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22:53 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

The economics of bringing a new geo product to market by leveraging open standards, FOSS and FOSS4G

The cloud and open source software have fueled a wave of innovation that has enabled both large and small companies to bring products to market more easily and with less cost and friction than ever before. This talk will describe our journey to bringing such a new product to market. In 2014 Google began selling its high resolution imagery and purchasers received the data as large buckets of files deployed within Google’s Cloud Platform (GCP). This opened a requirement for high performance serving of that imagery via the Open Geospatial Consortium’s (OGC) WMS and WMTS standards. This talk will describe the process of a small company developing this image serving technology by both incorporating and contributing to open source and geo open source initiatives. The talk will describe the market opportunity for the new product as well as the business case that led us to choosing an open source approach even for something that is ultimately sold. The talk will also describe the Node.js technical approach that was chosen and the array of geo tools, such as Mapnik and PostGIS, and other open javascript frameworks (e.g. Bootstrap, Handlebars.js, etc.) that underpin the solution. The talk will also highlight our development team’s open source contributions back to projects and the community. The talk will conclude with a description of the lightweight server and its features that enable an “imagery as a service” business model that daily serves hundreds of users in Utah and Texas.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:32 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Trying to visualize GIS & BIM information on the web: a solution using Leaflet and Cesium

While GIS is a term whose use has now been consolidated for years now, BIM is a term whose use is increasingly widespread over the past few years. The both deal with geo-localized "objects", so the ongoing studies for a common point of the GIS and BIM different views of the same object is somewhat unavoidable. A first attempt at integration information belonging from these two worlds is presently under way in the framework of EU funded DIMMER project. This project integrates BIM, district level 3D models with near-real time data from sensors and user feedback in order to analyze and correlate buildings utilization, and to provide information about energy-related behaviors to users and other stakeholders. From the point of view of technology, the project uses open source technologies such as Java, Leaflet and Cesium, as far as GIS is concerned: here you're an architectural schema. The web application integrated GIS data read directly from a POSTGIS data base, with data flows from BIM services, near-real time data from sensors distributed over the territory under examination, and on line processed indexes/calculations. The present version of the project makes it possible to consult sensor information in near-real time, as well as the other processed calculations/indexes, through a web dashboard that includes as primary elements both a 2D map (based on Leaflet), as well as a 3D map (based on CesiumJS).
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:01 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

QWCII: A new QGIS Web Client

QGIS Web Client (QWC) is a Web-GIS client based on OpenLayers 2 and ExtJS and tailored to use special extensions of QGIS Server, such as extracting information from QGIS Project settings, extended GetFeatureInfo Requests, GetPrint and DXF export. It uses standard WMS/WFS commands, but extends them where needed. QWC is used by several cities and provinces in Europe. There are four main reasons why QWC needs to be overhauled: The code structure is not very modular and should be better structured. QWC only works well on Desktops. Despite a separate mobile web client based on OpenLayers 3 and jQuery Mobile, for maintenance reasons it would be much better to have a single web client that uses responsive design and works for all devices from a single viewer. The base libraries ExtJS 3.4 and Openlayers 2 have been phased out and there are newer versions available. However, the upgrade to the newer versions is not trivial. Having a more modern foundation based on newer web technologies This presentation discusses the requirements, the progress of this project, technical decisions taken and challenges solved during the project. While the first goal of the project is to establish a modern foundation for the coming years and reach feature parity with the old QWC project, it is already planned to implement a QWCII python plugin that offers a GUI and assists with the global configuration of the client. This tool should also facilitate the management of topics and projects.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:29 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

GeoServer in Production: we do it, here is how!

The presentation will describe how to setup a production system based on GeoServer from the points of view of performance, availability and security. The suggestions will start covering how a single node GeoServer should be prepared for internet usage, tuning logging, connection pools, security, data and JVM preparation, keeping disk, memory and CPU usage in check within the limits of the available resources. We’ll then move to tools used to monitor the production instances, ranging from probes to request auditing and watch-dogs. Finally the presentation will cover setting up a cluster of server and the strategies for keeping them in synch, from the traditional multi-tier setup (testing vs production) to the systems that need to keep an ever evolving catalog of layers constantly on-line and in synch.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:14 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Validating services and data in an SDI

To achieve interoperability in a spatial data infrastructure (SDI), conformance to specifications is essential for services and data. Service and data providers need a capability to validate their components. For several OGC standards, the OGC CITE tests provide such a capability. This covers base standards, but in SDIs typically additional specifications are added, for example, service profiles or data specifications. In the European Location Framework (ELF) the test framework ETF is used to validate INSPIRE services and data provided by National Mapping Authorities against the INSPIRE Technical Guidelines as well as against ELF-specific requirements. ETF is a test framework for spatial data infrastructure components. It supports SoapUI (for testing web services) and BaseX (for testing XML documents, including very large ones) as test engines to develop and execute test suites. ETF has been implemented in several iterations over recent years as existing open source test environments could not be configured to provide uniform test reports that were readable by and useful for non-developers. Outside of the ELF project, ETF is currently mainly used in Germany and the Netherlands, partly extending the INSPIRE-specific tests based on national profiles. We present the approach for developing user-friendly test suites and discuss typical issues that have been encountered in the ELF testing.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
28:19 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Processing Copernicus Sentinel data with GRASS GIS

Markus Neteler (mundialis GmbH & Co KG) Carmen Tawalika (mundialis)
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:59 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Integration testing of Web Mapping applications (including web mapping server) using Python

When you are developing applications, you need to write tests. A unit test is a test written by the programmer to verify that small piece of code is doing what it is intended to do. The tests are intended for the use of the programmer. An integration test on the other hand is done to demonstrate that different pieces of the system work together. Integration tests cover whole applications, and they require much more effort to put together. The integration tests do a more convincing job of demonstrating the system works than a set of unit tests can. Unit tests can be great but they tightly couple your tests to your code, making it really fragile and anti Agile. We will show integration testing of web mapping applications using Python bindings to Selenium browser automation tool. We can test JavaScript application from Python environment, using standard unittest module. Since Python is very easy to be used and it's very universal language, it's easy to be learned by non-programming co-workers, who can automate application tests and help the developers with testing. Using integration tests in continuous integration development, enables us to be more agile, making sure that both parts - frontend and backend remain integrated even bigger refactoring occures. Part of testing is also background data services, with new project called WMSChecker. This is used in our Jenkins environment, so that system administrators can have overview about current status of running custom nad 3rd party services.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:50 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

How the Land Administration community profits from Open Source

The Social Tenure Domain Model (STDM) is a concept, model and information tool to map people-to-land relationships. STDM is developed and maintained by the Global Land Tool Network (GLTN) under the lead of the UN Habitat. The data model was closely aligned with LADM, an ISO standard on Land Management followed by most implementers. When it came to implementing the software tool the GLTN group decided against reinventing the wheel but to check out existing Open Source components (as maintained by the OSGeo Foundation) and Open Standards (as maintained by the OGC). So basically everything from the data model, technology standards and up to all the tools required to do proper Land Administration is already there. But it is too complex for non-technical people to grapple with. Therefore the GLTN group started to implement a software package which shipped with the right data model for the Postgres and PostGIS database, the desktop software QGIS, reporting tools and comprehensive documentation. This presentation will give an overview of the software tool and underlying components to give participants with limited technological background a better understanding of how it works and how they can also profit from the abundance of great Open Source software that is out there.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
20:49 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Development of a new framework for Distributed Processing of Big Geospatial Data

The Geospatial world is still facing the lack of well-established distributed processing solutions tailored to the amount and heterogeneity of geodata, especially when fast data processing is a must. However, most current distributed computing frameworks have important limitations regarding both data distribution and data partitioning methods. Hence, this paper presents a prototype for tiling, stitching and processing of big geospatial data. The system is based on the IQLib concept developed in the frame of the IQmulus EU FP7 research and development project. The data distribution framework has no limitations on programming language environment and can execute scripts (and workflows) written in different development frameworks (e.g. Python, R or C#). It is capable of processing raster, vector and point cloud data. Our intention is to provide a solution to perform a wide range of geospatial processing capabilities in a distributed environment with no restrictions on data storage concepts. Our research covers methods controlling data partitioning, distributed processing and data assimilation as well. Partitioning (also referred to as “Tiling”) is a very delicate yet crucial step having impact on the whole processing. After algorithms have processed these “chunks” or “tiles” of data, partial results are collected to carry out data assimilation or “Stitching”. The paper presents the above-mentioned prototype through a case study dealing with country-wide processing of raster imagery. Assessment is carried out by comparing the results (computing time, accuracy, etc.) to concurrent solutions. Further investigations on algorithmic and implementation details are in focus for the near future.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:21 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Flood mapping and analysis platform based on open satellite data and free and open source geospatial

Flooding remains the most widely distributed natural hazard in Europe, causing significant economic and social impact. Nowadays, availability of earth observation data generates fundamental contributions towards mitigation of detrimental effects of extreme floods. The technological advance allows development of online services able to process high volumes of satellite data without the need of dedicated desktop software licenses. The talk presents the data, the algorithms and the technologies used to develop such an online system that can use multi-scale satellite data, together with reference and in-situ information, to map the areas affected by floods and giving the users the possibility to inspect, process, analyze and validate the information. The platform, created by National Meteorological Administration of Romania, offers services based on Open Geospatial Consortium standards for data retrieval (WMS, WCS, WFS) and server-side processing (WPS, WCPS). The services were built using open source solutions such as GeoServer, OpenLayers, PostGIS, GDAL, rasdaman.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:24 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Welcome to the FOSS4G Community

Welcome to the Free and Open Source Software for Geospatial community. Freedom is one of the tools we use to take on the world. This presentation breaks down the principles on which our community built. This welcome presentation is a quick orientation on open source, open data, open standards and open development. Please attend this talk if you are new to the FOSS4G community, or would like some background on how all the fun toys you see on display fit together to form a larger picture. A larger picture we like to call the future.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
23:24 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

The Evolution of the GeoNode Community

The GeoNode project has grown from an idea and a handful of early partners 5 years ago to a large and thriving open source project and downstream ecosystem. This talk will discuss the cast of characters and organizations that currently contribute to GeoNode, how this community has grown and evolved over time and the growing pains encountered and lessons learned in the process. Particular focus will be paid to the technical and collaborative aspects of growing and managing a diverse community, looking at how new community members are brought into the fold and how the resources that organizations with different needs and requirements bring to the table are marshaled most effectively to achieve economies of scale when developing new features. The GeoNode community has begun a quantitative analysis of organizational return on investment from open source and initial results of this study will also be presented.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
33:47 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Developing an Open Pedestrian Landmark Navigation Model

Today's publicly available pedestrian navigation systems still use paradigms developed for car navigation. In this paper, we present a novel landmark-based pedestrian navigation model using open source tools and open data from OpenStreetMap, which is available globally and free of charge. This approach ensures that our landmark navigation model is widely applicable, rather than restricted to a certain area with exceptional data sources. Our contributions cover algorithms for extraction, weighing, and selection of landmarks based on their suitability, as well as the generation of landmark-based navigation instructions for a given pedestrian route. The system has been implemented using PostGIS as a data store and QGIS for algorithm development. First field tests with pedestrians show promising results by confirming that our weighted landmark selection outperforms a simple baseline approach by reducing the number of navigation errors and revealed future challenges for the generation of intuitive pedestrian navigation instructions.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:21 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

From global observations to local information: The Earth Observation Monitor

Earth Observation (EO) data are available around the globe and can be used for a range of applications. To support scientists and local stakeholders in the usage of information from space, barriers, especially in data processing, need to be reduced. To meet this need, the software framework "Earth Observation Monitor" provides access and analysis tools for global EO vegetation time-series data based on standard-compliant geoprocessing services. Data are automatically downloaded from several data providers, processed, and time-series analysis tools for vegetation analyses extract further information. A web portal and a mobile application have been developed to show the usage of interoperable geospatial web services and to simplify the access and analysis of global EO time-series data. All steps from data download to analysis are automated and provided as operational geoprocessing services. Open-source software has been used to develop the services and client applications.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
22:41 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Building applications with FOSS4G bricks: two examples of the use of GRASS GIS modules as a high-level "language"' for the analyses of continuous space data in economic geography

In a world where researchers are more and more confronted to large sets of micro-data, new algorithms are constantly developed that have to be translated into usable programs. Modular GIS toolkits such as GRASS GIS offer a middle way between low-level programming approaches and GUI-based desktop GIS. The modules can be seen as elements of a programming language which makes the implementation of algorithms for spatial analysis very easy for researchers. Using two examples of algorithms in economic geography, for estimating regional exports and for determining raster-object neighborhood matrices, this paper shows how just a few module calls can replace more complicated low-level programs, as long as the researcher can change perspective from a pixel-by-pixel view to a map view of the problem at hand. Combining GRASS GIS with Python as general glue between modules also offers options for easy multi-processing, as well as supporting the increasingly loud call for open research, including open source computing tools in research.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:52 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Using SQLite to take maps offline on mobile devices

Nowadays, the internet allows us to access maps on mobile and tablet devices in real-time when we need them. Very often we might be without an internet connection. How to get access to maps in such situations? The answer is to take maps offline. What are technical challenges to get maps offline? Why is SQLite ideal database for offline map storage? How to store all vectors and rasters into a single SQLite database on a mobile device? How to render such maps using hardware with limited capabilities? What are storage and bandwidth requirements? How to solve offline map editing and synchronization? These are only some of the questions this talk will focus on.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:07 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Keynote I - Maximising the socio-economic potential of EO data.

  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
30:12 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Keynote III - Geospatial Analytics in Risk Management

At the Joint Research Centre (JRC), scientists involved in maritime situational awareness are confronted with a growing volume of data. Every day millions of ship positions from terrestrial and satellite receivers are gathered globally and in real-time, as well as optical and radar Earth Observation images, leading to a significant variety of data. To support the researchers, policy makers and operational authorities in their activities a analysis platform with WebGIS functionality has been developed with the aim of turning data into valuable information and demonstrating pre-operational tools for maritime awareness. The platform is mostly based on FOSS software and consists of a front-end visualization tool and a back-end analysis engine. Fusion algorithms provide the ability to integrate data from multiple sources on the fly. A series of tools provide predictive analysis, activity mapping, anomaly detection, and cross disciplinary information, to support maritime security and safety and to improve marine knowledge. The web application is developed using open source programming languages (e.g. Javascript, Python), frameworks (e.g. Django, Geoserver), and interchange data format (JSON) to enable researchers to seamlessly integrate ad hoc algorithms developed in scientific languages (e.g. R, Matlab). A case study will be presented, showing examples of how the WebGIS architecture can provide visualisation and analysis tools to support decision makers and scientific and operational actors in the fields of fisheries science, maritime spatial planning, and maritime surveillance.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
28:20 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Paleomaps: SDI for paleoenvironment GIS data

Paleoenvironmental studies and according information (data) are abundantly pub-lished and available in the scientific record. However, GIS-based paleoenviron-mental information and datasets are comparably rare. Here, we present an OpenScience approach for collecting and creating GIS-based data and maps of paleoenvironments, and publishing them in a web based Spatial Data Infrastructure (SDI),for access by the archaeology and paleoenvironment communities. The Open Science approach to the publication of data, allows to properly cite the publisheddatasets as bibliographic sources in research that builds upon these data sets.This paper has its focus on the implementation and setup of the Free and OpenSource Software for Geospatial (FOSS4G) based SDI, and on the workflow forcompiling and publishing the GIS data.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:24 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Urban SDG Measuring System using the Open Geospatial Data of the International Organizations

As a post Millennium Development Goals(MDG), 17 Sustainable Development Goals(SDG) and 169 indicators were adopted at 2015 in the UN general assembly. Especially as the developing countries are predicted to face rapid urbanization until the 2030, Cities attract more and more attentions for achieving SDGs because most activities occur in the cities. But the activities are closely related to spatial phenomena. It is essential to consistently construct the spatial database for developing and developed countries and uniformly measure and monitor the indicators of urban SDGs which is operationally defined in this presentation as a SDG 9 and 11. In this regards, open geospatial data present both possibilities and limitations for urban SDG measurement. In this presentation, we analyze open database from UN agencies and Multilateral Development Banks(MDB) and measure and predict the urban SDG until the 2030 using that database. To that end, we analyze the related open data structure of those international organizations and develop a UN SDG monitoring system based on the FOSS4G solutions such as PostGIS and GeoServer. Choi, Junyoug (Spatial Information office, Korea Land and Housing corp., Republic of Korea) Hyunsoo Kim (CITUS. CO) Jaeseong Ahn (Kyungil University)
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
32:57 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

PROBA-V mission exploitation platform

In januari, the European Space Agency launched the first version of the PROBA-V mission exploitation platform. proba-v-mep.esa.int. This platform, which is fully operated by VITO Remote Sensing, has the goal to simplify the use of open remote sensing data which should eventually result in operational applications that benefit society. Exploitation platforms are the way of the future to handle the ever increasing volumes of remote sensing data, and at VITO we believe that the use of Open Source software is the only way to collaborate on this shared vision. In this talk, first I want to give a general overview on what users can do with the PROBA-V MEP. This involves using an Openstack VM loaded with FOSS software and direct access to the dataset, to access an Hadoop cluster where a user can distribute his processing using Spark. Secondly, I want to show how we are using Geotrellis to support interactive queries on the full timeseries of remote sensing data that is available in the platform. Also showing how this can be done from within an interactive Scala notebook in the browser.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
18:17 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Analysing the practical feasibility of FOSSGIS in military operations – A Cholera outbreak use case

Remaining ahead of the enemy in all circumstances is crucial to any military power. Geographic information systems (GIS) can provide the military commander with geospatial information about the theatre of war to assist with the planning and execution of a mission. Unfortunately, technology usually comes at a price. GIS is no exception. The cost of acquiring and maintaining GIS software licenses, as well as training staff in the use of the software, needs to be considered. The question arises whether open source software, which can be used without any software license expenses, is a feasible alternative in military operations. The problem is that the perception exists that open source GIS software is neither user-friendly nor mature enough to be used in military operations. This study evaluates the functionality of an open source desktop GIS product in a military operations use case. A list of specific GIS functionalities was compiled based on the literature study and by developing a use case. The functionalities were executed in QGIS. Results were compared against results of the same functionalities in ArcGIS, which is widely used in military operations. Results show that all GIS functions tested by this study could be performed by both software products. These results are interesting because it means that FOSSGIS can be successfully deployed by units or directorates that has limited funds available to expand the existing GIS capabilities for military operations.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:17 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Humanitarian Capacity Building and Preparedness with QGIS

MapAction has been using QGIS for the past five years or so as its principal training tool when working with humanitarian agencies in a number of countries affected by humanitarian disaster and conflict. This talk will focus on the training and preparedness work that MapAction has carried out with QGIS, reflecting on the experience of using QGIS, describing the methods it has employed to work with both GIS professionals and staff new to GIS, and what has been learned in the process. This will include some discussion of what has been successful and less successful, and how the use of mapping and GIS in humanitarian response can be encouraged and supported in the long term. There will also be examples of QGIS products and implementation by other organisations, with a view to identifying best practice and the means of disseminating this in the humanitarian information management community.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
18:11 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Towards open, interoperable, and transdisciplinary point clouds for high performance computing

Large point clouds have emerged across a wide range of disciplines, however users and managers face a bewildering range of storage formats, large datasets and convoluted workflows for analysing point clouds alongside other data. Services like OpenTopography and the PDAL toolkit enable point cloud discovery and use, but integration with other earth systems data is not transparently supported. The Australian National Computational Infrastructure (NCI) hosts 10+PB of research data, predominantly in the realm of Earth Systems. These include extensive point cloud data which need to be discoverable alongside, and interoperable with, substantial collections of geospatial observations and model data using common tools in a High Performance Computing (HPC) and High Performance Data (HPD) environment. NCI has created a National Environmental Research Data Interoperability Platform (NERDIP) to help manage and analyse the data, both locally and remotely using web services which makes use of advanced features in HDF/NetCDF. We have demonstrated that deploying other geospatial data using a HDF5 model has the potential to directly improve large-scale usage and increase data interoperability between diverse geospatial collections. Models such as the Sensor Independent Point Cloud (SIPC) and SPDLib are based on HDF5. NCI are currently evaluating the use of these formats to aid discovery, extraction and processing using readily available tools, as well as interrogation via web services. The end goal for NCI is making point data discoverable and accessible to end-users in ways which allow seamless interoperability with other datasets and processing techniques.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
34:08 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Introduction (Till Adams), Introduction (Mayor of Bonn)

  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:44 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Collect & Manage Geospatial Data Edits with GeoSHAPE

Syrus Mesdaghi (Prominent Edge LLC)
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:32 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Real-time large format maps for passenger information on railway disruptions

Focusing on a clearer and more visible passenger information, Swiss Federal Railways SBB modernized the general displays in the biggest Swiss railway stations. The former mechanical palette displays were replaced by LED screens of up to 5 meters width. In case of severe traffic disruptions these monitors are used for providing the passenger with general information. Additionally, a huge (perhaps the biggest) map based on OpenLayers 3 is shown on the monitor enabling the passenger to get a fast overview of the situation. The key component of the service-based architecture is the geographical content management system Cartaro. It is used by the employees in the SBB operation centers for composing and editing the information to display. Among issues like performance, reliability and availability a major challenge for the system was the development of tools for the fast and simple creation of a clear and appealing map. The software automatically generates a map based on real-time timetable information, identifies the affected stations and highlights the interrupted route using a routing-based approach. A set of integrated spatial editing tools enables the user to e.g. modify route geometries at different generalization levels and to align map labels.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
51:51 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

OSGeo AGM

After 5 years in production the open source based Pavement Management System for Ireland has amassed over 15 years of road-related data. The back-end mapping engine is powered by MapServer and we are looking to improve performance when dealing with more and more data. The talk will focus on how to set up Locust, an open source Python load testing tool, to automatically get average load times for each WMS and WFS layer from MapServer, and how many users MapServer can handle concurrently. A small open source project is currently being written to help this process. Whilst MapServer is the focus of the talk, any OGC-compliant server can be tested in the same way. The talk will then briefly run through a series of experiments to see how changing various components affects performance. These are: Running MapServer on Linux as compared to Windows Using the MapServer native SQL Server driver, and using the OGR driver Map file size Venkatesh Raghavan (Osaka City University)
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:53 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Identification of SAR Detected Targets on Sea in Near Real Time Applications for Maritime Surveillance

Remote sensing technologies are widely used in maritime surveillance applications. Nowadays, spaceborne Synthetic Aperture Radar (SAR) systems provide outstanding capabilities for target detection on sea for large areas independently from the weather conditions. Complementary information from the Automatic Identification System (AIS) makes it possible to generate a value-added target-detection product. Resulting layers on the maritime situation – once provided to decision makers - would be highly beneficial in order to understand what is going on at sea and how it would impact on Maritime Safety and Security. This paper describes the approach of SAR-AIS data fusion and its visualization means developed for Near Real Time (NRT) Applications for Maritime Situational Awareness.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:08 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

MapServer Status Report

2015 was a big year for the MapServer project with the release of the 7.0 major version. This presentation highlights the new features included in this version, like WFS 2.0 for Inspire, UTFGrids, or heatmaps, as well as a recap of the main features added in recent releases. It further shows the current and future directions of the project and discusses contribution opportunities for interested developers and users. After the status report of the MapServer project there will be the opportunity for users to interact with members of the MapServer project team in an open question/answer session. Don’t miss this chance to meet and chat face-to-face with members of the MapServer project team!
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:18 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Kickstart your web map app!

Do you want to avoid writing boilerplate code for map applications? Would you rather take a ready-made template for your apps and start hacking away the cool stuff? Oskari and RPC may be just what you're looking for! Oskari is an extensible and versatile map application platform which provides an easy user-interface for creating embeddable maps to websites. Embedded maps can be controlled from the website with an API to create innovative and user-friendly applications. The API includes features that allow you to 'visualize data' on the map and/or 'react to user interaction' with the map, allow users to give feedback by 'drawing on the map' or create a custom trip planner with routing features. The API can be easily extended by adding features to Oskari platform. Oskari has been originally developed by the National Land Survey of Finland, but now being developed and used by multiple organizations, also internationally. There are numerous websites already making use of embedded maps, including Finnish national e-services.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:36 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

A complete toolchain for object-based image analysis with GRASS GIS

Object-based image analysis (OBIA) is the current state of the art feature extraction technique for very high resolution (VHR) satellite imagery. While one proprietary tool dominated the market for years, more and more alternative solutions now appear, including free software based, and research continues to produce new approaches. However, many of the techniques implemented in free software are not easily accessible to the inexperienced user. This presentation presents efforts to develop a complete tool chain of easy-to-use modules for OBIA in GRASS GIS, ever since the development of an image segmentation module i.segment during GSoC 2012. Amongst the other modules presented are i.segment.uspo for unsupervised segmentation parameter optimization, i.segment.hierarchical for hierarchical segmentation, v.stats and i.segment.stats for the collection of statistics characterizing the objects, v.class.ml and v.class.mlR for supervised image classification. Combining these modules enables semi-automatic treatment of VHR imagery in a completely free software environment, as shown through examples of the two research projects SmartPop (funded by ISSeP) and MAUPP (funded by BELSPO). The talk will end with some reflections about possible further enhancements of this process, including through the combination of GRASS GIS with other FOSS4G tools.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:29 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

geOrchestra SDI - Project Status Report

geOrchestra is the free, modular and secure Spatial Data Infrastructure software born in 2009 to meet the requirements of the INSPIRE directive in Europe. It is built on top of the latest stable versions of GeoServer and GeoNetwork. In this talk we will briefly present the geOrchestra SDI, before going through the major contributions during the previous year, to answer the following questions: * how the project moved from tainted to generic artifacts (war files, debian packages, docker images) * how to deploy a geOrchestra SDI instance in 10 minutes * how to build your robust, high performance and high availability SDI in the clouds
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:20 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Coordinate systems and map projections with EPSG.io

EPSG.io allows to search in a global database of spatial reference systems, datums, ellipsoids and projections to identify transformation parameters required for a software to correctly handle the geographic location in a known coordinate system. This presentation shows various functions of the search system, and demonstrates how to use it efficiently to discover and identify the right coordinate system, transform the sample coordinates online, pick a position on a map, convert units, etc. It is possible to export definitions of coordinate systems in various formats, including WKT, OGC GML, XML, Proj.4, SQL or JS and directly use these in compatible systems such as Proj4JS and OpenLayers or PostGIS. The whole system is open-source with code on GitHub, and in the background it uses OSGeo Proj4 / OGR for all the transformations and it is powered by the latest EPSG Geodetic Parameter Registry released by IOGP regularly. The open-source tools used in backend could be used called on a command line in batch operations. Ideas for future improvement and cooperation with the community will be discussed.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:37 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Sat-utils: Landsat, Sentinel and the use of open raster data

Open satellite data from the US and EU have provided scientists and businesses with a wealth of data, but it can be difficult to fully easily access and process it. Recent efforts to put Sentinel-2 data on AWS S3 along with Landsat-8 has made it easier to build tools to access both data sources. At Development Seed, we are building tools called sat-utils to process and access open raster data like Landsat and Sentinel. We've expanded development on the tools to be a suite of Python libraries and command line tools for querying, downloading, managing, and processing other remote sensing data. It's been two years since we've launched the first sat-util, landsat-util, which has proven to be a valuable tool with a growing user base. sentinel-util is an tool that will provide the same easy access to data that landsat-util provides. We will discuss the processing for turning spectral band data into usable products such as color corrected RGB images, radiance data, top of the atmosphere reflectance, and various indices. We will also demonstrate the available APIs we have for open raster data: sentinel-api and landsat-api, that our client utils use for searching available metadata.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:42 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

How to Visualize Indoor Data in 2D Map? Is This the Way to Go?

It seems easy. Tag rooms, doors, and other indoor features with level number (or floor or storey), put level selector to the map and show features just from selected level. End of story. But what if there are two buildings A and B connected by passage? And what if these buildings are on a slope and level A1 is on the same height as level B3? And what about mezzanines? Are stairs part of the lower floor or upper floor? And where to show it? Aren't some big lecture rooms stepped? And aren't they also used to take more levels? Masaryk University maintains geospatial database of its own buildings including polygon features like floors, rooms, doors, windows, or walls. It contains more than 200 buildings and 20,000 rooms. Based on the database we are building web maps in OpenLayers 3 for specialized users as well as for students and academic staff. Therefore we have faced similar questions as mentioned above many times and I would like to share our experience.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
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Version

AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)