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g6R 0.5.0

Potential breaking changes

Due to the new data validation for nodes, edges and combos, some existing code might break if the data provided to g6R functions is not valid. See the corresponding documentation section. If you had to pass custom data you can do it in the data slot.

New features and fixes

• Support for svg rendering:

g6_options(renderer = JS("() => new SVGRenderer()"))

• Fix issue which was preventing from removing a node from a combo.
• Layout is not recomputed when calling data proxy functions, except if options("g6R.layout_on_data_change" = TRUE). In the later case, the layout is recomputed after drawing.
• New option g6R.preserve_elements_position. If TRUE, and only if g6_options(animation = FALSE), the elements (nodes and combos) coordinates are preserved when updating the layout to avoid elements from jumping to new positions. Default is FALSE. A warning is raised if this option is TRUE and animation is TRUE to tell the user that the option will be ignored.
• New g6_update_layout() proxy function to order the layout re-execution and optionally update its parameters.
• New input[["<graph_ID>-mouse_position"]]: any click/right click or drag release event captures the mouse position. input[["<graph_ID>-mouse_position"]] contains the x and y coordinates of the mouse relative to the canvas. This is useful to add a node where the mouse was clicked, a context menu was triggered or the create edge was released on the canvas without a specific target.
• Elements selected via brush_select() or lasso_select() have a custom input handler. This may give:

input[["<graph_ID>-selected_combo"]]
[1] "1" "2"
attr(,"eventType")
[1] "brush_select"

Notice the extra attribute, which allows to make a difference between click_select() and brush_select() events.

• Get correct element type on click: it was possible that when clicking a combo, it appeared under input$<graph_ID>-selected_node instead of input$<graph_ID>-selected_combo.
• create_edge() behavior improved: when creating an edge and it is release on the canvas, the edge isn’t cancelled and data are available. We added a targetType property which allows to know where the edge was dropped.
• Added new elements API: g6_node(), g6_edge(), g6_combo() to create nodes, edges and combos respectively. We suggest to use them instead of passing lists or dataframes to g6 as they provide safety checks. We also added g6_nodes(), g6_edges() and g6_combos() which are internally used by some proxy functions like g6_add_nodes() to provide more flexibility.
• New options("g6R.mode) that can be dev or prod (default). In dev mode, Shiny notifications are displayed in the UI whenever a JavaScript error happens (they are still available in the JS console).
• g6_focus_elements(), g6_hide_elements() and g6_show_elements() gain more specific siblings: g6_focus_nodes(), g6_focus_edges(), g6_focus_combos(), g6_hide_nodes(), g6_hide_edges(), g6_hide_combos(), g6_show_nodes(), g6_show_edges(), g6_show_combos().
• brush_select(), lasso_select() and create_edge() gain an outputId parameter which allows to manually pass the Shiny output ID of the graph instance. This is useful when the graph is initialised outside the shiny render function and the ID cannot be automatically inferred with shiny::getCurrentOutputInfo(). This allows to set input values from the callback function with the right namespace and graph ID. You must typically pass session$ns("graphid") to ensure this also works in modules.
• Improvements to brush_select(): now it correctly returns the list of selected nodes, edges and combos, available via input$<graph_ID>-selected_node, input$<graph_ID>-selected_edge and input$<graph_ID>-selected_combo, thanks to the internal IDs refactoring. After a brush select operation, you can now shift click (depending on the click_select() multiple selection trigger settings you set, it might be another key) to add/remove elements to/from the current selection.
• lasso_select() also gets the same quality of life improvements.
• Fix: when selecting (simple select not multiselect) an edge/node/combo, if another type of element was selected, the corresponding input is reset. This avoids to accidentally delete a previously selected element when another type of element is selected.
• Fix: state never get set on first render.
• Fix #23: graph has to be re-rendered after dynamic plugin addition so that new elements like hull are drawn.
• Fix #22: internal typo in JS function when an error was caught in the graph.
• Add input$<graph_ID>-contextmenu to extract the type and id of element which was clicked in the context menu. This can be listened to from the Shiny server function.
• Fix layout and behavior issues in some examples: drag_element_force only works when animation is TRUE. Also added autoFit = TRUE wherever required (manual layout vignette).

g6R 0.1.0

• Initial CRAN submission.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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