Civil 3D 2013新API -- 创建空间几何点(COGO Point)

Civil 3D 2013 .net API中新引入了空间几何点相关的API，我们可以创建、修改、删除空间几何点。 类CogoPointCollection表示所有空间几何点的集合，这个类可以通过CivilApplication.ActiveDocument.CogoPoints得到。创建新的COGOPoint，调用CogoPointCollection.Add（）方法即可。下面是一个代码片段：

[CommandMethod("CreateCOGOPoint")]
public void CreateCOGOPoint()
{
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
Database db = ed.Document.Database;
CivilDocument civilDoc = CivilApplication.ActiveDocument;

// Select the location for COGO Point
PromptPointOptions ppo = new PromptPointOptions("\nSelect the location to Create a COGO Point :");
PromptPointResult ppr = ed.GetPoint(ppo);

if (ppr.Status != PromptStatus.OK)
return;
Point3d location = ppr.Value;

//start a transaction
using (Transaction trans = db.TransactionManager.StartTransaction())
{

// All points in a document are held in a CogoPointCollection object
// We can access CogoPointCollection through the CivilDocument.CogoPoints property

CogoPointCollection cogoPoints = CivilApplication.ActiveDocument.CogoPoints;

// Adds a new CogoPoint at the given location with the specified description information
ObjectId pointId = cogoPoints.Add(location, "Survey Point");
CogoPoint cogoPoint = pointId.GetObject(OpenMode.ForWrite) as CogoPoint;

// Set Some Properties
cogoPoint.PointName = "Survey_Base_Point";
cogoPoint.RawDescription = "This is Survey Base Point";

trans.Commit();

}
}

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运行结果：