private void BuildDocExtentOptions() { Document document = AfaDocData.ActiveDocData.Document; this.DocExtentOptions = new Dictionary <string, Extent>(); this.DefaultExtent = new Extent(0.0, 0.0, 100.0, 100.0); this.DefaultExtent.SetWKTFrom(AfaDocData.ActiveDocData.DocPRJ.WKT); if (DocUtil.HasLimits(AfaDocData.ActiveDocData.Document)) { this.DocExtentOptions.Add(AfaStrings.DrawingLimits, DocUtil.GetLimitExtent(document)); } Extent dwgExtent = DocUtil.GetDwgExtent(document); if (dwgExtent != null) { this.DocExtentOptions.Add(AfaStrings.DrawingExtents, DocUtil.GetDwgExtent(document)); } Extent viewExtent = DocUtil.GetViewExtent(document); this.DocExtentOptions.Add(AfaStrings.CurrentView, viewExtent); this.DocExtentOptions.Add(AfaStrings.SelectCorners, this.DefaultExtent); }