T15 Charts: cartesian with axes, legend, crosshair, tooltip, zoom, annotations and export (T15a); pie, donut, radar, heatmaps, treemap, sunburst, waterfall and spreads (T15b); sankey, funnel, gantt, force graph, chord, parallel coordinates, bullet and progress (T15c)

tasks/ch11-20.md

@@ -149,40 +149,46 @@
 - [x] TreeTable → `tables::TreeTable`, `TreeRow`
 - [x] PivotTable → `tables::PivotTable`
 
-## T15 Charts — `src/charts`
+## T15a Charts · Cartesian — `src/charts`
 
-- [ ] LineChart
-- [ ] AreaChart / StackedArea
-- [ ] BarChart
-- [ ] PieChart / DonutChart
-- [ ] ScatterChart
-- [ ] BubbleChart
-- [ ] RadarChart
-- [ ] HeatmapChart
-- [ ] CalendarHeatmap
-- [ ] Treemap
-- [ ] Sunburst
-- [ ] SankeyChart
-- [ ] FunnelChart
-- [ ] WaterfallChart
-- [ ] BoxPlot
-- [ ] Histogram
-- [ ] ViolinPlot
-- [ ] GanttChart
-- [ ] NetworkGraph / ForceGraph
-- [ ] ChordDiagram
-- [ ] ParallelCoordinates
+- [x] LineChart
+- [x] AreaChart / StackedArea → `charts::AreaChart::stacked`
+- [x] BarChart
+- [x] ScatterChart
+- [x] BubbleChart → `charts::ScatterChart` with `Points::sizes`
 - [x] Sparkline / SparkBar / SparkArea → `data_display::Sparkline`, landed with T14a for table cells
-- [ ] Bullet Chart
-- [ ] ProgressChart
-- [ ] RealtimeChart
-- [ ] ChartLegend
-- [ ] ChartTooltip
-- [ ] ChartCrosshair
-- [ ] ChartAxis / ChartGrid
-- [ ] ChartZoom / Brush
-- [ ] ChartAnnotation
-- [ ] ChartExport — SVG and CSV
+- [x] RealtimeChart
+- [x] ChartLegend
+- [x] ChartTooltip
+- [x] ChartCrosshair → the hover of `LineChart`, `AreaChart` and `BarChart`
+- [x] ChartAxis / ChartGrid → the axes every cartesian chart draws
+- [x] ChartZoom / Brush → `LineChart::zoom`
+- [x] ChartAnnotation → `rule` and `note`
+- [x] ChartExport — SVG and CSV → `svg` and `csv` on each cartesian chart
+
+## T15b Charts · Parts and spreads
+
+- [x] PieChart / DonutChart → `charts::PieChart::donut`
+- [x] RadarChart
+- [x] HeatmapChart
+- [x] CalendarHeatmap
+- [x] Treemap
+- [x] Sunburst
+- [x] WaterfallChart
+- [x] BoxPlot
+- [x] Histogram
+- [x] ViolinPlot
+
+## T15c Charts · Flows and relations
+
+- [x] SankeyChart
+- [x] FunnelChart
+- [x] GanttChart
+- [x] NetworkGraph / ForceGraph → `charts::NetworkGraph`
+- [x] ChordDiagram
+- [x] ParallelCoordinates
+- [x] Bullet Chart → `charts::BulletChart`
+- [x] ProgressChart
 
 ## T16a Finance · Market charts — `src/finance`