revit二次开发之批量旋转

批量旋转所使用的ISET<ElementId>中的元素是ElementInstance的Id，使用Family或FamilySymbol均不可以

 1 public static void SelectionFamily(Autodesk.Revit.DB.Document document,XYZ p1,double rotating, ISet<ElementId> elementIds)
 2 {
 3     Transaction transaction = new Transaction(document);
 4 
 5     transaction.Start("旋转");
 6 
 7     XYZ p2 = new XYZ(p1.X, p1.Y, 100);
 8 
 9     //创建旋转轴
10     Line line = Line.CreateBound(p1, p2);  
11 
12     foreach (ElementId id in elementIds)
13     {
14         FamilyInstanceFilter familyInstanceFilter = new FamilyInstanceFilter(document, id);
15         FilteredElementCollector elements = new FilteredElementCollector(document);
16         elements = elements.WherePasses(familyInstanceFilter);
17         elements.Distinct();
18         foreach (FamilyInstance element in elements)
19         {
20             ElementTransformUtils.RotateElement(document, element.Id, line, rotating);
21 
22         }
23 
24     }
25     transaction.Commit();
26 }

困扰我的最大问题就是旋转角度,测试了好几个小时终于在无意中发现使用的角度为弧度制;

public static double rotating(UIDocument uiDocument, double[] p1)
{
    MessageBox.Show("选择方向点");

    XYZ p2 = Grid(uiDocument);

　　//  此处P1获得的坐标被我换算成了mm，所以此处/304.8在换算成英尺，单位统一后计算
　　//Atan2是反三角函数，返回的是弧度制的角度
　　
    double angleOfLine = Math.Atan2(p2.Y-p1[1]/304.8,p2.X - p1[0]/304.8);

    return angleOfLine;

}