//Get needed Viewport information
public static ViewportInfo[] SelectLockedViewportInfoOnLayout(
Document dwg, string layoutName)
{
List <ViewportInfo> lst = new List <ViewportInfo>();
TypedValue[] vals = new TypedValue[] {
new TypedValue((int)DxfCode.Start, "VIEWPORT"),
new TypedValue((int)DxfCode.LayoutName, layoutName)
};
PromptSelectionResult res =
dwg.Editor.SelectAll(new SelectionFilter(vals));
if (res.Status == PromptStatus.OK)
{
using (Transaction tran =
dwg.TransactionManager.StartTransaction())
{
foreach (ObjectId id in res.Value.GetObjectIds())
{
Viewport vport = (Viewport)tran.GetObject(
id, OpenMode.ForRead);
if (vport.Number != 1 && vport.Locked)
{
ViewportInfo vpInfo = new ViewportInfo();
vpInfo.ViewportId = id;
vpInfo.NonRectClipId = vport.NonRectClipEntityId;
if (!vport.NonRectClipEntityId.IsNull &&
vport.NonRectClipOn)
{
Polyline2d pl = (Polyline2d)tran.GetObject(
vport.NonRectClipEntityId, OpenMode.ForRead);
vpInfo.BoundaryInPaperSpace =
GetNonRectClipBoundary(pl, tran);
}
else
{
vpInfo.BoundaryInPaperSpace =
GetViewportBoundary(vport);
}
Matrix3d mt = PaperToModel(vport);
vpInfo.BoundaryInModelSpace =
TransformPaperSpacePointToModelSpace(
vpInfo.BoundaryInPaperSpace, mt);
lst.Add(vpInfo);
}
}
tran.Commit();
}
}
return(lst.ToArray());
}
public static ViewportInfo GetViewInfo(Viewport vport, Transaction tran)
{
ViewportInfo vpInfo = null;
if (vport == null)
{
Log4NetHelper.WriteInfoLog("视口放大太小，请放大到全视口选择实体。\n");
return(null);
}
Log4NetHelper.WriteInfoLog("视口的数字" + vport.Number + "\n");
if (vport.Number != 1 && vport.Locked)
{
vpInfo = new ViewportInfo();
vpInfo.ViewportId = vport.ObjectId;
vpInfo.NonRectClipId = vport.NonRectClipEntityId;
if (!vport.NonRectClipEntityId.IsNull &&
vport.NonRectClipOn)
{
Polyline2d pl = (Polyline2d)tran.GetObject(
vport.NonRectClipEntityId, OpenMode.ForRead);
vpInfo.BoundaryInPaperSpace =
GetNonRectClipBoundary(pl, tran);
}
else
{
vpInfo.BoundaryInPaperSpace =
GetViewportBoundary(vport);
}
Matrix3d mt = PaperToModel(vport);
vpInfo.BoundaryInModelSpace =
TransformPaperSpacePointToModelSpace(
vpInfo.BoundaryInPaperSpace, mt);
}
return(vpInfo);
}
