Geopatial Visualization Documentation

General

The Geoanalytics Platform is a Web GIS solution that facilitates analysts and scientists to visualize and manage geospatial information. Furthermore, it enables them to run complex analysis over an area of interest and extract valuable information based on various factors.
A brief overview of the facilities that the platform provides, as well as a description of how these services operate, will be presented in the following chapters.

Project Management & Decision Support System

The Geoanalytics Platform offers the ability to the users to create and maintain projects with various authorization options. A project is defined as a set of geospatial datasets (layers) and a set of algorithms that can be combined in order to produce new layers containing the results of an analysis. Shared projects can be defined in which multiple users can collaborate and contribute their work. Furthermore, users can create their own private projects in order to perform their work undistracted and there is also the ability to define public projects that any user can access. The following figure presents the main page of the Geoanalytics Platform in which users can see the projects that they are associated with.

01 - User Projects.png

During the project's creation phase, users select on the map the main area that they are interested to run a geospatial analysis.

02 - New project - Area of interest selection.png

Furthermore, they specify the layers that they want to take part in the project.

03 - Layer selection.png

The user should also specify which users or group of users can have access to the project.

04 - Authorization.png

And finally, a name and a description of the project should be filled in order this project to be easily discoverable.

05 - General Information.png

As soon as a project is created or selected, the user is redirected to the decision support page in which the layers that participate in the project can be visualized.

06 - Layer Visualization.png

Additionally, the user can execute an analysis function by selecting one of the available algorithms, specifying an area and setting certain parameters.

07 - Layer Details.png

By clicking on a specific point on the map, a pop up is opening presenting the attribute values contained in the shapes of this point.

Administrator Facilities

The administrator facilities include tools that enable VRE managers to import new datasets and algorithms or configure the existing ones. As presented in the following screenshot, the layers that are available in a VRE are listed and several actions can be performed such as edit the details of a layer, render it, permanently delete it, edit its attributes or download it in the form of shapefile/geotiff.

01 - Layer management - Layer listing.png

The user can modify the name, the description or the style of the layer.

02 - Layer management - Layer editing.png

Furthermore, the user can change which attributes of a layer are visible and also change the label or the order that they will be presented.

03 - Layer management - Layer attribute editing.png

The user is also able to publish the layer to GeoNetwork/Catalogue and make its metadata available to the public.

04 - Layer management - Geonetwork - Catalogue publishing.png

The tags of each layer are used in order to enrich search facilities and they can be edited by the admin tool.

05 - Tag management.png

In addition, VRE managers are able to upload a new layer style and assign it to a layer.

06 - Style management - Styles listing.png

As displayed in the following screenshot, in order to define a new style, users may upload an xml file in sld compatible format.

07 - Style management - Style creation.png

The administration tools also offer the opportunity to import data of various formats. Figure 34 displays the TSV importer in which users can select a TSV file, the geocode system that it references and the style of the generated layer and import the data as a geospatial layer. TSV importer is helpful particularly for importing data from statistical sources.

08 - Import data - TSV files.png

The WFS importer is reading from a WFS endpoint the layers that exist in that source and lists them to the user. The administrator is then capable to select which layers he wants to import and store them in the platform.

09 - Import data - WFS source.png

Shapefile is a widely used format that is supported as input by the Geoanalytics Platform. The VRE manager can upload a shapefile and make it available in his VRE.

10 - Import data - Shapefile import.png

The Geoanalytics Platform supports raster layers in GeoTIFF format. Accordingly, to the shapefile import the user can upload a GeoTIFF file, select a style for this layer and upload it to the platform.

11 - Import data - GeoTIFF raster image import.png

The import of NetCDF files that conform to the COARDS conventions is supported, too. The admin can import NetCDF files in the same manner as described in the GeoTIFF import.

12 - Import data - NetCDF raster image import.png

Geodata in GeoJSON format can also be imported in the platform.

13 - Import data - GeoJSON import.png

The platform provides two options for the admin to upload the geodata.

He can upload a single file from his local computer.

15 -Local pc option.png

He can also import a file from his workspace

16 -Workspace option.png

Through the Users’ management tab, the administrator can inspect which users are active in the platform.

14 - User management.png

06 - Layer Visualization.png (987 KB) Panagiota Koltsida, Sep 20, 2019 03:00 PM

07 - Layer Details.png (1.3 MB) Panagiota Koltsida, Sep 20, 2019 03:00 PM

05 - General Information.png (36.2 KB) Panagiota Koltsida, Sep 20, 2019 03:00 PM

04 - Authorization.png (47.9 KB) Panagiota Koltsida, Sep 20, 2019 03:00 PM

03 - Layer selection.png (337 KB) Panagiota Koltsida, Sep 20, 2019 03:00 PM

02 - New project - Area of interest selection.png (318 KB) Panagiota Koltsida, Sep 20, 2019 03:00 PM

01 - User Projects.png (32 KB) Panagiota Koltsida, Sep 20, 2019 03:00 PM

02 - Layer management - Layer editing.png (62.7 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

03 - Layer management - Layer attribute editing.png (58.7 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

01 - Layer management - Layer listing.png (58.1 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

04 - Layer management - Geonetwork - Catalogue publishing.png (63.5 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

05 - Tag management.png (37.3 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

07 - Style management - Style creation.png (55.6 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

06 - Style management - Styles listing.png (22.6 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

08 - Import data - TSV files.png (66.2 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

09 - Import data - WFS source.png (107 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

10 - Import data - Shapefile import.png (60.2 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

09 - Import data - WFS source.png (107 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

11 - Import data - GeoTIFF raster image import.png (62.2 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

12 - Import data - NetCDF raster image import.png (62.4 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

13 - Import data - GeoJSON import.png (70.1 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

15 -Local pc option.png (18.2 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

16 -Workspace option.png (65.9 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM

14 - User management.png (36.3 KB) Panagiota Koltsida, Sep 20, 2019 03:01 PM