(2.3.0) Notable changes:

• 👍 Edges only span the distance between vertex boundaries (instead of centers). This yields a nicer visualization when vertices are made transparent.

(2.2.0) Notable changes:

• ⚠️ Bump minimum JDK to 11 and define library as a Java Module;
• 👍 Robust algorithm for vertex spawning;
• Propagation of hover events to labels and arrows (can be styled);
• 🎉 Improve edge readability (issue #43) by changing the label underlying representation to a StackPane. Labels now accept CSS styles for Pane (background) and Text (the label itself).
• ⚠️ Fixed a regression that affected the movement of vertices.
• Other small fixes and improvements.

(2.1.0) Notable changes:

• Improved edge and label rendering;

  • Fix arrow "z-order" placement in some situations.
  • Fix arrow misalignment on self-loops (issue #40).
  • Fix parallel edge spacing (issue #40).
  • Parallel edge spacing, including self-loops, is kept as compact as possible when inserting/removing, without loosing visual reference.

• Fix visibility of methods necessary to create custom placement strategies.

• Improved ContentZoomScrollPane with clipping of any overflow.

  • Bring vertex and label to front, while dragging.

(2.0.0) 🎉 Minor fixes and stable version release.

(2.0.0-rc2) Several minor improvements, including:

• Example on how to use a background image for a vertex, see issue #34.

• Styles applied to edges are propagated to their respective arrows, see issue #31.

(2.0.0-rc1) Shapes, sizes, providers, annotations and minor improvements:

• Different shapes can be used to represent vertices, namely circles, stars and regular polygons (from triangles to dodecagons);

  • The default shape can be specified with the vertex.shape property in smartgraph.properties
  • Can be set/changed at runtime through a SmartShapeTypeProvider or SmartShapeTypeSource annotation.

• The radius of the shape (enclosing circle) used to represent a vertex can be set/changed at runtime through a SmartRadiusProvider or SmartRadiusSource annotation.

• Updated shapes and radii are only reflected in the visualization after calling SmartGraphPanel.update() or SmartGraphPanel.updateAndWait().

• Improvements:

  • When dragging nodes, they will be kept within the panel's bounds.
  • The look of curved edges has been improved.

(1.1.0) Automatic layout is now performed through an instantiated strategy. There are two available (but the pattern allows for the user to devise others):

• ForceDirectedSpringSystemLayoutStrategy: this is the original implementation for the automatic placement, through a spring system;
• ForceDirectedSpringGravityLayoutStrategy: (new) this is a variant of the spring system implementation, but with a gravity pull towards the center of the panel. This is now the default strategy and has the advantage of not repelling isolated vertices and/or bipartite graphs to the edges of the panel.

(1.0.0) Package now available through Maven Central. The library seems stable, after dozens of college projects of my students have used it. Hence, the version was bumped to 1.0.0.

(0.9.4) You can now annotate a method with @SmartLabelSource within a model class to provide the displayed label for a vertex/edge; see the example at com.brunomnsilva.smartgraph.examples.cities. If no annotation is present, then the toString() method is used to obtain the label's text.

(0.9.4) You can manually alter a vertex position on the panel at anytime, through SmartGraphPanel.setVertexPosition(Vertex<V> v); see the example at com.brunomnsilva.smartgraph.examples.cities.

(0.9.4) You can override specific default properties by using a String parameter to the SmartGraphProperties constructor; see the example at com.brunomnsilva.smartgraph.examples.cities. This is useful if you want to display visually different graphs within the same application.

(0.9.4) You can now style labels and arrows individually.