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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
26:30 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Educating 21st Century Geospatial Technology Industry Workers with Open Source Software

Where are GIS educators to go when they need educational material to teach FOSS4G in their academic programs? While commercial vendors, like Esri through their Virtual Campus, have a wealth of training material available, there are very limited resources for educators seeking to teach FOSS4G. The new QGIS Academy program is the first national effort to provide this much need academic infrastructure. The Academy has produced a set of five full GIS courses, based on the latest version of QGIS, to offer educators and others for free under the Creative Commons CC BY license. These courses have been under development since 2010 and use the US Department of Labor Geospatial Technology Competency Model (GTCM) as the basis for their scope and sequence. This presentation will demonstrate the courses and discuss their development and future plans.
  • 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
1:02:01 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Mapping for Investigations

Closing Keynote Speech, FOSS4G 2014, Portland, Oregon.
  • 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
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
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
27:41 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Geodesign: An Introduction to Design with Geography

Geodesign, at its most basic, is design with geography. It is the combination of the tools and techniques geographers and other geoscientists use to understand our world with the methods and workflows designers use to propose solutions and interventions. For instance, the typical master planning process in which GIS-based knowledge is separated from the design process can be turned into a geodesign task by sketching buildings and other land uses directly within a GIS, and seeing indicators update on the fly as various data graphics. This can then allow the designer(s) to pinpoint specific design interventions based on live feedback from geospatial information.Over the last 10 years, technology has facilitated an explosive growth in geodesign as both a framework for solving problems and a toolkit of geospatial analyses that feed into that framework. The growth of the Geodesign Summit in Redlands, CA from 2010 to 2014 is an example of the demand for this sort of framework.Parallel to the rise of geodesign, the tools represented by FOSS4G have also been evolving into sophisticated tools capable of taking on the needs of geodesign. However, to date there's been too little discussion of how to take the framework and working methods of geodesign and accomplish them with open source tools. This session will connect those dots by taking the typical parts of a geodesign framework (suitability analysis, sketching/designing, evaluating/comparing, iterating) and outlining our own experience making use of open source tools for geodesign. In particular, we will focus on how the interoperability of open source tools and the growth of web-based geospatial tools can support (and evolve!) the ways that geodesign is done.This presentation will address:What is geodesign: the conceptual framework and typical use cases for geodesignWhere are we: workflows and tool stacks we've used and seen others use to dateWhere could we go: identifying current gaps and pain points in existing stacks and possible solutions from emerging technologies
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
52:28 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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The Toolmaker’s Guide

Opening Keynote, FOSS4G 2014, Portland, Oregon
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:37 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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GIS goes 3D : an OpenSource stack

3D in GIS is already here, with more and more data available, and new hardware and sensors for 3D data capture and interaction. The third dimension becomes useful for several use cases and applications, since the technology is now available to achieve full 3D spatial analysis, like 3D intersections, 3D buffers, triangulation and a lot of other data processing capabilities we already use with 2D data. 3D Point clouds from Lidar data, 3D Meshes or TIN, this can now be stored and processed.With 3D data, an absolute must-have is a nice, fast and smooth rendering of features. Visualization is a key element of a complete vertical software stack of 3D data management.This presentation will demonstrate the ability to setup and take advantage of a full FOSS4G 3D stack.Taking data from 3D sensors, or real use-case GIS Open Data, we present the components which can be used together to build the core infrastructure of 3D data management. From data storage to data visualization, through processing and webservices.* Learn how you can use PostgreSQL and PostGIS latest enhancement to store and process 3D data.* Discover how you can setup 3D Web Services for data dissemination* Visualize 3D data with QGIS thanks to the Horao Plugin* Find out the visualization tools available for your favorite browser (Three.js powered)Here we are, a full 3D stack, with OpenSource tools. Software components, data formats, protocols and standards, you will get a global picture of the infrastructure available to extract the value out of your 3D data.
  • 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
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
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
26:15 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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GRASS GIS 7: your reliable geospatial number cruncher

GRASS GIS (Geographic Resources Analysis Support System) looks back to the longest development history in the FOSS4G community. Having been available for 30 years, a lot of innovation has been put into the new GRASS GIS 7 release. After six years of development it offers a lot of new functionality, e.g. enhanced vector network analysis, voxel processing, a completely new engine for massive time series management, an animation tool for raster and vector map time series, a new graphic image classification tool, a "map swiper" for interactive maps comparison, and major improvements for massive data analysis (see also http://grass.osgeo.org/grass7/). The development was driven by the rapidly increasing demand for robust and modern free analysis tools, especially in terms of massive spatial data processing and processing on high-performance computing systems. With respect to GRASS GIS 6.4 more than 10,000 source code changes have since been made.GRASS GIS 7 provides a new powerful Python interface that allows users to easily create new applications that are powerful and efficient. The topological vector library has been improved in terms of accuracy, processing speed, and support for large files. Furthermore, projections of planets other than Earth are now supported as well. Many modules have been significantly optimized in terms of speed even by orders of magnitude. The presentation will showcase the new features along with real-world examples and the integration with QGIS, gvSIG CE, R statistics, and the ZOO WPS engine.
  • 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
24:57 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Finding the Where in Big Fuzzy Data

We've gone to plaid. It is now easier to store any and all information that we can because it might be useful later. Like a data hoarder, we would rather keep everything than throw any of it away. As a result, we now are knee-deep in bits that we are not quite sure are useful or meaningful. Fortunately, there is now a mature, and growing, family of open-source tools that make it straight-forward to organize, process and query all this data to find useful information. Hadoop has been synonymous with, and arguably responsible for, the rise of 'The Big Data'. But it's not your grandfather's mapreduce framework anymore (ok, in internet time). There are a number of open-source frameworks, tools, and techniques that are emerging that each provide a different speciality when managing and process fast, big, voracious data streams.As a Geo-community we understand the potential for location to be the common context through which we can combine disparate information. In large amounts of data with wide variety, location enables us to discover correlations that can be amazing insights that otherwise were lost when looking through our pre-defined and overly structured databases. And by using modern big data tools, we can now rapidly process queries which means we can experiment with more ideas in less time.This talk will share open-source projects that geo-enable these big data frameworks as well as use case examples of how they have been used to solve unique and interesting problems that would have taken forever to run or may not have even been possible.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
33:05 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Mapping Words and Phrases from Geographic Knowledge on the Web

Extremely rich and diverse knowledge about places across the world is available online in a variety of forms, including structured data, image, and natural language description. Map-based exploration of this knowledge has potential to aid a number of applications from education to marketing. In this presentation we describe a system to map geographic regions associated with arbitrary keywords, phrases, and texts by computing topic surfaces over the Earth from unstructured natural language text. Our methodology combines natural language processing and geostatistics and is built using freely available open source tools. We train our system on Wikipedia and travel blog entries and demonstrate it with a general-purpose geographic knowledge exploration tool.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:08 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Update on new OGC Standards: GeoPackage, OWS Context & Geosync

This presentation presents an overview on new OGC standards and developer tips on how to build your own implementations from scratch or on top of existing open source libraries that implement them. We cover GeoPackage, the new SQLite-based geospatial data format; OWS Context for describing a group of related spatial data resources (e.g. for map composition); and the emerging Geosync architecture based on lessons from CouchDB.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
29:15 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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TeachOSM

For the past three years Nuala Cowan & Richard Hinton of the Geography department at the George Washington University have integrated the open source mapping platform, OpenStreetMap into the curriculum for their introductory undergraduate Geographical Information Systems (GIS) & Cartography classes; traditionally the domain of desktop, proprietary software. Professors Cowan and Hinton have sought to expand the traditional curriculum, and expose students to various different open source software's, web based platforms, and data collection initiatives, specifically in a service-learning environment.In collaboration with both local & international partners (American Red Cross 2012, USAID 2014), GW Geography students have used high-resolution satellite imagery to trace road and building infrastructure (Columbia & Indonesia 2012, Kathmandu 2013, Philippines & Zimbabwe 2014), data that is subsequently used to support disaster preparedness efforts.Initiated by a small innovative teaching grant we have started work with OpenStreetMap foundation to develop a web site that would allow other instructors to replicate our mapping assignment specific to their particular discipline and curricular needs. This site is called TeachOSM.org. Our funding has since been matched by the World Bank, USAID (OTI and The Geocenter), the State Department and The American Red Cross. With this funding the scope of the project has been expanded to include the redevelopment of the OSM Tasking manager. The OSM Tasking Manager is a custom-mapping tool that facilitates collaborative mapping projects with a humanitarian focus. The purpose of the tool is to divide a mapping job into individual smaller tasks for group work, while guaranteeing coverage and minimizing overlap. New additions to the Tasking Manager will allow instructors to assign cells to individual students for both data creation, and data validation roles.Mapping has applicability across many fields and communities of interest, and can used to document, archive, plan and contribute to both local and international initiatives.Open source mapping modules and assignments are also a unique way to integrate service-learning strategies in course curriculum, while exposing students to new and exciting technological platforms. The experience teaches civic responsibility and the value of collaborative efforts in the global community.The collaborative mapping initiatives at GWU Geography have been exclusively disaster related to date, as this coincides with the research interests of the faculty involved. We believe this instructional module/assignment is applicable to many disciplines and teaching scenarios, and the objective of the TeachOSM platform is to open that possibility to these other fields, in a comprehensive user friendly way.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:56 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Case Study: Developing OpenLayers-based Mobile Applications

Developing an application with the capability to view, collect, and edit geospatial data in connected, limited connectivity, and disconnected environments was a necessity for the ROGUE project. The first version of the application was developed using Cordova/PhoneGap, with everything written in html, css, and javascript, using OpenLayers 2.13 as the mapping library, and jQuery Mobile for the UI. Due to various UI concerns, we decided to implement another version utilizing as much of the native Android API as possible. We also developed a third mobile application using OpenLayers 3 as the mapping library, and Bootstrap for the UI. This talk will cover our experience developing these three geospatial mobile applications, specifically the differences between the approaches we took and any challenges that we overcame.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:48 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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State of QGIS Server

QGIS server continues to grow with an active community and expanding user base. Besides new styling features shared with QGIS desktop, new services have been added continuously. OGC WFS (Web Feature Service) and WFS-T were the first additions to WMS, recently followed by an OGC WCS (Web Coverage Service) implementation. The map service itself also got several additions besides the GetPrint request for delivering PDF outputs made with QGIS print composer. Performance and scalabilty has been steadily improved and brought to the same level as other established map servers. PDF outputs got recently support for dynamic texts and images (e.g. QR codes) and server-side GeoJSON rendering allowing redlining implementations.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:36 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Big (enough) data and strategies for distributed geoprocessing

Big data gets a lot of press these days, but even if you're not geocoding the Twitter firehose, "big enough" data can be a pain - whether you're crashing your database server or simply running out of RAM. Distributed geoprocessing can be even more painful, but for the right job it's a revelation!This session will explore strategies you can use to unlock the power of distributed geoprocessing for the "big enough" datasets that make your life difficult. Granted, geospatial data doesn't always fit cleanly into Hadoop's MapReduce framework. But with a bit of creativity - think in-memory joins, hyper-optimized data schemas, and offloading work to API services or PostGIS - you too can get Hadoop MapReduce working on your geospatial data!Real-world examples will be taken from work on GlobalForestWatch.org, a new platform for exploring and analyzing global data on deforestation. I'll be demoing key concepts using Cascalog, a Clojure wrapper for the Cascading Java library that makes Hadoop and Map/Reduce a lot more palatable. If you prefer Python or Scala, there are wrappers for you too.Hadoop is no silver bullet, but for the right geoprocessing job it's a powerful tool.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
21:58 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Spatio-temporal data visualization in GRASS GIS: desktop and web solutions

GRASS GIS, a free and open source geographic information system, provides the functionality to manage, analyze and visualize geospatial data. Recently, support for managing the temporal dimension has been integrated into GRASS GIS as a response to an increasing accessibility and importance of spatio-temporal data. However, to fully benefit from such data new capabilities for exploratory visualizations are needed. We present a set of tools for spatio-temporal data visualization which reflects data complexity and also supports online sharing. The GRASS GIS Animation Tool is a desktop application working directly with different types of spatio-temporal data stored in GRASS GIS. We can display synchronized animations of raster, vector and 3D raster data in two- and three-dimensional views. To share spatio-temporal visualizations online, we have developed web map applications which enable users to explore the data as animations or derive supporting information such as histograms. Our solution does not require any server-site application and enables a file-based offline sharing and an easy online publication without any special requirements on users' software or servers. We demonstrate the desktop and online tools on several use cases, namely solar radiation and fire spread modeling, volumetric soil moisture analysis, and cumulative cost surface visualization.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
29:23 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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A GeoNode primer.

GeoNode is a web-based extendable platform for the management and publication of geospatial data. It brings together mature and stable open-source software projects under a consistent and easy-to-use interface allowing users, with little training, to quickly and easily share data and create interactive maps. This talk will be a high-level overview, suitable for new users, of the application's functionality including examples of the creative ways organizations are using GeoNode. This talk will also cover new functionality being added in the 2.1 release and the status of that release.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
29:40 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Accurate polygon search in Lucene Spatial (with performance benefits to boot!)

Lucene, and the NoSQL stores that leverage it, support storage and searching of polygonal records. However the spatial index implementation traditionally has returned false matches to spatial queries.We have contributed a new spatial indexing strategy to Lucene Spatial that returns fully accurate results (i.e. exact matches only).Better still, this new spatial search strategy often enables keeping a smaller index and and faster retrieval of results.I will illustrate why false matches happen -- this requires a high-level walkthrough of spatial index trees -- and real world cases where it makes a difference.Our initial workaround was to query Elasticsearch through a separate server layer that post-filters Elasticsearch results against the query shape, removing the false matches.We've now built a similar approach into Lucene Spatial itself. By virtue of living inside, this new solution can take advantage of numerous efficiencies:1. it filters away false matches before fetching their document contents;2. it uses a binary serialization that is far faster than the GeoJSON we used before;3. it optimizes the tradeoff between work done in the index tree vs. post-filtering, often resulting in a smaller index and faster querying. I will provide benchmark numbers.I'll illustrate how developers and database administrators can use this improvement in their own databases (it's easy!).
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
18:21 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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PyWPS - 4 project report

PyWPS is one of the first implementations of OGC Web Processing Service (OGC WPS 1.0.0) on the server-side, using Python programming language. Since it's beginning in 2006 it was offering support for running scripts of GRASS GIS and other popular libraries, such as R, GDAL, Proj4 and other. Users of PyWPS can write their server-side geo-scripts and interface them on the internet using standard WPS interface.During last two years, PyWPS development team was discussing new features, users would like to see in this popular OGC WPS Server implementation. Users were missing for example proper support for multiple in- and outputs, advanced logging, more natural serializing, possibility to store big data to external services. PyWPS was never validating properly input data, as long as underlying libraries were able to read them.Also new versions of nearly everything are at hand - Python 3, GRASS GIS 7 with proper Python support, Fiona, Shapely, no need to write custom code, when OWSLib is around. New formats are now used for sharing of raster and vector data, for example Geo- and TopoJSON. They can be even validated, using json-schema. Python became The geo-scripting language since 2006 (now being slowly replaced by JavaScript).Current work on PyWPS 4 is split into several fields: New WSGI interface was written, using Werkzeug. PyWPS has now new core for in- and output data structures (LiteralData and ComplexData). New IOHandler base object can seamlessly switch between file-, stream-like- and in-memory objects.PyWPS - 4 contains validators of input complex data, which uses four-level of validation (None, mime-type based, "can read GDAL", schema validation) for XML-based format (like GML) but also for JSON-based formats (like GeoJSON). Literal data are validated on similar way.We are going to support MapServer, Geoserver and QGIS MapServer in the future for output complex data management and serving. Data are going to be stored in storages (new abstract class defined), which currently is file system based by now, but can be extend to remote storage (such as FTP or e.g. Dropbox), or to database servers. Possibilities of WPS-T are discussed as well.PyWPS - 4 will remain the old PyWPS, how our users do like it: small, fast to install and configure, fast to run. But with new features at hand, we will provide you with modern, safe, scalable tool, which you can use to interface the work of yours on the internet.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
22:19 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Disparate data, technology fiefdoms and 65 pictures of your cat

Up in the frozen wastes of the Northern British Columbia, we organized a hackathon. We based it on the ideas of open data and civic applications.Our hardy hackathoners pulled together a number of excellent ideas but met with a constant and obtrusive barrier: that open data maybe open but with out some level of standardization its not actually very useful.Now, no one said that data had to be 'useful', and perhaps if we want the technology utopia of real open data interoperability we will need to "build it" ourselves, but it is worth noting that talking the same language as our neighbours is generally awesome. Indeed, perhaps rather than swearing fealty to our technology overlords and just pressing the "publish document to open data platform" button, we could think about the commonwealth of data. The value of any data increases wildly with density and open data should be more valuable!The cats? well you'll have to tune in for that bit.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
29:27 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Evaluation of Web Processing Service Frameworks

In this presentation, I illustrate, and discuss initial results from a quantitative analysis of the performance of WPS servers. To do so, two test scenarios were used to measure response time, response size, throughput, and failure rate of five WPS servers including 52¡North, Deegree, GeoServer, PyWPS, and Zoo. I also assess each WPS server in terms of qualitative metrics such as software architecture, perceived ease of use, flexibility of deployment, and quality of documentation. A case study addressing accessibility assessment is used to evaluate the relative advantages and disadvantages of each implementation, and point to challenges experienced while working with these WPS servers.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
16:56 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Mapping with AngularJS

AngularJS is rapidly gaining popularity and favor in the front-end web development community. Several open-source AngularJS wrappers exist for open and closed source web mapping libraries. This session will survey the landscape of existing mapping library wrappers. Wrappers for OpenLayers, Leaflet, d3, Google Maps, and Esri WebMaps will be examined. Comparisons of the different abilities of these wrappers and the techniques required when using them will be examined. Advantages, strengths, weaknesses, limitations, and "gotchas" will all be examined for the AngularJS interfaces of the different mapping libraries. Attendees should leave the session with an understanding how to best integrate their mapping library of choice within an AngularJS application and how they could help improve these various wrappers.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
54:53 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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State of GeoServer and GeoTools 2014

GeoServer and the Java toolkit GeoTools comprise one of OSGeo's fastest moving mapping ecosystems. In addition to this core we will cover java-stack developments in JTS, GeoWebCache and ImageIO-Ext.First up is "State of GeoServer" reviewing the new and noteworthy features introduced in the past year. Our six month release cycle sees GeoServer 2.5 and 2.6 being released this year. These releases bring together exciting new features: WCS 2.0 and WCS 2.0 Earth Observation profile, batch importer, and a fresh implementation of GetFeatureInfo.Switching to technical for a GeoTools update. A passion for performance sees improvements in PNG and JPEG encoding, rendering from PostGIS and experimental JDK work. This presentation provides a review of new features, api changes and community modules. We have simplified the core FeatureCollection interface, introduced partial 3D support, structured grid coverages, multiple grid coverages and extended JTS Geometry with Curves.Data formats support continues to grow with the latest GeoPackage, native NetCDF support and a new shapefile and wfs client implementation. Database users have table and index management methods to look forward to. Extensions have seen a lot of activity with WMS client improvements, vector grids, and a transform extension for dynamic feature collection processing.Attend this talk for a cheerful update on what is happening with these great OSGeo projects! Whether you are an expert user, a developer, or simply curious what these projects can do for you, this talk is for you.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
26:24 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2014
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Helping Farmers, Helping the Environment: An Affordable GPS Guidance System for Agricultural Sprayers

Little open source software finds its way into commercial agriculture and, yet, has the potential to reduce production costs for small farm operations as well as diminish potential harmful impacts on the environment in and around crops. Improving the efficiency of applying herbicides and pesticides can be brought about with improved control of sprayer operation.Row crop agriculture relies upon effective control of weeds and insects while minimizing impact on the environment and the farmer's budget. Using GPS to guide agricultural sprayers through the field can reduce chemical treatments by controlling the position of the sprayer to eliminate overlapping applications or leaving gaps between passes through the field.Commercial GPS guidance systems are economically out of reach for many small farm operations. An open source option has been developed for under 250 to reduce the investment to retrofit sprayers. The sprayer controller system takes advantage of over the counter electronic components and utilizes Python to encourage a larger audience of developers to participate in enhancing the current product.Minimizing the use of agricultural chemicals, along with responsible land management practices, can cut costs to farmers in both time and purchase of herbicides and pesticides. Providing an open architecture for applications to aid small farms in crop management will also benefit responsible stewardship of the natural environment.
  • Published: 2014
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
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Version

AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)