PROCESSING
TECHNIQUES FOR constructing AND
UPDATING UNIFIED GEOINFORMATIONAL SPACE
S.P.Nefedov, T.A.Khlebnikova
Firm "Sibgeoinform"
info@sibgi.ru
In 2006 firm "Sibgeoinform" under the order of Federal Geodesy and
Cartography Agency has developed
processing technique for building and updating unified geoinformational space on terrain of Russian
Federation subjects on the basis of space survey substances.
The unified geoinformational space in
represented processing technique is perceived as set of space objects in their
complete geometrical, semantic and graphicssort, divided on subject layers
according to the adopted classification of objects.
The Processing technique provides:
1) Building of unified
geoinformation space on the basis of the digital topographic map in scale of
1:100 000.
2) Up-dating of unified
geoinformation space on substances of space survey.
The unified geoinformation space is
created in unified geodetic coordinate system and actuates a panel of
topography complete object layers (without cutting under frames of nomenclature
pages).
Space data massifs on terrain are bound among themselves by the
unified mathematical basis, allowing to execute transformation of the digital
subject information acting in a geointelligence system in various coordinate
systems to unified state coordinate system.
Program-technological means of
processing technique provide:
- uptaking and transformation to unified
coordinate system of the compiled or renovated digital topographic map
information for building unified geoinformation space;
- a transformation of object
coordinates presented in various coordinate systems (1942, 1963) and bands in
system SK - 95;
- check of the digital topographical
information used for building of unified geoinformation space, on a topological
correctness on layers{stratums} and between layers and, in case of its
breaking, building of topologically correct digital district model;
- the automatic report of topographic objects
in unified coordinate system on the set terrain under frames of nomenclature
pages with obtaining complete objects on the basis of their components;
- updating unified geoinformational
space by means of digital photogrammetric instruments on substances of space survey;
-
material handling of space survey with the purpose of obtaining ortophotomaps;
- uptaking in GIS ortophotomaps in raster sort for updating
spacedata or for building the raster map on terrain.
The software providing fulfilment for
all processes of processing technique are developed on the basis of GIS-program
MAGIS (design of firm " Sibgeoinform ").
Within the limits of processing
technique:
1) the unified geoinformation space
on a part of Novosibirsk range terrain on the digital topographic map in scale
of 1:100 000 (140 pages). It was prepared by firm "Sibgeoinform"
under the order of
Federal Geodesy and Cartography Agency.
2) the Unified
geoinformational space is renovated on substances of space survey (the space images
are received by the Monitor-Ý 53 by means of pankhromatic film-making hardware, with the resolution
of 8.072 m, 5/5/2006).
The
created unified geoinformational space allows solving various applied problems
operating with complete objects on terrain, including, grounded on space data
usage for space analysis, on any segment of terrain and any panel of thematic
layers.