Revi开发 - 碰撞检测

心已赠人 2022-02-25 10:20 214阅读 0赞

本文演示Revit文件中的碰撞检测。

### 1.用Revit绘制模型 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70][]

### 2.碰撞检测 ###

using Autodesk.Revit.Attributes;
    using Autodesk.Revit.DB;
    using Autodesk.Revit.UI;
    using System.Linq;
    using System.Windows.Forms;
    
    namespace RevitAddin4
    {
        [TransactionAttribute(TransactionMode.Manual)]
        public class RevitAddin : IExternalCommand
        {
            public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
            {
                UIDocument uiDoc = commandData.Application.ActiveUIDocument;
                Document doc = uiDoc.Document;
                //当前视图下的结构梁
                FilteredElementCollector collector = new FilteredElementCollector(doc,doc.ActiveView.Id);
                collector.OfCategory(BuiltInCategory.OST_StructuralFraming).OfClass(typeof(FamilyInstance));
                           
                FilteredElementCollector col = new FilteredElementCollector(doc);
                foreach (FamilyInstance item in collector)
                {
                    string str = "Host element: \n" + item.Name + "\n";
                    //碰撞检测，检测与结构梁碰撞的构件
                    ElementIntersectsElementFilter filter = new ElementIntersectsElementFilter(item);
                    col.WherePasses(filter);
                    if (col.Count() == 0)
                        continue;
    
                     str += "Sub element: " + "\n";
                    foreach (var c in col)
                    {
                        FamilyInstance curve = c as FamilyInstance;
                        if (curve == null)
                            continue;
                        str += c.Name + "\n";
                    }
                    MessageBox.Show(str, "信息");
                }          
                return Result.Succeeded;
            }
        }
    }

运行结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70 1][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70]: /images/20220225/6b6d9b566ee449adae735142870ab736.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70 1]: /images/20220225/7ce012d9fdea453cbd7bb96c5fdef363.png