Geoscience Reference
In-Depth Information
data input, however the decoder provides advantages for medium-client and thick-
client usage, as well as within web services transactions.
The information retrieval procedures for decoder allow geometries array output
from queried data; tag-search capability to decode content on-the-fly or even raw
CityGML output. This gains flexibility for different client side applications. The
current modules available are such as routing module, geometry module, URI
module, element module, attribute module, and value module. Routing module
searches and parses related information from all the other modules. Routing
modules retrieved information and parses information in key value pair (KVP)
formatting. Specified query could be adapted into the module to retrieve particular
information without going through full decompression.
6 Concluding Remarks
In this chapter we discussed briefly the CitySAC encoder and how a decoder could
be deployed considering platform-independent client side using existing javascript
libraries and in-house developed decoder. The output of the decoded information is
readable therefore interoperability is achieved on top of binary streamed data. We
also demonstrated the workflow of the decoder and how user could retrieve infor-
mation from the encoded data stream. In future, the encoder-decoder will apply in
the use-case of city modelling for Putrajaya 3D Corporation, Malaysia via MaCGDI
server. The applications will be extended into mobile devices where simple query
from mobile devices that utilizes HTML5 will be executed and retrieved encoded
information via this javascript decoder deployed in mobile devices.
Acknowledgments We would like to convey our deepest acknowledgement to Ministry of
Higher Education (MOHE), Malaysia for the scholarship under the program MyPhD, MyBrain15
and enabling us to carry out this research project.
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