Baidu Maps Tech Team

Nov 22, 2017 · Frontend Development

Render High‑Quality Lines in WebGL Maps: Width, Joins, Dashes & Anti‑Aliasing

This article explains why native WebGL line drawing is insufficient for map engines and presents a shader‑based approach that splits lines into triangles, handles custom line widths, line joins, dash patterns, and anti‑aliasing to achieve consistent, high‑quality map rendering.