geodesic — 2 Technical Articles

Jun 9, 2020 · Fundamentals

Why Do Map Distances Follow Curved Paths? Understanding Geodesic Lines

This article explains why the shortest distance between two points on a map appears as a curve rather than a straight line, covering the concept of geodesic lines, map projection distortion, and how modern map APIs implement accurate distance rendering.

cartographydistance measurementgeodesic

0 likes · 5 min read

Why Do Map Distances Follow Curved Paths? Understanding Geodesic Lines

Meituan Technology Team

Sep 30, 2014 · Backend Development

Optimizing Large-Scale Geodesic Distance Calculations

The article presents techniques for accelerating geodesic distance calculations across millions of coordinate pairs—such as vectorized formulas, spatial indexing, parallel processing, and approximation algorithms—that dramatically cut CPU time and memory usage while preserving required accuracy for large‑scale geographic analyses.

Optimizationbackenddistance-calculation

0 likes · 1 min read

Optimizing Large-Scale Geodesic Distance Calculations