This article explains why compressing large GeoJSON payloads is essential for WebGIS applications and provides step‑by‑step guidance on configuring Gzip compression globally or selectively in SpringBoot, complete with code examples and performance results.
This article explains how to create a complete map drill‑down feature in ECharts, covering data preparation, chart initialization, event handling, dynamic rendering, navigation controls, custom tooltips, and best‑practice tips for interactive geographic visualizations.
fastjson 1.2.68 introduces a safeMode configuration that disables autoType, adds an autoType blacklist, supports GeoJSON, and fixes several bugs including JSONObject conversion issues, jsonpath .max/.min handling, and Map.Entry generics, while providing detailed release notes for developers.
This tutorial explains how to create rational, layered choropleth maps using Python libraries like Pandas together with Vega and GeoJSON, covering data preparation, FIPS mapping, and generating visualizations for population density, income, and unemployment rates.
