243 lines
10 KiB
C#
243 lines
10 KiB
C#
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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using System.Windows;
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using Bentley.DgnPlatformNET;
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using Bentley.DgnPlatformNET.DgnEC;
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using Bentley.DgnPlatformNET.Elements;
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using Bentley.ECObjects.Instance;
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using Bentley.ECObjects.Schema;
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using Bentley.GeometryNET;
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using Bentley.MstnPlatformNET;
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namespace CenterCurveAddins
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{
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internal class SharedCellTunnelLengthHelper
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{
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#region 共享单元
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/// <summary>
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/// 包围盒中心点
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/// </summary>
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/// <returns></returns>
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private static HashSet<DPoint3d> GetBoundingBoxCentroid(HashSet<SharedCellElement> cellElements)
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{
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var hashSet = new HashSet<DPoint3d>();
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foreach (var element in cellElements)
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{
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// 获取元素的范围，使用单位矩阵获取模型坐标系中的范围
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var status = element.CalcElementRange(out var range);
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if (!range.IsNull() && status == StatusInt.Success)
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{
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var center = (range.Low + range.High) * 0.5;
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hashSet.Add(center);
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}
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}
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return hashSet;
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}
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/// <summary>
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/// 判断元素是否是曲线
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/// </summary>
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/// <param name="elem">元素</param>
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/// <returns>是否是曲线</returns>
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private static bool IsCurve(Element elem)
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{
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return elem is LineElement ||
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elem is ComplexStringElement ||
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elem is LineStringBaseElement ||
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elem is EllipseElement ||
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elem is ComplexShapeElement ||
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elem is BSplineCurveElement;
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}
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/// <summary>
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/// 通过点分布获取中心线
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/// </summary>
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/// <param name="listLineMilGeoData"></param>
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/// <param name="listPtAll"></param>
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/// <returns></returns>
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private static Element GetCenterLine(List<Element> listLineMilGeoData, HashSet<DPoint3d> listPtAll)
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{
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Element targetLine = null;
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//随机取点
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var pt3dMid = listPtAll.FirstOrDefault();
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if (listPtAll == null || listPtAll.Count == 0)
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{
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return targetLine;
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}
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double dDisMin = double.MaxValue;
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//找到距离点最近的线元素
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foreach (var item in listLineMilGeoData)
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{
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CurveVector cv = CurvePathQuery.ElementToCurveVector(item);
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if (cv == null)
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{
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continue;
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}
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CurveLocationDetail curLocDetail = cv.ClosestPointBounded(pt3dMid);
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if (curLocDetail == null)
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{
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continue;
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}
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double dDis = pt3dMid.DistanceXY(curLocDetail.Point);
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if (dDis < dDisMin)
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{
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dDisMin = dDis;
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targetLine = item;
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}
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}
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return targetLine;
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}
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/// <summary>
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/// 获取共享单元在最近的中线投影长度
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/// </summary>
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/// <param name="cellElements">同一个类型的Cell实体</param>
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/// <param name="centerLineLevel">中心线所在图层，起始字符，如DG-ZZX</param>
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/// <returns></returns>
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private static double GetCellsProjectLength(HashSet<SharedCellElement> cellElements, string centerLineLevel)
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{
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if (cellElements.Count == 0)
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{
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return 0.0;
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}
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DgnModel dgnModel = Session.Instance.GetActiveDgnModel();
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var levelCache = dgnModel.GetLevelCache();
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//过滤获取线条元素，即所有中心线
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var listLineMilGeoData = dgnModel.GetElements()
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.Where(
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e => e.IsValid &&
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!e.IsInvisible &&
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levelCache.GetLevel(e.LevelId)?.DisplayName.Trim().StartsWith(centerLineLevel) == true &&
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IsCurve(e))
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.ToList();
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//曲面拍平的所有点
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var listPtAll = GetBoundingBoxCentroid(cellElements);
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//通过点分布获取中心线
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var targetLine = GetCenterLine(listLineMilGeoData, listPtAll);
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if (targetLine != null)
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{
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CurveVector curveVector = CurvePathQuery.ElementToCurveVector(targetLine);
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//找到曲面拍平的 所有点 到 平面距离最近中心线上的点
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var locs = listPtAll.Select(curveVector.ClosestPointBoundedXY);
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var ordered = locs.OrderBy(loc => curveVector.CurveLocationDetailIndex(loc)).ThenBy(loc => loc.Fraction);
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var min = ordered.FirstOrDefault();
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var max = ordered.LastOrDefault();
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var minIndex = curveVector.CurveLocationDetailIndex(min);
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var maxIndex = curveVector.CurveLocationDetailIndex(max);
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var minCurve = curveVector.GetPrimitive((int)minIndex);
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var maxCurve = curveVector.GetPrimitive((int)maxIndex);
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//拿到最大最小线段距离
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minCurve.SignedDistanceBetweenFractions(0, min.Fraction, out var dist);
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maxCurve.SignedDistanceBetweenFractions(0, max.Fraction, out var dist1);
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//var l = (dist1 - dist) / Session.Instance.GetActiveDgnModel().GetModelInfo().UorPerMeter > 5000;
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if (minIndex == maxIndex) //是否在同一条线上
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{
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return (dist1 - dist) / Session.Instance.GetActiveDgnModel().GetModelInfo().UorPerMeter;
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}
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else if (maxIndex > minIndex)
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{
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minCurve.Length(out var minLength);
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//maxCurve.Length(out var maxlength);
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var minDis = minLength - dist;//前置曲线的后半段
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//var maxDis = max.Fraction * maxlength;//后置曲线的前半段
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var length = minDis + dist1;
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if (maxIndex - minIndex > 1)//不连续，中间还有其他的线
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{
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for (var i = minIndex + 1; i < maxIndex; i++)
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{
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curveVector.GetPrimitive((int)i).Length(out var l);
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length += l;
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}
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}
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return length / Session.Instance.GetActiveDgnModel().GetModelInfo().UorPerMeter;
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}
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}
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return 0.0;
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}
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/// <summary>
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/// 根据元素类型名称，获取对应元素在中心线上的投影长度
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/// </summary>
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/// <param name="centerLineLevel">中心线图层起始字符串，中线可能在两个图层上DG-ZZX</param>
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/// <param name="modelLevel">共享单元所在图层</param>
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/// <returns>网格元素和投影长度的集合</returns>
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/// <remarks>如果是</remarks>
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public static Dictionary<string, double> GetSharedCellProjectLength(string centerLineLevel, string modelLevel)
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{
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Dictionary<string, double> cellLengthDictionary = new Dictionary<string, double>();
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DgnModel dgnModel = Session.Instance.GetActiveDgnModel();
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var levelCache = dgnModel.GetLevelCache();
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try
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{
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var sharedCellElements = dgnModel.GetElements()
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.Where(e => e.IsValid && !e.IsInvisible && (levelCache.GetLevel(e.LevelId)?.DisplayName.Trim().ToUpper() == modelLevel) && e is SharedCellElement).Cast<SharedCellElement>().ToHashSet();
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var groups = sharedCellElements.GroupBy(cell => GetProperyValues(cell, "ID-100-名称").FirstOrDefault().NativeValue.ToString());
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foreach (var group in groups)
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{
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var length = GetCellsProjectLength(sharedCellElements, centerLineLevel);
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cellLengthDictionary.Add(group.Key, length);
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}
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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return cellLengthDictionary;
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}
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/// <summary>
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/// 获取所有属性
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/// </summary>
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/// <param name="element"></param>
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private static List<IECPropertyValue> GetProperyValues(Element element, string propName)
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{
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if (null == element)
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{
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throw new ArgumentNullException(nameof(element), "所提供ElemId无效");
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}
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List<IECPropertyValue> eCProperties = new List<IECPropertyValue>();
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DgnECManager ecManager = DgnECManager.Manager;
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int count = 0;
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DgnECInstanceCollection instCol = ecManager.GetElementProperties(element, ECQueryProcessFlags.SearchAllClasses);
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foreach (IDgnECInstance inst in instCol)
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{
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count++;
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IEnumerator<IECProperty> propertyEnum = inst.ClassDefinition.GetEnumerator();
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while (propertyEnum.MoveNext())
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{
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IECPropertyValue propertyValue = inst.GetPropertyValue(propertyEnum.Current.Name);
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if (propertyValue == null)
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{
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continue;
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}
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if (propertyValue.IsArray)
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{
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IECArrayValue arrayVal = propertyValue as IECArrayValue;
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if (arrayVal.Count >= 1)
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propertyValue = arrayVal[0];
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}
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var prop = propertyEnum.Current.Name;
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ECNameValidation.DecodeFromValidName(ref prop);
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if (propName == prop)
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{
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eCProperties.Add(propertyValue);
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}
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}
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}
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return eCProperties;
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}
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#endregion
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}
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}
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