private void btn_adjust_road_start_Click(object sender, EventArgs e)
{
Editor ed = cadSer.Application.DocumentManager.MdiActiveDocument.Editor;
Database db = HostApplicationServices.WorkingDatabase;
var middoc = cadSer.Application.DocumentManager.MdiActiveDocument;
ObjectId plineID = ed.GetEntity(new PromptEntityOptions("\n选取多段线!!!")).ObjectId;
var doc_lock = middoc.LockDocument();
DBObject dbo;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
dbo = trans.GetObject(plineID, OpenMode.ForWrite);
while (!dbo.GetType().Equals(typeof(Polyline)))
{
ed.WriteMessage("\n刚才选取的不是Pline,请重新选择!!!");
plineID = ed.GetEntity(new PromptEntityOptions("\n选取多段线!!!")).ObjectId;
dbo = trans.GetObject(plineID, OpenMode.ForWrite);
}
Point3d poindstart = ed.GetPoint(new PromptPointOptions("\n选取起点")).Value;
Polyline polyline = (Polyline)dbo;
Vector3d tmp_vector = polyline.StartPoint.GetAsVector() - poindstart.GetAsVector();
tmp_vector = new Vector3d(tmp_vector.X, tmp_vector.Y, 0);
if (tmp_vector.Length > 1.0)
{
polyline.ReverseCurve();
zjyCAD.ToModelSpace(polyline, db);
}
trans.Commit();
}
doc_lock.Dispose();
}