COMMUNICATION MODEL OF CARTOGRAPHIC INFORMATION
IN DIGITAL CONDITION
Fenli JIA, Guomin Song, Xiong YOU
4 Department,Institute of Surveying and Mapping, Information
Engineering University,Zhengzhou, china
Jerry_chn@tom.com
Abstract: The communication model of
cartographic information whose channel is paper map or electronic map lays a
strong emphasis on the study of the information communication process which
people are the main body. Digital map enlarges application domain of map, in
especial, direct use of digital map makes the information communication not
only exists among people, but also exists between people and information
system, and among information systems. Therefore, this paper argues a
communication model of cartographic information in digital condition which is
based on the communication model of A.Kolacny, in order to depict the change of
cartography by and large. Four channels to transfer information by real map and
digital map in this model are listed and explained; especially the differ to
the traditional communication model of cartographic information is analyzed.
This paper brings forward two levels of information communication also: graph
and digital level and semantic level. Finally, analyses the reason of
information loss. The communication model argued by this paper contains some
hot research directions at present in Cartography; they are placed at proper
positions, such as Spatial Data Visualization, digitalization, Geo-spatial Data
Sharing etc. So this model incarnates the more holistic architecture of
Cartography than ever. Limited to length, the ways improving efficiency of
information communication are not discussed.
Key
Words:
Digital Map; Geo-Spatial Information; Communication Model of Cartographic
Information