How can I save my Diagram as a bitmap?
How can I save my Diagram as a bitmap?
The following code sample shows how you can export your diagram as an image such as a bitmap:
[C#]
// Cache the view's current origin and size PointF vieworigin = this.diagram1.View.Origin; Size viewsize = this.diagram1.View.Size;
// Set the view''s origin and size to // encompass the whole diagram this.diagram1.View.Origin = new PointF(0, 0); this.diagram1.View.Size = new Size((int)this.diagram1.Model.Width, (int)this.diagram1.Model.Height);
// Create a Bitmap equal to the model // dimensions and create a Graphics object // from the image Bitmap diagramimage = new Bitmap((int)this.diagram1.Model.Width, (int)this.diagram1.Model.Height); Graphics bmpgrfx = Graphics.FromImage(diagramimage);
// Draw the Diagram.View''s contents onto // the Image Graphics object this.diagram1.View.Draw(bmpgrfx); bmpgrfx.Dispose();
// The diagramimage is now a full rendering // of the Diagram contents and can be used // in any format diagramimage.Save("C:\\mydiagram.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
// Restore the View''s origin and size this.diagram1.View.Origin = vieworigin; this.diagram1.View.Size = viewsize;
[VB.NET]
' Cache the view's current origin and size Dim vieworigin As PointF = Me.diagram1.View.Origin Dim viewsize As Size = Me.diagram1.View.Size ' Set the view''s origin and size to ' encompass the whole diagram Me.diagram1.View.Origin = New PointF(0, 0) Me.diagram1.View.Size = New Size(CType(Me.diagram1.Model.Width, CType(Me.diagram1.Model.Height, int, Integer))) ' Create a Bitmap equal to the model ' dimensions and create a Graphics object ' from the image Dim diagramimage As Bitmap = New Bitmap(CType(Me.diagram1.Model.Width,CType(Me.diagram1.Model.Height, int, Integer))) Dim bmpgrfx As Graphics = Graphics.FromImage(diagramimage) ' Draw the Diagram.View''s contents onto ' the Image Graphics object Me.diagram1.View.Draw(bmpgrfx) bmpgrfx.Dispose() ' The diagramimage is now a full rendering ' of the Diagram contents and can be used ' in any format diagramimage.Save("C:\\mydiagram.bmp", System.Drawing.Imaging.ImageFormat.Bmp) ' Restore the View''s origin and size Me.diagram1.View.Origin = vieworigin Me.diagram1.View.Size = viewsize
Conclusion
I hope you enjoyed learning about how you can save your Diagram as a bitmap.
You can refer to WinForms Diagram feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our WinForms Diagram example to understand how to create and manipulate data.
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