Development

OpenLayers has enjoyed a long run as the client-side library of choice for open source web mapping applications. OpenLayers development began at a time when browsers for mobile devices were rudimentary document viewers, and throughout its development, the focus remained on desktop browser based applications. With the proliferation of high-resolution displays on mobile devices, mobile browser capabilities have advanced and in some cases surpassed the average desktop browser.

OpenLayers has finally stepped up to address the mobile browser environment. This talk will focus on developing OpenLayers based mapping applications targeted for mobile browsers. The talk will include demonstrations of applications for a variety of mobile browsers. I'll discuss newly developed functionality within OpenLayers and demonstrate integration of OpenLayers with popular mobile UI frameworks. In addition I'll cover options for building native mobile applications with OpenLayers.

If you're interested in learning about recent OpenLayers development related to mobile mapping applications, this is the talk for you.

Spatial Data Infrastructures have evolved from concepts to reality in the last decade. However, they are still focused on data retrieval and visualization. To proceed in the direction of a true Spatial Information Infrastructure, it is evident to take the processing of geodata into account.

The OGC Web Processing Service Interface (WPS) is the most promising standard to address geoprocessing in a standardized manner.

Several free and open-source WPS implementations exist. However, a common requirement to use most of them is a deep technical knowledge in terms programming or at least low-level configuration in various technical files and format (command lines, undocumented configuration options, compilation, python scripting, xml, yaml, make files, ant files, maven files etc, etc.). User friendly configurations or even out-of-the box usage of a wide variety of Geoprocessing functionality is not supported yet in most cases.

This presentation shows the new features of the 52°North WPS:

• WPS Installation via an Installer
• RESTful Bindings
• Visual selection and configuration of WPS processes from a large set of available processes coming from the FOSS GIS packages GRASS, SEXTANTE, ArcGIS Server, Python and R.
• Execution of Processes via OpenLayers
• Direct Storage of results in a WMS/WFS/WCS

This presentation will provide the attendee with an introduction to the GeoServer WPS 1.0 functionality. We will start by a brief introduction to the WPS protocol, show how GeoServer available functionality maps onto it, and show the support for quickly building WPS requests in a visual, form based environment.

We will then go though the current set of built-in operators, ranging from topologic analysis, simple statistical operations, raster to vector conversion, contour extraction, raster algebra, vector and raster “clip and ship”, georeferencing and various others.

The presentation will then move to the unique GeoServer integration features, showing how processing can seamlessly integrate directly in the GeoServer data sources and complement existing services, as well as integrate directly in the map rendering chain to provide on the fly data transformations such as on the fly contouring or point clustering.

The presentation will end with real world examples of applications using GeoServer WPS to do statistical analysis on crops, change visualization and web based image geo-referencing based on ground control points.