nepal_administrative_map 0.0.3

Interactive, bilingual (English/Nepali) map of Nepal's 7 provinces, 77 districts and 753 local levels, with zoom, drill-down, choropleths and search.

0.0.3

• README: link to the live web demo (https://4bhisheksharma.github.io/nepal_administrative_map/).
• Example web app: proper page title, description and app name.

0.0.2

• README: screenshots and links now use absolute GitHub URLs, so they show on pub.dev.

0.0.1

First public release (release candidate for 0.0.1).

• The credit line now names the package author ("Map © Abhishek Sharma") next to the required data credit; showPackageCredit: false drops the author part, and NepalMap.packageCredit / NepalMap.attributionText() give the text.
• Accessibility: a screen-reader node per visible region (name, parent and value in the active language, with a tap action); keyboard navigation (Tab, arrow keys, Enter/Space, Esc, +/-) with a focus ring (NepalMapTheme.focusOutline, RegionState.isFocused).
• Export: NepalMapController.toImage() and toPngBytes().
• Animations: fade-in on load, choropleth colour transitions, pan momentum (fling), animationCurve; all off with reduced motion.
• Performance: label placement reuses its sorted candidates and laid-out text (local-level pan frames 5 → 0.6 ms in the benchmark); borders re-record only after a 15% zoom change; per-region styles and labels are memoised. MapPaintContext.scaleDiffers for custom layers.
• RegionStyle.copyWith; scales and Choropleth have value equality.
• Widget tests run with leak tracking.
• Choropleth maps: Choropleth (also Choropleth.byCode) with ColorScale.sequential, diverging, threshold and categorical, interpolated in OKLab; RegionState.value; values in tooltips; NepalMapTheme.noDataFill.
• NepalMapLegend, on the map or standalone, with numbers in the active language.
• Markers: widget markers and painted MapMarker.dots, onMarkerTap.
• Search: Nepal.search in English (prefix, typos, old spellings) and Nepali; NepalMapSearchField.
• Point lookups: NepalMapData.localLevelAt, districtAt, provinceAt; MapShape.areaKm2; NepalMap.preload() returns the data.
• Opt-in protected-area overlay (showProtectedAreas) with labels.
• Public layer API: MapLayer, MapPaintContext, NepalMap.extraLayers.
• Zoom and pan: pinch, drag, double-tap, mouse wheel; minZoom, maxZoom, interactive.
• Hover highlight, onRegionHover, and tooltips on hover or long-press (showTooltips, tooltipBuilder, RegionTooltip).
• Labels in English, Nepali or both (labelMode, labelBuilder), placed at each region's pole of inaccessibility with collision avoidance.
• Drill-down (drillDown, onScopeChanged), NepalMapBreadcrumb, Esc to go back.
• NepalMapController: selection, highlight, zoomTo, zoomIn/zoomOut, resetView, drillDown/drillUp/drillTo, runtime language.
• Province borders use the stronger parent style on province maps too.
• NepalMap widget: provinces, districts or local levels; scope to one province or district; tap to select (single, multi, none, or controlled with selected); style callback; NepalMapTheme theme extension with light and dark defaults; English / Nepali following the app locale; data attribution line; NepalMap.preload().
• Protected areas are filled in a muted colour on local-level maps.
• Bilingual data pipeline (tool/build_data.dart) producing a single 422 KB topology for provinces, districts, local levels and protected areas.
• Typed regions: Province, District, LocalLevel, ProtectedArea enums with stable codes and English / Nepali names.
• Bilingual basics: MapLanguage, LocalizedName.of, NepalNumberFormat (Devanagari digits, lakh/crore grouping), NepalMapStrings, Devanagari normalisation.
• Regions: fullName(lang), hierarchy getters (province.districts, district.localLevels, region.province), translated type and level labels, and the Nepal gazetteer (byCode, aliasesOf, …).
• NepalMapData: TopoJSON decoding in a background isolate, cached, with point lookup (regionAt, protectedAreaAt).
• Geometry: LatLng, Bounds, Web Mercator, point-in-polygon, polylabel.