Teigha中實體旋轉 代碼： using (var trans = database.TransactionManager.StartTransaction()) { Entity ent = trans.GetObject(entityId, OpenMode.ForWrite) asEntit ...
Teigha中實體旋轉
代碼：
using (var trans = database.TransactionManager.StartTransaction())
{
Entity ent = trans.GetObject(entityId, OpenMode.ForWrite) asEntity;
if (ent != null )
{
Extents3d exts = ent.GeometricExtents;
Point3d poCenter = newPoint3d((exts.MinPoint.X + exts.MaxPoint.X) / 2, (exts.MinPoint.Y + exts.MaxPoint.Y) / 2, 0);
Matrix3d Matr4 = Matrix3d.Rotation((30 * Math.PI / 180),Vector3d.ZAxis, poCenter);
ent.TransformBy(Matr4);
}
trans.Commit();
}
//以實體的外接矩形的中心點為圓心旋轉30度。
Teigha中跳轉至顯示視圖跳轉到某點，並以此為圓心顯示內容
代碼：
using (var trans = database.TransactionManager.StartTransaction())
{
Point3d EndPoint=new Point3d(0,0,0);
using (Teigha.GraphicsSystem.View pView = helperDevice.ActiveView)
{
pView.Dolly(EndPoint.X - pView.Position.X, EndPoint.Y - pView.Position.Y, 0);
}
trans.Commit();
}
if (helperDevice != null)
helperDevice.Update();
Invalidate();
Teigha 窗體內容的旋轉
代碼：
if (helperDevice != null)
{
using (Teigha.GraphicsSystem.View pView = BaseF.helperDevice.ActiveView)
{
//2為指定的角度
pView.Roll(2 * Math.PI / 180);
Invalidate();
}
helperDevice.Update();
helperDevice.Invalidate();
}
Invalidate();
Teigha 直接將塊中內容導入其他塊中（適用於不同dwg文件的導入）
代碼：
Database databa = newDatabase(false, false);
databa.ReadDwgFile(@"C:\Users\admin\Desktop\安裝略圖.dwg", FileOpenMode.OpenForReadAndAllShare, false, "");
using (var trans = database.TransactionManager.StartTransaction())
{
BlockTable block = database.BlockTableId.GetObject(OpenMode.ForWrite) asBlockTable;
using (var tran = databa.TransactionManager.StartTransaction())
{
BlockTable blockold = databa.BlockTableId.GetObject(OpenMode.ForWrite) asBlockTable;
database.Insert("需要導入的塊名稱", databa, false);
database.Insert( "需要導入的塊名稱"，“重新創建一個新的名字”, databa, false);
}
trans.Commit();
}
Teigha 獲取文檔中包含的字體樣式（主要用於電腦不包含CAD字體時）
//修改字體後需要刷新內容，最好是來回切換佈局！
代碼：
List<string> StrList = newList<string>();
using (var trans = BaseF.database.TransactionManager.StartTransaction())
{
using (TextStyleTable txtstyles = (TextStyleTable)trans.GetObject(BaseF.database.TextStyleTableId, OpenMode.ForRead))
{
string exCADlow = “.eot,.eot,.otf,.fon,.font,.ttf,.ttc,.woff,.woff2,.shx”；
foreach (ObjectId item in txtstyles)
{
using (TextStyleTableRecord txtse = (TextStyleTableRecord)trans.GetObject(item, OpenMode.ForRead))
{
if (exCADlow.Contains(Path.GetExtension(txtse.FileName).ToLower()) && Path.GetExtension(txtse.FileName).ToLower() != "")
{
StrList.Add(txtse.FileName);
}
}
}
}
Teigha 實現移動視圖的效果
//根據按下和移動時的滑鼠坐標移動窗體顯示的CAD內容
代碼：
///<summary>
///移動視圖
///</summary>
///<param name="PoMove"></param>
privatevoid Viewer_UDLR(Point PoMove)
{
double dx = -(PoMove.X - MouseDowns.X);
double dy = -(PoMove.Y - MouseDowns.Y);
MouseDowns = PoMove;
using (DBObject pVpObj = Aux.active_viewport_id(database).GetObject(OpenMode.ForWrite))
{
AbstractViewportData pAVD = newAbstractViewportData(pVpObj);
Teigha.GraphicsSystem.View pView = pAVD.GsView;
Vector3d vec = newVector3d(dx, dy, 0.0);
vec = vec.TransformBy((pView.ScreenMatrix * pView.ProjectionMatrix).Inverse());
pView.Dolly(vec);
pAVD.SetView(pView);
pAVD.Dispose();
pVpObj.Dispose();
Invalidate();
}
}
Teigha 移動實體所在位置
代碼：
///<summary>
///移動實體
///</summary>
///<param name="PoMove"></param>
privatevoid MoverEntity_view(Point PoMove)
{
Point3d Podown1 = toEyeToWorld(MouseDowns.X, MouseDowns.Y);
Point3d Pomove1= toEyeToWorld(PoMove.X, PoMove.Y);
double dx = Pomove1.X - Podown1.X;
double dy = Pomove1.Y - Podown1.Y;
MouseDowns = PoMove;
List<ObjectId> Listitem = newList<ObjectId>();
using (var trans = database.TransactionManager.StartTransaction())
{
foreach (ObjectId item in SelectID)
{
if (Listitem.FindIndex(s1 => s1 == item) == -1)
{
Listitem.Add(item);
using (Entity Ent = item.GetObject(OpenMode.ForWrite) asEntity)
{
PoDowns = newPoint3d(PoDowns.X + dx, PoDowns.Y + dy,0);
Point3d Pointnew = newPoint3d(dx, dy, 0);
Matrix3d mat = Matrix3d.Displacement(Pointnew.GetAsVector());
Ent.TransformBy(mat);
}
}
}
trans.Commit();
}
Listitem.Clear();
if (helperDevice != null)
helperDevice.Update();
