International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B2. Istanbul 2004
a standardized and economical GIS solution to a wider group of
infrequent users who do not require a highly responsive GIS
server. As all of the processing is done by the server and all of
the processed information is returned to the client in the form
of HTML documents, the server-side solution demands a better
and more powerful hardware configuration for the server.
8. CONCLUSIONS
This paper provides an overview of the development of maps
(from paper to web) and particular emphasis is on the design of
web maps for navigation purpose. It has been noted that many
factors should be considered in the design of such maps. In this
paper on the following issues have been discussed:
e functions of maps;
e graphic variables;
e colour codes;
e functions of map symbols; and
e efficiency of spatial query
It has been found that the roles of maps have changed from
“display and storage” to “display and exploration” and “storage
and linking". The variables for presentations have been
expanded from traditional set of visual variables to fives set of
variables, i.e. visual variables, screen variables, dynamic
variable, exploratory acts and web variables. Using these
variable, various special symbols can be designed. It is also
discussed that the colour coding which has been in use for
years may need to be modified for such purpose. The function
of map symbols is also enriched to include "indexing" and
"pointing". In addition, when incorporating with spatial
analysis functionality, a selection of client-side or server-side
Internet mapping systems has to be made to balance
performance and functionality
ACKNOWLEDGEMENT
This project is supported by a grant from the Hong Kong
Polytechnic University (G-T591)
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