private void zoomDb(Autodesk.AutoCAD.DatabaseServices.Database db, Extents3d ext)
{
using (var switcher = new AcadLib.WorkingDatabaseSwitcher(db))
{
//db.UpdateExt(true);
using (ViewportTable vTab = db.ViewportTableId.GetObject(OpenMode.ForRead) as ViewportTable)
{
ObjectId acVptId = vTab["*Active"];
using (ViewportTableRecord vpTabRec = acVptId.GetObject(OpenMode.ForWrite) as ViewportTableRecord)
{
double scrRatio = (vpTabRec.Width / vpTabRec.Height);
//Matrix3d matWCS2DCS = Matrix3d.PlaneToWorld(vpTabRec.ViewDirection);
//matWCS2DCS = Matrix3d.Displacement(vpTabRec.Target - Point3d.Origin) * matWCS2DCS;
//matWCS2DCS = Matrix3d.Rotation(-vpTabRec.ViewTwist,
// vpTabRec.ViewDirection,
// vpTabRec.Target)
// * matWCS2DCS;
//matWCS2DCS = matWCS2DCS.Inverse();
//Extents3d extents = new Extents3d(db.Extmin, db.Extmax);
//extents.TransformBy(matWCS2DCS);
//double width = (extents.MaxPoint.X - extents.MinPoint.X);
//double height = (extents.MaxPoint.Y - extents.MinPoint.Y);
//Point2d center = new Point2d((extents.MaxPoint.X + extents.MinPoint.X) * 0.5,
// (extents.MaxPoint.Y + extents.MinPoint.Y) * 0.5);
double width = (ext.MaxPoint.X - ext.MinPoint.X);
double height = (ext.MaxPoint.Y - ext.MinPoint.Y);
if (width > (height * scrRatio))
{
height = width / scrRatio;
}
vpTabRec.Height = ext.MaxPoint.Y - ext.MinPoint.Y;
vpTabRec.Width = height * scrRatio;
vpTabRec.CenterPoint = ext.Center().Convert2d();
}
}
}
}