Using open source tools to create vector tiles and web-maps (other things)
November 2, 2017
Peter Keum
University of Washignton, Tacoma WA
CUGOS
Using open source tools to create vector tile basemaps
Using open source tools to create web map
Creating web maps with vector tiles
Vector tiles and the future of web maps
Another new new thing???
Doing is Learning, but...
Doing it badly?
It's still learning!
Raster
- Image format
- Styled before loading
- Specific zoom levels
Vector
- Protobuf format, includes geo data
- Styled after loading
- Unlimited zoom level
Map Tiles
Part 1 - Vector Tiles & Web Mapping
Raster Tiles
- Don't Scale
- Hard to change
- Just Pictures, not data
ArcMap
ArcGIS Server
Power of Vector Tiles
Five County Parcels Polygons
- King, Pierce, Snohomish, Island, Kitsap
- 1.2 million polygons
- shp 730 MB -> 90 MB vector tiles
WA Building Footprints - 1 million buildings
- Source: 9.8 million building by Microsoft hand digitized footprint with heights
Quick Demo
WHOA!
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
Similar to raster tile except it returns vector representation of feature in the tile.
- Scales
- Easy to change
- Smart data
Easy to Change!
Smart Data!
Raster & Vector Tiles
Preparing
Data
Creating
Vector Tiles
Styling/Rendering
Vector Tiles
Preparing Data
Geospatial Data Abstraction Library
Command line utilies for data processing and data translation
How to convert shp to geojson
Creating Vector Tiles
Command-line Utility tool to convert custom data to vector tiles
GeoJSON --> *.mbtiles
Styling Vector Tiles
Free visual style editor for designer and developers
Commercial visual style editor for designer and developers + so much more...
Rendering Vector Tiles
Open Source Vector Tile server with options
Preparing
Data
Creating
Vector Tiles
Styling Vector Tiles
Rendering Vector Tiles
Part 2 - Tools
CUGOS
Cascadia
Users
of
Geospatial
Open
Source
Part 3 - GIS + Vertical Industry
Future of GIS (personal view)
GPT
General Purpose Technology
GPT
"GPT always needs complements"
Urban Planning
Utilities
You
Social Justice/Equity
Environmental
Science
GIS
GIS
GIS
GIS
You
You
You
GIS
Companies are using maps not just as nice features but to drive revenue as core components of their offering. Maps are no longer just a good way to visualize content, they are core to competitive advantage.
Companies are thinking more creatively about how to combine location with outside content and internal business data to differentiate products
"First do it, then do it right, then do it better."
THANK YOU!
peter.keum@kingcounty.gov
@pkeum
github.com/keum