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SKILL_JS5_ARCGIS / arcgis-charts

AGENTS.md1 starsChanged 6 months agoMITView on GitHub

Quick-reference for charts. Read before adding a chart. 1. Chart type? categories → barChart/pieChart; trend → lineChart; correlation → scatterplot; distribution → histogram/boxPlot. 2. The layer already has saved charts? → chart.layer = layer; chart.chartIndex = 0. 3. New chart? → createModel({ layer, chartType }), set the model's fields, chart.model = model. 4. Link to map? → chart.view = view; chart.syncViewSelection = true.

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AGENTS.md

Agent Guide: arcgis-charts

Quick-reference for charts. Read before adding a chart.

Quick Decision Tree

  1. Chart type? categories → barChart/pieChart; trend → lineChart; correlation → scatterplot; distribution → histogram/boxPlot.
  2. The layer already has saved charts? → chart.layer = layer; chart.chartIndex = 0.
  3. New chart? → createModel({ layer, chartType }), set the model's fields, chart.model = model.
  4. Link to map? → chart.view = view; chart.syncViewSelection = true.

Setup Checklist

  • @esri/calcite-components pinned to ~5.1.2: Calcite 5.2 stops charts 5.1 from drawing.
  • createModel from @arcgis/charts-components/model/shared/setup-utils (no .js).
  • Set chart.layer AND chart.model; there is no config property on the element.
  • Check the model fields exist on the layer (layer.getField).
  • Give the element a size in CSS.
  • Wait for arcgisDataProcessComplete before exporting or asserting.

Anti-patterns (one-liner reminders)

  • ❌ chart.config = {...}: invented, silently ignored, empty chart.
  • ❌ ^5.1.x for Calcite: resolves to 5.2 and the chart never draws.
  • ❌ 5.0 names that 5.1 deprecated (filterByExtent, syncSelectionsBetweenChartAndLayerViewPolicy).

Files in This Skill

  • SKILL.md / SKILL.es.md — full guides
  • references/api-detail.md — arcgis-chart, createModel, models, 5.1 renames
  • references/examples.md — bar / line / map-link
  • references/pitfalls.md — extended troubleshooting
  • scripts/snippet-chart.ts

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