MGCP
Multinational Geospatial Co-production
Program
Production of a test cell
Ottó Brunbauer
Hungarian Geodetic and Mapping Company Ltd.,
Head of Department for GIS
Conference 16.11.2006.
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Overview of the Project I.
Background of the project:
• In April 2003, the countries making in a common workgroup (VaCWG) the world’s digital
map in a scale of 1:250 000 held a conference in Vancouver. There the USA’s National
Geospatial Intelligence Agency initiated -after the accomplishment of the 1:250 000 scale
mapping project, with the wider collaboration of the geospatial intelligence agencies- the
starting of a new, Multinational Geospatial Co-production Program.
• The objective of the project is the creation of an up-to-date digital map database in
1:50 000 and 1:100 000 scales, based on cells of 1° x 1° adjoined geographical coordinates.
This database meets the national / international requirements of anti-terrorism and other
global tasks. As a result, there will be vectoral maps of the world available for the
participating countries in the ratio of their cooperation.
• Another objective of the project, in the interest of time- and cost-efficiency, that the
creation of paper based maps to be limited only for the areas of necessity. This assures that
the geospatial data is always up-to-date and it is sent to the participants in a timely and
adequate manner.
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Overview of the Project II.
Implementation of the project in Hungary:
Responsible for the execution of the project:
Ministry of Defense Mapping Office
Leader of practical execution:
Ministry of Defense Mapping Company Coordination Agency
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Overview of the Project III.
Objective: Creation of a digital GIS database which
is consistent with the data density of 1:50
000 scale topographic maps,10x10, on an
area of altogether 8533km2
Duration: 2005 october – 2006 december
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The Field of Work
1ºx1º cell – 24 segments
317 pcs. ortophotos ~ 200 GByte
47º0’00’’
19º0’00’’
46º0’00’’ 18º0’00’’
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Raw Data I.
a) The evaluation is primarily based on the raw data of an
ortophoto with 50cm field resolution made by the Institute
of Geodesy, Cartography and Remote Sensing under the
project “Areial Photography of Hungary 2005”.
b) Scanned and georeferred files of military topographic
maps in 1:50.000 scale (resolution: 200 dpi; system of
reference: UTM/WGS84; format: GEOTIFF)
c) Gazetteer of Hungary (KSH, 2003-2005)
d) GeoNames database
e) Register of geodetic points
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Raw Data II.
f) Database of towers and high buildings
g) Database of airports and runways
h) Legend for the deliverable controlling map sheet (GeoSym
legend)
i) DVOF datafile for the area
j) AAFIF datafile for the area
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Reference System of the Raw Data
Digital ortophotos
Topographical maps in 1:50000 scale
DVOF
AAFIF
GEONAMES
G.BASE
POINTS
Primary raw material
Databases Auxiliary raw material
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The evaluation covers:
a) surface topology (surface objects)
b) buildings and structures
c) hidrogeology (drainage network, dams, flood gates…)
d) air transport (airports...)
e) road transport (road network, bridges and dependecies
of decks...)
f) railway transport
g) Earth and its vegetation
h) public power plants (power plant)
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Definitons, terms
Object : Abstraction of the actual phenomena.
Object attribute : Charasterictics of a given object.
Surface : Two dimensional topological primitive.
The geometrical realization of the
surface is the interface.
To every object belongs an attribute table which contains the
typical features of the object. The filling of this table with data
is being done side by side with the vectoral data extraction.
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Topological Model
The bases of the semantical model are the objects which are settled
to each other in a given reference system.
Point-like objects
Functional and other surface
objects
Linear objects
Land cover objects
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Features of Objects
The features of the
objects are specified
with the filling of the
attribute table.
Object attribute table
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Principles of Evaluation I.
Terms and principles of evaluation of the objects:
• good quality of the ortophoto for identification – the digital image
material must be always considered as the most reliable source,
especially in regard to the geometric information
• unreliable quality of the ortophoto for identification – additional
digital and printed sources are serving as reference and auxiliary
material. These are helpful in situations when certain information
aren’t at all or not properly displayed on the image material
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Principles of Evaluation II.
Classification of objects:
• Mandatory
Must be evaluated in every case
• Conditional
• Optional : Can be evaluated if they are unambiguously
identifiable on the ortophoto, but their evaluation is not
mandatory
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Principles of Evaluation III.
Classification of attributes of the objects:
• Mandatory : Must be given in every case
• Conditional
Not mandatory to be given
• Optional
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Rules of Data Extraction and accuracy I.
The objects are coded by DIGEST (Digital Geographic Information
Exchange Standard) Feature Attribute Coding Catalog.
MGCP’s Technical Reference Document defines the list of obejcts and
attributes that are considered as the minimal content of the generated
data in the program’s frame.
During the evaluation of the objects the maximal acceptable
error (absolute error, three times the medium error) is 25m
(CE90%), namely the medium error cannot exceed ±8.3m.
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Rules of Data Extraction and accuracy II.
Technical Documents:
• Specification of metadata
• Semantical interpreter model
• Evaluation guide
• Catalog of objects and attributes
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Evaluation Guide I.
Content:
• Basic evaluating guide,
• well-established procedures and expectations,
• rules in regard to representation and completeness adjusted to
each object,
• hyperlink to the detailed evaluation guides in regard to each
object,
• hyperlinks to other auxiliary documents of MGCP.
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Evaluation Guide II.
Table of Contents:
…
Rule system of MGCP’s Evaluation Guide
AAFIF general questions
General questions of barrier objects
General questions in regard to the
hidrogeology
Examples of MGCP object code
dependent files
..
.
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Evaluation Guide III.
General examples of
object classes,
illustrated with figures.
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Evaluation Guide IV.
Conditions of
evaluation for each
object, assistance,
illustrated with pictures
and figures.
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Feature and Attribute Catalog
Attributes
belonging to
specific objects
and the list of their
possible value.
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Hardware/Software Environment
Hardware :
• A network consisting of a server and clients that are
communicating with each other in a closed intranet
• Strong VGA card and processor both on the client and the
server side, SCSI HDDs
Software :
• Intergraph – Geomedia Professional 6.0 + GIPS (Geo-
Intelligence Production System)
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Software Interface I.
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Software Interface II.
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Software Interface III.
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Work Management
MGCP Coordination Office
Intergraph Professional consultations,
software experts FTP server basics of technology,
qualification, weekly
supervision of execution
Secure exchange,
Technical assistance, storage and
guidance, providing supply of datafiles
software components The firm
doing the
final
supervision
Geodezia Co. Ltd.
Department for GIS
(technology, project lead,
internal supervision)
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Abstract
• Complex, based on up-to-date technology
• Requires high organization and expertise
• A project creating possibilities that are heading
towards the future
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Thank you for your
attention!
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