any_sparklines

Releases

1. ▸▾3.0.112 Aug 2026

   Added a configurable eps threshold to pie layout and data-bounds computations.

   • Added a configurable eps threshold to pie layout and data-bounds computations.
   • Fixed lint warnings for unbraced if statements.

   Open source →
2. ▸▾3.0.010 Aug 2026

   Breaking: unit-aware visual lengths

   • Breaking: unit-aware visual lengths

     • ThicknessData.size, ThicknessOverride.size, marker radius, and chart/data-point border radius now use ILengthValue.
     • Added Px, Vw, Vh, Dx, and Dy; viewport units follow CSS percentage semantics (Vw(1) is 1%).
     • Added deferred cross-unit interpolation and support for custom length implementations through ILengthContext.

   • Breaking: simplified layouts

     • Removed RelativeDimension, RelativeLayout.relativeTo, and IChartLayout.transformScalar().
     • ChartTransform no longer accepts an IChartLayout; it resolves lengths from its dimensions and path matrix.
     • Layouts now transform plot coordinates only; each visual value owns its sizing policy.
     • Pie auto-bounds are derived from data geometry and no longer include visual thickness, borders, corners, or markers.

   • LineData

     • Added LineData.scatter(points: ...) for marker-only x/y plots without connected lines or area fills.
     • Added ScatterLineData; scatter rendering is selected through lineType and can be changed with copyWith(lineType: ...).
     • Single-point line and scatter data now render their point marker.

   • Breaking: custom line types

     • ILineTypeData now requires drawLine and minPoints so renderers can determine whether and when to draw connected geometry.

   • DataPoint and DataPointPipeline

     • Added DataPoint.z as an interpolated third dimension that does not affect layout bounds.
     • Added direct Object? point keys for selecting pipeline transformations; keys retain the source value at t <= 0 and adopt the destination value afterward during interpolation.
     • Removed IDataPointMeta and replaced DataPointMeta with the value-based DataPointKey, retaining its id, string key, and label fields.
     • Added rescaleZ() with shared automatic bounds, optional clamping, and target-midpoint handling for equal z values.
     • Added scatterZ() with optional key/predicate filtering and z-interpolated StylesInterval/ExtentsInterval metadata.
     • Added optional groupingStep to stack(). When provided, nearby x values are grouped into rounded buckets of that size; the default remains exact x matching.
     • Added optional z ordering to sort().

   • Visual lengths

     • Added Vmin and Vmax for percentages of the shorter and longer logical viewport dimensions.

   • Chart insets and point fitting

     • Added reusable ChartInsets with optional left, top, right, and bottom ILengthValues for global widget padding and local per-chart padding.
     • Added ChartInsets.all(), ChartInsets.horizontal(), and ChartInsets.vertical() convenience constructors.
     • Added CircleDataPointStyle.extent for a symmetric point extent matching the circle radius.
     • ChartInsets implements IDataPointExtent and can be stored in DataPoint.data for automatic, position-aware visual overflow fitting around (x, fy).
     • Global padding, local padding, and point overflow are combined once from the preliminary transform without changing source data or layout bounds.
     • Charts sharing a layout receive one aligned inset transform; over-constrained axes collapse to the weighted position between their opposing insets.

   • Seat maps

     • Added SeatKey with an optional database/display label and value identity based on area, row, and column.
     • Added SeatSelector with OR-set label, row, column, and nullable-area filters plus OR-of-AND tag groups.
     • Added deferred SeatsBuilder actions for fluent row and column geometry with labels, horizontal and vertical gaps, skipped slots, z values, tags, areas, and point metadata.
     • Added nestable record()/repeat() blocks and reusable saveRecord() action templates for replaying seat-layout sequences during build().
     • Added saveState(), saveOnlyState(), and restoreState() for deferred gap, area, tag, and data snapshots.
     • Added ISeatLabelBuilder, default NullLabels, and exact-consumption ListLabels with end-of-build validation.
     • Added DataPointPipeline.seats() for fixed style and optional extent decoration using selectors, predicates, and exact seat keys.

   • Breaking: custom chart data

     • Replaced ChartPadding with ChartInsets without a compatibility alias.
     • IDataPointExtent now extends IDataPointData so custom extents can be stored directly in point metadata.
     • ISparklinesData now implements Iterable<DataPoint> and requires padding and supportsPointExtents.
     • BetweenLineData iterates its from points followed by its to points but disables point-extent fitting.

   Migration

   2.x	3.0
   ThicknessData(size: 2)	ThicknessData(size: Px(2))
   CircleDataPointStyle(radius: 4, ...)	CircleDataPointStyle(radius: Px(4), ...)
   borderRadius: 4	borderRadius: Px(4)
   relativeTo: RelativeDimension.width with a scalar 0.1	Remove relativeTo; use Dx(0.1) on that visual property
   relativeTo: RelativeDimension.height with a scalar 0.1	Remove relativeTo; use Dy(0.1) on that visual property
   Custom IChartLayout.transformScalar()	Remove it; custom units implement ILengthValue.resolve()
   ChartTransform(layout: layout, dimensions: d, pathTransform: m)	ChartTransform(dimensions: d, pathTransform: m)