[Ottawa_users] Presentation on Apr 21

[Jérôme St-Louis]

I'm really looking forward to it Fabien!

Plan for 30 minutes :)

On 2016-04-09 5:19 PM, Fabien Ancelin wrote:
> Hi folks,
>
>
> For April 21st, I will give a quick talk on Voronoi Cell generation 
> using line and point input using line and point inputs.
>
> Most GIS software allow user to generate Voronoi cells from points. It 
> becomes a challenge to generate Voronoi cells with line and points, 
> making  certain problem difficult to solve. In order to support some 
> work I have done for Esri Canada, I have created / contributed and 
> used two APIs  in Python and .NET that can be used to solve those 
> problems. Those API are mainly enhanced wrappers around the C++ Boost 
> Voronoi API 
> (http://www.boost.org/doc/libs/1_54_0/libs/polygon/doc/voronoi_main.htm).
>
> On April 21st, I want introduce you to the kind of problems those 
> wrapper can solve from a GIS perspective, and I hope to trigger a 
> reaction from you there. I will present how to prepare your GIS data 
> to be usable by the those API, and how to use the output of the boost 
> library to find the answers to your GIS problems. Finally, I will give 
> you a quick introduction on how to use those wrappers in C# and python 
> and gave you a demonstration.
>
> Those two API I will present are Open Source, and available on github:
>
>   * SharpBoostVoronoi, developped by me is the C# wrapper:
>     https://github.com/fabanc/SharpBoostVoronoi
>   * PyVoronoi is developed by Voxel8. Originally designed to returns
>     Voronoi segments only for 3D printing, I have contributed to that
>     library so that it returns Voronoi cells object and support point
>     and line input. The latter change is actually a fresh update I
>     just pushed to the master branch. It's approval is still pending
>     but the code is available online as well. Hopefully the code get
>     merged soon enough. The url of the master project is
>     https://github.com/Voxel8/pyvoronoi
>
> The presentation will be between 15 and 30 minutes based on people's 
> interest. Let Jerome and Javed know who will be planning to attend 
> early. This way, we can book the big room if that's required.
>
>
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