Unverified50% confidenceFactExact time

TfL提供的地理数据通常采用WGS84坐标系，英国国家测量局还维护OSGB36/British National Grid坐标体系

1

Sources

50%

Confidence

Long-term

Relevance

7/12/2026

First Seen

Sources

Tracking London's Underground in 3D Real-Time: A Technical Breakdown of an Open-Source Visualization Project

hackernewshackernews7/4/2026

Related Claims

UnverifiedWGS84是GPS系统及ADS-B数据所使用的全球地理坐标参考系，以地球质心为原点74% similar Unverified在大范围空间分析中直接用WGS84地理坐标系计算欧几里得距离会产生显著误差，应先投影到合适的平面坐标系（如南加州适用的UTM Zone 11N）63% similar

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