Experiments

Screenreader / Accessibility validation

• Restaurant locations in Ottawa
• Restaurant locations near Dows Lake
• Non-geographic image map
• Announce zoom
• Feature index

Internationalization / Localization validation

• Localization of map UI
• Right-to-left text

Security / Privacy

• CSP evaluation

Defaults

• Default map projection - Web Mercator

Custom Projections aka the Georeferencing API

• Lambert Equal Area Azimuthal - laea
• Atlas of Canada Polar Wall Map - aeqd
• British Columbia Albers Equal Area
• British National Grid
• Change projection on zoom change
• map-projectionchange event handling by map-extent
• Negotiate map resource projection

Shared primitives

• Custom Map UI
• Progressive Enhancement / Graceful Degradation

DOM API

• HTMLFeatureElement
• GeoJSON to MapML (geojson2mapml)
• Progressive Web App - GeoJSON -> MapML

Linking Spatial Data - GeoWeb

• Alternate basemap styles
• Feature links
• Extension-rendered MapML (XML) document
• Layer content source varies by map zoom

Styling

• Alternate basemap styles
• Media query for preferred content type
• MapML vector tiles styled with external CSS stylesheet
• pmtiles / Mapbox vector tiles styled with application/pmtiles+stylesheet style module
• Dark mode

Miscellaneous

• Snow and Ice Probability: Time Dimension <select>
• Multiple <map-extent> elements in a layer