System Design · Google · Hard
This is a system design answer for the geospatial visualization question. Architecture Overview System architecture: server-side tile pyramid, CDN, client with main thread and web worker, SSE live updates, and tile caching. The goal is to render 100M+ geospatial points over a Google Maps base map. The system must: Aggregate points at broad zoom levels into heatmaps. Show individual pins at the final zoom level. Accept live updates via SSE. Handle caching, fallback, and…
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