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<div class="moz-cite-prefix">I'm really looking forward to it
Fabien!<br>
<br>
Plan for 30 minutes :)<br>
<br>
On 2016-04-09 5:19 PM, Fabien Ancelin wrote:<br>
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cite="mid:CAPD=wVVNbmnddGvuthpjmQBLf_Vx688qYPxZZkL+Kv9RMi9u4w@mail.gmail.com"
type="cite">
<div dir="ltr">Hi folks,
<div><br>
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<div><br>
</div>
<div>For April 21st, I will give a quick talk on Voronoi Cell
generation using line and point input using line and point
inputs. </div>
<div><br>
</div>
<div>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 (<a
moz-do-not-send="true"
href="http://www.boost.org/doc/libs/1_54_0/libs/polygon/doc/voronoi_main.htm"><a class="moz-txt-link-freetext" href="http://www.boost.org/doc/libs/1_54_0/libs/polygon/doc/voronoi_main.htm">http://www.boost.org/doc/libs/1_54_0/libs/polygon/doc/voronoi_main.htm</a></a>).</div>
<div><br>
</div>
<div>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. </div>
<div><br>
</div>
<div>Those two API I will present are Open Source, and available
on github:</div>
<div>
<ul>
<li>SharpBoostVoronoi, developped by me is the C# wrapper: <a
moz-do-not-send="true"
href="https://github.com/fabanc/SharpBoostVoronoi"><a class="moz-txt-link-freetext" href="https://github.com/fabanc/SharpBoostVoronoi">https://github.com/fabanc/SharpBoostVoronoi</a></a></li>
<li>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 <a
moz-do-not-send="true"
href="https://github.com/Voxel8/pyvoronoi"><a class="moz-txt-link-freetext" href="https://github.com/Voxel8/pyvoronoi">https://github.com/Voxel8/pyvoronoi</a></a></li>
</ul>
<div>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.</div>
</div>
</div>
<br>
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