I had several problems with the implementation of a custom paginator to print the diagram in the past. I first used the DesiredSize of the documentplane, but it always resulted in a blurry print output.
Now, I use GetContentBounds(true,true) (which resolves the problem) and get lightly different sizes. Also setting the "for print" parameter to false or true differ in the result.
Why do I get different sizes from the DesiredSize of the DocumentPlane, GetContentBounds(false,true) and GetContentBounds(true,true) ?
What is the logical explanation?
The ratio between x/y is also sightly different, which leads me to the hypothese that the wrong aspect ratio leads the content of the diagram within the visualbrush to be rasterized by the WPF Print System, resulting in the blurry output.

MindFusionDiagram.GetContentBounds(true,true)
{-75,-75,2505.55905511811,1663.55905511811}
System.Windows.Rect
X/Y Ratio: 1.5061437388768980990586171679491

MindFusionDiagram.GetContentBounds(false,true)
{-58.5590551181102,-58.5590551181102,2489.11811023622,1647.11811023622}
System.Windows.Rect
X/Y Ratio:1.5111958849625211807392204841253


MindFusionDiagram.DocumentPlane.DesiredSize
{2502,1660}
System.Windows.Size
X/Y Ratio:1.5072289156626506024096385542169

Thanks for your reply.

In this case, shouldn't  MindFusionDiagram.DocumentPlane.DesiredSize and  MindFusionDiagram.GetContentBounds(false,true) be the exact same value?