2013 - Geoinformatics

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36 A r t i c l e WPS, server-side scripting and the others available in OpenGeo Suite 3.0 enable you to break free of the traditional notion that spatial data must be routed through a specialized GIS workflow GLOBE system By chaining the interpolation process to the color ramp process, or the interpolation process to the contouring process, the GLOBE could generate attractive outputs that were calculated in real time, so a contour map for the world or any smaller region could be generated for any day that the GLOBE system had data (over a decade’s worth!). Because the GLOBE solution was WPS chaining inside GeoServer it could take advantage of existing facilities to: • Read the data out of the database-agnostic backend. • Convert the value grid into a color grid with existing styling mechanisms. • Convert the grid into contours with an existing contouring WPS. So the only net new code required was the interpolation WPS. This code would read data from any GeoServer data source (files, databases, remote WFS services) and build an interpolated grid using the Barnes interpolation scheme. The results are both attractive and impressively fast. In addition to the interpolation process, the OpenGeo Suite 3.0 ships with a WPS for heat map generation. It works the same way as the interpolation WPS, reading from any data source, and building a value grid that can then be arbitrarily colored using the standard GeoServer styling system. The GLOBE example shows the power of chaining processes together, particularly as the library of available processes grows over time. For upcoming releases of the OpenGeo Suite, additional user interfaces to chain processes visually, as well as clustering capabilities, will be added. This ensures that high loads will be easily distributed between multiple back-end servers. General adoption of open source geospatial and in particular the OpenGeo Suite is being driven by organizations like TriMet, USGS and GLOBE, which require a stable, enterprise ready platform on which to build innovative applications. The transparency of the open source code base and the speed with which fixes and changes can be added, allow organizations building new systems to get beyond the usual routine of working around limitations and waiting for upcoming releases. For the organizations who are wondering, “where will we get support for this software?” and “who is going to fix my bugs?” we also have a ready answer: OpenGeo. Commercial open source providers fill in the gaps between the raw code available from the open source community and the enterprise needs of customers. Until recently, a closed source provider has dominated geospatial web services, but increasingly open source alternatives have been closing the gap. Companies like RedHat and OpenGeo provide an enterprise face and offer a reliable partner to work with on issues from feature development to security enhancements. This cuts software development costs and gives customers a chance to share and optimize resources by working with an expert to steer the software development roadmap. The OpenGeo Suite 3.0 provides enterprises with superior value in delivering geospatial web services, whilst simultaneously increasing the reach and functionality of enterprise systems and controlling costs. Paul Ramsey, GeoSpatial Architect, OpenGeo David Dubovsky, Marketing Manager, OpenGeo URLs http://trimet.org/ - Portland TriMet’s website http://opengeo.org/products/suite/ - The OpenGeo Suite http://blog.opengeo.org/2012/10/03/opengeo-suite-3-0-released/ - OpenGeo Suite 3.0 details http://opengeo.org/publications/commercialopensource/ - Commercial Open Source Whitepaper All of these processes occur on the server, which in effect, designates the server as the place where new processes are defined. Although this is not a new idea, this is a major deviation from the status quo. Additionally, the combination of WPS and server-side scripting allows developers to create processes that perform complex analysis (like those previously mentioned) or any other processes a developer may write. All this is possible using familiar scripting languages like Python and JavaScript. Together these features enable IT professionals to build web applications that can run spatial processes against data in real time, from anywhere, using straightforward web development practices. This is especially exciting for those who recognize that spatial data has become just one aspect of the increasingly complex information technology ecosystem. Tools like June <strong>2013</strong>
37 Stars Aligned, finally, for CAD/Civil/Geo Convergence? C o l u m n As the Architecture/Engineering/Construction (AEC) community, and also owners and managers of buildings, find new ways to use information technology, the lack of interoperability among systems becomes increasingly burdensome. Bart De Lathouwer, Director, Interoperability Programs, Open Geospatial Consortium (OGC) In March, the Open Geospatial Consortium (OGC) Land Development Domain Working Group in partnership with buildingSMART International hosted the inaugural Civil & Land Development Summit <strong>2013</strong> as part of the OGC Technical and Planning Committee meeting in Abu Dhabi. Representatives from building - SMART International, Geonovum, Oranjewould (representing Dutch engineering & construction companies), Esri, ViaNova, Autodesk, iScope (FP7 research project), Cyclomedia and OGC spoke on a variety of topics. Representatives from buildingSMART International (bSI) spoke about OpenINFRA, a fast track initiative to develop bSI/BIM compatible standards for Infrastructure and Civil Works. The openINFRA steering group under chair Christophe Castaing has been laying the groundwork for expanding the scope of bSI standards beyond buildings. OpenINFRA was started by several large infrastructure design, management and construction companies, especially in France, following on from the IFC Bridge project. budgeted over five years. The goal is to eventually have all UK government projects, including infrastructure and civil works, be designed, procured and managed as integrated BIM projects, starting in 2016 with high priority projects. In recognition of the amount of work to be accomplished, bSI has renewed and strengthened its memorandum of understanding with OGC. OGC and bSI are committed to coordinate and collaborate, to avoid duplication of effort and to develop interoperability between bSI and OGC standards in overlapping areas. The goal is to have transparent interoperability from the user perspective. Additionally, the new version of IFC has been released. IFC4 is significant in that it has for the first time a native as well as a simple ifcXML full equivalent. The important point is that this will enable, with some caveats, IFC in-flow data compatibility with new ifcXML-based software for infrastructure. Esri has expressed plans to enable input from IFCBIM to Esri tools. There are growing demands from several governments for integrated BIM that includes Infra - structure design, procurement and operation. The government groundswell is spearheaded by the UK government, but governments in France, Germany, Finland, Norway, the Netherlands and several others also have similar bSI/BIM for Infrastructure initiatives. The UK government is eager to help fund international standards and has officially invited high-level government officials from several countries for a meeting in London, in order to help bSI grow further support and coordinate the work. The UK government's BIM initiative has high-level cabinet support and funding of 50 million pounds The bSI Infrastructure work is being organized as a virtual Room, where several, or hopefully, many projects will simultaneously work on aspects of Infrastructure work. There will be small projects, such as standards for snapping building footprints into coordinates, and larger projects needed to define processes of design and alignments of roads, railways, waterways; linear construction, geotechnical, GIS and system related aspects such as environmental, traffic, control electronics etc. One concrete action agreed at the meeting is for the OGC Land Development Standards Working Group to work with OpenINFRA to create a joint use case repository to inform LandXML evolution and civil engineering standards in general. Latest News? Visit www.geoinformatics.com
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2013 - Geoinformatics

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