lucyia | zip codes of Slovakia

9

2

1

1

5

Ben Fry | zipdecode

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9

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9

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how to create an interactive map with d3.js

[crash course]

code on github

1. process / get data

2. setup variables and scales

3. setup projection, zoom handling, tip, ...

4. draw the data

     [d3 update pattern]

5. handle the behaviour of zoom, mouse, ...

created by lucyia and calum

Visualizing TFL Accident Data

[ Fatal, Severe, Slight ]

[ Westminster,  Camden, ... ]

"2017-07-05T10:03:35.692Z"

"Long Lane junction ..."

-0.101061

51.518929

693758

[ Adult, Child, Unknown ]

[ PedalCycle, Car, ... ]

[ Driver, Pedestrian, Passenger ]

[ Fatal, Severe, Slight ]

[ 0 ... 99 ]

[ PedalCycle, Car, ... ]

Google Maps + Canvas Layer + d3

Google Maps (+ Google Maps Data Layer) + d3

controls

& data viz

data points

map

controls

data points

map

SVG /

Canvas /

HTML / ...

SVG /

Canvas /

Data Map / ...

Map

layers

controls

data points

map

SVG /

Canvas /

HTML / ...

SVG /

Canvas /

Data Map / ...

Map

d3 /

JavaScript /

HTML / ...

d3 /

WebGL /

Data Layer / ...

Google Maps /

OpenStreetMap /
...

layers

tools

conclusion

small dataset         →              D3 + SVG

large dataset         →        D3 + Canvas

custom map layers

getting started

Command-Line Cartography by Mike Bostock

Projections available in D3.js + Extended Geo Projections for D3-geo

Working with D3.js and Canvas: When and How by Irene Ros

Interactive Data Visualization for the Web by Scott Murray

THANK YOU

/ _lucyia

/ lucyia