{"version":"1.0","type":"rich","title":"Label Filtering Algorithm Prototype","description":"This interactive prototype demonstrates a label placement algorithm for maps, rendering a world map with city labels sized by population and color-coded population density contours. The visualization uses D3.js for map projection with `geoNaturalEarth1`, data loading, and zoom interactions, while `rbush` implements spatial indexing to detect overlapping labels. City data comes from a reduced world cities CSV file, and geographical boundaries are drawn from TopoJSON world atlas data. The prototype filters cities by a population threshold and iteratively adjusts label positions to minimize collisions against the computed bounding boxes from SVG text elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a7428f2e7b764346b72d83cc90431cf1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}