public List <Line> TangentLines2d(Point point)
{
if (!point.IsCoplanarTo(this))
{
return(null);
}
List <Line> list = new List <Line>();
Vector3d vector3d = new Vector3d(point - this.point_0);
double norm = vector3d.Norm;
if (this.double_0 - norm > Global.AbsoluteEpsilon)
{
return(list);
}
if (Global.AlmostEquals(norm, this.double_0))
{
Point point2 = this.point_0 + this.double_0 / norm * vector3d.ToPoint();
Vector3d directionVector = Vector3d.Cross(vector3d, this.NormalVector);
list.Add(new Line(point2, directionVector));
return(list);
}
double scalar = this.double_0 * this.double_0 / (norm * norm);
Point point3 = this.point_0 + scalar * vector3d.ToPoint();
Plane plane = new Plane(point3, vector3d);
Edge edge = this.method_6(plane);
list.Add(new Line(point, edge.StartPoint));
list.Add(new Line(point, edge.EndPoint));
return(list);
}
public Edge Move(Vector3d displacementVector)
{
return(new Edge
{
startPoint = this.startPoint + displacementVector.ToPoint(),
endPoint = this.endPoint + displacementVector.ToPoint()
});
}
public Arc Move(Vector3d displacementVector)
{
return(new Arc
{
point_0 = this.point_0 + displacementVector.ToPoint(),
point_1 = this.point_1 + displacementVector.ToPoint(),
vector3d_0 = this.vector3d_0.DeepCopy(),
double_0 = this.double_0
});
}
public Plane Move(Vector3d displacementVector)
{
Plane plane = this.DeepCopy();
plane.Point = this.point_0 + displacementVector.ToPoint();
return(plane);
}
private Point method_0(Line line_0)
{
Vector3d vector3d = line_0.DirectionVector.Normalize();
double scalar = Vector3d.Dot(new Vector3d(this - line_0.Point), vector3d);
return(line_0.Point + scalar * vector3d.ToPoint());
}
public Point RandomPointInCircle()
{
Vector3d vector3d = this.vector3d_0.RandomOrthonormal();
double scalar = this.double_0 * RandomGenerator.NextDouble_0_1();
return(this.point_0 + scalar * vector3d.ToPoint());
}
private Point method_1(Plane plane_0)
{
Vector3d nCF_normal = plane_0.NCF_normal;
double num = Vector3d.Dot(this.method_2(), nCF_normal);
double scalar = plane_0.NCF_d - num;
return(this + scalar * nCF_normal.ToPoint());
}
public Line Move(Vector3d displacementVector)
{
return(new Line
{
point_0 = this.point_0 + displacementVector.ToPoint(),
vector3d_0 = this.vector3d_0.DeepCopy()
});
}
public Circle Move(Vector3d displacementVector)
{
return(new Circle
{
point_0 = this.point_0 + displacementVector.ToPoint(),
double_0 = this.double_0,
vector3d_0 = new Vector3d(this.vector3d_0.X, this.vector3d_0.Y, this.vector3d_0.Z)
});
}
public Point RandomPointInEllipse()
{
double scalar = RandomGenerator.NextDouble_1_1();
double tetha = RandomGenerator.NextDouble_0_2Pi();
Point pointAtParameter = this.GetPointAtParameter(tetha);
Vector3d vector3d = scalar * new Vector3d(pointAtParameter - this.point_0);
return(this.point_0 + vector3d.ToPoint());
}
public Ellipse Move(Vector3d displacementVector)
{
return(new Ellipse
{
point_0 = this.point_0 + displacementVector.ToPoint(),
vector3d_0 = new Vector3d(this.vector3d_0.X, this.vector3d_0.Y, this.vector3d_0.Z),
vector3d_1 = new Vector3d(this.vector3d_1.X, this.vector3d_1.Y, this.vector3d_1.Z)
});
}
public Arc(Point center, Vector3d startVector, Vector3d endVector, Vector3d normalVector)
{
this.point_0 = center;
this.point_1 = center + startVector.ToPoint();
this.vector3d_0 = normalVector;
double num = Vector3d.OrientedAngle(startVector, endVector, normalVector);
this.double_0 = num;
if (!Global.AlmostEquals(startVector.Norm, endVector.Norm))
{
throw new ArgumentException("Error constructing arc: start vector length not equal end vector length.");
}
if (!startVector.IsOrthogonalTo(normalVector) && !endVector.IsOrthogonalTo(normalVector))
{
throw new ArgumentException("Error constructing arc: Normal vector not orthogonal to start and end vector.");
}
}
public double DistanceTo(Circle circle)
{
Vector3d a = Vector3d.Cross(this.vector3d_2, circle.NormalVector);
Vector3d vector3d = Vector3d.Cross(a, circle.NormalVector);
vector3d.Norm = circle.Radius;
Vector3d vector3d2 = -1.0 * vector3d;
Point point = circle.Center + vector3d.ToPoint();
Point point2 = circle.Center + vector3d2.ToPoint();
double value = point.DistanceTo(this);
double value2 = point2.DistanceTo(this);
if (Math.Sign(value) != Math.Sign(value2))
{
return(0.0);
}
return(Math.Min(Math.Abs(value), Math.Abs(value2)));
}
private Point method_9(Line line_0)
{
if (this.IsParallelTo(line_0))
{
throw new ArgumentException("Can not compute base point of perpendicular: lines are parallel.");
}
Vector3d a = this.vector3d_0.Normalize();
Vector3d vector3d = -1.0 * line_0.vector3d_0.Normalize();
Vector3d b = new Vector3d(line_0.point_0 - this.point_0);
Vector3d c = Vector3d.Cross(a, vector3d).Normalize();
double num = Vector3d.Triple(a, vector3d, c);
double num2 = Vector3d.Triple(a, b, c);
if (Math.Abs(num) <= 4.94065645841247E-324)
{
return(this.method_3(line_0));
}
double scalar = num2 / num;
return(line_0.point_0 - scalar * vector3d.ToPoint());
}
public List <Line> TangentLines2d(Circle circle)
{
if (!circle.IsCoplanarTo(this))
{
return(null);
}
List <Line> list = new List <Line>();
if (this.Contains(circle))
{
return(list);
}
if (circle.Contains(this))
{
return(list);
}
Vector3d vector3d = new Vector3d(circle.point_0 - this.point_0);
if (this.Intersects2d(circle))
{
if (Global.AlmostEquals(this.double_0, circle.double_0))
{
Vector3d b = new Vector3d(this.point_0 - circle.point_0);
Vector3d vector3d2 = Vector3d.Cross(this.NormalVector, b);
vector3d2.Norm = this.double_0;
list.Add(new Line(this.point_0, circle.point_0).Move(vector3d2));
list.Add(new Line(this.point_0, circle.point_0).Move(-1.0 * vector3d2));
return(list);
}
double scalar = this.double_0 / (this.double_0 - circle.double_0);
Point point = this.point_0 + scalar * vector3d.ToPoint();
return(this.TangentLines2d(point));
}
else
{
if (Global.AlmostEquals(this.double_0, circle.double_0))
{
Vector3d b2 = new Vector3d(this.point_0 - circle.point_0);
Vector3d vector3d3 = Vector3d.Cross(this.NormalVector, b2);
vector3d3.Norm = this.double_0;
list.Add(new Line(this.point_0, circle.point_0).Move(vector3d3));
list.Add(new Line(this.point_0, circle.point_0).Move(-1.0 * vector3d3));
double scalar2 = this.double_0 / (this.double_0 + circle.double_0);
Point point2 = this.point_0 + scalar2 * vector3d.ToPoint();
List <Line> list2 = this.TangentLines2d(point2);
foreach (Line current in list2)
{
list.Add(current);
}
return(list);
}
double scalar3 = this.double_0 / (this.double_0 - circle.double_0);
double scalar4 = this.double_0 / (this.double_0 + circle.double_0);
Point point3 = this.point_0 + scalar3 * vector3d.ToPoint();
Point point4 = this.point_0 + scalar4 * vector3d.ToPoint();
List <Line> list3 = this.TangentLines2d(point3);
List <Line> list4 = this.TangentLines2d(point4);
foreach (Line current2 in list3)
{
list.Add(current2);
}
foreach (Line current3 in list4)
{
list.Add(current3);
}
return(list);
}
}
public Point RandomPointOnCircle()
{
Vector3d vector3d = this.vector3d_0.RandomOrthonormal();
return(this.point_0 + this.double_0 * vector3d.ToPoint());
}
public List <Point> DevelopPolyline(ObjectId plineID, bool reverse, double startBGL, double endBGL)
{
Database workingDatabase = HostApplicationServices.WorkingDatabase;
PointSet pointSet = new PointSet();
using (Transaction transaction = workingDatabase.TransactionManager.StartTransaction())
{
DBObject @object = transaction.GetObject(plineID, (OpenMode)0, true);
pointSet = PointGeneration.SubdividePolyline(@object, transaction, 0.0);
}
if (reverse)
{
pointSet.Reverse();
}
PointSet pointSet2 = new PointSet();
double num = 0.0;
double num2 = 0.0;
double num3 = 0.0;
for (int i = 0; i < pointSet.Count - 1; i++)
{
double num4 = pointSet[i].DistanceTo(pointSet[i + 1]);
double num5 = pointSet[i].DistanceXY(pointSet[i + 1]);
if (startBGL >= num && startBGL < num + num4)
{
ngeometry.VectorGeometry.Vector3d vector3d = new ngeometry.VectorGeometry.Vector3d(pointSet[i + 1] - pointSet[i]);
vector3d.Norm = Math.Abs(startBGL - num);
pointSet2.Add(pointSet[i] + vector3d.ToPoint());
num3 = num2 + pointSet[i].DistanceXY(pointSet[i] + vector3d.ToPoint());
}
if (num > startBGL && num < endBGL)
{
pointSet2.Add(pointSet[i]);
}
if (endBGL > num && endBGL <= num + num4)
{
ngeometry.VectorGeometry.Vector3d vector3d2 = new ngeometry.VectorGeometry.Vector3d(pointSet[i + 1] - pointSet[i]);
vector3d2.Norm = Math.Abs(endBGL - num);
pointSet2.Add(pointSet[i] + vector3d2.ToPoint());
}
num += num4;
num2 += num5;
}
if (endBGL > num)
{
pointSet2.Add(pointSet[pointSet.Count - 1]);
}
PointSet pointSet3 = new PointSet();
double num6 = num3;
for (int j = 0; j < pointSet2.Count; j++)
{
pointSet3.Add(new Point(num6, CMD_Development.double_2 * pointSet2[j].Z, 0.0));
if (j == pointSet2.Count - 1)
{
break;
}
num6 += pointSet2[j].DistanceXY(pointSet2[j + 1]);
}
return(pointSet3.ToList());
}
public static PointSet SubdividePolyline3d(Polyline3d p3d, Transaction trans, double d)
{
PointSet result;
try
{
PointSet pointSet = new PointSet();
if (d <= 0.0)
{
//using (IEnumerator enumerator = p3d.GetEnumerator())
{
IEnumerator enumerator = p3d.GetEnumerator();
while (enumerator.MoveNext())
{
ObjectId objectId = (ObjectId)enumerator.Current;
PolylineVertex3d polylineVertex3d = (PolylineVertex3d)trans.GetObject(objectId, (OpenMode)0);
Point point = new Point(polylineVertex3d.Position.X, polylineVertex3d.Position.Y, polylineVertex3d.Position.Z);
if (pointSet.Count > 1)
{
if (pointSet[pointSet.Count - 1] != point)
{
pointSet.Add(point);
}
}
else
{
pointSet.Add(point);
}
}
goto IL_233;
}
}
List <Point> list = new List <Point>();
foreach (ObjectId objectId2 in p3d)
{
PolylineVertex3d polylineVertex3d2 = (PolylineVertex3d)trans.GetObject(objectId2, (OpenMode)0);
list.Add(new Point(polylineVertex3d2.Position.X, polylineVertex3d2.Position.Y, polylineVertex3d2.Position.Z));
}
if (p3d.Closed)
{
list.Add(list[0]);
}
for (int i = 0; i < list.Count - 1; i++)
{
Point point2 = list[i];
Point point3 = list[i + 1];
ngeometry.VectorGeometry.Vector3d vector3d = new ngeometry.VectorGeometry.Vector3d(point3 - point2);
double num = point2.DistanceTo(point3);
double num2 = (double)((int)Math.Max(Math.Ceiling(num / d), 1.0));
double norm = num / num2;
vector3d.Norm = norm;
int num3 = 0;
while ((double)num3 < num2)
{
pointSet.Add(point2 + (double)num3 * vector3d.ToPoint());
num3++;
}
}
if (!p3d.Closed)
{
pointSet.Add(list[list.Count - 1]);
}
IL_233:
result = pointSet;
}
catch (System.Exception ex)
{
Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor.WriteMessage("Can not subdivide polyline3d (handle: " + p3d.Handle.ToString() + ")\n");
result = null;
}
return(result);
}
public Point RandomPointOnLine()
{
Vector3d vector3d = RandomGenerator.NextDouble_mr_mr() * this.DirectionVector.Normalize();
return(this.point_0 + vector3d.ToPoint());
}
public Point Move(Vector3d displacementVector)
{
return(this + displacementVector.ToPoint());
}
public static PointSet SubdivideLWPolyline(Polyline lwp, double d)
{
PointSet result;
try
{
PointSet pointSet = new PointSet();
int numberOfVertices = lwp.NumberOfVertices;
if (d <= 0.0)
{
for (int i = 0; i < numberOfVertices; i++)
{
Point3d point3dAt = lwp.GetPoint3dAt(i);
Point point = new Point(point3dAt.X, point3dAt.Y, point3dAt.Z);
if (pointSet.Count > 1)
{
if (pointSet[pointSet.Count - 1] != point)
{
pointSet.Add(point);
}
}
else
{
pointSet.Add(point);
}
}
}
else
{
List <Point> list = new List <Point>();
for (int j = 0; j < numberOfVertices; j++)
{
Point3d point3dAt2 = lwp.GetPoint3dAt(j);
list.Add(new Point(point3dAt2.X, point3dAt2.Y, point3dAt2.Z));
}
if (lwp.Closed)
{
list.Add(list[0]);
}
for (int k = 0; k < list.Count - 1; k++)
{
Point point2 = list[k];
Point point3 = list[k + 1];
ngeometry.VectorGeometry.Vector3d vector3d = new ngeometry.VectorGeometry.Vector3d(point3 - point2);
double num = point2.DistanceTo(point3);
int num2 = (int)Math.Max(Math.Ceiling(num / d), 1.0);
double norm = num / (double)num2;
vector3d.Norm = norm;
for (int l = 0; l < num2; l++)
{
pointSet.Add(point2 + (double)l * vector3d.ToPoint());
}
}
if (!lwp.Closed)
{
pointSet.Add(list[list.Count - 1]);
}
}
result = pointSet;
}
catch (System.Exception ex)
{
Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor.WriteMessage("Can not subdivide polyline (handle: " + lwp.Handle.ToString() + ")\n");
result = null;
}
return(result);
}
