{"version":"1.0","type":"rich","title":"A D3 Map, points plotted with canvas instead of SVG","description":"This example shows a zoomable map of Manhattan with tree locations from a CSV file, plotted as red circles. It uses D3 v3 for map tile fetching and projection, while rendering the points onto a Canvas 2D context instead of SVG for performance. The code demonstrates a hybrid approach where D3's `d3.geo.tile` and `d3.geo.mercator` handle geographic transforms, and the canvas context draws arcs at projected coordinates. Zooming and panning trigger redraws, and the mouse position is displayed with latitude/longitude.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}