Difference between revisions of "Geospatial Data Visualization"

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*Geo Server: a software allowing users to share and edit geospatial data.
 
*Geo Server: a software allowing users to share and edit geospatial data.
  
In summary, the Geospatial Data Discovery system provides ''distributed, researchable or to be generated, environmental features associated to geographical points or areas''.
+
In summary, the Geospatial Data Visualization system provides a ''unique access for visualizing, retrieving and analyzing distributed geospatial data''.
  
 
== Key Features ==
 
== Key Features ==
  
;uniform model and access API over environmental data
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;uniform access over geospatial GIS layers
:heterogeneous external datasources investigation;
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:investigation over layers indexed by GeoNetwork;
:uniform access to OGC compliant services.
+
:visualization of distributed layers;
 +
:add of remote layers published in standard OGC formats (WMS or WFS).
  
;pluggable external sources
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;Filtering and analysis capabilities
:a plug-in based architecture allows for an easy attachment of new datasources.
+
:possibility to perform CQL filters on layers;
 +
:possibility to trace transect charts;
 +
:possibility to select areas for investigate on environmental features.
  
;data consumption with OGC standard protocols
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;Search and indexing capabilities
:it is possible to produce data under standard protocols like WFS, WCS, WMS etc.;
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:possibility to sort over titles on a huge quantity of layers;
:it is possible to perform processing requests by means of standard protocols, like WPS.
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:possibility to search over titles and names on a huge quantity of layers;
 +
:possibility to index layers by invoking GeoNetwork functionalities.
  
 
== Subsystems ==
 
== Subsystems ==
  
Geospatial Data Discovery clusters within the following component:
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Geospatial Data Visualization clusters within the following components:
  
 
;The [https://gcube.wiki.gcube-system.org/gcube/index.php/Gis_Viewer Gis Viewer]
 
;The [https://gcube.wiki.gcube-system.org/gcube/index.php/Gis_Viewer Gis Viewer]
 +
:a visualizer for geospatial layers stored on a GeoServer or remotely published by WFS or WMS protocols.
 
;The [https://gcube.wiki.gcube-system.org/gcube/index.php/Geo_Explorer Geo Explorer]
 
;The [https://gcube.wiki.gcube-system.org/gcube/index.php/Geo_Explorer Geo Explorer]
 +
:a search tool for layers residing on a GeoNewtork or a GeoServer.

Revision as of 11:44, 18 May 2012

Data visualization for geospatial data, that means tabular data with associated geographical indications, is a crucial functionality. It allows scientists to investigate on produced distribution probability maps, to analyze the results of some geospatial processing or to retrieve graphically the distribution of environmental features. The number of elements making up a distributed storage system for geographical layers can be difficult to setup, along with a visualization utility for that. The Geospatial Data Visualization is a set of utilities for retrieving and visualizing information stored on a distributed geospatial layers network.

This document outlines the design rationale and high-level architecture of such components.

Overview

Geospatial Data Visualization provides the following facilities:

  • the ability to retrieve layers from a distributed network based on the GeoNetwork software;
  • the ability to visualize layers coming from different kind of datasources;
  • the ability to add, modify and investigate those layers from a graphical interface.

The entire system is helped by the following technology:

  • Geo Network: a software for realizing a distributed network of WMS or WFS layers;
  • Geo Server: a software allowing users to share and edit geospatial data.

In summary, the Geospatial Data Visualization system provides a unique access for visualizing, retrieving and analyzing distributed geospatial data.

Key Features

uniform access over geospatial GIS layers
investigation over layers indexed by GeoNetwork;
visualization of distributed layers;
add of remote layers published in standard OGC formats (WMS or WFS).
Filtering and analysis capabilities
possibility to perform CQL filters on layers;
possibility to trace transect charts;
possibility to select areas for investigate on environmental features.
Search and indexing capabilities
possibility to sort over titles on a huge quantity of layers;
possibility to search over titles and names on a huge quantity of layers;
possibility to index layers by invoking GeoNetwork functionalities.

Subsystems

Geospatial Data Visualization clusters within the following components:

The Gis Viewer
a visualizer for geospatial layers stored on a GeoServer or remotely published by WFS or WMS protocols.
The Geo Explorer
a search tool for layers residing on a GeoNewtork or a GeoServer.