{"version":"1.0","type":"rich","title":"Fork of Fork of Grid Sampling on Census Tracts - Coloring the Grid","description":"This interactive map visualizes New York census tracts on an orthographic projection, with a uniform grid of circles overlaid across the viewport. Grid points inside tract boundaries render as larger, colored circles using a sequential Cubehelix color scale, while points outside remain small. The code uses `d3.geoOrthographic`, `d3.geoPath`, and `topojson-client` for rendering, with `@turf/turf` for point-in-polygon tests and `rbush` for spatial indexing. Census data comes from a Gist, and drag and zoom interactions adjust rotation and scale.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ad2c2e8b04a54320b628d50f9a42d91a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}