protected override void OnPaint(PaintEventArgs e)
{
if (!suspended && init && !disposed && !Disposing && !IsDesigner)
{
device.BackgroundColor = BackColor;
device.OnSize(ClientSize);
view.EraseAll();
Point3d pt1 = extents.MinPoint;
Point3d pt2 = extents.MaxPoint;
Point3d ptm = new Point3d((pt1.X + pt2.X) / 2.0, (pt1.Y + pt2.Y) / 2.0, 0.0);
Point3d ptc = new Point3d(ptm.X, ptm.Y, 1.0);
double fw = Math.Abs(pt2.X - pt1.X);
double fh = Math.Abs(pt2.Y - pt1.Y);
view.SetView(ptc, ptm, Vector3d.YAxis, fw, fh);
foreach (Drawable item in items)
{
view.Add(item, model);
}
view.Update();
using (Bitmap bmp = view.GetSnapshot(ClientRectangle))
{
e.Graphics.DrawImageUnscaled(bmp, 0, 0);
}
if (m_Selected)
{
using (Pen pen = new Pen(m_SelectionColor, 2.0f))
{
Rectangle rec = ClientRectangle;
rec.Inflate(-2, -2);
e.Graphics.DrawRectangle(pen, rec);
}
}
}
}
public static Bitmap GetBitmap(Database db, ObjectIdCollection objIdColl)
{
using (db)
{
using (Transaction trans = db.TransactionManager.StartTransaction())
{
try
{
Manager manager = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.GraphicsManager;
Device device = manager.CreateAutoCADOffScreenDevice();
using (device)
{
device.OnSize(new System.Drawing.Size(100, 100));
Autodesk.AutoCAD.GraphicsSystem.Model model = manager.CreateAutoCADModel();
using (model)
{
double dMinX = 0, dMinY = 0, dMinZ = 0;
double dMaxX = 0, dMaxY = 0, dMaxZ = 0;
bool isUnstarted = true;
Autodesk.AutoCAD.GraphicsSystem.View view = new Autodesk.AutoCAD.GraphicsSystem.View();
foreach (ObjectId objId in objIdColl)
{
// será usado pra definir limites para criar bitmap
Entity ent = trans.GetObject(objId, OpenMode.ForWrite) as Entity;
//Min Point
if (ent.GeometricExtents.MinPoint.X < dMinX || isUnstarted)
{
dMinX = ent.GeometricExtents.MinPoint.X;
}
if (ent.GeometricExtents.MinPoint.Y < dMinY || isUnstarted)
{
dMinY = ent.GeometricExtents.MinPoint.Y;
}
if (ent.GeometricExtents.MinPoint.Z < dMinZ || isUnstarted)
{
dMinZ = ent.GeometricExtents.MinPoint.Z;
}
//Max Point
if (ent.GeometricExtents.MaxPoint.X > dMaxX || isUnstarted)
{
dMaxX = ent.GeometricExtents.MaxPoint.X;
}
if (ent.GeometricExtents.MaxPoint.Y > dMaxY || isUnstarted)
{
dMaxY = ent.GeometricExtents.MaxPoint.Y;
}
if (ent.GeometricExtents.MaxPoint.Z > dMaxZ || isUnstarted)
{
dMaxZ = ent.GeometricExtents.MaxPoint.Z;
}
isUnstarted = false;
view.Add(ent, model);
}
Point3d p3dLeftLower = new Point3d(dMinX, dMinY, dMinZ);
Point3d p3dRightTop = new Point3d(dMaxX, dMaxY, dMaxZ);
device.Add(view);
view.ZoomExtents(p3dLeftLower, p3dRightTop);
System.Drawing.Rectangle rect = new Rectangle();// view.Viewport;
return(view.GetSnapshot(rect));
}
}
}
catch (System.Exception ex)
{
trans.Abort();
return(null);
}
}
}
}
public BitmapImage GetBitmap()
{
//Suprimido pq tava dando fatal erro quando lia do bloco externo
//if (_bDbIsInExternalDWG)
// db.ReadDwgFile(ArCaRefMgrController.DBPath, FileShare.Read, true, "");
//else
try
{
Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
using (Database db = doc.Database)
{
using (Transaction trans = db.TransactionManager.StartTransaction())
{
try
{
Manager manager = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.GraphicsManager;
Device device = manager.CreateAutoCADOffScreenDevice();
using (device)
{
device.OnSize(new System.Drawing.Size(100, 100));
Autodesk.AutoCAD.GraphicsSystem.Model model = manager.CreateAutoCADModel();
using (model)
{
//Suprimido pq tava dando fatal erro quando lia do bloco externo
//if (rbWhite.IsChecked != true)
// device.BackgroundColor = System.Drawing.Color.Black;
//else
device.BackgroundColor = System.Drawing.Color.White;
double dMinX = 0, dMinY = 0, dMinZ = 0;
double dMaxX = 0, dMaxY = 0, dMaxZ = 0;
Boolean isUnstarted = true;
Autodesk.AutoCAD.GraphicsSystem.View view = new Autodesk.AutoCAD.GraphicsSystem.View();
ObjectIdCollection objIdColl2 = new ObjectIdCollection();
//As pitombas dos objectsId estao trocando de numero quando eu do Read no DWG, to tendo que lere os Ids no Bloco denovo
if (_bDbIsInExternalDWG)
{
using (Transaction tr = db.TransactionManager.StartTransaction())
{
BlockTable bt = tr.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockTableRecord btr = tr.GetObject(bt[_objBlockModNew.Name], OpenMode.ForRead) as BlockTableRecord;
foreach (ObjectId entId in btr)
{
objIdColl2.Add(entId);
}
}
}
else
{
objIdColl2 = objIdColl;
}
foreach (ObjectId objId in objIdColl2)
{
// será usado pra definir limites para criar bitmap
using (DocumentLock dl = doc.LockDocument())
{
Entity ent = trans.GetObject(objId, OpenMode.ForRead) as Entity;
//Min Point
if (ent.GeometricExtents.MinPoint.X < dMinX || isUnstarted)
{
dMinX = ent.GeometricExtents.MinPoint.X;
}
if (ent.GeometricExtents.MinPoint.Y < dMinY || isUnstarted)
{
dMinY = ent.GeometricExtents.MinPoint.Y;
}
if (ent.GeometricExtents.MinPoint.Z < dMinZ || isUnstarted)
{
dMinZ = ent.GeometricExtents.MinPoint.Z;
}
//Max Point
if (ent.GeometricExtents.MaxPoint.X > dMaxX || isUnstarted)
{
dMaxX = ent.GeometricExtents.MaxPoint.X;
}
if (ent.GeometricExtents.MaxPoint.Y > dMaxY || isUnstarted)
{
dMaxY = ent.GeometricExtents.MaxPoint.Y;
}
if (ent.GeometricExtents.MaxPoint.Z > dMaxZ || isUnstarted)
{
dMaxZ = ent.GeometricExtents.MaxPoint.Z;
}
isUnstarted = false;
view.Add(ent, model);
}
}
Point3d p3dLeftLower = new Point3d(dMinX, dMinY, dMinZ);
Point3d p3dRightTop = new Point3d(dMaxX, dMaxY, dMaxZ);
device.Add(view);
view.ZoomExtents(p3dLeftLower, p3dRightTop);
System.Drawing.Rectangle rect = new System.Drawing.Rectangle();// view.Viewport;
bmpPreview = view.GetSnapshot(rect);
return(ArCaUtils.GetBitmapImage(bmpPreview));
}
}
}
catch (System.Exception ex)
{
trans.Abort();
return(null);
}
}
}
}
catch (System.Exception ex)
{
return(null);
}
}