WPS

Serving Meteo data with GeoServer, GeoBatch and GeoNetwork: the LaMMA use case

Dear All,in this post I'd like to talk about the work we have done for the LaMMA consortium.The ProblemThe purpose of this project is to build a complete Spatial Data Infrastructure (SDI) to provide a spatio-temporal raster data processing, publishing, and interactive visualisation facility. This platform is candidate to substitute the current one which was already built leveraging on Open Source software but which was rather static and contained no OGC services.The data that will be ingested into the system is generated by an existing processing infrastructure which produces a set of different MetOc models. Our goal is to manage the geophysical...

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Developers Corner: have your SLD transform raster data into vectors on the fly

Hi all,in this post we'd like to share our most recent endeavor in dynamic data rendering within the GeoServer and GeoTools open source projects.The problemSuppose you have a set of scientific raster data sets, maybe they represent some sort of concentration, elevation, or maybe they represent wind, currents, or some other vector phenomena via two bands (one for magnitude, one for direction).Now, you have lots of them and people want to display them in various ways. Raster with color scales are nice, but often you need to render them in other ways, such as contour lines, polygons catching all the...

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Fun Stuff: Computing circular buffers in geographic coordinates

Finding all the objects within a certain distance from a point is surely a common GIS problem. The problem is normally solved using OGC "dwithin" filters or by computing a buffer and then finding all the intersecting objects. Very often both of the approaches fail miserably in case the coordinate system is a geographic one, as common libraries, such as JTS and GEOS, are not able to handle the non planar nature of it. As far as "dwithin" is concerned rencent Oracle and PostGIS versions can manage the problem properly, but what to do if they cannot be used?We had...

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GeoSolutions helps GeoServer WPS going mainstream

GeoSolutions is funding Andrea Aime's time to bring the GeoServer Web Processing Service (WPS) module to become an officially supported extension. A proposal has been submitted and is being voted on by the Project Steering Committe; you can track the progress here.For those who have no idea of what WPS means I can cite part of the description I have found in wikipedia, which is very informative:"The (WPS) is designed to standardize the way that GIS calculations are made available to the Internet. WPS can describe any calculation (i.e. process) including all of its inputs and outputs, and trigger its...

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