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FOSS4G North America Conference 2013 Preliminary Program

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When NASA World Wind meets MapServer<br />

Daniel Morissette, MapGears and Jeff McKennna, Gateway Geomatics<br />

A year ago the NASA World Wind team made the decision to replace their server backend with<br />

MapServer, and some members of the NASA World Wind and MapServer teams have worked<br />

together on this migration since then. In this talk we will discuss the rationale behind this<br />

decision, go over the highlights and challenges of this migration project, and the added value for<br />

existing World Wind users such as OpenStreetMap support for instance.<br />

We will also provide pointers to resources and hints for those who want to deploy their own open<br />

source 3D globe infrastructure based on World Wind and MapServer.<br />

ProjFinder Yo!<br />

Aaron Racicot, Z­Pulley Inc. and Greg Corradini, Chop Shop Geo<br />

Have you ever received a dataset and not known what projection the geodata is in? Download a<br />

CSV full of “x” and “y” and have no idea how to determine if they are UTM, State Plane, or some<br />

other obscure projection? We are here to help!<br />

CUGOS (Cascadia Users of Geospatial Open Source), a very active OSGeo regional chapter,<br />

has been hacking on a project to help solve this problem. We have been sponsoring hack<br />

sessions and using this project as a learning tool for CUGOS members to engage in Open<br />

Source Geospatial software development.<br />

Give us a sample of your unknown data (an x and y from your dataset) and a hint as to where<br />

you think it is (i.e. you know the data is related to “Seattle WA”) and we will give you back a list of<br />

probable projections. There are interesting cases at all scales, with capabilities to get you<br />

"close" at large scales, and distinguish datum differences at very small scales. We use some<br />

simple techniques leveraging the EPSG database, PostGIS, and a simple web map interface to<br />

make the user experience as easy as possible.<br />

All of the project source code is available on Github and we are using a great list of Open Source<br />

projects to make ProjFinder work including Flask, PostGIS and Openlayers. We are hosting the<br />

client app on git­pages, and the API on a small Linode, once again showing that big things can<br />

be accomplished with scarce resources.<br />

We will be introducing the concept, showing ProjFinder in action, and talking about using<br />

projects like this to engage your local community around Open Source Geospatial. Hopefully<br />

you will leave inspired to come hack ProjFinder with us and engage your local community in<br />

developing similar learning opportunities.

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