The difficulties in performing 3D GIS and Applications of 3D Spatial Analysis

Yıl 2010, Cilt: 2 Sayı: 3, 1 - 12, 01.09.2010

İsmail Rakıp Karaş Fatmagül Batuk Erdener Yeşil

Öz

While commonly used Geographic Information Systems (GIS) mostly allow two dimensional (2D) applications,with the technological improvements it is necessary to produce more effective solutions in modeling real world. This progress have revealed the concept of the “Three Dimensional GIS (3D GIS)”. The systems that perform every functions expected from a GIS on real objects of 3D world can be defined as 3D GIS. Even if some of the systems are called as 3D while they are out of the concept of 3D GIS. In this study, the 3D GIS concept and the difficulties in performing a 3D GIS are described in detail, and then two different applications developed based on 3D spatial analyses are presented.

Anahtar Kelimeler

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3B CBS Gerçeklestiriminin Önündeki Zorluklar ve 3B Konumsal Analiz Uygulamaları

Öz

Yaygın olarak kullanılan Cografi Bilgi Sistemleri (CBS), analiz anlamında daha çok iki boyutlu (2B)uygulamalara imkan tanırken, günümüzde teknolojinin de gelismesi ile gerçek dünyanın birebir modellenmesini gerektiren çok daha etkin çözümlerin üretilmesine ihtiyaç duyulmaktadır. Bu da “Üç Boyutlu CBS(3B CBS)”kavramının ortaya çıkmasına neden olmustur. Bir CBS’den beklenen tüm fonksiyonları, 3B dünyadaki gerçek objelere yönelik olarak gerçeklestirebilecek düzeydeki sistemler ancak, 3B CBS olarak adlandırılabilirler. Bu açıdan her ne kadar 3B olarak anılsa da, kimi sistemler aslında 3B CBS kapsamında girmekten uzaktırlar. Bu çalısmada 3B CBS kavramı ve 3B CBS'nin gerçeklestirimi yönündeki zorluklar detaylandırılmıs, ardından 3B konumsal veri analizlerine yönelik olarak gelistirilmis olan iki farklı uygulama tanıtılmıstır.

Anahtar Kelimeler

CBS, 3B CBS, Konumsal Analizler, 3B Ağ Analizi, 3B Tampon Analizi

Kaynakça

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