Revit 二次开发 元素过滤练习

元素过滤Element Filter

　　图中计算过滤出所有型号为1200*1500mm，且标记为小于5的窗数量。识别并计算门窗总和。

• FilteredElementCollector的使用
• QuickFilter及SlowFilter
• ElementParameterFilter
• LogicalFilter

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB;
using Autodesk.Revit.ApplicationServices;
using Autodesk.Revit.Attributes;
using System.Windows.Forms;

namespace RevitDevTV
{
    /// <summary>
    /// 获取元素属性
    /// </summary>
    [TransactionAttribute(TransactionMode.Manual)]
    [RegenerationAttribute(RegenerationOption.Manual)]
    public class FiltersPractise : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            //FilteredElementCollector的使用
            UIDocument uiDoc = commandData.Application.ActiveUIDocument;
            //将UIDocument变为Document
            Document doc = uiDoc.Document;
            //收集document
            FilteredElementCollector collector = new FilteredElementCollector(doc);
            //QuickFilter过滤所有出窗
            collector=collector.OfCategory(BuiltInCategory.OST_Windows).OfClass(typeof(FamilySymbol));
            //FamilyInstanceFilter找1200*1500mm的窗
            var query = from element in collector where element.Name == "1200 * 1500 mm" select element;
            List<Autodesk.Revit.DB.Element> famSyms = query.ToList<Autodesk.Revit.DB.Element>();
            ElementId symbolId = famSyms[0].Id;
            FamilyInstanceFilter fiFilter = new FamilyInstanceFilter(doc,symbolId);
            FilteredElementCollector cl = new FilteredElementCollector(doc);
            ICollection<Element> found = cl.WherePasses(fiFilter).ToElements();
            // ElementParameterFilter找到标记小于5的窗
            ElementId ruleValId = new ElementId(-1001203);
            FilterRule fr = ParameterFilterRuleFactory.CreateLessRule(ruleValId,"5",true);
            ElementParameterFilter pFilter = new ElementParameterFilter(fr);
            FilteredElementCollector c2 = new FilteredElementCollector(doc);
            c2 = c2.OfCategory(BuiltInCategory.OST_Windows).WherePasses(fiFilter).WherePasses(pFilter);
            //LogicalOrFilter计算门窗总和
            ElementCategoryFilter doorFilter = new ElementCategoryFilter(BuiltInCategory.OST_Doors);
            ElementCategoryFilter windowFilter = new ElementCategoryFilter(BuiltInCategory.OST_Windows);
            LogicalOrFilter lFilter = new LogicalOrFilter(doorFilter, windowFilter);
            FilteredElementCollector c3 = new FilteredElementCollector(doc);
            ICollection<Element> fds = c3.OfClass(typeof(FamilyInstance)).WherePasses(lFilter).ToElements();
            // taskdialog输出结果
            TaskDialog.Show("查找","已找到型号为 1200*1500mm的推拉窗"+found.Count.ToString()+"个,"+"
"+"其中标记小于5的有"+c2.ToList().Count.ToString()+"个"+"
"+"门窗总和为："+fds.Count.ToString());
            return Result.Succeeded;
        }
    }
}

元素过滤Element Filter

使用ElementIntersectFilter进行冲突检查

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB;
using Autodesk.Revit.ApplicationServices;
using Autodesk.Revit.Attributes;
using System.Windows.Forms;
using Autodesk.Revit.UI.Selection;

namespace RevitDevTV
{
    /// <summary>
    /// 冲突检查
    /// </summary>
    [TransactionAttribute(TransactionMode.Manual)]
    [RegenerationAttribute(RegenerationOption.Manual)]
    public class Collision : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIDocument uiDoc = commandData.Application.ActiveUIDocument;
            Document doc = uiDoc.Document;
            Transaction trans = new Transaction(doc,"ExtComm");
            trans.Start();
            Selection select = uiDoc.Selection;
            Reference r = select.PickObject(ObjectType.Element,"选择需要检查的墙");
            Element column = doc.GetElement(r);
            FilteredElementCollector collector = new FilteredElementCollector(doc);
            //ElementIntersectFilter冲突检查
            ElementIntersectsElementFilter iFilter = new ElementIntersectsElementFilter(column,false);
            collector.WherePasses(iFilter);
            List<ElementId> excludes = new List<ElementId>();
            excludes.Add(column.Id);
            collector.Excluding(excludes);
            List<ElementId> ids = new List<ElementId>();
            select.SetElementIds(ids);
            foreach (Element elem in collector)
            {
                ids.Add(elem.Id);
            }
            select.SetElementIds(ids);
            trans.Commit();
            return Result.Succeeded;
        }
    }
}