Cleaner hover tooltips: Removed redundant "Type: WBS", "Type: Activity", and "Type: Milestone" lines from all hover popups. The chart element type is already visually apparent from bar shape and color.
Bold tooltip labels: All field labels in hover popups are now bold
for improved scanability — applies to both built-in fields (Start, End, Duration,
Variance, Date) and user-provided custom fields via tooltip_config.
Variance spacing: Added a blank separator line after the Variance row in activity tooltips that show both planned and actual bars, visually separating the core date fields from any custom tooltip fields that follow.
X-axis position control: New xaxis_position key in layout_config lets
users place the time axis at "bottom" (default), "top", or "both". Use
"top" to keep the date axis visible when scrolling through long charts, or
"both" to show tick labels on both edges simultaneously.
Updated tooltip_config parameter description: removed stale mention of "Type"
from the list of default tooltip fields.
Extended @examples to demonstrate tooltip_config$milestone — showing how to
add a custom column to milestone_lines and display it in hover tooltips.
hoverinfo = "skip" — changed to show the same full tooltip (planned + actual
dates) as the planned bar.tooltip_config now supports named character vectors
to set friendly display labels for custom tooltip fields. Use
c(column_name = "Display Label") instead of c("column_name") to control what
label appears in the hover tooltip. Unnamed elements continue to use the column name
as the label (fully backward-compatible).Milestone line hover now works along the full line height: Previously, hover tooltips on single-date milestone vertical lines only triggered near the top or bottom endpoints. The hover mechanism is now a separate invisible marker trace distributed along the full height of the line, making the hover responsive anywhere along the line. Applied to both single-date vertical lines and narrow date-range milestones that fall back to vertical lines.
Reduced hover sensitivity for milestone lines: Lowered the hover detection distance from 20px to 10px, making the hover trigger only when the cursor is very close to the milestone line (within ~2.5 days at typical chart zoom), preventing accidental tooltip triggers when hovering nearby activities.
MM/DD/YYYY format with single-pass parsing.
Dramatically faster on large datasets. Users can specify alternative format via date_format parameter.MM/DD/YYYY (default, e.g. "09/15/2024"),
Date class objects, or custom formats via optional date_format parameter (e.g. "%Y-%m-%d" for ISO).parse_date_flex() helper with configurable date_format parameter (default: "%m/%d/%Y").generate_hover_points() handles reversed dates gracefully (End < Start) without crashing.format_label() renders date placeholders in MM/DD/YYYY.test_project) uses MM/DD/YYYY date strings.y = c(0.5, total_rows + 0.5) for consistent visibility across the full chart.display_config$milestone$hide_label_levels parameter to suppress text annotations for milestones at specific label_level values while keeping hover tooltips intact. For example, set to c(1) to hide all level-1 milestone labels. Default NULL shows all labels (fully backwards-compatible).label_level parameter to milestone markers for vertical stacking of labels. Set to 1 or 2 to control which labels appear above others when milestones are close together.milestones <- data.frame(
label = c("Kickoff", "Budget Approval"),
color = c("blue", "green"),
label_level = c(1, 2) # Level 1 appears above level 2
)
milestones$date <- list("01/05/2025", "01/10/2025")
tooltip_config$milestone. Add any columns to your milestone data frame and display them in hover tooltips.milestones <- data.frame(
label = c("Kickoff", "Review Period"),
color = c("blue", "purple"),
Description = c("Project kickoff meeting", "Technical review"),
Owner = c("PM", "Tech Lead")
)
milestones$date <- list("01/05/2025", c("02/10/2025", "02/20/2025"))
Ganttify(
...,
milestone_lines = milestones,
tooltip_config = list(
milestone = c("Description", "Owner")
)
)
date field to specify either a single date (vertical line) or two dates (shaded area).milestones <- data.frame(
label = c("Deadline", "Review Period"),
color = c("red", "blue"),
fill_opacity = c(1, 0.15)
)
milestones$date <- list(
"12/01/2024", # Single date = line
c("10/01/2024", "10/31/2024") # Two dates = shaded area
)
show_yaxis_labels to layout_config to hide y-axis labels. When set to FALSE, activity labels are hidden. If display_config$wbs$show_labels is TRUE, WBS labels will still be shown.layout_config = list(show_yaxis_labels = FALSE)
opacity parameter instead of rgba.tooltip_config parameter to display custom columns from your data in hover tooltips. Specify which columns from wbs_structure and activities to show. Fields that don't exist or have empty/NA values are automatically hidden.tooltip_config = list(
wbs = c("Owner", "Budget"),
activity = c("Status", "Agency", "Priority")
)
hovertext to hovertemplate for more consistent hover behavior across all bar types.short_activity_indicator parameter (replaced by automatic dynamic bar width).hover_popup_max_chars parameter to control text wrapping in hover popups.yaxis_label_width parameter to control y-axis label area width.yaxis_label_max_chars parameter for automatic label truncation.Sys.Date() in milestone_lines.color_config parameter with three modes: "wbs", "uniform", and "attribute".bar_config parameter for bar styling (opacity, height, dim_past_activities).display_config parameter to control visibility of WBS/activities.label_config parameter for custom label templates.