20140625 google earthの最前線
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2 0 0 8 ( c ) T a i c h i F U R U H A S H I
グ ー グ ル ア ー ス の 最 前 線 -眺めるだけではない、あなたの地球-
東京大学新領域 環境情報学実習 I 2 0 1 4 0 6 2 5
東京大学 空間情報科学研究センター
特任研究員
古 橋 大 地
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by mapconcierge & OSM contributors
http://goo.gl/mQiRbg
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問 題 1
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富士山の断面図を
作成できる?
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問 題 2
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ストリートビューは
柏キャンパスも
撮影している?
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答えは
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2 0 0 8 ( c ) T a i c h i F U R U H A S H Ihttp://izki.sblo.jp/article/22499348.html より引用
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2 0 1 3 ( c ) T a i c h i F U R U H A S H I , C C B Y - S A 9
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2 0 1 3 ( c ) T a i c h i F U R U H A S H I , C C B Y - S A 10
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2 0 1 3 ( c ) T a i c h i F U R U H A S H I , C C B Y - S A 11
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2 0 1 3 ( c ) T a i c h i F U R U H A S H I , C C B Y - S A 12
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2 0 1 3 ( c ) T a i c h i F U R U H A S H I , C C B Y - S A 13
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2 0 1 3 ( c ) T a i c h i F U R U H A S H I , C C B Y - S A 14
(c) Google
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2 0 0 8 ( c ) T a i c h i F U R U H A S H Ihttp://izki.sblo.jp/article/22499348.html より引用
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問 題 3
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これは何でしょう?
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答えは
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アフガニスタンと
イラクで亡くなった
アメリカ人兵士
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日本にいると
伝わらない情報が
場所を通じて
より鮮明になります。
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問 題 4
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今の
天気を知りたい!
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問 題 5
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明治のころの
柏の葉付近は
どんな環境だった?
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世の中の情報の
半分以上は
場所が含まれます。
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デジタル
アースブラウザ
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アメリカの
元副大統領
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デジタル
アース
構想
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2005年6月
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Google Earth
ver3.0 公開
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ダウンロード数
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1億以上
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データ量
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100テラ以上
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空間解像度
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空間解像度10cm
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他 に も似たようなソフトがある
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World Wind by NASA
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Bing/ Virtual Earth
by Microsoft
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ArcGIS Explorer
by ESRI
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デジタルアースブ ラ ウ ザ
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これらは
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地理空間情報の
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視覚化
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&
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情報共有ツール
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Digital Earth Browser and Web Browser
デジタルアースブラウザ ウェブブラウザ
KML HTML
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Digital Earth ブラウザ
http://earth.google.com/
World Wind (NASA, since 2004)
Google Earth (Google, since2005)
ArcGIS Explorer (ESRI, since 2006)
http://worldwind.arc.nasa.gov
http://www.esri.com/software/arcgis/explorer/
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KML
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Maps
Earth
Sketch Up
Google Geo Products
Geo
TAG
K M L
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<?xml version=“1.0” encoding=“UTF-8”?><kml xmlns=“http://earth.google.com/kml/2.1”><Folder> <name>cafe</name> <description><![CDATA[Created by Taichi FURUHASHI ]]></description> <LookAt> <longitude>139.9366077796045</longitude> <latitude>35.90168740874968</latitude> <altitude>17.41304574400348</altitude> <range>104.3070304725559</range> <tilt>80.4794</tilt> <heading>141.932</heading> </LookAt> <Folder> <name>Tour</name> <Placemark> <name>Camera</name> <LookAt> <longitude>139.9366077796045</longitude> <latitude>35.90168740874968</latitude> KMLデータの中身(一部抜粋)
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KMLの特徴• データ形式が世界標準(OGC)
http://www.opengeospatial.org/standards/kml • XMLデータ • 圧縮可能(ZIP) • ネットワーク対応(NL) • 多彩なデータ型 • 時間情報を扱える
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データ型• 点(Point)
• 線(Line)
• 面(Polygon)
• 画像(地面、スクリーン、写真)
• 3Dオブジェクト(COLLADA)
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Point
Polygon
Line
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Line
3D Object
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Image (Screen)
Image (Ground)
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Image (Ground)
Image (Screen)
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3D Object with Texture
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Polygon with attributes and TimeScale
Image (Screen)
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自分で
作れる
地理空間情報
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b y m a p c o n c i e r g e
w w w . s l i d e s h a r e . n e t /m a p c o n c i e r g e
@mapconcierge