DroidDiagram version 1.2 includes the following new features and improvements:

AnchorPattern improvements
~ The XUnit and YUnit properties allow specifying the coordinates of an AnchorPoint as a fixed offset from the node's top-left corner rather than in percentage, so that the point position does not change when the node is resized.
~ The AnchorPattern property of Shape class lets you associate anchor points with shape definitions. If a ShapeNode instance does not contain its own AnchorPattern, it will derive the one defined by the node's Shape.

Miscellaneous
~ Links can now snap to nodes from a distance when their AutoSnapToNode property is enabled. The maximum snap distance is specified via Diagram.AutoSnapDistance property. AutoSnapToNode supersedes the old SnapToNodeBorder property, which worked only for nodes under mouse pointer.
~ Type of Margin property of LinkLabel has been changed from float to Thickness.
~ The changeUnit method sets a new MeasureUnit and scales the coordinates of diagram items to keep them the same size.
~ Fixed node spacing in bottom-to-top TreeLayout.
~ Multiple-resize of rotated nodes fixed to apply same offsets in nodes' local coordinate system.
~ Fixed text layout in rotated nodes.
~ Improved layout of text components in CompositeNode.

If anyone is interested in trying the beta version, please download this archive containing updated jar file:
https://mindfusion.eu/_beta/DroidDiagram12.zip

Any comments, questions and general feedback are welcome.