diff --git a/TestCommand.cs b/TestCommand.cs new file mode 100644 index 0000000..9725e9c --- /dev/null +++ b/TestCommand.cs @@ -0,0 +1,271 @@ +using System; +using System.Linq; +using System.Text; +using System.Linq.Expressions; +using System.Collections; +using System.Collections.Generic; +using Autodesk.Revit.Attributes; +using Autodesk.Revit.ApplicationServices; +using Autodesk.Revit.Creation; +using Autodesk.Revit.DB; +using Autodesk.Revit.DB.Architecture; +using Autodesk.Revit.DB.Plumbing; +using Autodesk.Revit.UI; +using Autodesk.Revit.UI.Selection; +using Document = Autodesk.Revit.DB.Document; +using Newtonsoft.Json; +using System.IO; +using Autodesk.Revit.DB.DirectContext3D; +using System.Runtime.CompilerServices; + +namespace GeoTest +{ + [TransactionAttribute(TransactionMode.Manual)] + [RegenerationAttribute(RegenerationOption.Manual)] + + public class TestCommand : IExternalCommand + { + public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements) + { + var applicationApp = commandData.Application.Application; + var app = commandData.Application; + var uidoc = app.ActiveUIDocument; + var doc = uidoc.Document; + var inf=GetData(doc, applicationApp); + OutPut(inf); + return Result.Succeeded; + } + + private Information GetData(Document doc, Autodesk.Revit.ApplicationServices.Application app) + { + var instances = new List(); + var materials = new List(); + var meshes = new List(); + int instanceID = 0; + + var option = GetGeometryOption(app); + // Find all Wall instances in the document by using category filter + ElementCategoryFilter filter = new ElementCategoryFilter(BuiltInCategory.OST_StructuralColumns); + + // Apply the filter to the elements in the active document, + // Use shortcut WhereElementIsNotElementType() to find wall instances only + FilteredElementCollector collector = new FilteredElementCollector(doc); + IList walls = collector.WherePasses(filter).WhereElementIsNotElementType().ToElements(); + foreach (var element in walls) + { + + var materialIds = element.GetMaterialIds(false).ToList(); + var thisMaterials = materialIds.Select(x => doc.GetElement(x) as Autodesk.Revit.DB.Material).ToList(); + var transformList = new List(); + foreach (var mat in thisMaterials) + { + var color = mat.Color; + var newMat = new Material(new List() { color.Red,color.Green,color.Blue}, mat.Transparency); + materials.Add(newMat); + } + if (element is FamilyInstance) + { + var transform = (element as FamilyInstance).GetTotalTransform(); + transformList.Add(transform.BasisX); + transformList.Add(transform.BasisY); + transformList.Add(transform.BasisZ); + } + else + { + var transform = Transform.Identity; + transformList.Add(transform.BasisX); + transformList.Add(transform.BasisY); + transformList.Add(transform.BasisZ); + } + var geoElement = element.get_Geometry(option); + + foreach (var geoObject in geoElement) + { + Solid solid = geoObject as Solid; + if (null == solid || 0 == solid.Faces.Size || 0 == solid.Edges.Size) + { + continue; + } + + + var vertices = new List(); + var faceVertices = new List();//按顺序将每个面用3个顶点表示 + var triInfo = new Dictionary, XYZ>(); + var normals = new List(); + + // Get the faces and edges from solid, and transform the formed points + foreach (Face face in solid.Faces) + { + Autodesk.Revit.DB.Mesh mesh = face.Triangulate(); + var count = mesh.NumTriangles; + for(int i=0;i(); + var triangle = mesh.get_Triangle(i); + //normal + //(x3 - x1).CrossProduct(x2 - x1) + var thisNormal = ((triangle.get_Vertex(2) - triangle.get_Vertex(0)).CrossProduct((triangle.get_Vertex(1) - triangle.get_Vertex(0)))).Normalize(); + + for (int j=0;j<3;j++) + { + var vertex = triangle.get_Vertex(j); + var sameIndex=vertices.Where(x => x.DistanceTo(vertex) < 0.00001); + if (!sameIndex.Any()) + { + vertices.Add(vertex); + vertexIndecies.Add(vertices.Count() - 1); + } + else + { + vertexIndecies.Add(vertices.IndexOf(sameIndex.First())); + } + } + triInfo.Add(vertexIndecies, thisNormal); + faceVertices.AddRange(vertexIndecies); + } + + } + + //对每个顶点寻找邻接面 + //如果两面夹角小于90度，用几何均值合并normal + //如果大于90度，使用各自的normal + for (int i = 0; i < vertices.Count; i++) + { + XYZ vertex = vertices[i]; + var adjacentFaces = triInfo.Where(x => x.Key.Contains(i)).ToList(); + var jc = adjacentFaces.Count; + if (!adjacentFaces.Any()) continue; + for (int j = 0; j < jc; j++) + { + for (int k = j + 1; k < jc; k++) + { + if (Math.Cos(adjacentFaces[j].Value.AngleTo(adjacentFaces[k].Value)) > 0)//即, XYZ>(adjacentFaces[k].Key, changedNormal); + adjacentFaces[k] = tempPair; + //回到本层开头重新循环 + adjacentFaces.RemoveAt(j); + jc--; + j--; + break; + } + } + } + + normals.AddRange(adjacentFaces.Select(x => x.Value)); + } + var newMesh = new Mesh(vertices, faceVertices, normals); + meshes.Add(newMesh); + var newInstance = new Instance(instanceID, transformList, solid.Visibility, meshes.Count() - 1); + instances.Add(newInstance); + instanceID++; + } + + + + + } + + var information = new Information(instances, meshes, materials); + return information; + } + + + Options GetGeometryOption(Autodesk.Revit.ApplicationServices.Application app) + { + Autodesk.Revit.DB.Options option = app.Create.NewGeometryOptions(); + option.ComputeReferences = true; //打开计算几何引用 + option.DetailLevel = ViewDetailLevel.Fine; //视图详细程度为最好 + return option; + + } + + private void OutPut(Information information) + { + string fp = System.Windows.Forms.Application.StartupPath + "\\geometryInfo.json"; + var path = @"D:\geometryInfo.json"; + //FileStream fs1 = new FileStream(fp, FileMode.Create, FileAccess.ReadWrite); + var instanceString = JsonConvert.SerializeObject(information); + + File.WriteAllText(path, instanceString); + return; + } + + + + } + + public class Information + { + public List instances { get; set; } + public List meshes { get; set; } + public List materials { get; set; } + public Information(List instances, List meshes, List materials) + { + this.instances = instances; + this.meshes = meshes; + this.materials = materials; + } + } + + + public class Instance + { + public int id { get; set; } + public List> transform { get; set; } + public int visible { get; set; } + public int meshId { get; set; }//meshID + public string info { get; set; } + public Instance(int id, List transform, Visibility visible, int meshId) + { + this.id = id; + this.transform = new List>(); + foreach(var trans in transform) + { + var tempTrans = new List() { trans.X, trans.Y, trans.Z }; + this.transform.Add(tempTrans); + } + this.visible = (int)visible; + this.meshId = meshId; + } + } + + public class Mesh + { + public List> vertices { get; set; } + public List vertexIndices { get; set; } + public List> normals { get; set; }//点法向量 + public Mesh(List vertices, List vertexIndices, List normals) + { + this.vertexIndices = vertexIndices; + this.vertices = new List>(); + foreach(var vertex in vertices) + { + var tempV = new List() { vertex.X, vertex.Y, vertex.Z }; + this.vertices.Add(tempV); + + } + this.normals = new List>(); + foreach (var n in normals) + { + var tempN = new List() { n.X, n.Y, n.Z }; + this.normals.Add(tempN); + + } + } + } + + public class Material + { + public List color { get; set; } + public double transparent { get; set; }//透明度 + public Material(List color, double transparent) + { + this.color = color; + this.transparent = transparent; + } + } + +} \ No newline at end of file diff --git a/geometryInfo.json b/geometryInfo.json new file mode 100644 index 0000000..636285f --- /dev/null +++ b/geometryInfo.json @@ -0,0 +1 @@ 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\ No newline at end of file