Maurizio Coda and Andrea Deiana on "Province of Ogliastra’s GIS services and 3D"

1. Province of Ogliastra’s GIS services and 3D
Cagliari
10/12
May
2012

2. Province of Ogliastra’s GIS services and 3D
The adaptation to the Regional Landscape Plan
• Province of Ogliastra is a young administration established in
2001 through enactment of a regional law by the Autonomous
Region of Sardinia.
• Following the entry into force, in 2006, of the Regional
Landscape Plan (PPR) of the Autonomous Region of Sardinia
(RAS), the Province of Ogliastra undertook the process of
upgrading its Provincial Urban Plan (PUP) to the above
mentioned PPR and to the Hydrogeological Plan (PAI).
• 1° Phase: a large amount of data, mostly derived from the old
PUP of the Province of Nuoro.
Cagliari
10/12
May
2012

3. Province of Ogliastra’s GIS services and 3D
The reordering of knowledge
• In 2° phase, called the "reordering of knowledge", analyzes and
processes of adaptation of the Provincia of Ogliastra’s PUP to
PPR have been partly replaced and partly implemented by
integrating into the system the large amount of information
material made available by the RAS:
– updated orthophotomaps;
– geodatabase in scale 1:10.000;
– Digital Terrain Models (DTM) and a list of different thematic maps.
• A new series of territorial analysis has been produced, later
used both at the provincial and at the municipal level.
Cagliari
10/12
May
2012

4. Province of Ogliastra’s GIS services and 3D
Support to municipalities and shared planning
• In a 3° phase of "co-planning," the Planning Office of the
Province of Ogliastra took then an active role in supporting of
the planning offices of its inner 23 municipalities, providing:
– the analysis already performed plus GIS software and hardware tools;
– its experts’ technical support for the definition of all the assets covered
by Regional Landscape Plan (PPR).
• In parallel, the Planning Office of the Province of Ogliastra has
supported the same above mentioned single municipalities’
working groups with different moments of training, followed by
a targeted coaching in the ordinary working activities.
Cagliari
10/12
May
2012

5. Province of Ogliastra’s GIS services and 3D
Lessons learned and new opportunities
• What finally emerged is the need to have an increased
availability of spatial analysis tools that would allow to solve
common problems, related to the territory planning, design and
control activities: an increasing number of operators asking for
support showed an real interest in GIS technology.
• Simultaneously, the Cartographic Office of the RAS was offering
a further huge amount of data produced under the new
Regional Land Information System (SITR):
– LIDAR datasets with relative orthophotos;
– various types of high-resolution DTM, satellite imagery.
Cagliari
10/12
May
2012

6. Province of Ogliastra’s GIS services and 3D
3D Web GIS 3D and SkylineGlobe technology
• After about 10 years, from all this context emerges the need to
have a GIS analysis tool that would give the possibility to exploit
the elevation sources to have a vision of the area in three
dimensions.
• Thus, the adoption of a 3D GIS platform, comprehensive of a
great WebGIS client/server solution, to create a photorealistic
and high-performance navigator, for interactive 3D visualization
and querying of spatial data.
• The choice, after appropriate analysis of competing solutions,
has settled over the SkylineGlobe technology.
Cagliari
10/12
May
2012

7. Province of Ogliastra’s GIS services and 3D
3D base terrain creation
• The production of the 3D map used as a basis for the 3D WebGIS
implementation was performed in outsourcing at GeoInfoLab:
this option has allowed to break down dramatically (over than
one thousand percent) the costs related both to Skyline
TerraBuilder’s necessary license and to the experience needed
in order to obtain quickly the best result possible from the
source files available.
• The only file produced in a global MPT v2.0 format, in a Skyline
TerraBuilder v1.7 multiprocessor environment, has reached a
dimension of about 36.2 GB.
Cagliari
10/12
May
2012

8. Province of Ogliastra’s GIS services and 3D
Cagliari
10/12
May
2012

9. Province of Ogliastra’s GIS services and 3D
3D base terrain creation
• In fact it is a result of the merging of the following different
main sources:
– 10 meters/pixel elevation source, made available in ESRI GRID format for
all the Province of Ogliastra (about 1,52 GB);
– 1 meter/pixel elevation source, made available only for coastal zones of
the Province of Ogliastra in ASCII format (about 3,93 GB);
– 50 centimetres/pixel image source, made available in 24 bit colour TIFF
format for all the Province of Ogliastra (about 30,9 GB);
– 20 centimetres/pixel image source, made available only for coastal zones
of the Province of Ogliastra in colour ECW format (about 1,18 GB).
Cagliari
10/12
May
2012

10. Province of Ogliastra’s GIS services and 3D
3D base terrain creation
• Areas outer the Province of Ogliastra, considered less
interesting for the project, have been covered by image and
elevation sources with different decreasing levels of resolution:
– 20 meters/pixel for elevation source of the whole Sardinia;
– 300 meters/pixel for image source of the whole Italy (Sardinia included);
– 1,22 kilometres/pixel for elevation source of the whole Italy (Sardinia
excluded);
– 4,89 kilometres/pixel for image source of the rest of the globe;
– 19,57 kilometres/pixel for elevation source of the rest of the globe.
Cagliari
10/12
May
2012

11. Province of Ogliastra’s GIS services and 3D
Integrating and querying the information
• In this phase, the environment used is Skyline TerraExplorer Pro
which allows to integrate the MPT files, with the additional
information of interest:
– GIS layer, made available in various formats and coordinate systems
(either locally or on a/the network);
– scripts;
– images;
– audio/videos content;
– 3D objects;
– point clouds from laser scan acquisitions;
– …
Cagliari
10/12
May
2012

12. Province of Ogliastra’s GIS services and 3D
Cagliari
10/12
May
2012

13. Province of Ogliastra’s GIS services and 3D
Integrating and querying the information
• The graphical interface includes the main 3D navigation window
and the structure of all the information integrated.
• Skyline TerraExplorer Pro environment allows to launch quickly
and intuitively several 3D analysis (contour, slope with
directions, terrain profile, best path, flood, volume, viewshed,
shadow).
• Other interesting tools are underground navigation, interfacing
GPS devices via NMEA protocol, network sharing of
collaborative sessions, pipe and power line tools, audio/video
feeds integration, 3D object import and urban design.
Cagliari
10/12
May
2012

14. Province of Ogliastra’s GIS services and 3D
Cagliari
10/12
May
2012

15. Province of Ogliastra’s GIS services and 3D
Integrating and querying the information
• Once operator has finished the integration of information, he
can save the project in the proprietary FLY format.
• This stores all the information (paths and properties) related to
all the resources involved (MPT file, GIS layers and other
sources), and can then be used to create digital media kits or to
publish 3D WebGIS projects on the Internet.
• Anyone can freely download and install the Skyline
TerraExplorer Viewer application, in order to access and query
the so published projects and all the information there
integrated.
Cagliari
10/12
May
2012

16. Province of Ogliastra’s GIS services and 3D
Streaming the 3D terrain
• Given the considerable size of the 3D terrain, the navigation
through the Internet requires an application server able to
deliver this information seamless in streaming: the Skyline
TerraGate streaming server.
• A Skyline TerraGate license supporting up to 25 concurrent
connections let the various TerraExplorer clients (Pro Plus or
Viewer) query simultaneously different portions of the MPT.
• For each streaming session, the TerraGate Manager records:
client IP address, date and start time of the session, its duration
and total volume of data provided.
Cagliari
10/12
May
2012

17. Province of Ogliastra’s GIS services and 3D
Streaming the layers
• A further saving of money comes for the delivery of layers, a
task accomplished by GeoServer, an open-source certified OGC
compliant server solution.
• The vector layers are loaded on the server disk space in the
Shapefile format, and then uploaded and managed by
GeoServer server application, which delivers them on-demand
via WFS protocol. The published FLY project include information
for the directly loading from GeoServer.
• Implementation of raster layers’ streaming through WMS
protocol, always via GeoServer, is expected in a next phase.
Cagliari
10/12
May
2012

18. Province of Ogliastra’s GIS services and 3D
Potential of the 3D WebGIS by Skyline
• The possibilities offered by the use of 3D WebGIS by Skyline are
truly remarkable. The main fields of application and interest for
the Province of Ogliastra ranging from land and environmental
planning, to tourism and cultural promotion, from civil defense
and safety, to transport services and infrastructures.
• The Planning Office of the Province of Ogliastra is preparing new
updated geodatasets on a provincial scale, containing
information relating to the Provincial Coordination Territorial
Plan, the Provincial Transport Plan, the Provincial Energy Plan,
the Civil Protection Plan, the Wildlife and Hunting Plan, ....
Cagliari
10/12
May
2012

19. Province of Ogliastra’s GIS services and 3D
Enhancement and promotion of local trails
• In higher detail, the use of this 3D WebGIS platform is currently
being studied within the project called "routes" managed by
GAL Ogliastra. This project involves the same Province of
Ogliastra, as leader, and all its 23 municipalities, in the
development of a provincial network of routes, with particular
emphasis on the enhancement of the local paths’ network.
• The application designed will have to publish and promote in
the 3D WebGIS platform the itineraries and paths, which will
also be available for the download in formats used for GPS
devices, iPhones and Android mobile platform.
Cagliari
10/12
May
2012

20. Province of Ogliastra’s GIS services and 3D
Thank you !
Maurizio Coda
m.coda@provincia.ogliastra.it
Andrea Deiana
andrea.deiana@geoinfolab.com
Cagliari
10/12
May
2012