Changes From Previous Edition

Changes From Previous Edition
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Table of Contents

Developer's Guide Enhancements

New Features of yFiles 2.6
General

This edition of the yFiles Developer's Guide relates to major version 2.6 of the yFiles graph visualization library.

Developer's Guide Enhancements

New Features of yFiles 2.6

yFiles Layout:

class IncrementalHierarchicLayouter: new support for hierarchically organized graphs when calculating swimlane layouts
new layout stage class TopLevelGroupToSwimlaneStage for IncrementalHierarchicLayouter that provides convenient support for setting up swimlane layouts
new special-purpose layout algorithm class FamilyTreeLayouter that provides genealogical tree layout for graphs that encode family trees
new uniform support for sorting child nodes across tree layouters.
classes OrganicLayouter and SmartOrganicLayouter: new support for elliptical group node shapes
class IncrementalHierarchicLayouter: new support for minimum size constraints for group nodes
class HierarchicGroupLayouter: new support for minimum size constraints for group nodes
classes OrganicLayouter and SmartOrganicLayouter: new support for minimum size constraints for group nodes
class IncrementalHierarchicLayouter: new support for constrained node sequencing

yFiles Viewer:

class HitInfo: takes into account visible elements only when collecting hit-testing information
class YLabel: new support for selection indication
class HotSpotMode: new node resizing policies that allow to keep a node's aspect ratio while resizing, for example
class HitInfo: uses the reverse of the rendering order as established by the graph renderer for traversing the graph elements when collecting hit-testing information
class Graph2DView: new content policies that enable taking into account further graphical elements of a graph, like, e.g., background drawables, when calculating the graph's bounding box
class GenericNodeRealizer: several new static inner interfaces that allow to provide implementations for auto bounds feature, size constraints (minimum and maximum sizes), label bounds change handler, and initialization logic for a configuration
new class NavigationComponent which provides user interface elements that enable convenient zoom in and zoom out operations on the view, and allow moving the view
new group node realizer implementation that bases on GenericNodeRealizer
class GenericNodeRealizer: many new predefined implementations for interface GenericNodeRealizer.Painter which provide a variety of different renderings for the visual representation of nodes
new class ModelViewManager that enables multiple views on a common model graph
class Graph2DView: provides a glass pane that can be used to create overlays
class HotSpotMode: allows to cancel node resizing
class DefaultGraph2DRenderer: supports collecting hit-testing information based on the reverse of the rendering order
class HotSpotMode: respects minimum size and maximum size constraints if such information is provided by node realizers that are resized
new interface SizeConstraintProvider allows specifying minimum size and maximum size constraints for the visual representation of nodes
class GroupLayoutConfigurator: new support for preparing minimum size constraints for group nodes
group node resizing respects minimum size and maximum size constraints
class Graph2DView: new support for rendering hints that are associated with the Graphics2D object which is used for the rendering operations

General

added new section for yEd Lite, a self-contained, complete source code demo that showcases nearly all features of the yFiles diagramming library
changed the term "general labeling" to "generic labeling"

yFiles Layout:

added new section for domain-specific layout algorithms that are tailored to deal with special-purpose applications
class HierarchicLayouter: added the actual Layerer implementations that are used for specific layering strategies
class HierarchicLayouter: enhanced the description of edge/port grouping support, regarding both setup and resulting edge routing behavior
clarified description of edge routing support for port candidates
reflected improved capabilities of generic labeling using the "free" label models
enhanced description of layout stage class ComponentLayouter
duplicated edge grouping section from HierarchicLayouter in IncrementalHierarchicLayouter's description of advanced layout features
moved description of IncrementalHierarchicLayouter's swimlane layout support to a more prominent place