Integration of conventional web-based GIS and GLOBALBASE using geometric transformations and high-level middleware
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Date
2008-06
Authors
Maulana Abdul Aziz
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Abstract
GLOBALBASE, a GIS application having autonomous distributed as its architecture,
provides a new method in sharing spatial data. This system does not have restriction that
leads into limitation on spatial format. Through the system, data provider can share their data
from numerous distributed servers without any restriction from a spatial information control
center. Nevertheless, the number of spatial data existed grows in a rapid acceleration.
Currently, the existence embeddable web-based GIS applications bring a new way in
beneficiating spatial data.
The intent of this thesis is to design GIS application that is able to obtain spatial data
from different GIS platforms. Here, we try to enhance GLOBALBASE functions so that
system can receive and integrate its spatial data with Google Maps, a web-based GIS. To
achieve this state, interoperability between spatial attributes on both systems is become a
requirement. Moreover, a method enabling GLOBALBASE client to obtain and represent
spatial data from Google Maps is necessitated.
Our attempt is to propose transformation methods on spatial attributes so that
interoperability between spatial data can be obtained. We also design a high-level
middleware that will enable GLOBALBASE client called Cosmos accessing the Google
Maps spatial data. In addition, we also enhance Cosmos with several additional functions
that will enable the client receiving and representing Google Maps spatial data.
We conduct several experiments to evaluate the proposed methods along with to test
the ability of the high-level middleware. The experimental results we obtained show that, in
general, the transformation methods can meet a certain level of accuracy.
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GLOBALBASE, a GIS application having autonomous distributed as its architecture , provides a new method in sharing spatial data