Deiana & Coda - input2012

Province of Ogliastra’s GIS services and 3D

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2012201220122012MayMayMayMay


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

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• 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.


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

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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.


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;

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– 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.


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

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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.


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.

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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.


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

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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.


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• 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);

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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).



• 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;

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– 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.


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

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– 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;

– …


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• 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

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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.


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• 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

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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.


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.

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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.


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

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• 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.


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

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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, ....


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

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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.


Thank you !

Maurizio Coda

[email protected]

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[email protected]

Andrea Deiana

[email protected]

Deiana & Coda - input2012

Technology

Transcript of Deiana & Coda - input2012