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David Adams
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Exception: Incorrect geomentry drawing type in PdfExporter
Aug 6th, 2014 at 2:04pm
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I get the following exception using PdfExport. The file is created, but only includes the first node of the diagram.

System.Exception occurred
  HResult=-2146233088
  Message=Incorrect geomentry drawing type: System.Windows.Media.CombinedGeometry
  Source=MindFusion.Diagramming.Wpf.PdfExport
  StackTrace:
       at A.GQ.U(Geometry A, Transform B)
  InnerException:
  
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Stoyo
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Re: Exception: Incorrect geomentry drawing type in PdfExporter
Reply #1 - Aug 6th, 2014 at 2:13pm
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What kind of nodes are you exporting?
  
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David Adams
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Re: Exception: Incorrect geomentry drawing type in PdfExporter
Reply #2 - Aug 7th, 2014 at 8:45am
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I'm exporting ShapeNodes. It's based on the Tree Layout sample.
  
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Stoyo
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Re: Exception: Incorrect geomentry drawing type in PdfExporter
Reply #3 - Aug 7th, 2014 at 10:06am
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What should we add or change in TreeLayout project settings to reproduce the exception?
  
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David Adams
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Re: Exception: Incorrect geomentry drawing type in PdfExporter
Reply #4 - Sep 19th, 2014 at 1:51pm
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Hi,

Sorry it's been a while on this, was working on another project.

The following code has the Xaml and code-behind that produces the error. I've loaded the diagram using a diagram string that was saved from the diagram that has the error. Image Export works fine, just PDF that has an error.

XAML
Code (HTML)
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                <diag:Diagram Name="diagram" AlignToGrid="True" ShowGrid="True"
						  AllowDrop="True" Behavior="DrawLinks" GridSizeX="20" GridSizeY="20"
						  NodesExpandable="True"
                          NodeSelected="diagram_NodeSelected"
						  NodeClicked="diagram_NodeClicked"
						  NodeDeleting="diagram_NodeDeleting"
                          LinkCreated="diagram_LinkCreated"
                          LinkModified="diagram_LinkModified"
						  LinkModifying="diagram_LinkModifying"
						  LinkCreating="diagram_LinkCreating"
						  LinkSelecting="diagram_LinkSelecting"
						  NodeCreated="diagram_NodeCreated"
                          NodeModifying="diagram_NodeModifying"
                          NodeModified="diagram_NodeModified"
						  Drop="diagram_Drop"
						  Loaded="diagram_Loaded"
                          Clicked="diagram_Clicked"
						LinkHeadShapeSize="16">
                    <diag:Diagram.ShapeNodeStyle>
                        <Style TargetType="{x:Type diag:ShapeNode}">
                            <Setter Property="FontSize" Value="11" />
                            <Setter Property="Brush">
                                <Setter.Value>
                                    <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.8,1">
                                        <GradientStop Color="#FFAFBFDF" Offset="0" />
                                        <GradientStop Color="#FFEFEFFF" Offset="0.3" />
                                        <GradientStop Color="#FF8F9FBF" Offset="0.9" />
                                        <GradientStop Color="#FF6F7FAF" Offset="1" />
                                    </LinearGradientBrush>
                                </Setter.Value>
                            </Setter>
                        </Style>
                    </diag:Diagram.ShapeNodeStyle>
                    <diag:Diagram.BackBrush>
                        <LinearGradientBrush StartPoint="0.5, 0" EndPoint="0.8, 1">
                            <GradientStop Color="#FFDFDFDF" Offset="0" />
                            <GradientStop Color="#FFEFEFFF" Offset="0.3" />
                            <GradientStop Color="#FF8F9FBF" Offset="0.9" />
                            <GradientStop Color="#FF6F7FAF" Offset="1" />
                        </LinearGradientBrush>
                    </diag:Diagram.BackBrush>
                </diag:Diagram>


C#
Code (Java)
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public MyDiagramView()
{
            InitializeComponent();

            diagram.AllowDrop = true;
            diagram.DocumentPlane.AllowDrop = true;

            diagram.BackBrush = this.Background;
            diagram.NodeEffects.Add(new AeroEffect());

            diagram.LinkHeadShape = ArrowHeads.RevTriangle;
            diagram.LinkHeadShapeSize = 16;
            diagram.LoadFromString("+HBvg72n0mG7RITj4R0oR/AoAUGmwMvE7PVNtvJtLnPzR2NgaiJ2uhSOmEvyxIvej3JCzCbDfAo5+T/PRK3215wAAA==");
}

private void ExportPdfButton_Click(object sender, RoutedEventArgs e)
{
            SaveFileDialog dlg = new SaveFileDialog();
            dlg.FileName = "Diagram";
            dlg.DefaultExt = ".pdf";
            dlg.Filter = "PDF documents (.pdf)|*.pdf";

            Nullable<bool> result = dlg.ShowDialog();

            if (result == true)
            {
                // Save document
                string filename = dlg.FileName;
                PdfExporter exporter = new PdfExporter();
                exporter.Export(diagram, filename);
            }
}


Hopefully this is enough for you to reproduce the error.
  
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Stoyo
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Re: Exception: Incorrect geomentry drawing type in PdfExporter
Reply #5 - Sep 22nd, 2014 at 8:52am
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Hi,

Apparently we first started using the CombinedGeometry class for rendering AeroEffect, but never added support for it in our WPF visual tree to PDF conversion code. For time being you can export to PDF by temporarily removing the effect:

Code
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if (result == true)
{
	diagram.NodeEffects.Clear();

	// Save document
	string filename = dlg.FileName;
	PdfExporter exporter = new PdfExporter();
	exporter.Export(diagram, filename);

	diagram.NodeEffects.Add(new AeroEffect());
}


I hope that helps,
Stoyan
  
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David Adams
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Re: Exception: Incorrect geomentry drawing type in PdfExporter
Reply #6 - Sep 22nd, 2014 at 1:46pm
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That worked, thanks!
  
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