Type | devroom |
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2/2/20 |
The talk introduces STAC, the SpatioTemporal Asset Catalog specification. It aims to enable a cloud-native geospatial future by providing a common layer of metadata for better search and discovery. It is an emerging open standard to catalog and expose geospatial data from different sources either in a static or dynamic way. We’ll cover the core set of metadata fields for STAC Catalogs, Collections, and Items first, along with available extensions for describing different types of data (EO, ...
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2/2/20 |
openEO is a new API specification for Earth Observation data cubes that supports data extraction, processing and viewing. Both the standard and its implementations are Open Source projects, which itself rely on Open Source libraries under the hood, such as GRASS GIS, GDAL, Geotrellis, Rasdaman, or provide a standardized interface to proprietary systems such as Google Earth Engine. Client implementations are available for JavaScript, R, Python, QGIS and web browsers. This talk will show an ...
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2/2/20 |
GeoServer Basics Welcome to GeoServer, a popular web service for publishing your geospatial data using industry standards for vector, raster and mapping. Are you just getting started with GeoServer, or considering it for the first time? This presentation is here to help, introducing the basics of: Usage: Concepts used to connect to your data and publish as a spatial service. Context: What role GeoServer plays in your organization and what value the application provides. Community: How the ...
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2/2/20 |
GeoNetwork Basics Welcome to GeoNetwork, a leading web service for keeping track of the spatial information used by your organization. Jody is an experienced open source community member, digging into what this technology offers, and how it is used. This presentation shares these findings with you, and touches on what makes GeoNetwork succeed: We look at what GeoNetwork is for, the business challenge it is faced with, and the amazing technical approach taken by the technology. For context we ...
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2/2/20 |
So you are here at FOSDEM in Brussels. Also sightseeing? Geocaching? Tried to optimize your way along the sights or to find many caches without making it a hike? Then you've got the traveling salesman problem! Famous in computer science because finding the optimum is extremely difficult and finding good approximations can be done easily. Last year we had a talk about 3geonames.org where the Hilbert curve was mentioned to be used in name generation. When researching about this space curve it ...
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2/2/20 |
Arabesque is a FLOSS web application dedicated to flow mapping and analysis. Using web technologies, it provides tools to the user to load O/D data. The user can easily modify filters parameters or add new ones. A default symbology is proposed but the user can define is own. Arabesque aims to provides a fast, lightweight framework to visualize and explore flow data with a special attention on graphics and symbology in order to produce beautiful and just flow maps. This presentation will be a ...
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2/2/20 |
What is a spatial index? How does R-tree work? How to create one in C and how to use it with geographical data in order to solve a problem on the surface of ellipsoid? We give answers to these questions and show solutions using utilities provided by Boost.Geometry library, the library that is currently being used to provide GIS support to MySQL. We discuss properties of the R-tree and show differences between variants of this spatial index. This is a practical talk presenting a set of example ...
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