235 lines
8.1 KiB
C#
235 lines
8.1 KiB
C#
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using Autodesk.Revit.DB;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace GraphicsStudy
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{
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public static class XYZMethod
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{
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/// <summary>
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/// 坐标点去重
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/// </summary>
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/// <param name="xyzs"></param>
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/// <returns></returns>
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public static List<XYZ> DeWeighting(this List<XYZ> xyzs)
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{
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for (int i = 0; i < xyzs.Count; i++)
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{
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for (int j = 0; j < xyzs.Count; j++)
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{
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if (i == j) continue;
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if (Comparison(xyzs[i], xyzs[j], 4, false))
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{
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xyzs.RemoveAt(j);
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j--;
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}
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}
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}
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return xyzs;
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}
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public static bool Comparison(XYZ xyz1, XYZ xyz2, int v, bool is3d)
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{
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double x1 = xyz1.X;
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double y1 = xyz1.Y;
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double x2 = xyz2.X;
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double y2 = xyz2.Y;
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if (is3d)
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{
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double z1 = xyz1.Z;
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double z2 = xyz2.Z;
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return Math.Round(x1, v) == Math.Round(x2, v) && Math.Round(y1, v) == Math.Round(y2, v) && Math.Round(z1, v) == Math.Round(z2, v);
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}
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else
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{
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return Math.Round(x1, v) == Math.Round(x2, v) && Math.Round(y1, v) == Math.Round(y2, v);
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}
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}
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/// <summary>
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/// 排序
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/// ps：顺时针或者逆时针，点集合中找到最大的轮廓
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/// </summary>
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/// <param name="points"></param>
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public static void ClockwiseSortPoints(List<XYZ> points)
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{
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//计算重心
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XYZ center = new XYZ();
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double X = 0, Y = 0;
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for (int i = 0; i < points.Count; i++)
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{
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X += points[i].X;
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Y += points[i].Y;
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}
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double centerX = (int)X / points.Count;
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double centerY = (int)Y / points.Count;
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center = new XYZ(centerX, centerY, 0);
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//冒泡排序
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for (int i = 0; i < points.Count - 1; i++)
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{
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for (int j = 0; j < points.Count - i - 1; j++)
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{
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if (PointCmp(points[j], points[j + 1], center))
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{
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XYZ tmp = points[j];
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points[j] = points[j + 1];
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points[j + 1] = tmp;
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}
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}
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}
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}
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/// <summary>
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/// 判断两点绕中心点的顺逆时针方向
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/// 若点a大于点b,即点a在点b顺时针方向,返回true,否则返回false
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/// </summary>
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/// <param name="a"></param>
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/// <param name="b"></param>
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/// <param name="center"></param>
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public static bool PointCmp(XYZ a, XYZ b, XYZ center)
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{
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if (a.X >= 0 && b.X < 0) return true;
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if (a.X == 0 && b.X == 0) return a.Y > b.Y;
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//向量OA和向量OB的叉积
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int det = Convert.ToInt32((a.X - center.X) * (b.Y - center.Y) - (b.X - center.X) * (a.Y - center.Y));
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if (det < 0) return true;
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if (det > 0) return false;
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//向量OA和向量OB共线，以距离判断大小
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double d1 = (a.X - center.X) * (a.X - center.X) + (a.Y - center.Y) * (a.Y - center.Y);
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double d2 = (b.X - center.X) * (b.X - center.Y) + (b.Y - center.Y) * (b.Y - center.Y);
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return d1 > d2;
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}
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//判断点是否在线上
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public static bool IsOnLine(this XYZ xYZ, Line l)
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{
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bool result = false;
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XYZ start = l.GetEndPoint(0);
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XYZ end = l.GetEndPoint(1);
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double startDistance = xYZ.SetZ().DistanceTo(start.SetZ());
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double endDistance = xYZ.SetZ().DistanceTo(end.SetZ());
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if (startDistance + endDistance < l.Length + 5.ToFeet())
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{
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result = true;
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}
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return result;
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}
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/// <summary>
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/// 判断点是否在轮廓内
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/// </summary>
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/// <param name="TargetPoint"></param>
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/// <param name="xYZ">目标延长点</param>
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/// <param name="lines"></param>
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/// <returns></returns>
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public static bool IsInsideOutline(this XYZ TargetPoint, XYZ xYZ, List<Line> lines)
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{
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bool result = true;
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int insertCount = 0;
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Line rayLine = Line.CreateBound(TargetPoint, xYZ).SetZ(0);
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foreach (var areaLine in lines)
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{
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var interResult = areaLine.SetZ().Intersect(rayLine, out IntersectionResultArray resultArray);
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var insPoint = resultArray?.get_Item(0);
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if (insPoint != null)
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{
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insertCount++;
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}
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}
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//如果次数为偶数就在外面，次数为奇数就在里面
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if (insertCount % 2 == 0)//偶数
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{
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return result = false;
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}
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return result;
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}
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/// <summary>
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/// 判断点是否在封闭轮廓内
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/// </summary>
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/// <param name="TargetPoint"></param>
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/// <param name="lines"></param>
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/// <returns></returns>
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public static bool IsInsideOutline(this XYZ TargetPoint, List<Line> lines)
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{
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bool result = true;
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int insertCount = 0;
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Line rayLine = Line.CreateBound(TargetPoint, TargetPoint.Add(XYZ.BasisX * 1000)).SetZ(0);
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foreach (var areaLine in lines)
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{
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var interResult = areaLine.SetZ().Intersect(rayLine, out IntersectionResultArray resultArray);
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var insPoint = resultArray?.get_Item(0);
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if (insPoint != null)
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{
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insertCount++;
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}
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}
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//如果次数为偶数就在外面，次数为奇数就在里面
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if (insertCount % 2 == 0)//偶数
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{
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return result = false;
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}
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return result;
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}
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/// <summary>
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/// 英尺转毫米
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/// </summary>
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/// <param name="b"></param>
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/// <returns></returns>
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public static double ToMM(this double b)
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{
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return UnitUtils.Convert(b, DisplayUnitType.DUT_DECIMAL_FEET, DisplayUnitType.DUT_MILLIMETERS);
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}
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/// <summary>
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/// 毫米转英尺
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/// </summary>
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/// <param name="b"></param>
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/// <returns></returns>
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public static double ToFeet<T>(this T b) where T : struct
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{
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double.TryParse(b.ToString(), out var d);
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return UnitUtils.Convert(d, DisplayUnitType.DUT_MILLIMETERS, DisplayUnitType.DUT_DECIMAL_FEET);
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}
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/// <summary>
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/// 平方英尺转平方米
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/// </summary>
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/// <param name="b"></param>
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/// <returns></returns>
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public static double ToSquareMeters(this double b)
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{
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return UnitUtils.Convert(b, DisplayUnitType.DUT_SQUARE_FEET, DisplayUnitType.DUT_SQUARE_METERS);
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}
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/// <summary>
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/// 平方米转平方英尺
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/// </summary>
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/// <param name="b"></param>
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/// <returns></returns>
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public static double ToSquareFeet(this double b)
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{
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return UnitUtils.Convert(b, DisplayUnitType.DUT_SQUARE_METERS, DisplayUnitType.DUT_SQUARE_FEET);
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}
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/// <summary>
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/// 设置Z轴
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/// </summary>
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/// <param name="sPoint"></param>
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/// <param name="z"></param>
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/// <returns></returns>
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public static XYZ SetZ(this XYZ sPoint, double z = 0)
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{
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return new XYZ(sPoint.X, sPoint.Y, z);
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}
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/// <summary>
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/// 转弧度
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <returns></returns>
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public static double ToRad<T>(this T t) where T : struct
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{
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return double.Parse(t.ToString()) * Math.PI / 180;
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}
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}
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}
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