这段时间工作有一个新的想法，就是怎样子去操控轴网的编号显示还是隐藏，如下图。花了点时间研究了一番，发现Revit是有提供对应的API给我们去控制的，下面给大家详细讲讲，Just Do It~~~  显示编号方法
 里面需要传入两个参数，DatuEnds是一个枚举值，枚举值中的参数对应修改的位置，选择是起点还是终点。View参数对应的是需要显示编号的视图。
隐藏编号方法
 里面的参数和显示编号的参数是一样的，这里不多加赘述。 基本的API就是上面这些，只要是DatumPlane下面的子类都有这个方法，说明标高也可以有同样的方法可以去使用。下面我给大家一个例子，框选关闭轴网编号。
[Transaction(TransactionMode.Manual)]
public class ShowAndCloseGridNumberCmd : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
UIDocument uidoc = commandData.Application.ActiveUIDocument;
Document doc = uidoc.Document;
PickedBox pickBox = null;
try
{
pickBox = uidoc.Selection.PickBox(Autodesk.Revit.UI.Selection.PickBoxStyle.Directional);
}
catch { return Result.Succeeded; }
//请框选需要打开或者关闭的标高符号
//投影到视图中
XYZ maxPoint = pickBox.Max;
XYZ minPoint = pickBox.Min;
//极值
double minX = Math.Min(minPoint.X, maxPoint.X);
double maxX = Math.Max(minPoint.X, maxPoint.X);
double minY = Math.Min(minPoint.Y, maxPoint.Y);
double maxY = Math.Max(minPoint.Y, maxPoint.Y);
List pointList = TwoPointGetPointList(new XYZ(minX, minY,0), new XYZ(maxX, maxY, 0));
List gridList = new FilteredElementCollector(doc, uidoc.ActiveGraphicalView.Id).OfClass(typeof(Grid)).OfType().ToList();
Transaction trans = new Transaction(doc, "显示或者关闭轴号");
trans.Start();
foreach (var grid in gridList)
{
Curve c = grid.Curve;
if (IsInPolygon(c.GetEndPoint(0).SetZ(),pointList))
{
SetGridBubbleVisible(grid, uidoc.ActiveGraphicalView, DatumEnds.End0);
}
else if (IsInPolygon(c.GetEndPoint(1).SetZ(), pointList))
{
SetGridBubbleVisible(grid, uidoc.ActiveGraphicalView, DatumEnds.End0);
}
}
trans.Commit();
return Result.Succeeded;
}
public void SetGridBubbleVisible(Grid grid,View view,DatumEnds ends)
{
bool visible = grid.IsBubbleVisibleInView(ends, view);
if (visible)
{
grid.HideBubbleInView(ends, view);
}
else
{
grid.ShowBubbleInView(ends, view);
}
}
public List TwoPointGetPointList(XYZ minPoint,XYZ maxPoint)
{
List result = new List();
try
{
XYZ p1 = minPoint;
XYZ p3 = maxPoint;
XYZ p2 = new XYZ(maxPoint.X, minPoint.Y, 0);
XYZ p4 = new XYZ(minPoint.X, maxPoint.Y, 0);
result.Add(p1);
result.Add(p2);
result.Add(p3);
result.Add(p4);
}
catch
{
System.Windows.Forms.MessageBox.Show("框选轮廓过小，无法判别");
result = new List();
}
return result;
}
public bool IsInPolygon(XYZ checkPoint, List polygonPoints)
{
bool inSide = false;
int pointCount = polygonPoints.Count;
XYZ p1, p2;
for (int i = 0, j = pointCount - 1;
i |