Data Visualisation Facilities

Overview

Data Visualisation facilities include a set of features, software and methods for performing visualisation of data stored in the D4Science e-Infrastructure. Data Visualisation is particularly meant for geo-spatial data, which is a kind of information that naturally lends to visualisation. Data are reproduced on interactive maps and can be explored by means of several inspection tools. The adopted paradigm for maps visualisation needs to query a central GeoNetwork instance that indexes several geo-spatial data sources.

Issues regarding data to be visualised involve their preparation for being displayed: common GIS visualisation tools use WMS or WFS protocols for getting information about the tiles that make up an image. This means that data need to be transformed from their original format to a known, processable format. For such aim, the Data Visualisation facilities involve procedures for transforming raw geo-spatial data into gis visualisers-compliant formats. Other processes can transform such data from a format to another.

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 investigating 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;

Specifications

GIS Viewer

a tool for visual analysis of geospatial layers stored on a GeoServer or remotely published by WFS or WMS protocols;

Geo Explorer

a tool for search and browse geo-spatial data sets spread in a number of data providers linked to the infrastructure;

Tiff Uploader

a tool for transforming geo-spatial data from a format into another accepted by common GIS visualisers