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31:12 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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A glimpse of FOSS4G in the environmental consulting arena

In the highly competitive world of environmental consulting, being able to manage large volumes of data and deliver timely, accurate information based on that data is critical to our ongoing success. As a relatively small company, we recognized that we needed something unique to survive and prosper in an industry dominated by huge corporations. Over the past 7 years we have made a considerable effort to shift over to a FOSS4G environment, with a belief that, not only would this decision enhance what we already do well, but give us the competitive edge we would need to ensure future prosperity.A brief presentation of a snapshot of our current FOSS4G status, how we arrived here and a workflow tour beginning at the data acquisition stage looking at the feed through our patented EDMS QA/QC system into PostgreSQL followed by a demonstration of a just a few of our many custom web/mobile/desktop applications that rely on the PostgreSQL back end database and how these solutions are able to deliver accurate and timely information to employees and clients alike, and finally, where to next.We take advantage of multiple FOSS4G including the likes of OpenLayers, MapServer, PostgreSQL/PostGIS, PHP, D3 and jQuery. This combination places us in an ideal position to respond to client needs with the ability to rapidly deliver almost any request.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
32:17 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Barriers to FOSS4G Adoption: OSGeo-Live case study

OSGeo-Live is a Linux distribution, available in virtual machine, bootable DVD, or bootable USB formats, containing a curated collection of the latest and best Free and Open Source Geospatial (FOSS4G) applications. This talk investigates the correlations between worldwide download distribution, and community participation against indicators of economic, technical knowledge and socio-cultural barriers to geospatial technology and FOSS adoption. Better understanding the barriers of technology transfer are important to the outreach efforts of the FOSS4G community, and understanding the market development potential of FOSS4G around the world.Results of an analysis of the OSGeo-Live community will be shown but the techniques discussed can be applied to any software project.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:02 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Integrating FOSS4G into an enterprise system for Disaster Management

ROGUE (Rapid Open Geospatial User-Driven Enterprise) was a project funded under the Joint Capability Technology Demonstration (JCTD) Program from the U.S. Department of Defense. Boundless and LMN Solutions, LLC implemented the project, with the Pacific Disaster Center (PDC) serving in the role of project Transition Manager. The project's goal was to improve the abilities of the OpenGeo Suite to ingest, update, and distribute non-proprietary feature data in a distributed, collaborative, and occasionally disconnected environment. Under this project, PDC integrated the following technologies into its decision support system for emergency managers named DisasterAWARE:- GeoGit: Versioned replication of spatial data across multiple sites, supports disconnected editing and conflict resolution. - Arbiter: Android app for field data collection, syncs to GeoNode.- MapLoom: GeoNode GUI for spatial data editing and management. - KML Uploader: Functionality to upload KML for storage in PostGIS and served via GeoServer. - GeoServices REST (GSR): Extends GeoServer to publish data using the REST methodology of ArcGIS Server. This presentation will cover the integration of these components into DisasterAWARE, along with the security framework implemented for all components.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
28:08 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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The role of geospatial open source (FOSS4G) as a component of hybrid systems

Currently, it is rare that an organization faces a choice between "just commercial" or "just open source" geospatial software. Increasingly, the answer isn't about "or", it is now about solutions that may involve both. Indeed, Commercial systems - both installed software and cloud-based platforms - may have both functional and cost effectiveness gaps. Free and open source software for geospatial (FOSS4G) can be a critical component that helps to bridge these gaps. And, given that organizations may have large existing investments and sunk costs in commercial software it can make sense to leverage those investments by building hybrid systems that incorporate open source components. This presentation will describe several specific examples of hybrid systems that incorporate geospatial open source (e.g., OpenGeo Suite) alongside both Esri and Google components. The presentation will focus on both the business reasoning for choosing hybrid as well as the technical approaches taken. Ultimately, hybrid projects or systems can be very important as they provide a key entry-point for geospatial open source into organizations that might not otherwise consider it.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:48 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Community Health Mapping

This talk will cover a FOSS4G case study in which a workflow was implemented in several minority public health organizations in 2013. The three organizations were: 1) the Urban Indian Health Institute (Seattle, WA), 2) Papa Ola Lokahi (Honolulu, HI) and 3) The Nature Conservancy of Hawaii (Honolulu, HI). The end users were not GIS professionals but public health staff. Such community based public health organizations do not typically have dedicated GIS staff or budgets for GIS. However, they have each identified mapping needs. The overarching goals of the project were to demonstrate that FOSS4G tools could be effective in minority public health applications, and that they could be used by non-GIS public health staff. Therefore, a focus was placed on identifying the most intuitive and low cost solution meeting their needs.The workflow started with field data collection and included spatial analysis and online data presentation. Field data collection was performed using smart phones and tablets that the end users already owned. Analysis was done via QGIS and final data presentation was done via GIS Cloud. Training sessions were conducted and support was provided throughout the year. However, each organization was able to use the tools with very little follow up support. Each project produced good results, and each is planning on continuing with additional projects in 2014. The workflow will be introduced and results of the three case studies shared.This work was funded by the National Library of Medicine's Division of Specialized Information Services via their Outreach and Special Populations Branch.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:43 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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A FOSS4G-Based Geo Connection System for Education and Research

The presentation will examine the selection, installation, and the current and planned use of a CentOSÐbased system running FOSS4G to support student education, research, and projects with state and local organizations. A system was designed to foster collaborative work between an educational institution and the community. Specifically, it is being used to better understand and enhance distribution systems associated with local agriculture producers and consumers. Part of this work is the development of a web-based system to process and serve geospatial information in an effort to improve communication between food producers and consumers, i.e. restaurants, farmers markets, and Community Supported Agriculture (CSA). This presentation will demonstrate how the system was built to:¥ Continue investigation of the general principles and approaches for designing food distribution systems to enhance local food networks¥ Provide access to a web-based system for geospatial computations and data management¥ Serve as a resource for the community to access information in support of the broader goals of the CEDS research center¥ Act as an map server¥ Act as the server supporting deployment of geo-aware mobile phone applications implemented by the department to enhance the learning process on field trips and other field work¥ Collect, process, store, and serve data from environmental sensors to support education in weather, climate, and the environment
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
20:50 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Responsive Interactivity: Toward User-centered Adaptive Map Experiences

In recent years, the web design community has moved quickly to accommodate the various devices and methods for accessing web content. The FOSS4G and wider development community have responded to this paradigm of adapting the layout of content to scale to the device of the user by creating and leveraging tools such as Leaflet and D3. However, there remains a lack of knowledge, understanding, and conversation about what it truly means to create a map experience that meets the present needs and expectations of the user. Designing an adaptive map should go beyond simply fitting it into a responsive layout. User variables, such as the mode of interaction and location-based needs, raise map-specific UI design questions that this community is uniquely positioned to answer.This talk will explore what it could mean cartographically and experientially to adapt all aspects of the map experience to the needs of the user using principles already embraced in other communities. Our goal is to provoke a wider discussion of how we, as a community, can work toward these objectives. Regardless of expertise level, anyone who is involved with the creation of interactive web maps has inevitably come across the problems associated with, and will benefit from involvement in this conversation.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
40:53 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Open Source is People

Keynote Speech, FOSS4G 2014, Portland, Oregon.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
36:45 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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What's new in Cesium: the open-source alternative for 3D maps

When building 3D mapping apps, we no longer have to deal with closed feature-sets, limited programming models, temporal data challenges and bulky deployments. This talk introduces Cesium, a WebGL-based JavaScript library designed for easy development of lightweight web mapping apps. With live demos, we will show Cesium's major geospatial features including high-resolution global-scale terrain, map layers and vector data; support for open standards such as WMS, TMS and GeoJSON; smooth 3D camera control; and the use of time as a first-class citizen. We will show how Cesium easily deploys to a web browser without a plugin and on Android mobile devices.Since last year's talk at FOSS4G NA, Cesium has added 3D models using the open-standard glTF, a large geometry library and higher-resolution terrain.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:16 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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pyModis: from satellite to GIS maps

One year after the first public presentation of pyModis at FOSS4G 2013 a lot of improvements have been implemented in the pyModis library. The most important news are that each command line tool now offers a graphical user interface to assist inexperienced users. Furthermore, the MODIS Reprojection Tool (MRT) is not longer mandatory in order to mosaic and reproject the original MODIS data as GDAL is now supported.Hence the most important improvement was the reimplementation of existing MRT component to use the Python binding of GDAL. This was basically driven by the fact that MRT does not properly perform geodetic datum transforms as discovered in the daily work with MODIS data within the PGIS-FEM group leading to shifted reprojection output. With the new GDAL support not only this problem has been solved but also the installation greatly simplified. pyModis is used all over the world in academic, governmental and private companies due to its powerful capabilities while keeping MODIS processing workflows as simple as possible.The presentation will start with a small introduction about pyModis and its components, the library and the tools. This part is followed by news about the latest pyModis release and indications about future developments.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:07 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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ZOO-Project 1.4.0: news about the Open WPS Platform

ZOO-Project is an Open Source Implementation of the OGC Web Processing Service (WPS), it was released under a MIT/X-11 style license and is currently in incubation at OSGeo. It provides a WPS compliant developer-friendly framework to easilly create and chain WPS Web services.This talk give a brief overview of the platform and summarize new capabilities and enhancement available in the 1.4.0 release.A brief introduction to WPS and a summary of the Open Source project history with its direct link with FOSS4G will be presented. Then an overview of the ZOO-Project will serve to introduce new functionalities and concepts available in the 1.4.0 release and highlight their interrests for applications developpers and users. Then, examples of concrete services chain use will illustrate the way ZOO-Project can be used to build complete applications in a flexible way by using the service chain concept, creating new service by implementing intelligent chain of service through ZOO-API but also by taking advantage of the publication using OGC standards. Various use of OSGeo softwares, such as GDAL, GEOS, PostGIS, pgRouting, as WPS services through the ZOO-Project will be illustrated by applications presentation.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:10 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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From Nottingham to PDX: QGIS 2014 roundup

Following the long awaited QGIS 2 release, announced at FOSS4G 2013 in Nottingham, the project decided to switch to a regular release cycle with three versions per year. QGIS 2.2 was the first release in this cycle and already packed with many new features like 1:n relations, gradient fills, native DXF export and NTv2 datum transformations to name a few. QGIS 2.4, released in June, has one major extension in its core: multithreaded rendering. Originally developed as a Google Summer of Code project, it makes a big difference in the responsiveness of QGIS desktop.This talk shows a selection of the latest features and gives an outlook what's in the works for QGIS 2.6. Some interesting plugins and other news from the community will keep you up to date with the high pace of this OSGeo project.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
18:46 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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OSGeo Incubation

The Open Source Geospatial Foundation does much more than hold FOSS4G each year.This talk will look into what makes OSGeo a software foundation. What software foundations have to offer members, software projects and developers.This talk is structured around the "incubation" process by which new software projects join the OSGeo.If you are new to open source take this is a great chance to see how OSGeo evaluates software projects and how these checks protect you!For managers it is especially important to understand the risks associated with the use of open source. Understand what assurances OSGeo incubation offers, how to double check the results, and what factors are left for your own risk assessment.If you are a developer considering getting involved in OSGeo this is great talk to learn what is involved, how much work it will be, and how you can start!Come see what makes OSGeo more than a user group!
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
28:27 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Js.Geo part Deux recap

For those of you sad pandas who couldn't make JS.geo on Tuesday, we will give a quick intro as to why scheduling was so hard this year, a quick tour of some of the amazing demos, highlights of the discussion from the day, and wrap up with what we would like to do to see it go smoother next year. Be there or be square (actually all that would happen is you would miss out on the coolest tech demo'ed at FOSS4G)!
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
51:39 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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PostGIS Feature Frenzy

PostGIS has over 300 functions, which in turn can be used with the many features of the underlying PostgreSQL database. This talk covers some basic and not- so- basic ways to use PostGIS/PostgreSQL to process spatial data, to build infrastructures, and to do crazy things with data. Consider the possibilities: raster, topology, linear referencing, history tracking, web services, overlays, unions, joins, constraints, replication, json, xml, and more!
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:43 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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projections in web browsers are terrible and you should be ashamed of yourself

The JavaScript port of proj4 was (relatively) recently moved from subversion to github and updated to use modern build tools.The talk will discuss some of the differences between desktop and web environments when it comes to projections and CRS, other new projects that take a different perspective on projections (like topojson), and why you can't just use an EPSG number in your browser (and should be ashamed of yourself wanting to).
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
35:38 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Mapping in GeoServer with SLD and CSS

Various software can style maps and generate a proper SLD document for OGC compliant WMS like GeoServer to use. However, in most occasions, the styling allowed by the graphical tools is pretty limited and not good enough to achieve good looking, readable and efficient cartographic output. For those that like to write their own styles CSS also represents a nice alternatives thanks to its compact-ness and expressiveness.Several topics will be covered, providing examples in both SLD and CSS for each, including: mastering multi-scale styling, using GeoServer extensions to build common hatch patterns, line styling beyond the basics, such as cased lines, controlling symbols along a line and the way they repeat, leveraging TTF symbol fonts and SVGs to generate good looking point thematic maps, using the full power of GeoServer label lay-outing tools to build pleasant, informative maps on both point, polygon and line layers, including adding road plates around labels, leverage the labelling subsystem conflict resolution engine to avoid overlaps in stand alone point symbology, blending charts into a map, dynamically transform data during rendering to get more explicative maps without the need to pre-process a large amount of views. The presentation aims to provide the attendees with enough information to master SLD/CSS documents and most of GeoServer extensions to generate fast, appealing, informative and readable maps.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:22 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Serving high-resolution sptatiotemporal climate data is hard, let's go shopping

The world is a big place and time is infinite. Scientists who study any aspect of the Earth's climate are immediately faced with the exponentially growing amount of data that are required to represent properties of the climate in both time and space. The bulk of these data is a substantial barrier to extracting meaningful information from their contents. This barrier can be prohibitive to smaller-scale researchers and communities that want to study and understand the impact of the climate on their localities. Fortunately, a substantial amount of free and open source software (FOSS) exists upon which one can build a great geospatial data application.The Pacific Climate Impacts Consortium (PCIC), a regional climate services provider in British Columbia, Canada, has been making a concerted effort to use geospatial FOSS in order to expand the availability, comprehensibility and transparency of big climate data sets from the Coupled Model Intercomparison Project (CMIP5) experiment. With a full stack of geospatial FOSS and open protocols we have built and deployed a web platform capable of visualizing and distributing high-resolution spatiotemporal raster climate data.Our web application consists of:+ back-end storage with raw NetCDF4/HDF5 files+ a PostgreSQL/PostGIS database for indexed metadata+ ncWMS for maps and visualization+ the PyDAP OPeNDAP server for data requests+ a web user interface to tie it all togetherThis presentation will provide a case study for enabling scientific collaboration using FOSS and open standards. We will describe our application architecture, present praise for and critique of the components we used, and provide a detailed discussion of the components that we had to improve or write ourselves. Finally, though our use case is specific to climate model output, we will provide some commentary as to how this use case relates to other applications of spatiotemporal data.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:27 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Open Web Mapping: An educational resource for creating online maps using free and open source software

Free and open source software (FOSS) for GIS continues to increase in functionality and usability, and offers a flexible and economic option for organization that want to create online maps; however, beginners face a broad array of software choices and may not know which FOSS products and packages to deploy in each tier of the web map architecture. Compounding the problem is the fact that much documentation for FOSS GIS is fragmented among these tier-specific products and does not provide end-to-end workflows for designing and publishing cartographic web services and assembling them into an online map product. In response to these needs, The Pennsylvania State University has introduced an open online course entitled Open Web Mapping. The course lessons explain the theory and architecture of web mapping, while walking beginners through the process of deploying online maps with FOSS. Software such as QGIS, GDAL, GeoServer, TileMill, and OpenLayers is introduced as students start from the data processing stage and work their way to the final display of interactive web service layers in a browser-based map. The course is intended as an open resource for the entire FOSS community; therefore, the lesson materials are freely accessible through a Creative Commons license.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
29:54 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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MapServer #ProTips

MapServer is a fast, flexible and extremely powerful tool for creating dynamic maps for the Web. Underneath the hood, MapServer offers many powerful and advanced features that many users never dig into, and new features are being added constantly. Come learn about some of the more advanced features of MapServer, from heat maps to 3D WFS services to exporting data to GDAL file formats to very complex symbology and labeling. Learn simple and advanced use cases and debugging techniques for some of these advanced features from two presenters with over 20 years combined experience of using MapServer. A live MapServer instance will be used during this presentation (yes we are crazy!).
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
23:33 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Gimme some YeSQL ! - and a GIS -

So long NoSQL, here is YeSQL !Not long ago, PostgreSQL was the the most advanced OpenSource relational database. With the latest version 9.4, it became an over-powerful mutant : the most advanced OpenSource Object-Oriented relational and/or non-relational, Spatial, SQL and/or NoSQL database. For the sake of simplicity, let us call it a YeSQL database.This presentation will introduce you to the feature galore of PostgreSQL, giving insights into the latest improvements from a user point of view. Of course some GIS inclination will drive this talk, and show you how you can take advantage of spatial extensions together with PostgreSQL core features.PostgreSQL 9.4 is an important milestone for various reason : a lot of new outstanding features, and core improvements which prefigure a whole world of new use cases. The main feature from a user perspective, giving PostgreSQL this YeSQL title, is probably the new JSONB storage. A fine marriage between the Hstore extension and JSON support, it literally transforms PostgreSQL into a document database (think MongoDB in PostgreSQL without data losses).We will therefore present great PostgreSQL 9.4 features, and some ways to use them with spatial data, leveraging the latest PostGIS and PointCloud extensions :* Exclusion constraints* KNN search* Lateral joins* Window functions* (writeable) (recursive) CTE* Automatic updateable views* Materialized views* JSON, more JSON, JSON indexing, JSON proceduresÉ* Foreign Data Wrappers* Logical decoding and future applications* More JSON ? GeoJSON ?The feature set available to PostgreSQL users is growing with every release, as are performances. And the spatial part of it is not lagging behind. It is a must-use platform for data management, data infrastructures. And a GIS.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:22 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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"Fast Big Data?" A High-Performance System for Creating Global Satellite Image Time Series

Description:We describe a system that transforms sequences of MODIS images covering the entire Earth into time-optimized data cubes to provide rapid access to time series data for various applications.Abstract:Satellite time series data are key to global change monitoring related to climate and land cover change. Various research and operational applications such as crop monitoring and fire history analysis rely on rapid access to extended, hyper-temporal time series data. However, converting large volumes of spatial data into time series and storing it efficiently is a challenging task. In order to solve this Big Data problem, CSIR has developed a system which is capable of automated downloading and processing of several terabytes of MODIS data into time-optimized "data cubes." This time series data is instantly accessible via a variety of applications, including a mobile app that analyzes and displays 14 years of vegetation activity and fire time series data for any location in the world. In this presentation we will describe the implementation of this system on a high-performance Storage Area Network (SAN) using open source software including GDAL and HDF5. We discuss how to optimally store time series data within HDF cubes, the hardware requirements of working with data at this scale as well as several challenges encountered. These include writing high-performance processing code, updating data cubes efficiently and working with HDF data in a multi-threaded environment. We conclude by showing visualizations of our vegetation and burned area time series data in QGIS, web apps, and mobile apps.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:26 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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The Manager's Guide to PostGIS

Your staff keep talking about this "PostGIS" thing, but what is it? Does anyone (important) else use it? What for?This talk gives a brief overview of the place of PostGIS in spatial IT architecture, how PostGIS compares to proprietary alternatives, who is using PostGIS, and how organizations transition to open source databases.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
25:23 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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GeoServer Feature Frenzy

What can you do with this GeoServer thing? This talk covers some of the basic (and not so basic) ways to use GeoServer to publish your geospatial data and make it look great!GeoServer made its first release in 2001 and has grown into an amazing, capable and diverse program. This also means the "feature list" is spread over years of release announcements, presentations, mailing list archives!This presentations provides a whirlwind tour of GeoServer and everything it can do today!This talk is a visual guide to the features of GeoServer. Are you just getting started with GeoServer, or considering it for the first time? Attend this talk and prioritize what you want to look into first. Are you an expert user who has been running GeoServer since Java 1.4? Attend this talk and see what tricks an optimisations you have been missing out on!
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
31:40 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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GeoNetwork opensource 3.0

The presentation will provide an insight of the new functionality available in the latest release of the software. Publishing and managing spatial metadata using GeoNetwork opensource has become main stream in many Spatial Data Infrastructures. GeoNetwork opensource 3.0 comes with a new, clean user interface based on AngularJS, Bootstrap and D3. Other topics presented are related to performance, scalability, usability, workflow, metadata profile plugins and catalogue services compliance. Examples of implementations of the software will also be given, highlighting several national European SDI portals as well as work for Environment Canada and the collaboration with the OpenGeoPortal project.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
57:42 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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The Development and Evolution of an open source mapping application within the USG <- Now with More Google Glass

The United States Government has a history of developing applications using legacy systems and continuing to use brittle software. This approach has managed to minimize data collection, sharing and use of open standards. With this in mind NGA has several groups focused on a rapid, innovative, and open approaches to application development. One of the recent applications developed in this fashion is the Mobile Analytic GEOINT Environment (MAGE), which evolved from earlier applications that were used for Disaster Response as well as various special events. Each of these earlier applications had their own strengths and weaknesses that were factored in during the development of MAGE. MAGE is built on an open source stack with a mobile and html5 application designed for geospatial data collection, imagery sharing, tracking, and communication. It is designed to be a lightweight, fully portable software stack that can be placed in front or behind firewalls with ease. It is fully customizable to a wide variety of mission needs so administrators can easily change the data collection parameters. MAGE is fully service enabled allowing easy access to the data via REST requests and returns multiple formats including GeoJSON, KML, and Shapefile to ensure ease of access and sharing. The app has also been ported to Google Glass for field collection and enhanced visualization.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:37 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Client-side versus server-side geoprocessing: Benchmarking the performance of web browsers processing geospatial data using common GIS operations.

Are web browsers ready to handle a larger portion of the processing load in our GIS applications? Web-based GIS and mapping applications are traditionally based on a client-server model, where most of the data processing work is placed on the server. This study examines what happens when that processing load is shifted to the client, using JavaScript to process geospatial data with GIS operations directly in the browser.The time needed to complete common GIS tasks using the JavaScript library JSTS Topology Suite were benchmarked in popular web browsers including Chrome, Firefox, Internet Explorer, Opera, and Safari. The GIS operations buffer, union, and Voronoi diagram were tested with a suite of points, lines, and polygons ranging in size from 10 up to 100,000 vertices. The testing platforms included Windows, Mac, and Linux desktops and laptops.The same geoprocessing tests were conducted on a cloud-based Linux server using the Java library JTS Topology Suite as a performance comparison of server-side processing applications. The various testing configurations were then analyzed to see how browsers stack up to the performance of traditional client-server applications.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
20:36 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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GIS in the Browser - The Good Parts

Long gone (hopefully) are the days of replicating the "professionals only" desktop GIS interface in a browser. However, with modern browsers, HTML5 APIs, and increased efficiency of javascript engines it is possible to performantly replicate GIS functionality in a purely client-side browser application. Moderately complex geoprocessing, persistent client-side storage and simple to complex data visualization are all possible now. We walk through the underlying technology and demonstrate the practical use of it in an open-source sample application. Technologies covered include IndexedDB, WebStorage, Workers, Strongly Typed Arrays and Canvas. Some attention will also be paid to performance limitations, browser support and polyfills for older browsers.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:57 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Real-time Scenario Planning with OpenLayers

Area-based planning processes are rapidly moving from paper and desktop GIS based processes to online applications offering real-time analysis and feedback. Users want an interactive and informative experience allowing them to generate reports and analysis without needing to understand the subtleties of GIS or spatial analysis. They expect a compelling user experience that works on a variety of platforms Ð ranging from old or outdated browsers to tablets and smart phones.Building from years of experience (and standing on many shoulders), this talk demonstrates some of the strategies and techniques achieved for the Marine Planner platform, an online open-source map viewer and decision support tool. These strategies include UTFGrids, tile caching, pre-processing, and standard and forked OpenLayer libraries, among others. The result is large-scale scenario planning tools with a responsive and compelling user-experience that anyone who has used online maps can figure out.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
28:23 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Supporting Open Data with Open Source

Within the US Federal Government, there is a trend towards embracing the benefits of open data to increase transparency and maximize potential innovation and resulting economic benefit from taxpayer investment. Recently, an Executive Order was signed specifically requiring federal agencies to provide a public inventory of their non-restricted data and to use standard web-friendly formats and services for public data access. For geospatial data, popular free and open source software packages are ideal options to implement an open data infrastructure. NOAA, an agency whose mission has long embraced and indeed centered on open data, has recently deployed or tested several FOSS products to meet the open data executive order. Among these are GeoServer, GeoNode, and CKAN, or Comprehensive Knowledge Archive Network, a data management and publishing system.This talk will focus on how these three FOSS products can be deployed together to provide an open data architecture exclusively built on open source. Data sets hosted in GeoServer can be cataloged and visualized in GeoNode, and fed to CKAN for search and discovery as well as translation to open data policy-compliant JSON format. Upcoming enhancements to GeoNode, the middle tier of the stack, will allow integration with data hosting backends other than GeoServer, such as Esri's ArcGIS REST services or external WMS services. We'll highlight NOAA's existing implementation of the above, including the recently-deployed public data catalog, https://data.noaa.gov/, and GeoServer data hosting platform, as well as potential build out of the full stack including the GeoNode integration layer.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:35 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Managing public data on GitHub: Pay no attention to that git behind the curtain

The Atlanta Regional Commission (ARC) continuously solicits feedback on transportation data from local government partners. Historically, this process has taken the form of lots of markings on plotted maps with immeasurable amounts of manual work on the tail end to organize and interpret this feedback. Many tools developed specifically for this process today often fall short of the needs of agencies (such as geospatial presentation and tracking comments), yet the cost to develop or implement custom software is generally out of reach for government agencies.This presentation introduces a case study of the process to develop geospatial collaboration tools for managing transportation data directly hosted on GitHub pages (currently in development at http://atlregional.github.io/plan-it/ and http://atlregional.github.io/fc-review/). This approach was partially inspired by GitHub's recent features additions that make collaborating on geospatial data simple and elegant. Because these data span both functional and jurisdictional divisions, many of the greatest challenges have been project management related --- coordinating stakeholder feedback and project requirements. However, by utilizing the existing git/GitHub infrastructure, many of these requirements can be managed cost effectively. Moreover, the framework allows for direct integration with other application environments via the GitHub API and GDAL Tools, ensuring that local modifications to project data are committed back to the data repository.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:53 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Raster Data In GeoServer And GeoTools: Achievements, Issues And Future Developments

The purpose of this presentation is, on a side, to dissect the developments performed during last year as far as raster data support in GeoTools and GeoServer is concerned, while on the other side to introduce and discuss the future development directions.Advancements and improvements for the management of raster mosaic and pyramids will be introduced and analyzed, as well as the latest developments for the exploitation of GDAL raster sources.Extensive details will be provided on the latest updates for the management of multidimensional raster data used in the Remote Sensing and MetOc fields.The presentation will also introduce and provide updates on the JAITools and ImageIO-Ext projects. JAITools provides a number of new raster data analysis operators, including powerful and fast raster algebra support. ImageIO-Ext bridges the gap across the Java world and native raster data access libraries providing high performance access to GDAL, Kakadu and other libraries.The presentation will wrap up providing an overview of unresolved issues and challenges that still need to be addressed, suggesting tips and workarounds allowing to leverage the full potential of the systems.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:32 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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GIS in Node.js

An overview or GIS tools in server side JavaScript covering turf, proj4js, topojson, mbtiles and integration with Node.js idea like streams.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:10 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Developing Tools for Humanitarian Decision Making

The American Red Cross International Services Department (ISD) and project partners are developing a web visualization tool (Mapfolio) to help to visualize Red Cross's disaster response and humanitarian projects around the world. The solution uses innovative Node.js ETL processing to process information from the Red Cross Salesforce Information Management platform. The Mapfolio is open source built on Node.js, Angular, Leaflet, PostGIS, and a custom PGRestAPI (Chubbs). Other technical advances include a custom Leaflet clipped-polygon labeling as well as a map-view-dependent (not zoom level dependent) display of global administrative boundaries. This session will not only walk through the open source components but will also focus on how the Red Cross defined clear deliverables and scaled-up its support of free and open source software.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:23 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Adopting OGC Standards in a Flood Alert System

This presentation is about the adoption of the OGC - Open Geospatial Consortium standards in Sao Paulo Flood Alert System which was based on matrix coordinates and static maps.The Flood Alert System has more than 300 telemetric stations composed by rain gauges, water level sensors placed on rivers and reservoirs, water quality sensors, weather stations and a S-band weather radar reaching 240 kilometers of scanning range. The system offers Real Time support for a large metropolitan area and its Emergency Centers, Civil Defense groups, Government, Service companies and general public.We have integrated Geotools (for data conversion), Geoserver (services like WMS, WFS), DB2, OpenStreetMap, uDig, Quantum GIS and some other softwares in our architecture. This set of tools provides many possibilities to easily integrate our data with other systems and external data, like some Hydraulic and Hydrological models that return geospacial data with flooding area forecast and vulnerable buildings.Talking about the architecture, the adoption process, some of the issues, apllied solutions and further development.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
20:44 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Crazy data: Using PostGIS to fix errors and handle difficult datasets

Inteligeo is a system that stores a lot of information used by the Brazilian Federal Police Forensics to fight crime, initially in the environmental arena with a later expansion to other types of crime. During the construction of the database a lot of problems appeared for which PostGIS was the key to the solution.This presentation describes problems encountered by the team while loading 850+ shapefiles into the database, linking with external databases and building 950+ views of the data.Although the content of the recipes is very technical, the general concepts will be explained in an accessible language and correlated to real world cases.Topics:*Definition of crazy data in our context*Quick recipes- Spike removal- Invalid geometry detection and fixing- Filling holes- Raster image footprints- Hammering data into correct topologies- Speeding data visualization with ST Simplify and PGSQL 9.3's materialized views- Rough georeferencing using an auxiliary table- Creating constraints*How is crazy data generated and our experience in handling each case- Large datasets- Lack of validation- Reprojection- Geometric operations- Topological errors- Imprecise definitions- Legacy databases- Bad georeferencingWe will also discuss why is handling crazy data important for the Brazilian Federal Police, our efforts in cleaning up data at the source and the implications of geographical data in general for fighting crime.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
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AV-Portal 3.7.0 (943df4b4639bec127ddc6b93adb0c7d8d995f77c)