{"version":"1.0","type":"rich","title":"Firefly Map of Coronavirus Case Locations","description":"This interactive map displays the locations of confirmed Coronavirus cases as of March 5, 2020, with each point rendered as a glowing firefly-like sprite of uniform size and intensity regardless of case count. The visualization uses OpenLayers with React to manage the map and vector layers, while D3’s `cubehelix` function generates radial gradient sprites that combine a bright core with a soft Gaussian falloff. Data comes from the Johns Hopkins COVID-19 time-series CSV, filtered to include only locations with non-zero cases, and is projected onto a Stamen toner-lite basemap.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}