Show filters Hide filters

Refine your search

Publication Year
1-36 out of 119 results
Change view
  • Sort by:
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
21:15 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Create Vector Tiles from OpenStreetMap

The OSM2VectorTiles project offers free downloadable vector tiles ready to use by people interested in hosting custom base maps on their own infrastructure. The whole world fits on a USB stick and can be served from an ordinary web hosting and styled and enriched to make beautiful and fast maps for web and mobile applications. The advantages of vector tiles over traditional raster tiles are well known. There are already a handful of vector tile provider present, but they may not always serve your use case optimally. After this talk you will know how to create your own custom vector tiles based on OpenStreetMap and will know the tools and processes you need to use. The talk will cover how to import OpenStreetMap data into PostGIS and then shows how to generate vector tiles using Tilelive and Mapnik. We will present the open source workflow we use at OSM2VectorTiles to prerender global vector tiles and instruct you how to adapt the workflow to create custom vector tiles. Thanks to Docker and tools such as Mapnik, PostGIS, Tilelive and Mapbox Studio Classic the process is straightforward and repeatable. Manuel Roth (HSR University of Applied Science Rapperswil Switzerland) Lukas Martinelli (HSR University of Applied Sciences Rapperswil Switzerland) Petr Pridal (Klokan Technologies GmbH)
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:27 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Leveraging Big Geo Data through Metadata

The increase in the scale of traditional data sources, along with an explosion in the availability of sensor data, have originated massive volumes of data, a great deal of which is actually geolocated. This is partly due to the wide adoption of cheaper position technologies, and to the exponential growing of Volunteered Geographic Geographic Information (VGI) movements, which rely on crowdsourcing approaches. Big Data has generated a lot of interest amongst industry, the developer community and the public in general, and it has been at the core of many technology innovations which took place recently (e.g.: NoSQL, MapReduce); these new approaches already started to involve the geo community with projects such as the ESRI Spatial Framework for Hadoop or GeoTrellis, just to mention a few. However, the focus has been mostly on storing data (at the infrastructure level) and using data (at the analysis level), leaving aside challenges such as discoverability, integration or security. In this talk, we will address some of these outstanding challenges through the use of metadata and the semantic web, and show how the use of a decentralized and standardized catalog can help to unlock the five V's of Big Data: Volume, Velocity, Variety, Veracity, and most importantly, Value.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
22:45 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Interoperability with OpenLayers 3

This talk will focus on the many ways that OpenLayers 3 can integrate with different systems out there. Some of the abilities are integrated into the library itself, think of open standards such as WMS, WMTS, KML, GeoJSON. Other ways to provide integration is through external libraries such as ole, which integrates with Esri ArcGIS REST services (Map Services and Feature Services), or JSONIX to provide parsing (and serialisation) of a huge amount of OGC standards.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:36 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Sensor Web for Oceanology

In the marine community, observation data sets are a critical input for many scientific questions. Thus, significant investments are made in equipment and data acquisition technology. To ensure that the collected data is efficiently used by a larger number of researchers, the interoperable sharing of observation data is getting more attention in recent time. This presentation introduces open source Sensor Web components from several European projects such as NeXOS, FixO3, BRIDGES and ODIP II that cover different requirements for Sensor Web technology in marine applications. On the one hand there are server-side tools such as the 52°North Sensor Observation Service which facilitate the publication and download of marine observations. On the other hand this is complemented by tools such as the 52°North JavaScript SOS Client, which offers a lightweight approach to explore and visualise observation data sets generated by mobile (e.g. research vessels) as well as stationary sensors (e.g. buoys). In our presentation we will introduce the basic principles of an interoperable Sensor Web infrastructure for Oceanology as well as show how this infrastructure can be implemented using the open source software components of 52°North. Simon Jirka (52°North Initiative for Geospatial Open Source Software GmbH) Matthes Rieke (52°North GmbH)
  • 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
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
25:49 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Enterprise Single Sign-On in GeoServer: where do we stand?

Security is a major concern in the enterprise and treats all aspects of identity and access management. Moreover the proliferation of devices and digital assets connected to the Internet of Things is a massive source of growing geographic information. GeoServer has buit-in a lot of features to manage authentication and authorization but often this kind of problem can be better dealt with a dedicated tool (i.e. Forgerock IAM suite) which allows to provide identities and access policies likewise to several clients. What are the best practices to integrate GeoServer into an existent single sign-on and identity lifecycle? Althought tools like CAS and GeoFence allow to enable such features it's more likely that GeoServer needs a leaner and cleaner path towards the externalization of authentication and authorization for the OGC services and its REST API.
  • 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
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
22:55 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

OGC's Land Administration Working Group – Building Bridges between communities

Land administration is an ongoing concern in many countries of the world and less than 30% of the landcover is properly titled or surveyed. This lack leads to insecurity of tenure, economic barriers, land grabbing and is a major problem to resolving land conflicts. Land administration frameworks have to support a wide variety of regulatory and policy environments and interoperability is key in providing the necessary flexibility. In order to avoid the creation of yet another set of data silos OGC members set out to form a Domain Working Group (DWG) on Land Administration as a forum to explore existing interoperability standards and best practices in this domain. The presentation will focus on this newly established working group and introduce to some of the key points of interest. While there are some standards describing elements of an administrative system (for example ISO LADM), there is no consistent use of geospatial description of land records or adequate rules for defining and describing the quality of the records. The group will work to provide a common vocabulary for the locational aspects of land administration databases and will also be a forum for connecting suitable technology for data linkage and quality assessment. Some of the key players in the Land Administration domain have created Open Source tools like FLOSS SOLA (FAO) and STDM (GLTN and UN Habitat) which are based on core OSGeo technology and already make extensive use OGC standards.
  • 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
24:24 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Mapping WiFi measurements on OpenStreetMap data for Wireless Street Coverage Analysis

The growing interest on smart cities and the deployment of an ever increasing number of smart objects in public locations, such as dumpsters, traffic lights, and manholes, requires ubiquitous connectivity for these devices to communicate data and to receive configurations. Opportunistic WiFi connectivity is a valid alternative both to ad hoc solutions, like LoRa, which require costly deployments, and to communicating through the mobile network, which is both pricey and battery power hungry. In this paper we present a tool to analyze the WiFi coverage of home Access Points (AP) on the city streets. It can be of interest to ISP or other providers which want to offer connectivity to Internet of Things smart objects deployed around the city. We describe a method for gathering WiFi measures around the city (by leveraging crowdsourcing) and an open source visualization and analysis web application to explore the accumulated data. More importantly, this framework can leverage the semantic information contained in OpenStreetMap data to extract further knowledge about the AP deployment in the city, for example we investigate the relationship between the AP density per square kilometer within the city and the WiFi street coverage ratio
  • 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
25:23 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

GeoMapFish 2 - Ready for the Future

GeoMapFish is an open source WebGIS platform developed in close collaboration with a large user group. The second version offers a modern UI based on AngularJS. OpenLayers 3 and an OGC architecture allow to use different cartographic engines. Highly integrated platform, large features scope, fine grained security, reporting engine, top performances and excellent quality of service are characteristics of the solution. In this talk we’ll present the technical aspects of the platform and its modular architecture.
  • 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
27:39 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

Mastering Security with GeoServer and GeoFence

The presentation will provide an introduction to GeoServer own authentication and authorization subsystems. We’ll cover the supported authentication protocols, such as from basic/digest authentication and CAS support, check through the various identity providers, such as local config files, database tables and LDAP servers, and how it’s possible to combine the various bits in a single comprehensive authentication tool, as well as providing examples of custom authentication plugins for GeoServer, integrating it in a home grown security architecture. We’ll then move on to authorization, describing the GeoServer pluggable authorization mechanism and comparing it with proxy based solution, and check the built in service and data security system, reviewing its benefits and limitations. Finally we’ll explore the advanced authentication provider, GeoFence, explore the levels on integration with GeoServer, from the simple and seamless direct integration to the more sophisticated external setup, and see how it can provide GeoServer with complex authorization rules over data and OGC services, taking into account the current user, OGC request and requested layers to enforce spatial filters and alphanumeric filters, attribute selection as well as cropping raster data to areas of interest.
  • 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
21:35 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

MapServer MapCache: Project Status Report

This talk will present the recent developments that happened in MapCache, the tiling server from the MapServer project. Main features include enhanced support for dimensions allowing easy creation of imagery mosaics, and further integration with cloud based infrastructure.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:49 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016

GeoExt3 — Universal WebGIS applications with OpenLayers 3 und ExtJS 6

  • 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
out of 4 pages
Loading...
Feedback

Timings

  174 ms - page object
  125 ms - search
    6 ms - highlighting
    1 ms - highlighting/20450
    1 ms - highlighting/20423
    2 ms - highlighting/20409
    2 ms - highlighting/20436
    2 ms - highlighting/20414
    1 ms - highlighting/20412
    2 ms - highlighting/20406
    2 ms - highlighting/20396
    2 ms - highlighting/20454
    2 ms - highlighting/20456
    2 ms - highlighting/20331
    2 ms - highlighting/20447
    2 ms - highlighting/20395
    2 ms - highlighting/20400
    2 ms - highlighting/20438
    2 ms - highlighting/20455
    2 ms - highlighting/20440
    2 ms - highlighting/20428
    2 ms - highlighting/20421
    1 ms - highlighting/20328
    1 ms - highlighting/20458
    2 ms - highlighting/20449
    1 ms - highlighting/20327
    1 ms - highlighting/20394
    0 ms - highlighting/20445
    2 ms - highlighting/20443
    1 ms - highlighting/20326
    2 ms - highlighting/20407
    1 ms - highlighting/20444
    3 ms - highlighting/20463
    0 ms - highlighting/20437
    2 ms - highlighting/20401
    1 ms - highlighting/20323
    1 ms - highlighting/20425
    2 ms - highlighting/20398
    1 ms - highlighting/20376

Version

AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)