse()
: base(DxfCodigoObjeto.Elipse)
{
this.centro = Vector3f.Nulo;
this.ejeMayor = 1.0f;
this.ejeMenor = 0.5f;
this.anguloInicio = 0.0f;
this.anguloFin = 360.0f;
this.rotacion = 0.0f;
//this.curvePoints = 30;
//this.thickness = 0.0f;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
}
public void InvertirPuntos()
{
Vector3f ptoTemp = this.puntoInicio;
this.puntoInicio = this.puntoFin;
this.puntoFin = ptoTemp;
this.invertido = true;
}
/// <summary>
/// Initializes a new instance of the <c>Polyline</c> class.
/// </summary>
public Polilinea()
: base(DxfCodigoObjeto.Polilinea)
{
this.vertexes = new List<PolylineVertex>();
this.isClosed = false;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
this.elevation = 0.0f;
this.flags = PolylineTypeFlags.OpenPolyline;
//this.endSequence = new EndSequence();
}
/// <summary>
/// Initializes a new instance of the <c>Polyline</c> class.
/// </summary>
/// <param name="vertexes">Polyline vertex list in object coordinates.</param>
/// <param name="isClosed">Sets if the polyline is closed</param>
public Polilinea(List<PolylineVertex> vertexes, bool isClosed)
: base(DxfCodigoObjeto.Polilinea)
{
this.vertexes = vertexes;
this.isClosed = isClosed;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
this.normal = Vector3f.UnitarioZ;
this.elevation = 0.0f;
//this.thickness = 0.0f;
this.flags = isClosed ? PolylineTypeFlags.ClosedPolylineOrClosedPolygonMeshInM : PolylineTypeFlags.OpenPolyline;
//this.endSequence = new EndSequence();
}
/// <summary>
/// Initializes a new instance of the <c>Polyline3dVertex</c> class.
/// </summary>
/// <param name="location">Polyline <see cref="Vector3f">vertex</see> coordinates.</param>
public Polyline3dVertex(Vector3f location)
: base(DxfCodigoObjeto.Vertex)
{
this.flags = VertexTypeFlags.Polyline3dVertex;
this.location = location;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
}
/// <summary>
/// Obtains the dot product of two vectors.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <returns>The dot product.</returns>
public static float DotProduct(Vector3f u, Vector3f v)
{
return (u.X * v.X) + (u.Y * v.Y) + (u.Z * v.Z);
}
/// <summary>
/// Obtains the distance between two points.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <returns>Distancie.</returns>
public static float Distance(Vector3f u, Vector3f v)
{
return (float)(Math.Sqrt((u.X - v.X) * (u.X - v.X) + (u.Y - v.Y) * (u.Y - v.Y) + (u.Z - v.Z) * (u.Z - v.Z)));
}
public void InvertirPuntos()
{
//invierto los puntos
Vector3f ptoTemp = this.puntoInicio;
this.puntoInicio = this.puntoFin;
this.puntoFin = ptoTemp;
//e invierto el sentido del arco
if (this.sentido == 'A') this.sentido = 'H';
else this.sentido = 'A';
this.invertido = true;
}
/// <summary>
/// Initializes a new instance of the <c>PolylineVertex</c> class.
/// </summary>
public PolyfaceMeshVertex()
: base(DxfCodigoObjeto.Vertex)
{
this.flags = VertexTypeFlags.PolyfaceMeshVertex | VertexTypeFlags.Polygon3dMesh;
this.location = Vector3f.Nulo;
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
}
public bool Equals(Vector3f obj)
{
return obj.x == this.x && obj.y == this.y && obj.z == this.z;
}
/// </summary>
/// Check if the components of two vectors are approximate equals.
/// <param name="obj">Vector3f.</param>
/// <param name="threshold">Maximun tolerance.</param>
/// <returns>True if the three components are almost equal or false in anyother case.</returns>
public bool Equals(Vector3f obj, float threshold)
{
if (Math.Abs(obj.X - this.x) > threshold)
{
return false;
}
if (Math.Abs(obj.Y - this.y) > threshold)
{
return false;
}
if (Math.Abs(obj.Z - this.z) > threshold)
{
return false;
}
return true;
}
/// <summary>
/// Obtains the square distance between two points.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <returns>Square distance.</returns>
public static float SquareDistance(Vector3f u, Vector3f v)
{
return (u.X - v.X) * (u.X - v.X) + (u.Y - v.Y) * (u.Y - v.Y) + (u.Z - v.Z) * (u.Z - v.Z);
}
/// <summary>
/// Rounds the components of a vector.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="numDigits">Number of significative defcimal digits.</param>
/// <returns>Vector3F.</returns>
public static Vector3f Round(Vector3f u, int numDigits)
{
return new Vector3f((float)(Math.Round(u.X, numDigits)),
(float)(Math.Round(u.Y, numDigits)),
(float)(Math.Round(u.Z, numDigits)));
}
/// <summary>
/// Obtains the midpoint.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <returns>Vector3f.</returns>
public static Vector3f MidPoint(Vector3f u, Vector3f v)
{
return new Vector3f((v.X + u.X) * 0.5F, (v.Y + u.Y) * 0.5F, (v.Z + u.Z) * 0.5F);
}
/// <summary>
/// Checks if two vectors are perpendicular.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <param name="threshold">Tolerance used.</param>
/// <returns>True if are penpendicular or false in anyother case.</returns>
public static bool ArePerpendicular(Vector3f u, Vector3f v, float threshold)
{
return MathHelper.IsZero(DotProduct(u, v), threshold);
}
/// <summary>
/// Checks if two vectors are parallel.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <param name="threshold">Tolerance used.</param>
/// <returns>True if are parallel or false in anyother case.</returns>
public static bool AreParallel(Vector3f u, Vector3f v, float threshold)
{
float a = u.Y * v.Z - u.Z * v.Y;
float b = u.Z * v.X - u.X * v.Z;
float c = u.X * v.Y - u.Y * v.X;
if (!MathHelper.IsZero(a, threshold))
{
return false;
}
if (!MathHelper.IsZero(b, threshold))
{
return false;
}
if (!MathHelper.IsZero(c, threshold))
{
return false;
}
return true;
}
/// <summary>
/// Initializes a new instance of the PolylineVertex class.
/// </summary>
/// <param name="x">X coordinate.</param>
/// <param name="y">Y coordinate.</param>
/// <param name="z">Z coordinate.</param>
public PolyfaceMeshVertex(float x, float y, float z)
: base(DxfCodigoObjeto.Vertex)
{
this.flags = VertexTypeFlags.PolyfaceMeshVertex | VertexTypeFlags.Polygon3dMesh;
this.location = new Vector3f(x, y, z);
//this.layer = Layer.Default;
//this.color = AciColor.ByLayer;
//this.lineType = LineType.ByLayer;
}
/// <summary>
/// Obtains the cross product of two vectors.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <returns>Vector3f.</returns>
public static Vector3f CrossProduct(Vector3f u, Vector3f v)
{
float a = u.Y * v.Z - u.Z * v.Y;
float b = u.Z * v.X - u.X * v.Z;
float c = u.X * v.Y - u.Y * v.X;
return new Vector3f(a, b, c);
}
private Vertex ReadVertex(ref ParCodigoValor cod)
{
string handle = string.Empty;
//Layer layer = Layer.Default;
//AciColor color = AciColor.ByLayer;
//LineType lineType = LineType.ByLayer;
Vector3f location = new Vector3f();
//Dictionary<ApplicationRegistry, XData> xData = new Dictionary<ApplicationRegistry, XData>();
float endThickness = 0.0f;
float beginThickness = 0.0f;
float bulge = 0.0f;
List<int> vertexIndexes = new List<int>();
VertexTypeFlags flags = VertexTypeFlags.PolylineVertex;
cod = this.ReadCodePair();
while (cod.Cod != 0)
{
switch (cod.Cod)
{
case 5:
handle = cod.Val;
cod = this.ReadCodePair();
break;
//case 8:
// layer = this.GetLayer(cod.Val);
// code = this.ReadCodePair();
// break;
//case 62:
// color = new AciColor(short.Parse(cod.Val));
// code = this.ReadCodePair();
// break;
//case 6:
// lineType = this.GetLineType(code.Value);
// code = this.ReadCodePair();
// break;
case 10:
location.X = float.Parse(cod.Val);
cod = this.ReadCodePair();
break;
case 20:
location.Y = float.Parse(cod.Val);
cod = this.ReadCodePair();
break;
case 30:
location.Z = float.Parse(cod.Val);
cod = this.ReadCodePair();
break;
case 40:
beginThickness = float.Parse(cod.Val);
cod = this.ReadCodePair();
break;
case 41:
endThickness = float.Parse(cod.Val);
cod = this.ReadCodePair();
break;
case 42:
bulge = float.Parse(cod.Val);
cod = this.ReadCodePair();
break;
case 70:
flags = (VertexTypeFlags)int.Parse(cod.Val);
cod = this.ReadCodePair();
break;
case 71:
vertexIndexes.Add(int.Parse(cod.Val));
cod = this.ReadCodePair();
break;
case 72:
vertexIndexes.Add(int.Parse(cod.Val));
cod = this.ReadCodePair();
break;
case 73:
vertexIndexes.Add(int.Parse(cod.Val));
cod = this.ReadCodePair();
break;
case 74:
vertexIndexes.Add(int.Parse(cod.Val));
cod = this.ReadCodePair();
break;
//case 1001:
// XData xDataItem = this.ReadXDataRecord(code.Value, ref code);
// xData.Add(xDataItem.ApplicationRegistry, xDataItem);
// break;
default:
if (cod.Cod >= 1000 && cod.Cod <= 1071)
throw new DxfInvalidCodeValueEntityException(cod.Cod, cod.Val, this.archivo,
"The extended data of an entity must start with the application registry code " + this.fileLine);
cod = this.ReadCodePair();
break;
}
}
return new Vertex
{
Flags = flags,
Location = location,
BeginThickness = beginThickness,
Bulge = bulge,
//Color = color,
EndThickness = endThickness,
//Layer = layer,
//LineType = lineType,
VertexIndexes = vertexIndexes.ToArray(),
//XData = xData,
Handle = handle
};
}
/// <summary>
/// Obtains the angle between two vectors.
/// </summary>
/// <param name="u">Vector3f.</param>
/// <param name="v">Vector3f.</param>
/// <returns>Angle in radians.</returns>
public static float AngleBetween(Vector3f u, Vector3f v)
{
float cos = DotProduct(u, v) / (u.Modulus() * v.Modulus());
if (MathHelper.IsOne(cos))
{
return 0;
}
if (MathHelper.IsOne(-cos))
{
return (float)Math.PI;
}
return (float)Math.Acos(cos);
}
