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144	144	The interaction with the diagram editor or viewer is handled by //layout managers//, represented by [[IDiagramLayoutManager>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml.service/src/de/cau/cs/kieler/kiml/service/IDiagramLayoutManager.java||shape="rect"]] implementations, explained with more detail below.
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146		-The configuration of automatic layout is done by the [[LayoutOptionManager>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml.service/src/de/cau/cs/kieler/kiml/service/LayoutOptionManager.java||shape="rect"]], which iterates over all graph elements and applies a set of layout configurators, represented by the interface [[ILayoutConfig>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml/src/de/cau/cs/kieler/kiml/config/ILayoutConfig.java||shape="rect"]]. Layout configurators analyze the context of each graph element and set specific values for some layout options. More information on layout configuration is available on [[doc:Kieler.Discontinued Projects.Infrastructure for Meta Layout (KIML).Configuring Automatic Layout.WebHome]].
	146	+The configuration of automatic layout is done by the [[LayoutOptionManager>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml.service/src/de/cau/cs/kieler/kiml/service/LayoutOptionManager.java||shape="rect"]], which iterates over all graph elements and applies a set of layout configurators, represented by the interface [[ILayoutConfig>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml/src/de/cau/cs/kieler/kiml/config/ILayoutConfig.java||shape="rect"]]. Layout configurators analyze the context of each graph element and set specific values for some layout options. More information on layout configuration is available on [[doc:KIELER.Discontinued Projects.Infrastructure for Meta Layout (KIML).Configuring Automatic Layout.WebHome]].
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148	148	Hierarchically structured graphs are handled by the [[RecursiveGraphLayoutEngine>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml/src/de/cau/cs/kieler/kiml/RecursiveGraphLayoutEngine.java||shape="rect"]], which executes layout algorithms separately on each hierarchy level, starting with the innermost levels. The actual layout computations are performed by subclasses of [[AbstractLayoutProvider>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml/src/de/cau/cs/kieler/kiml/AbstractLayoutProvider.java||shape="rect"]], which are registered with the {{code language="none"}}layoutProviders{{/code}} extension point.
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177	177	Each diagram layout manager must be able to map the graph structure of its supported diagram viewers to the [[KGraph>>doc:Kieler.Discontinued Projects.Infrastructure for Meta Layout (KIML).KGraph Meta Model.WebHome]] format using the {{code language="none"}}buildLayoutGraph({{/code}}…{{code language="none"}}){{/code}} method. The result is stored in a [[LayoutMapping>>url:http://rtsys.informatik.uni-kiel.de/fisheye/browse/kieler-pragmatics/plugins/de.cau.cs.kieler.kiml.service/src/de/cau/cs/kieler/kiml/service/LayoutMapping.java||shape="rect"]], which stores a bidirectional map between graph elements and diagram elements and can be enriched with additional information. Such information is often required when the new computed layout is applied back to the diagram, which is done with {{code language="none"}}applyLayout({{/code}}…{{code language="none"}}){{/code}}. This method is also responsible for applying animation of the transition between the old layout and the new layout and for automatic zooming, if requested.
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179		-(% style="line-height: 1.4285715;" %)There are many ways to customize the configuration of graphs created by layout managers. These are documented in [[doc:Kieler.Discontinued Projects.Infrastructure for Meta Layout (KIML).Configuring Automatic Layout.WebHome]].
	179	+(% style="line-height: 1.4285715;" %)There are many ways to customize the configuration of graphs created by layout managers. These are documented in [[doc:KIELER.Discontinued Projects.Infrastructure for Meta Layout (KIML).Configuring Automatic Layout.WebHome]].