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43	43	=== Layout View[[url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/wiki/Projects/KIML#LayoutView||style="text-decoration: none;" title="Link to this section" shape="rect" class="anchor"]] ===
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45		-[[~[~[image:url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/raw-attachment/wiki/Projects/KIML/layout_view.png~]~]>>url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/attachment/wiki/Projects/KIML/layout_view.png||style="text-decoration: none;" shape="rect"]]The //Layout// view allows flexible customization of layout options for the selected objects in the diagram. If no object is selected, the view shows the options for the top-level container of the diagram. Options are stored persistently in the notation model of the diagram, so that they are still available after the next Eclipse restart. Of course this requires the diagram to be saved after an option was changed.
	45	+[[image:attach:layout_view.png]]
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	47	+The //Layout// view allows flexible customization of layout options for the selected objects in the diagram. If no object is selected, the view shows the options for the top-level container of the diagram. Options are stored persistently in the notation model of the diagram, so that they are still available after the next Eclipse restart. Of course this requires the diagram to be saved after an option was changed.
	48	+
47	47	The options are grouped according to the function of the selected objects. The group //Nodes// (respectively //Edges//, //Ports//, or //Labels//) contains options related to the object itself, such as its size or priority, while the group//Parents// contains options for the elements contained in the selected objects, such as the applied layout algorithm or the spacing between elements. Which layout options are displayed depends on the types of selected objects and the active layout algorithm, since such algorithms may not support all kinds of options. Furthermore, some options are only visible if the //Show Advanced Properties// button in the view toolbar is activated. The group types can be hidden using the //Show Categories// button.
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49	49	An option can be changed by selecting or entering a new value in the corresponding cell of the //Value// column. The most important option is //Layout Algorithm//, which is used to determine the layout algorithm for the contents of the selected element. Here either a specific layout algorithm or a layout type can be chosen; in the latter case, the most suitable layout algorithm of the given type is taken. By changing the active layout algorithm, the content of the layout view is updated to display only those options that are supported by the new layout algorithm.
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51	51	Selecting //Restore Default Value// in the context menu or the view toolbar removes any value for the currently selected option that is stored in the open model file, thus resetting the option to its default value. The view menu has an entry //Remove all Layout Options// which resets all options by removing persistent data in the model file.
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53		-[[~[~[image:url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/raw-attachment/wiki/Projects/KIML/context_menu.png~]~]>>url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/attachment/wiki/Projects/KIML/context_menu.png||style="text-decoration: none;" shape="rect"]]The context menu for a specific layout option has different alternatives to set the current value as default value: //Set as Default for this Diagram// changes the open model file so that the same value is applied to all similar objects of that model. //Set as Default for ... in this Context// applies the value to all similar objects that are displayed with the same diagram editor (the option is linked to the //edit part// class of the selected object). Choosing //Set as Default for all ...// links the option value with the domain model element or diagram type of the selected object (see Figure [[context_menu>>url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/attachment/wiki/Projects/KIML/context_menu.png||style="text-decoration: none;" title="Attachment 'context_menu.png' in Projects/KIML" shape="rect" class="attachment"]](% class="noprint" %) [[~[~[image:url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/chrome/common/download.png~]~]>>url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/raw-attachment/wiki/Projects/KIML/context_menu.png||style="text-decoration: none;" title="Download" shape="rect" class="trac-rawlink"]](%%)). These four alternatives have different priorities: if present, the default value for the current diagram is taken first, then the default value for the edit part is checked, then the default value for the domain model element, and then the default value for the diagram type.
	55	+[[image:attach:context_menu.png]]
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	57	+The context menu for a specific layout option has different alternatives to set the current value as default value: //Set as Default for this Diagram// changes the open model file so that the same value is applied to all similar objects of that model. //Set as Default for ... in this Context// applies the value to all similar objects that are displayed with the same diagram editor (the option is linked to the //edit part// class of the selected object). Choosing //Set as Default for all ...// links the option value with the domain model element or diagram type of the selected object (see Figure [[context_menu>>url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/attachment/wiki/Projects/KIML/context_menu.png||style="text-decoration: none;" title="Attachment 'context_menu.png' in Projects/KIML" shape="rect" class="attachment"]](% class="noprint" %) [[~[~[image:url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/chrome/common/download.png~]~]>>url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/raw-attachment/wiki/Projects/KIML/context_menu.png||style="text-decoration: none;" title="Download" shape="rect" class="trac-rawlink"]](%%)). These four alternatives have different priorities: if present, the default value for the current diagram is taken first, then the default value for the edit part is checked, then the default value for the domain model element, and then the default value for the diagram type.
	58	+
55	55	The information button of the view toolbar can be used to display some useful details on the current selection, such as the edit part and domain model classes.
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57	57	=== Preference Page[[url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/wiki/Projects/KIML#PreferencePage||style="text-decoration: none;" title="Link to this section" shape="rect" class="anchor"]] ===
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59		-[[~[~[image:url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/raw-attachment/wiki/Projects/KIML/preferences.png~]~]>>url:http://trac.rtsys.informatik.uni-kiel.de/trac/kieler/attachment/wiki/Projects/KIML/preferences.png||style="text-decoration: none;" shape="rect"]]If //Set routing style of all edges to oblique// is active, all routing styles and smoothness settings of edges are removed when automatic layout is performed. Since most layouters compute the routing of edges as part of their algorithm, these styles usually do not yield the expected results.
	63	+[[image:attach:preferences.png]]
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	65	+If //Set routing style of all edges to oblique// is active, all routing styles and smoothness settings of edges are removed when automatic layout is performed. Since most layouters compute the routing of edges as part of their algorithm, these styles usually do not yield the expected results.
	66	+
61	61	The //Default Layout Option Values// table is used to manage the default setting for layout options, which can also be modified with the context menu of the layout view (see above). All user-defined settings are displayed here, and the buttons on the right of the table serve to create, edit, and remove entries. The //Type// column shows the type of element the option is linked with: either //edit part//,//model element//, or //diagram type//. The //Element// column shows the class name for options that relate to edit parts or domain model elements, and the diagram type name for options that relate to diagram types. //Option// is the name of the layout option, and //Value// is the currently set value of the option.
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63	63	Creating a new entry requires the selection of the type of related element and entering its class name or identifier. Class names of edit parts and domain model elements can be explored using the information button of the layout view, while diagram type identifiers can be selected with the //Browse// button. After that, a layout option has to be selected from the list using the corresponding //Browse//button. Hitting //OK// creates an entry, and its value can then be set using the //Edit// button.

Confluence.Code.ConfluencePageClass[0]

Id

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1		-885086
	1	+885107

URL

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1		-https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/885086/Infrastructure for Meta Layout (KIML)
	1	+https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/KIELER/pages/885107/Infrastructure for Meta Layout (KIML)