8. GIS

Open data and mashup (2010/2)

https://www.youtube.com/watch?v=3YcZ3Zqk0a8

https://gyazo.com/e0589f4de254389c4d3e586c12642037.png

https://gyazo.com/93ea6676d3be7c8d688803f287432117

Showing the clusters of cholera cases in the London epidemic of 1854

Education map

http://personal.tcu.edu/kylewalker/maps/education/#11/37.4573/-122.1678 https://gyazo.com/3adde0c63d94208e470f05b3877bbcb5

Maps

Most popular visualization

https://gyazo.com/c9eadbabad875433676fe312b0dd6e60.png

Maps caveats

Most intellectual people can read maps

Some people cannot read maps

GIS

Add various information onto maps

Not just simple map

Interactive informatio retrieval

GIS overview

Characteristics of maps and GIS

Popular for everyone

Easy to understand

Useful in everyday life

Characteristics of geographic info

Managed by a nation

e.g. Geospatial information authority of Japan (GSI: 国土交通省国土地理院)

Services by pivate companies

Map/GIS companies

Google

Apple

GIS Portal

https://gyazo.com/77d7965cf94aa8ffe74e3c3beef03bdb.png

Various GIS from government organizations

https://gyazo.com/b8cbea8c6f60ce2610990b9de75ac7c1.png

GSI map

GIS site by GSI

https://gyazo.com/23f9e2f84e1fbc8b127f66b67d0637a3.png

GSI map

https://gyazo.com/87857883dfc70dd02a132dbfdeec165a.png

How to use GSI map

https://gyazo.com/c9c87ddec7efe9a06bfa0ce56e8c5b71.png

Japan map center

Map data distribution

http://net.jmc.or.jp/books_map_chizuchushin0912.html https://gyazo.com/01ed33a67f9320010c9db047ab2eb27a.png

Prices of map data

https://gyazo.com/bab23cf6290e571d561268f9eef332f4.png

Ministry of education, culture, sports, science and technology

https://gyazo.com/df71d086afc0f1fc1dd5d821f06638b5.png

Research organizations

University of Tokyo

https://gyazo.com/83c6b991923fbaeb4061137f7376a4a8.png

Academic societies

Companies

Selling ArcGIS

Magazines

https://gyazo.com/57e9b5fcffb573ca17ea7fc3734dd0fe

https://gyazo.com/a11f71429f13ef411c64d3bc73c847fb.png

G space expo

at Kagaku Miraikan (Odaiba)

2019/11/28-30 (Today!)

http://www.g-expo.jp/ https://gyazo.com/99efb8bde402c7565dddb8dd49f1b70f

G space

https://gyazo.com/2c81bb1b1b202b911040105d6672863b.png

GIS research at SFC

Prof. Wanglin Yan

https://gyazo.com/107ac81902ff56f5067b4dde0b329dac.png

https://gyazo.com/2fdf1508b78890b51488ee41c110e769.png

Lectures on GIS

2009年度春 火曜1限

Yan lab

Interview by Prof. Yan

https://gyazo.com/aafe38abed2cfed49bb453490d54bfb9.png

https://www.youtube.com/watch?v=-P-2XI1B0gc

History of GIS

Long history

History of map-based services

Mapion / MapFan started map service (1997)

Maps became free!

GPS on mobile phones (2001)

GoogleMaps API (2005)

Free GIS APIs!

GoogleEarth (2005)

GIS usages

Urban planning

Land usage

Disaster control

Marketting

Shop location planning, delivery management

Route search

Usages in the future

Personal usage

Location-based services

Uber, etc.

Location-based services

High expectation, but not took off

Various useful services exist

Nonsuccessful location-based services

Adding tags to location info

Sharing location info

Location-based communication

Successful location-based services

Entertainment applications

Examples of location-based services

4Square

Google Latitude

Service ended in 2013

Examples of location-based services

Colopl co.

ケータイ国盗り

Hatena koko

Service ended in July 2014

Loke-touch

Service ended in June 2015

Ingress

Location service by Docomo

Ingress

https://www.youtube.com/watch?v=Y6-JAm3NCAk

Poisy

Location-based SNS

https://gyazo.com/00b7de5cea862d0690fce3da9247275a

Started in 2017

Closed in 2018

Computational Geometry

Algorithms for solving geometric problems

Examples of computational geometry problems

Line crossing

Checke if a point is inside a polygon

Overlap judgement

Triangulation

Line crossing

https://gyazo.com/70d1846d73ee162e0731d10c5534eb07

Example of computational geometry algorithm

Voronoi diagram

https://gyazo.com/e36b98b907283dea62dba5707f15002a.png

https://gyazo.com/a3cb418d1997fdd05162ef94ff02f7a1.png

Useful for fiding the closest post office

Example of layout problems

Pack many objects in an area

Get the largest rectangle in an area

Usage in GIS

Check inside/outside

https://gyazo.com/d2a91063cd1abf079c73e7446665ec6c.png

https://gyazo.com/49fc480d4122658fac7244d37b33ebd4

Encaves in Kasagi town (in Kyoto)

https://www.google.co.jp/maps/@34.7559936,135.9026632,15z https://gyazo.com/f6dd982d850928201d72c2b6b88d5d09

Cartography

How to create a map

Japanese cartographers association

https://gyazo.com/f9bf5b924778ac43dc6704d08102540e.png

Deformed map

Deformed map creation system

https://gyazo.com/a97c0a1fead73c92df7f8969c7238a8f.png

https://gyazo.com/acd605feb3d3840ee52677f2d19c75d5.png

Route tree

https://gyazo.com/c7ffb559344553cef8f3a56d130b4a02.png

Map data and geographic data

Map data

Simple map image

Geograhic data

Data for GIS

Data representation format

Raster format

aka bitmap format

Vectore format

lines, edges

What is raster?

Scanning line onn TV Brown tube

TV scanning lines

Flashing moving light point

https://gyazo.com/ab5e1caeab6e89f4a0645ccd314b8d2c.png

https://gyazo.com/b64e63c2da02a11ed98fd64b64be881c.png

Data structure

Different from standard RDB

Distance calculations, overlap calculations

Distance calculation is not easy on RDB

Special data structure

R-Tree, etc.

Commercial GIS systems

Products by ERI

Used in SFC lectures

GIS trade fair

Open source GIS

Info

Organizations

Open source GIS systems

Stand-alone GIS

Libraries for raster/vector data

Japanese version

Extended PostgreSQL for GIS

Used in MapServer, etc.

https://gyazo.com/1a74900aed20d9022fd9e340d8e38f6f.png

Open source GIS servers

MapServer

GeoServer

http://mapserver.org/ https://gyazo.com/761f5c91677779394821f125b3ac038c.png

How to install (by Mr. morikawa)

Showing maps on MapServer

Using MapScript

Using PostGIS

http://www.amazon.co.jp/dp/1590594908/ https://gyazo.com/2bb6963f6d78e98ecec668bb9e01db9c.png

http://geoserver.org/display/GEOS/Welcome https://gyazo.com/3e76534acbf4fb18da959c2b1eb692b3.png

Various GIS systems

Ministry of Land, Infrastructure, Transport and Tourism

https://gyazo.com/f20ea9b7bc4d895d089a88ddacb4d84e.png

https://gyazo.com/ec4f7a74b02f85d1358faac520c1dd0f.png

Distributed GIS

https://gyazo.com/ea3ec582bc0dddb9e2d20a2bc583ffe9.png

https://gyazo.com/a1f4109f7cbd11f88d99f9866bb4a185.png

Application

Using API

Visualization API

Using GoogleMaps

Add info on Google maps

Use special map data

Books on GoogleMaps API

https://gyazo.com/3d80e829a8646ef26d1bd9bc9635a240.png

Add book info on GoogleMaps

https://gyazo.com/86459bc205bac4b18a1fbdeb3e43b7d5.png

Show Tokyo land prices

https://gyazo.com/45746c28693aba5e6e253e222da4e239.png

https://s3-ap-northeast-1.amazonaws.com/naraemon-river/index.html#10/35.6810/139.7670 https://gyazo.com/b1102b37b949011c5c4ece199f033446

https://www.gridscapes.net/AllRivers/#9/35.3499/139.0512 https://gyazo.com/c5d6b0c4743276904b5a61972c784e23

https://gyazo.com/849b000e495b3c5549444c96120ef84a.png

https://gyazo.com/8e2e2ef7a0daf839a65325312a4c0541.png

https://gyazo.com/9c172883bece1332d972512a621baebb.png

https://gyazo.com/df0bfa9195404f5ff9f654ce957fa8a8.png

https://gyazo.com/916c8ee28e4f649c2bb950eb2635a690.png

Photo bowser

https://gyazo.com/49d4ecf5222a7faa7d66e05005e61b48.png

https://gyazo.com/27d66dadac433716223fdaa3498fc0ff.png

Masui's photos

https://gyazo.com/ae643f0514cb561cb21aebc904dfdc10

Photo finder

http://photoloc.herokuapp.com/map?lat=36.39146907104088&lon=137.624537815625&z=8 https://gyazo.com/9595217e39a50f01916f4599f68c230f

GoogleEarth

https://gyazo.com/a6e142f84ccc610b71b9a97fef3266ae.png

Using GoogleEarth

Using GoogleEarth from latitude/longitude data

Using KML data

Akashi bridge

https://gyazo.com/bb5daeb97602b523b05aff2c1c953f2e.png

Example KML file

https://gyazo.com/bd7ecec7e05f92cc0604083e87b04044.png

JS library for GoogleEarth

http://cesiumjs.org https://gyazo.com/afeaf29988ae4bb6b90306982c214d73.png

https://gyazo.com/d2ae3afce21cb9b6456181e01f1e3f20.png

with Cesium

Visualization with map-like display

Mind maps

Put inforamtion on a map

Company maps

https://gyazo.com/77820a7a884d5363ab16adffd6655f5f.png

WING

Information retrieval with geographic data

https://gyazo.com/02cb3774e6f9bcbc5d7355a1b63bb62d.png

Video: WING

https://www.youtube.com/watch?v=8i1IqBXbV9g

https://gyazo.com/90b7cfd0a76afe70e1579012dac4849b.png

https://gyazo.com/2d3036200531b13ae5b557399488bffd.png https://socialinnovationsimulation.com/2013/07/11/tutorial-making-maps-on-d3/

https://gyazo.com/d2d06b65b118e9b7618efc2b0e260a00.png http://www.tam-tam.co.jp/tipsnote_sample/yoshida/d3map/#

Summary

Various GIS systems and services

Many data available for free

Useful for various visualization

End