257 lines
9.4 KiB
C#
257 lines
9.4 KiB
C#
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using Autodesk.Revit.Attributes;
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using Autodesk.Revit.DB;
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using Autodesk.Revit.UI;
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using Autodesk.Revit.UI.Selection;
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using Nice3point.Revit.Toolkit.External;
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using System;
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using System.Linq;
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namespace Szmedi.RvKits.Civil;
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[Transaction(TransactionMode.Manual)]
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public class SlopedFloorCmd : ExternalCommand
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{
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public override void Execute()
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{
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#region SelectExecute
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using Transaction trans = new(Document, "坡度楼板");
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try
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{
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Line line1 = null;
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Line line2 = null;
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HostObject obj1 = null;
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HostObject obj2 = null;
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UiDocument.Selection.PickObject(
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ObjectType.Edge,
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new FuncFilter(
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elem => elem is HostObject,
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(r, p) =>
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{
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obj1 = Document.GetElement(r) as HostObject;
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Edge edge = obj1.GetGeometryObjectFromReference(r) as Edge;
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if (edge.AsCurve() is Line l && l.Direction.Z < 0.0001)
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{
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line1 = l;
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return true;
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}
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return false;
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}
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),
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"请选择主体图元其中的一条水平边"
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);
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UiDocument.Selection.PickObject(
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ObjectType.Edge,
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new FuncFilter(
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elem => elem is HostObject && elem.Id.IntegerValue != obj1.Id.IntegerValue,
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(r, p) =>
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{
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obj2 = Document.GetElement(r) as HostObject;
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Edge edge1 = obj2.GetGeometryObjectFromReference(r) as Edge;
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if (
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edge1.AsCurve() is Line l
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&& l.Direction.Z < 0.0001
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&& l.Direction.CrossProduct(line1.Direction).IsAlmostEqualTo(XYZ.Zero)
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)
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{
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line2 = l;
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return true;
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}
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return false;
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}
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),
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"请选择另一个主体图元的水平边（与第一条平行）"
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);
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Level level1 = Document.GetElement(obj1.LevelId) as Level;
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Level level2 = Document.GetElement(obj2.LevelId) as Level;
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Level baseLevel = level1.Elevation > level2.Elevation ? level2 : level1;
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//基准边，低的边
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Line lineBase;
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Line lineAnother;
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if (line1.Origin.Z < line2.Origin.Z)
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{
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lineBase = line1;
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lineAnother = line2;
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}
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else
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{
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lineBase = line2;
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lineAnother = line1;
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}
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CurveArray curveArr = new();
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Plane planeToProject = Plane.CreateByNormalAndOrigin(XYZ.BasisZ, lineBase.Origin);
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SignedDistanceTo(planeToProject, lineBase.GetEndPoint(0), out XYZ p1);
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SignedDistanceTo(planeToProject, lineBase.GetEndPoint(1), out XYZ p2);
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SignedDistanceTo(planeToProject, lineAnother.GetEndPoint(0), out XYZ p3);
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SignedDistanceTo(planeToProject, lineAnother.GetEndPoint(1), out XYZ p4);
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Line l1;
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Line l2;
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Line l3;
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Line l4;
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if (lineBase.Direction.IsAlmostEqualTo(lineAnother.Direction))
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{
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l1 = Line.CreateBound(p1, p2);
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l3 = Line.CreateBound(p4, p3);
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l4 = Line.CreateBound(p3, p1);
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l2 = Line.CreateBound(p2, p4);
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}
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else
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{
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l1 = Line.CreateBound(p1, p2);
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l3 = Line.CreateBound(p3, p4);
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l4 = Line.CreateBound(p4, p1);
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l2 = Line.CreateBound(p2, p3);
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}
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trans.Start();
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curveArr.Append(l1);
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curveArr.Append(l2);
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curveArr.Append(l3);
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curveArr.Append(l4);
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//var isStructure = obj1.get_Parameter(BuiltInParameter.FLOOR_PARAM_IS_STRUCTURAL).AsInteger();
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//选择线的中点连线
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Line centerLine = Line.CreateBound(lineBase.Evaluate(0.5, true), lineAnother.Evaluate(0.5, true));
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//中线和边线叉乘，求出楼板面的法向量
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XYZ floorNormal = lineBase.Direction.CrossProduct(centerLine.Direction);
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if (floorNormal.Z < 0)
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{
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floorNormal = floorNormal.Negate();
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}
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//坡度角
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double radian = floorNormal.AngleTo(XYZ.BasisZ);
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//另一条楼板边垂直xy的平面
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XYZ normal = lineAnother.Direction.CrossProduct(XYZ.BasisZ);
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Plane plane = Plane.CreateByNormalAndOrigin(normal, lineAnother.Evaluate(0.5, true));
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//点与平面的距离
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XYZ centerPoint = lineBase.Evaluate(0.5, true);
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double distance = SignedDistanceTo(plane, centerPoint, out XYZ perpPoint);
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Line slopedArrow = Line.CreateBound(centerPoint, new XYZ(perpPoint.X, perpPoint.Y, centerPoint.Z));
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//if (lineBase.Origin.Z > lineAnother.Origin.Z)
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//{
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// slopedArrow = slopedArrow.CreateReversed() as Line;
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//}
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//即板上表面法向量和Z轴正向之间
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//double radian = slopedArrow.Direction.AngleOnPlaneTo(XYZ.BasisX, XYZ.BasisZ);
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//double slope = Math.Abs(line1.Evaluate(0.5, true).Z - line2.Evaluate(0.5, true).Z);
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//slopedArrow用以指定在XY平面上绘制的板轮廓，是沿着哪个方向进行坡度变化的。因此，这条线实际上是XY平面上，垂直于板上表面与XY平面交线的一条线。
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Document.Create.NewSlab(curveArr, baseLevel, slopedArrow, Math.Tan(radian), true);
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trans.Commit();
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}
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catch (Autodesk.Revit.Exceptions.OperationCanceledException)
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{
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if (trans.GetStatus() == TransactionStatus.Started)
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{
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trans.Commit();
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}
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}
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catch (Exception ex)
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{
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ErrorMessage = ex.Message;
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if (trans.GetStatus() == TransactionStatus.Started)
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{
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trans.RollBack();
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}
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Result = Result.Failed;
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}
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#endregion SelectExecute
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}
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public bool IfSameHeight(List<double> vs)
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{
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//判断楼板中各端点标高是否相等
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List<double> list = new();
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foreach (double z in vs)
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{
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if (list.Contains(z) == false)
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{
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list.Add(z);
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}
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}
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return list.Count == 1;
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}
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/// <summary>
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/// 得到垂足
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/// </summary>
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/// <param name="p0"></param>
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/// <param name="p1"></param>
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/// <param name="pX">经过该点作与p0,p1所在直线的垂线</param>
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/// <returns></returns>
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public static XYZ PerpIntersection(XYZ pX, XYZ p0, XYZ p1)
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{
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//直线向量和p0点到px点的点积
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XYZ v0 = pX - p0;
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XYZ v1 = p1 - p0;
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double dotProduct = v0.DotProduct(v1); //|v0||v1|cos α
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double length = v1.GetLength(); //直线的长度|v1|
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XYZ normalize = v1 / length; //直线单位向量
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double m = dotProduct / length; //垂足的模
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return (normalize * m) + p0;
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//var nu3 = nu / (nu2 * nu2);
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//XYZ result = p0 + v1 * nu3;
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//return result;
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//double num = (pX.X - p0.X) * (p1.X - p0.X) + (pX.Y - p0.Y) * (p1.Y - p0.Y) + (pX.Z - p0.Z) * (p1.Z - p0.Z);
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//double num2 = p0.DistanceTo(p1);//直线的长度
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//num /= num2 * num2;
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//return new XYZ(p0.X + num * (p1.X - p0.X), p0.Y + num * (p1.Y - p0.Y), p0.Z + num * (p1.Z - p0.Z));
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}
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private void EditSubElements(Floor floor)
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{
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SlabShapeEditor slabShapeEditor = floor.SlabShapeEditor;
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if (slabShapeEditor.IsEnabled)
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{
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SlabShapeVertexArray vertices = slabShapeEditor.SlabShapeVertices;
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List<double> z_list = new();
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foreach (SlabShapeVertex slabShapeVertex in vertices)
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{
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z_list.Add(slabShapeVertex.Position.Z);
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}
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//判断为水平板后重设形状
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if (IfSameHeight(z_list))
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{
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Level floor_level = floor.Document.GetElement(floor.LevelId) as Level; //获取楼板所在标高
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double level_height = double.Parse(floor_level.LookupParameter("立面").AsValueString()); //获取所在标高的标高
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double offset_height = (z_list.FirstOrDefault() * 304.8) - level_height;
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floor.get_Parameter(BuiltInParameter.FLOOR_HEIGHTABOVELEVEL_PARAM).SetValueString(offset_height.ToString());
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slabShapeEditor.ResetSlabShape();
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}
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}
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}
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/// <summary>
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/// 点与平面的距离
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/// </summary>
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/// <param name="plane"></param>
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/// <param name="p"></param>
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/// <param name="projectPoint"></param>
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/// <returns></returns>
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private double SignedDistanceTo(Plane plane, XYZ p, out XYZ projectPoint)
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{
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XYZ v = p - plane.Origin;
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//垂向距离（可正可负,夹角钝角为负）
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double perp = v.DotProduct(plane.Normal);
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projectPoint = p - (perp * plane.Normal);
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return plane.Normal.DotProduct(v);
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}
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}
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