How To Convert Diagram Node To Any Image
29 Feb 2016 / 2 minutes to read
To export a single node as an image, use the below code snippet.
Node selectedNode = this.diagram1.Controller.SelectionList[0];
if (selectedNode != null)
{
//Node size depends on the border line. So we have to calculate the Line width also.
Bitmap bmp = new Bitmap(Convert.ToInt32(selectedNode.Size.Width + selectedNode.LineStyle.LineWidth),
Convert.ToInt32(selectedNode.Size.Height + selectedNode.LineStyle.LineWidth));
using (Graphics gr = Graphics.FromImage(bmp))
{
System.Drawing.Drawing2D.Matrix m = new System.Drawing.Drawing2D.Matrix();
m.Translate(Convert.ToInt32(-selectedNode.BoundingRectangle.Left), Convert.ToInt32(-selectedNode.BoundingRectangle.Top));
gr.Transform = m;
//This will render the node image in a graphics surface and we can export it easily to any type of image.
selectedNode.Draw(gr);
bmp.Save("image.png", System.Drawing.Imaging.ImageFormat.Png);
Process.Start("image.png");
}
}
Dim selectedNode As Syncfusion.Windows.Forms.Diagram.Node = Me.Diagram1.Controller.SelectionList(0)
If selectedNode IsNot Nothing Then
'Node size depends on the border line. So we have to calculate the Line width also.
Dim bmp As New Bitmap(Convert.ToInt32(selectedNode.Size.Width + selectedNode.LineStyle.LineWidth), Convert.ToInt32(selectedNode.Size.Height + selectedNode.LineStyle.LineWidth))
Using gr As Graphics = Graphics.FromImage(bmp)
Dim m As New System.Drawing.Drawing2D.Matrix()
m.Translate(Convert.ToInt32(-selectedNode.BoundingRectangle.Left), Convert.ToInt32(-selectedNode.BoundingRectangle.Top))
gr.Transform = m
'This will render the node image in a graphics surface and we can export it easily to any type of image.
selectedNode.Draw(gr)
bmp.Save("image.png", System.Drawing.Imaging.ImageFormat.Png)
Process.Start("image.png")
End Using
End If
Was this page helpful?
Yes
No
Thank you for your feedback!
Thank you for your feedback and comments. We will rectify this as soon as possible!
An unknown error has occurred. Please try again.
Help us improve this page