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其實在revit裡是不存在分割族的概念。

對於基於線形的族，截面沿線都是一樣，要想達到分割的狀態，只需要把族基於線的那條線變短，然後再在分割點複製一個新的族即可。

過程是先獲得線的均分點，然後把族的線縮短，接著再複製族，即可變成均分的效果。主要方法見程式碼:

private void DevideFamilyInstance(FamilyInstance famIns,int n, Document revitDoc)
        {
            LocationCurve locationCurve = famIns.Location as LocationCurve;
            XYZ stratPoint = locationCurve.Curve.GetEndPoint(0);
            XYZ endPoint = locationCurve.Curve.GetEndPoint(1);

            IList<XYZ> devidePoint = InsertPoint(stratPoint, endPoint,n);

            Transaction transaction = new Transaction(revitDoc);
            transaction.Start("將族複製到相應位置");
            locationCurve.Curve = Line.CreateBound(stratPoint, devidePoint[0]);
            List<ElementId> list = new List<ElementId>();
            list.Add(famIns.Id);
            ICollection<ElementId> elementIds = list;
            for (int j=1;j<n;j++)
            {
                XYZ tanslation = new XYZ(devidePoint[j - 1].X - stratPoint.X, devidePoint[j - 1].Y - stratPoint.Y, devidePoint[j - 1].Z - stratPoint.Z);     
                ElementTransformUtils.CopyElements(revitDoc, elementIds, tanslation);
                
            }
            transaction.Commit();


        }
        private List<XYZ> InsertPoint(XYZ stratPoint, XYZ endPoint,int n)
        {
            List<XYZ> listPoint = new List<XYZ>();
            double x, y, z;
            for(int i=1;i<n;i++)
            {
                x = stratPoint.X+(endPoint.X- stratPoint.X)*i/n;
                y = stratPoint.Y + (endPoint.Y - stratPoint.Y) * i / n;
                z= stratPoint.Z + (endPoint.Z - stratPoint.Z) * i / n;
                XYZ point = new XYZ(x,y,z);
                listPoint.Add(point);
            }