/// <summary>
/// 폴리라인의 중심점 구하기
/// </summary>
/// <param name="acPolyline"></param>
/// <returns></returns>
public static Point3d GetCenterP(Polyline acPolyline)
{
#region 폴리라인 내부 점 받기
// 폴리라인 내부에 n간격으로 점을 찍음
var min_P = acPolyline.Bounds.Value.MinPoint;
var max_P = acPolyline.Bounds.Value.MaxPoint;
//CAD.CreateCircle(min_P, 50);
//CAD.CreateCircle(max_P, 50);
int n = 20; // 정밀도
double dis_X = (max_P.X - min_P.X) / n;
double dis_Y = (max_P.Y - min_P.Y) / n;
var Points = new List <Point3d>();
for (int i = 0; i < n + 1; i++)
{
for (int j = 0; j < n + 1; j++)
{
var p = PointUtil.Move(min_P, dis_X * j, dis_Y * i);
if (IsInsidePolyline(acPolyline, p, false))
{
//CAD.CreateCircle(p, 20);
Points.Add(p);
}
}
}
#endregion
#region 무게중심
// 폴리라인 내부의 점들끼리의 거리의 합이 가장 큰 점이 가장 가운데에 위치해 있다
double value = double.MaxValue;
Point3d cp = new Point3d();
Points.ForEach(p1 =>
{
double val = 0;
Points.ForEach(p2 =>
{
if (!p1.IsEqualTo(p2))
{
val += p1.DistanceTo(p2) * p1.DistanceTo(p2);
}
});
if (value > val)
{
value = val;
cp = p1;
}
});
return(cp);
#endregion
}
public static List <ObjectId> Create(List <Point3d> points, double H, bool updown, ObjectId DimStyleId, ObjectId LayerId)
{
List <ObjectId> Return = new List <ObjectId>();
using (Transaction T = AC.DB.TransactionManager.StartTransaction())
{
var BT = T.GetObject(AC.DB.BlockTableId, OpenMode.ForRead) as BlockTable;
var BTR = T.GetObject(BT[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
for (int i = 0; i < points.Count - 1; i++)
{
try
{
var L = new LineSegment3d(points[i], points[i + 1]);
var V = L.Direction;
var cross_V = V.CrossProduct(Vector3d.ZAxis);
var MP = Utils.PointUtil.GetCenterP(L); // Middle point
#region 폴리라인 내부에 입력되어야하는 경우
// updown이 true일 경우 폴리라인 외부, false인 경우 폴리라인 내부
if (!updown)
{
var CP = Utils.PointUtil.GetCenterP(points); // Center point
var p = Utils.PointUtil.Move(MP, cross_V);
var P = new Polyline();
for (int j = 0; j < points.Count; j++)
{
P.AddVertexAt(j, PointUtil.To2D(points[j]), 0, 0, 0);
}
var b = Utils.PointUtil.IsInsidePolyline(P, p, false);
if (!b)
{
cross_V = -cross_V;
}
}
#endregion
var DP = CADUtil.MoveP(MP, cross_V, H); // dimension point
var acDim = new AlignedDimension(L.StartPoint, L.EndPoint, DP, string.Empty, DimStyleId);
acDim.DimensionStyle = DimStyleId;
acDim.LayerId = LayerId;
BTR.AppendEntity(acDim);
T.AddNewlyCreatedDBObject(acDim, true);
Return.Add(acDim.Id);
}
catch
{
}
}
T.Commit();
}
return(Return);
}
