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);
}
}