Using the Designer > Using More Designer Features > Changing Layout Parameters

Open the genealogy example which you created in Getting Started by choosing File>Open and selecting the appropriate project file if it is not already open. There is also a version supplied as <installdir>/jviews-diagrammer81/bin/designer/data/examples/genealogy.idpr.

Note
You can only use File>Open to open project files, not any other type of file.

The diagram for this example is laid out according to a Graph Layout algorithm.

Graph Layout algorithms can be customized by setting various parameters. These appear in the Styling Customizer for the Graph Layout option. This customizer also gives you access to a wizard for selecting an appropriate layout theme. A layout theme is effectively a set of parameter settings applied to a specific graph layout.

Graph Layout algorithms have many parameters, but you do not usually need to vary many of them to obtain the required results.