Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
How Vector Maps Work (2019)
Search
Vladimir Agafonkin
April 08, 2019
Programming
1
420
How Vector Maps Work (2019)
Vladimir Agafonkin
April 08, 2019
Tweet
Share
More Decks by Vladimir Agafonkin
See All by Vladimir Agafonkin
Fast by Default: Algorithmic Optimization in Practice (dotJS 2019)
mourner
0
2k
Fast by Default: Algorithmic Optimization in Practice (JSCamp 2019)
mourner
0
460
Fast by default: everyday algorithmic thinking for developers [RU]
mourner
1
360
Fast by default: everyday algorithmic thinking for developers
mourner
1
450
Mapbox GL: How vector maps work
mourner
0
340
Random cool stuff I've been hacking on (mostly spatial indices)
mourner
0
520
Как работают современные интерактивные карты на WebGL
mourner
1
490
Leaflet, WebGL & the Future of Web Mapping
mourner
5
3.3k
How Simplicity Will Save GIS
mourner
10
4.2k
Other Decks in Programming
See All in Programming
もう僕は OpenAPI を書きたくない
sgash708
5
1.8k
2024年のWebフロントエンドのふりかえりと2025年
sakito
3
260
GitHub Actions × RAGでコードレビューの検証の結果
sho_000
0
280
Pulsar2 を雰囲気で使ってみよう
anoken
0
240
PHPカンファレンス名古屋2025 タスク分解の試行錯誤〜レビュー負荷を下げるために〜
soichi
1
480
SpringBoot3.4の構造化ログ #kanjava
irof
3
1k
時計仕掛けのCompose
mkeeda
1
310
XStateを用いた堅牢なReact Components設計~複雑なClient Stateをシンプルに~ @React Tokyo ミートアップ #2
kfurusho
1
940
一休.com のログイン体験を支える技術 〜Web Components x Vue.js 活用事例と最適化について〜
atsumim
0
660
DROBEの生成AI活用事例 with AWS
ippey
0
140
Bedrock Agentsレスポンス解析によるAgentのOps
licux
3
880
pylint custom ruleで始めるレビュー自動化
shogoujiie
0
130
Featured
See All Featured
Building a Modern Day E-commerce SEO Strategy
aleyda
38
7.1k
A Modern Web Designer's Workflow
chriscoyier
693
190k
Building Flexible Design Systems
yeseniaperezcruz
328
38k
Scaling GitHub
holman
459
140k
VelocityConf: Rendering Performance Case Studies
addyosmani
328
24k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
44
7k
Statistics for Hackers
jakevdp
797
220k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
30
4.6k
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.1k
Become a Pro
speakerdeck
PRO
26
5.1k
Building Adaptive Systems
keathley
40
2.4k
GraphQLとの向き合い方2022年版
quramy
44
13k
Transcript
how vector maps work Vladimir Agafonkin
None
April 2008
a typical GIS talk
rain.in.ua
so I’m doing maps now, how hard could this be?
None
maps huh? •a bunch of square pictures •drag them with
a mouse •put some icons on top
PFF
Let’s build a mapping library from scratch!
no way you could do that
None
creating a web map in 2008
None
You’re wasting time
None
building from scratch; didn’t tell anyone
None
Web Maps Lite
None
None
born as a protest against bloat, clutter and complexity
None
None
None
None
None
None
None
None
None
None
the number one mapping library in the world* *because the
guy didn’t know shit about maps
•extremely lightweight and simple •extremely easy to get started •huge
community, tons of plugins •stable as a mountain •works everywhere (i.e. legacy browsers)
raster tiles era
OpenLayers
• maps as background • mostly static • top-down, north-oriented
• a rigid set of zoom levels • some simple vectors/icons on top • conceptually the same as 14 years ago Web maps status quo:
None
None
Mapbox vision for maps: living, breathing, fluid, rich, powerful experiences
that make you feel connected to the world Games did it for decades; why not maps?
Evolution of The Elder Scrolls 2002 2006 2011
Evolution of web maps 2002 2006 2011
None
Digital maps before: exclusively web tech Digital maps now: native
mobile apps + web
Browsers before: display a bunch of text and images Browsers
now: anything is possible
vector maps raster maps
let’s build a vector maps platform from scratch!
None
None
None
None
None
None
None
vector maps era
maps.me
why vector maps?
smooth zoom and rotation
None
None
3D features
None
None
None
full control over data presentation in real time
None
None
any object on the map can be interactive
None
None
data-driven styling
None
None
real-time data analysis
None
mourner.github.io/ road-orientation-map
performance: rendering millions of features
None
None
visual map editor
mapbox.com/studio
None
None
None
None
None
None
None
None
less bandwidth
simulation vs cartography?
None
None
github.com/mapbox/ mapbox-gl-js (JS) github.com/mapbox/ mapbox-gl-native (C++14) iOS, Android, QT, Node,
OSX, Linux, Windows
None
None
why isn’t WebGL everywhere yet?
Let’s build something with OpenGL!
OpenGL — 3D API?
OpenGL is a low-level 2D API
None
OpenGL: a technology for drawing triangles really fast
None
drawing lines
None
anti-aliasing
6 triangles
vertex attributes
2 triangles
line joins & line caps
None
drawing polygons
drawing polygons
github.com/mapbox/earcut (JS) github.com/mapbox/earcut.hpp (C++)
drawing text
font textures
unicode-intervals /Arial Regular/0-255.pbf /Arial Regular/256-511.pbf /Arial Regular/512-767.pbf
None
SDF signed distance fields
None
None
None
github.com/mapbox/potpack
mapbox/tiny-sdf
mapbox/ mapbox-gl-rtl-text icu4c C + Emscripten = JavaScript coming soon:
WebAssembly
placing labels
None
mourner/rbush mourner/rbush-knn mourner/kdbush mourner/flatbush mourner/geokdbush mourner/geoflatbush
loading and processing data
mapbox/pbf (JS) mapbox/protozero (C++)
6-7 times faster than JSON.parse Protocol Buffers: 3-4 times smaller
than JSON (gzip)
github.com/mapbox/ vector-tile-spec
mapbox/geojson-vt (JS) mapbox/geojson-vt-cpp (C++)
mapbox/supercluster (JS) mapbox/supercluster-hpp (C++)
mapbox/polylabel (JS, C++)
main thread (UI) processing loading data web workers processing loading
data processing loading data
continuous testing
1082 render tests
mapbox/pixelmatch (JS) mapbox/pixelmatch-cpp (C++)
AppVeyor
hey, what’s there on the server side?
None
the essence of software engineering is mitigation of complexity
vastly bigger scope, same goal: let people build amazing maps
Díky moc! agafonkin.com