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Mstn.Toolkit/Extensions/ElementExtensions.cs
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256
Mstn.Toolkit/Extensions/ElementExtensions.cs
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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 Bentley.DgnPlatformNET;
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using Bentley.DgnPlatformNET.Elements;
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using Bentley.GeometryNET;
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using Bentley.MstnPlatformNET;
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using Mstn.Toolkit.Extensions;
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namespace Mstn.Toolkit.Extensions
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{
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public static class ElementExtensions
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{
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/// <summary>
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/// 元素应用变换
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/// </summary>
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/// <param name="elem"></param>
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/// <param name="transform3D"></param>
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public static void MakeTransform(this Element elem, DTransform3d transform3D)
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{
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Element newElement = Element.GetFromElementRef(elem.GetNativeElementRef());
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TransformInfo info = new TransformInfo(transform3D);
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newElement.ApplyTransform(info);
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newElement.ReplaceInModel(elem);
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}
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/// <summary>
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/// 提取曲面边界点
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/// </summary>
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/// <param name="eleMesh"></param>
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/// <returns></returns>
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public static HashSet<DPoint3d> ExtractBoundaryPoints(Element eleMesh)
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{
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var listPtNew = new HashSet<DPoint3d>();
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var query = MeshQuery.GetAsMeshQuery(eleMesh);
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PolyfaceHeader faceHeader = query.GetMeshData();
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if (faceHeader.IsClosedByEdgePairing)
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{
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foreach (var item in faceHeader.Point)
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{
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listPtNew.Add(item);
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}
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}
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else
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{
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var face = PolyfaceHeader.RemoveDuplicateFaces(faceHeader, true);
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var curVector = face.ExtractBoundaryStrings(out var openPaths, out int closedPaths);
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foreach (var item in face.Point)
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{
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listPtNew.Add(item);
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}
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}
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return listPtNew;
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}
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/// <summary>
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/// 设置颜色
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/// </summary>
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/// <param name="element"></param>
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/// <param name="colorIndex"></param>
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/// <returns></returns>
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public static Element SetSolidColor(this Element element, uint colorIndex)
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{
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if (element.ElementType == MSElementType.Solid)//判断元素类型是否为Solid
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{
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ElementPropertiesSetter setter = new ElementPropertiesSetter();//修改元素属性
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setter.SetColor(colorIndex);//设置索引值colorIndex的颜色为元素颜色
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setter.Apply(element);//将设置应用于指定元素
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return element;
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}
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return null;
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}
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/// <summary>
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/// 获取元素的图层，如果是一般单元，则按第一个子元素来获取
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/// </summary>
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/// <param name="element"></param>
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/// <returns></returns>
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public static LevelHandle GetLevel(this Element element)
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{
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ElementPropertiesGetter getter = new ElementPropertiesGetter(element);
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var lvlcache = Session.Instance.GetActiveDgnFile().GetLevelCache();
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//一般单元
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if (element.GetChildren().Count() > 0)
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{
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foreach (var elem in element.GetChildren())
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{
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if (elem is DisplayableElement && !elem.IsInvisible)
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{
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return elem.GetLevel();
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}
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}
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}
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return lvlcache.GetLevel(getter.Level, true);
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}
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/// <summary>
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/// 设置元素图层
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/// </summary>
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/// <param name="element"></param>
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/// <param name="leveName"></param>
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/// <remarks>图层名不存在时，则创建</remarks>
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/// <returns></returns>
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public static Element SetLevel(this Element element, string leveName)
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{
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Element oldElem = Element.GetFromElementRef(element.GetNativeElementRef());
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if (string.IsNullOrEmpty(leveName))
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{
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return element;
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}
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//获取指定名层
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DgnFile dgnfile = Session.Instance.GetActiveDgnFile();
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FileLevelCache lvlCache = dgnfile.GetLevelCache();
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LevelHandle lvlHandle = lvlCache.GetLevelByName(leveName);
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if (!lvlHandle.IsValid)//当前文件中不存在时创建
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{
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lvlCache.CreateLevel(leveName);
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lvlCache.Write();
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lvlHandle = lvlCache.GetLevelByName(leveName);
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}
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//设置元素的层属性写入模型中
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ElementPropertiesSetter eleSet = new ElementPropertiesSetter();
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eleSet.SetLevel(lvlHandle.LevelId);
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eleSet.Apply(element);
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element.ReplaceInModel(oldElem);
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return element;
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}
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/// <summary>
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/// 获取元素的长度
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/// </summary>
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/// <param name="elem">元素</param>
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/// <returns>长度值，单位mm</returns>
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public static double GetLength(this Element elem)
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{
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double length = default;
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if (elem is LineElement line)
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{
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length = line.GetCurveVector().SumOfLengths();
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}
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if (elem is ComplexStringElement complexString)
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{
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length = complexString.GetCurveVector().SumOfLengths();
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}
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if (elem is LineStringBaseElement lineStringBase)
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{
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length = lineStringBase.GetCurveVector().SumOfLengths();
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}
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if (elem is EllipseElement ellipseElement)
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{
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length = ellipseElement.GetCurveVector().SumOfLengths();
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}
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//if (elem is LineStringElement lineString)
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//{
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// curve = lineString.GetCurveVector().SumOfLengths();
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// //GetFilteredECPropValue(lineString, "ID-100-名称");
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//}
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//if (elem is ShapeElement shape)
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//{
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// curve = shape.GetCurveVector().SumOfLengths();
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//}
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if (elem is ComplexShapeElement complexShape)
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{
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length = complexShape.GetCurveVector().SumOfLengths();
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}
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if (elem is BSplineCurveElement bSplineCurve)
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{
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length = bSplineCurve.GetCurveVector().SumOfLengths();
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}
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return Math.Round(length, MidpointRounding.AwayFromZero);
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}
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/// <summary>
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/// 获取元素的CurveVector
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/// </summary>
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/// <returns></returns>
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public static CurveVector GetCurveVector(this Element elem)
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{
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CurveVector curve = default;
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if (elem is LineElement line)
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{
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curve = line.GetCurveVector();
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}
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if (elem is ComplexStringElement complexString)
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{
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curve = complexString.GetCurveVector();
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}
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if (elem is LineStringBaseElement lineStringBase)
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{
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curve = lineStringBase.GetCurveVector();
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}
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if (elem is EllipseElement ellipseElement)
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{
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curve = ellipseElement.GetCurveVector();
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}
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//if (elem is LineStringElement lineString)
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//{
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// curve = lineString.GetCurveVector();
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// //GetFilteredECPropValue(lineString, "ID-100-名称");
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//}
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//if (elem is ShapeElement shape)
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//{
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// curve = shape.GetCurveVector();
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//}
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if (elem is ComplexShapeElement complexShape)
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{
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curve = complexShape.GetCurveVector();
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}
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if (elem is BSplineCurveElement bSplineCurve)
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{
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curve = bSplineCurve.GetCurveVector();
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}
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return curve;
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}
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/// <summary>
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/// 获取元素中的圆弧
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/// </summary>
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/// <param leveName="elem"></param>
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/// <returns>若没有，则返回空列表</returns>
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public static List<DEllipse3d> GetArcs(this Element elem)
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{
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var list = new List<DEllipse3d>();
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foreach (var child in elem.GetCurveVector())
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{
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if (child.GetCurvePrimitiveType() == CurvePrimitive.CurvePrimitiveType.Arc)
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{
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child.TryGetArc(out var arc);
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list.Add(arc);
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}
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}
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return list;
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}
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/// <summary>
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/// 获取元素中线
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/// </summary>
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/// <param leveName="elem"></param>
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/// <returns></returns>
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public static List<DSegment3d> GetLines(this Element elem)
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{
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var list = new List<DSegment3d>();
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foreach (var child in elem.GetCurveVector())
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{
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if (child.GetCurvePrimitiveType() == CurvePrimitive.CurvePrimitiveType.Arc)
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{
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child.TryGetLine(out var line);
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list.Add(line);
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}
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}
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return list;
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}
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}
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}
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