Vector Tiles
to
Web Map
April 3, 2019
@pkeum
pkgeo.com
Title Text
CUGOS
Raster
- Image format(png, jpg)
- Styled before loading
- Specific zoom levels
Vector
- Protobuf format, includes geo data
- Styled after loading
- Unlimited zoom level
Map Tiles
Vector Tiles & Web Mapping
Raster Tiles
- Don't Scale
- Hard to change
- Just Pictures, not data
Vector Tiles
Packet of geographic data packaged into pre-defined, roughly-square shape tiles which vector data has been clipped to the boundaries of each tile... benefits of pre-rendered raster map tiles with vector map data"
From Wikipedia, the free encyclopedia
Raster vs Vector Tiles
Credit: Sam Matthews
Vector Tiles
language-neutral, platform-neutral extensible mechanism for encoding structred data"
Similar to xml except smaller, faster and simpler
.pbf or .mvt (mapbox vector tile)
Vector Tiles
- Packet of Binary format geographic data
- Clipped to the boundaries of each tile
- Format for Easy to Store
- Format for Distribution at Scale
Credit: Sam Matthews
Vector Tiles
- Very Compressed data
Vector Tiles can deliver the minimum amount of data your software needs with speed at scale with a low cost (Mapbox Spec v. 2)
Credit: Sam Matthews
Smart Data!
Easy To Change!
Raster vs Vector Tiles
BOOM!!
Power of Vector Tiles
Five County Parcels Polygons - Demo
- King, Pierce, Snohomish, Island, Kitsap
- 1.2 million polygons
- shp 730 MB -> 90 MB vector tiles
Quick Demo 1
Power of Vector Tiles
WHOA!
Workflow
WA URISA 2018
(1) Preparing Data
Geospatial Data Abstraction Library
Command line utilies for data processing and data translation
Convert shape file to GeoJson
(2) Creating Vector Tiles
Command-line Utility tool to convert custom data to vector tiles
GeoJSON --> *.mbtiles
(3) Rendering Vector Tiles
Open Source Vector Tile server with options
(4) Styling Vector Tiles
Free and Open Source visual style editor for designer and developers
- Can Run locally
Commercial visual style editor for designer and developers & so much more...
"First do it, then do it right, then do it better."
Credit: Lyzi Diamond
Doing is Learning, but...
Doing with mistakes?
It's still learning!
Cascadia
Users
of
Geospatial
Open
Source
Come Join US!
SO, Here We GO!
Seattle Maptime Vector Tiles to Web Map - April 3, 2019
By Peter Keum
Seattle Maptime Vector Tiles to Web Map - April 3, 2019
This presentation is for Maptime Seattle April 3, 2019. Updated presentation from Oct 2017 Vector Tiles Seattle Maptime. Presentation on creating vector tiled basemap using open source tools. using local data to generate vector tiles and create webmap. Using gdal/ogr, tippecanoe and tileserver-gl server to create and serve vector data and web map.
