International Archives of the Photogrammetry, Remote Sensing and Spatial Information Scie 
s c - [o] : 
and to stack images ffrom different services in order to make 
the needed thematic map. 
The OGC WFS interface running on the top of the Map server 
distributes data as a GML file, therefore users can integrate or 
import these data and their attribute into their own GIS 
application. 
5.3 Web Mapping application 
The Web Mapping application has been implemented following 
a modular approach and it is made up of the following software 
modules: 
- an HTML based Web Mapping Interface; 
- a flexible map tool to be integrated into the other Web 
pages; 
- a paper map preparation wizard allowing users to prepare 
printed paper maps and atlases; 
- an administration module allowing to define new maps, to 
manage user privileges and authentication. 
The standard HTML based interface is a set of HTML pages 
and JavaScript functions allowing users to access predefined 
maps using a web browser. This software modules in founded 
on the ESRI ArcIMS HTML based interface. The standard code 
coming with the software has been customized and integrated in 
order to: 
- integrate into the map layers any OGC images produced 
by a standard OGC WMS; 
- improve the printing functionalities so that paper size and 
resolution can be defined by the users; 
_ translate the messages, controls and other text of the GUI 
in [talian language. 
The Flexible Web Mapping Tool (FWMT) consists of a set of 
Java Server Pages allowing users to integrate both maps and a 
map interface in almost any web pages. This tool is URL-driven 
and specifying a set of parameters into the URL allows users to 
set interface and map extent and position into the pages 
The FMTW support the visualisation of OGC layers and it is 
based on the code implemented for a previous project carried 
out by one of the authors in the field of emergency mapping 
and makes use of ArcIMS as map engine. 
The paper map presentation wizard consists on a set of PHP 
pages allowing the users to set paper size, scale and layout of 
the desired final map produced as a PDF file and delivered 
through the Internet. 
6. CONCLUSIONS 
According to the final product an to the brief testing experience 
so far carried out it is believed that Web mapping techniques 
together with the adoption of OGC specification and standards 
seems to be an optimal solution to distribute geological data and 
maps to a large and heterogeneous public. 
The authors think that the ongoing adoption of ISO standard 
and the growing interest for National and European Spatial Data 
Infrastructure will provide a really interoperable and multi- 
disciplinary environment. 
Without any doubt a series of issues remain to be considered 
and solved. It is the case of the high costs of Web Mapping and 
Spatial Database software, of the band width and computing 
power needed to run effectively some distribute application and 
last bust not less important the usability of the mapping 
environment for common users. 
nces, Vol XXXV, Part B4. Istanbul 2004 
7. REFERENCES 
Asch, K., 2003. Maps, Geologists and the impact of IT: is there 
a need for Digital Geological Standards?, IV 
European Congress on Regional Geoscientific 
Cartography and Information Systems, Bologna. 
Cara, P. et al., 1993. Il disegno logico della base dati 
informativa territoriale del Sistema Informativo 
Geologico Nazionale. Bollettini del Servizio 
Geologico d'Italia, CVX: 15-46. 
ESRI, 2003a. Spatial Data Standards and GIS Interoperability, 
ESRI, Redlands,CA. 
Fantozzi, P.L., Garberi, M.L., Graziosi, B., Visicchio, F. and 
Artioli, G.P., 2001. Aspetti tecnici e metodologici 
delle procedure di collaudo della banca dati geologici 
del programma CARG, V Conferenza Nazionale 
ASITA, Rimini. 
Harmon, J.E. and Anderson, J.A., 2003. The designing and 
implementation of Geographic Information Systems. 
John Wiley & Sons,Inc., Hoboken, New Jersey, 264 
PP- 
ISOTC211, Geographic Information/ Geomatics - 19115 
Metadata. 
Peng, Z. and Tsou, M., 2003. Internet GIS: Distributed 
Geographic Information Services for the Internet and 
Wireless Networks. John Wiley & Sons Inc, 
Hoboken, NJ. 
Shekhar, S. and Chawla, S., 2002. Spatial Databases: A Tour. 
Prentice Hall. 
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