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Road Ahead for Vector Mapping

This session explores the use of vector tiles in mapping, covering topics such as why vector tiles are important, their advantages over raster tiles, and how to build and style them. Demonstrations of vector content and a roadmap for their implementation are included. The session also discusses the use of vector tiles in ArcGIS and showcases the upcoming features and capabilities of ArcGIS Pro and the ArcGIS JavaScript API.

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Road Ahead for Vector Mapping

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  1. Road Ahead for Vector Mapping Craig Williams, Jeremy Bartley, & Yaron Fine

  2. Agenda • Why vector tiles? • Vector tiles in ArcGIS • ArcGIS content demo (styles etc.) • Roadmap for vector tiles (APIs etc.) • How we build them, what’s different • Additional demonstrations • Recap

  3. Web Mapping today • Typically vector content (points, lines, polygons) • Displayed on top of basemaps • Since ~2005, basemaps have usually been raster tiles • Dynamic updates of the map consist of two things: • Updating overlay content as drawn in client • Changing the basemap • Paradigm is changing

  4. Raster tiles for high dpi devices 256 Example from Google Maps 128 256 128

  5. Why vector tiles? Raster is Faster, but Vector is Corrector – Joseph Berry

  6. Why vector tiles? • GPUs have changed the landscape • On your devices (OpenGL) • In your browser (WebGL) • On your desktop (DirectX, OpenGL) • Even in virtualized systems (vGPU) • Vector data can remain vector • Raster data still best served as raster in most circumstances

  7. Advantages of vector tiles Labels rotate and flip • Display quality • Best possible resolution for Retina displays • Small efficient format • Dynamic labeling • Clearer, more readable text • On the fly labeling for heads up display • Map Styling • Streets, Topo, Canvas from one tileset • Day and Night mode • User restyling

  8. Vector tiles in ArcGIS • Tiles produced in ArcGIS Pro • Use the Mapbox vector tile spec • Which uses Google protocol buffers • Styling converted to Mapbox gl style spec • More aggressive overzoom • Builds on generalization work done in past ArcGIS releases • More work and research to be done in this area

  9. Vector tile format • Vector tiles are compressed into protocol buffers • Compact binary format for transferring data • Data is organized into layers of geometry with key/value pairs of attributes • A style file defines • The layer order • Definition query for each layer • Symbol information for each layer

  10. Preview of ArcGIS Basemaps

  11. Cooking process • Entire world • ~ 8hrs on a desktop machine • Tiles ~ 13 GB • Styles share tiles • Compared to raster • ~ many weeks on a server cluster per map style • Tiles ~ 20 TB

  12. ArcGIS vector tiles roadmap • Cooking tools to be released in ArcGIS Pro 1.2 (early 2016) • Services in ArcGIS Online and ArcGIS Server 10.4 (early 2016) • Tile consumption • ArcGIS Runtime Quartz – Beta 2 • Ground up implementation • ArcGIS Pro 1.2 • Will share Runtime implementation • ArcGIS JavaScript 4.0 API – Demonstration capability now in Beta 1 • Currently uses mapbox-gl-js library

  13. ArcGIS vector tiles service http://<catalog-url>/<folder>/<serviceName>/VectorTileServer |--fonts/ |--styles/ |--sprites/ |--tilemap/ |--tile |--root.json Optional export tiles capability Service preview example

  14. Producing tiles in ArcGIS Pro

  15. Tiles in the JavaScript API 4.0 Beta 1

  16. Vector tile client code (Runtime) • The client code is implemented in C++ and JavaScript • The C++ code is using both OpenGL and DirectX for rendering • Shared code across our platform

  17. Tiles in ArcGIS Runtime Preview of Quartz implementation

  18. Thank you… • Please fill out the session survey in your mobile app • Select Road Ahead for Vector Mapping in the Mobile App • Use the Search Feature to quickly find this title • Click “Technical Workshop Survey” • Answer a few short questions and enter any comments

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