{"version":"1.0","type":"rich","title":"harv_samp_cur.geojson - map-overlay-annotation - Online tool to gather 2D GIS data via map annotation and markup. - Google Project Hosting","description":"This example displays a GeoJSON dataset of sample curves overlaid on a map, with the annotation tool providing interactive markup of 2D GIS data. The code renders geographic features using `d3.geoPath` and likely projects them with `d3.geoMercator` or similar. The data file, `harv_samp_cur.geojson`, is loaded from a gist and contains vector geometry for the curves. The visualization emphasizes the overlay of user-annotated spatial data, demonstrating how the map-overlay-annotation tool captures and displays geographic information through browser-based drawing and editing.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-8393682?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}