Geography Reference
In-Depth Information
Later subprograms were designed for seismic and tsunami data processing
in various samples from databases in ETDB, in addition to updated Digital
Mapping [16]. Visualization of digital mapping was implemented in several
projections (geographical, orthographical, etc.). The system required
geographical and geophysical data, which either were unavailable to the
developers or did not exist in the digital format. To provide the system tools
with such data, an interactive system was developed for digitizing bathymetric
and other paper maps [17-18]. Specifically, the same approach was used to
create vector data of seismogenic faults in some areas of the Russian Far East
and a new detailed bathymetry grid for areas around the Kamchatka Peninsula
and the Kuriles [19-20].
The following versions of geographic information systems created using
the above achievements of the authors appeared in the 2000s and covered new
subject areas of geology and geophysics. The ETDB, EEDB, and ENDDB
systems all share the same structure and represent a set of interacting software
units: a relevant database subsystem (tsunami, earthquake, or impact structure
databases), a geographic subsystem, and a subsystem for data analysis, joined
in the user interface part. The first unit in the prototype systems we developed
before ENDDB and applied to tsunami research [14, 21, 22] contained an
earthquake and tsunami database, while in its latest modification ENDDB was
a database of earthquakes and impact structures.
The
user interface part
of the systems have changed significantly, from
graphical shell functioning in the MS-DOS environment (Figure 1), with
Turbo-Pascal
tools, limited by the resolution of the EGA and VGA graphic
adapters, to the up-to-date
Windows
standards of menus and dialogs (Figure
2), produced by means of the MFC-library.
The environment formed by this
library defines the skeleton of the application to be developed and provides the
developer with standard tools of creating a multi-window interface. The first
prototype (WinETDB-project) of the Windows-95 user interface was created
by Denis Ivaykin, Alexander Lyskovskiy, and Ekaterina Chernykh, students of
the Higher College for Information Theory at Novosibirsk University, who
also converted the geographical subsystem into the Visual C++ codes [22, 23].
Recently A. Mikheeva has adapted the development environment and all
subsystems of ENDDB to a 64-bit platform, and made a new version of the
package for
Windows
7 and 8.
The same work was carried out for the
environment of supported applications designed specially to complement the
resources of ENDDB. The codes of the main program and its supported
applications were translated to the standards of the latest
Visual Studio
and
Firefox
versions. One such application, a new converter of seismological
