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添加项目文件。

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2024-09-22 11:05:41 +08:00
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Sai.Toolkit.Revit/Helpers/GeometryAssist.cs Normal file
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using Autodesk.Revit.DB;
namespace Sai.Toolkit.Revit.Helpers
{
internal class GeometryAssist
{
public static void CreateDirectShape(
Document doc,
List<XYZ> vertices,
List<Face> faces,
ElementId graphicsStyleId,
ElementId categoryId,
string appGuid,
string shapeName
)
{
var nFaces = 0;
var builder = new TessellatedShapeBuilder { LogString = shapeName };
var corners = new List<XYZ>();
builder.OpenConnectedFaceSet(false);
foreach (var f in faces)
{
builder.LogInteger = nFaces;
//if (corners.Capacity < f.Indices.Count)//设置corner的Capacity值，减少内存开销
//{
// corners = new ErrorModels<XYZ>(f.Indices.Count);
//}
//corners.Clear();
//foreach (Index i in f.Indices)
//{
// if (i.vertex >= vertices.Count)
// {
// return;
// }
// corners.Add(vertices[i.vertex]);
//}
try
{
builder.AddFace(new TessellatedFace(corners, ElementId.InvalidElementId));
}
catch (Autodesk.Revit.Exceptions.ArgumentException) { }
}
builder.CloseConnectedFaceSet();
builder.Target = TessellatedShapeBuilderTarget.AnyGeometry;
builder.Fallback = TessellatedShapeBuilderFallback.Mesh;
builder.GraphicsStyleId = graphicsStyleId;
builder.Build();
var ds = DirectShape.CreateElement(doc, categoryId);
ds.ApplicationId = appGuid;
ds.ApplicationDataId = shapeName;
ds.SetShape(builder.GetBuildResult().GetGeometricalObjects());
ds.Name = shapeName;
}
//public BRepBuilder CreateGeo()
//{
//BRepBuilder bRepBuilder=new BRepBuilder(BRepType.Solid);
//BRepBuilderEdgeGeometry.Create();
//BRepBuilderSurfaceGeometry.Create();
//BRepBuilderSurfaceGeometry.CreateNURBSSurface();
//}
public static void CreateDirectShapeFromCylinder(Document doc)
{
// Naming convention for faces and edges: we assume that x is to the left and pointing down, y is horizontal and pointing to the right, z is up
var brepBuilder = new BRepBuilder(BRepType.Solid);
// The surfaces of the four faces.
var basis = new Frame(new XYZ(50, -100, 0), new XYZ(0, 1, 0), new XYZ(-1, 0, 0), new XYZ(0, 0, 1));
var cylSurf = CylindricalSurface.Create(basis, 50);
var top = Plane.CreateByNormalAndOrigin(new XYZ(0, 0, 1), new XYZ(0, 0, 100)); // normal points outside the cylinder
var bottom = Plane.CreateByNormalAndOrigin(new XYZ(0, 0, 1), new XYZ(0, 0, 0)); // normal points inside the cylinder
// Add the four faces
var frontCylFaceId = brepBuilder.AddFace(BRepBuilderSurfaceGeometry.Create(cylSurf, null), false);
var backCylFaceId = brepBuilder.AddFace(BRepBuilderSurfaceGeometry.Create(cylSurf, null), false);
var topFaceId = brepBuilder.AddFace(BRepBuilderSurfaceGeometry.Create(top, null), false);
var bottomFaceId = brepBuilder.AddFace(BRepBuilderSurfaceGeometry.Create(bottom, null), true);
// Geometry for the four semi-circular edges and two vertical linear edges
var frontEdgeBottom = BRepBuilderEdgeGeometry.Create(Arc.Create(new XYZ(0, -100, 0), new XYZ(100, -100, 0), new XYZ(50, -50, 0)));
var backEdgeBottom = BRepBuilderEdgeGeometry.Create(Arc.Create(new XYZ(100, -100, 0), new XYZ(0, -100, 0), new XYZ(50, -150, 0)));
var frontEdgeTop = BRepBuilderEdgeGeometry.Create(Arc.Create(new XYZ(0, -100, 100), new XYZ(100, -100, 100), new XYZ(50, -50, 100)));
var backEdgeTop = BRepBuilderEdgeGeometry.Create(Arc.Create(new XYZ(0, -100, 100), new XYZ(100, -100, 100), new XYZ(50, -150, 100)));
var linearEdgeFront = BRepBuilderEdgeGeometry.Create(new XYZ(100, -100, 0), new XYZ(100, -100, 100));
var linearEdgeBack = BRepBuilderEdgeGeometry.Create(new XYZ(0, -100, 0), new XYZ(0, -100, 100));
// Add the six edges
var frontEdgeBottomId = brepBuilder.AddEdge(frontEdgeBottom);
var frontEdgeTopId = brepBuilder.AddEdge(frontEdgeTop);
var linearEdgeFrontId = brepBuilder.AddEdge(linearEdgeFront);
var linearEdgeBackId = brepBuilder.AddEdge(linearEdgeBack);
var backEdgeBottomId = brepBuilder.AddEdge(backEdgeBottom);
var backEdgeTopId = brepBuilder.AddEdge(backEdgeTop);
// Loops of the four faces
var loopIdTop = brepBuilder.AddLoop(topFaceId);
var loopIdBottom = brepBuilder.AddLoop(bottomFaceId);
var loopIdFront = brepBuilder.AddLoop(frontCylFaceId);
var loopIdBack = brepBuilder.AddLoop(backCylFaceId);
// Add coedges for the loop of the front face
brepBuilder.AddCoEdge(loopIdFront, linearEdgeBackId, false);
brepBuilder.AddCoEdge(loopIdFront, frontEdgeTopId, false);
brepBuilder.AddCoEdge(loopIdFront, linearEdgeFrontId, true);
brepBuilder.AddCoEdge(loopIdFront, frontEdgeBottomId, true);
brepBuilder.FinishLoop(loopIdFront);
brepBuilder.FinishFace(frontCylFaceId);
// Add coedges for the loop of the back face
brepBuilder.AddCoEdge(loopIdBack, linearEdgeBackId, true);
brepBuilder.AddCoEdge(loopIdBack, backEdgeBottomId, true);
brepBuilder.AddCoEdge(loopIdBack, linearEdgeFrontId, false);
brepBuilder.AddCoEdge(loopIdBack, backEdgeTopId, true);
brepBuilder.FinishLoop(loopIdBack);
brepBuilder.FinishFace(backCylFaceId);
// Add coedges for the loop of the top face
brepBuilder.AddCoEdge(loopIdTop, backEdgeTopId, false);
brepBuilder.AddCoEdge(loopIdTop, frontEdgeTopId, true);
brepBuilder.FinishLoop(loopIdTop);
brepBuilder.FinishFace(topFaceId);
// Add coedges for the loop of the bottom face
brepBuilder.AddCoEdge(loopIdBottom, frontEdgeBottomId, false);
brepBuilder.AddCoEdge(loopIdBottom, backEdgeBottomId, false);
brepBuilder.FinishLoop(loopIdBottom);
brepBuilder.FinishFace(bottomFaceId);
brepBuilder.Finish();
using var tr = new Transaction(doc, "Create a DirectShape");
tr.Start();
var ds = DirectShape.CreateElement(doc, new ElementId(BuiltInCategory.OST_GenericModel));
ds.SetShape(brepBuilder);
tr.Commit();
}
}
}