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ON DEVELOPMENT OF MANAGEMENT AND PLAN SYSTEM
FOR MAP PRODUCTION
Kazuya NAKANO, Kosuke TSURU
AERO ASAHI CORPORATION, Toyota division,3-1-1 Minamidai Kawagoe Saitama Japan
kazuya-nakano@aeroasahi.co.jp
Commission V, WG V/6
KEY WORDS: Cartography, Development, Planning, Photography, Algorithm, Visualization
ABSTRACT:
When creating a public map using digital mapping in Japan at the present time, it is legally specified that it must create according to
the following procedure in public survey operation specifications. There are 14 procedures as follows, a work plan, set up pass
points, set up air photo signals, photography, pricking, field reconnaissance survey, aerial triangulation, plotting, supplement survey,
editing, field supplement survey and supplement editing, creation of digital mapping data, creation of original drawing map and sort
out results. Our company has systematized so that work may progress smoothly about processing from the plotting to creation
original drawing map. Moreover, the trial product of a digital field reconnaissance survey system was created in 2000, and the
utilization experiment is conducted at the present time. Creation of flight plan map created in a work plan and index map which
arranges a photography result is performing analogue processing using the paper map. On the other hand, photography was
automated by the navigation system, which used GPS. Since a flight plan map was paper, exposure stations had to digitize in order
to import data to a navigation system. Therefore, the planned support system aiming at the increase in efficiency of processing by
digitization of a photography flight plan and management of comprehensive map creation was developed. We named the planned
support system the Map Square. Map Square expresses MAP? and the origin is extracting the initial of the Management And Plan
system for MAP production.
This paper describes the generating algorithm of photography flight plan line in the Management And Plan system for MAP
production and the visualization of a flight simulation which used the photography flight plan line as application.
1. CONSIDERATION OF THE GENERATING
ALGORITHM
We classified about the photography flight plan line generating
method according to the object of map creation. The
photography flight plan is classified into two types of a polygon
and a route according to the form of the map creation range. In
the photography flight plan for a polygon, according to the SC NS n
contents, the plan of three types is needed. le».
The 3types are as follows, photography scale priority that
adjusts the flight altitude for the large scale map, flight altitude
priority that fixed flight altitude for the medium scale map, fix
flight datum plane is used for fixed-assets business, and does
not take the geographical feature into consideration.
1.1 Geographical feature
Geographical feature information was examined in performing
the photography plan in consideration of geographical feature.
DEM of 50 m and 250 m mesh was published by the
Geographical Survey Institute, and we adopted 50 m mesh, in
order to use detailed information. However, since it became the
cause of an increase of hypertrophy of geographical feature DB,
and processing time, we decided to adopt DEM of 250 m
meshes.
1.2 Photography scale priority
Photography scale priority is generated with the following
concept in consideration of geographical feature. *%
Figure 1. Photography scale priority concept
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