<div dir="auto">Glad you diligently check things before you open your mouth. Tasks have been taken down since the initial email on this topic(1st email).</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu., Mar. 21, 2019, 2:30 p.m. Nate Wessel, <<a href="mailto:bike756@gmail.com">bike756@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<p>I've specifically and repeatedly requested that the tasking
manager be taken down while this project is reworked... though
that doesn't pertain directly to the email I just sent. <br>
</p>
<div class="m_-2082157488488010486moz-signature">Nate Wessel<br>
<span style="font-size:10px;color:#777">Jack of all trades, Master
of Geography, PhD candidate in Urban Planning<br>
<a href="http://natewessel.com" target="_blank" rel="noreferrer">NateWessel.com</a></span>
<br>
<br>
</div>
<div class="m_-2082157488488010486moz-cite-prefix">On 3/21/19 2:02 PM, John Whelan wrote:<br>
</div>
<blockquote type="cite">
<div style="font-size:12pt;font-family:Verdana">Nate are you
requesting something specific on the Canadian task manager for
Toronto at this time or would you prefer to look through
Daniel's work first? <br>
<br>
Thanks<br>
<br>
Cheerio John<br>
<br>
<span>Nate Wessel wrote on 2019-03-21 1:49 PM:</span><br>
<blockquote type="cite">
<p>Daniel, <br>
</p>
<p>This is exciting news! After much talk on this list, it
seems we may have some actual progress toward fixing the
various data quality issues. Would you mind sharing some of
your code, or a description of your workflow here or on
GitHub or the like so we can take a look? <br>
</p>
<p>One thing you didn't mention which I think will be really
critical, especially in central Toronto: We need to remove
buildings from the import dataset that may already be mapped
in OSM. That is, buildings that overlap with existing
buildings. For this import to make any sense in Central
Toronto, we need conflation to move slowly, and in smaller,
more manageable steps. Buildings that are already mapped
should be checked manually at a later time in batches that a
skilled human can manage in less than an hour. The tasking
manager as it's currently set up would have all of downtown
conflated by hand in one task by a single mapper - a recipe
for disaster I'm sure, given how detailed the map is in that
area. <br>
</p>
<p>Cheers,<br>
</p>
<div class="m_-2082157488488010486moz-signature">Nate Wessel<br>
<span style="font-size:10px;color:#777">Jack of all trades,
Master of Geography, PhD candidate in Urban Planning<br>
<a href="http://natewessel.com" target="_blank" rel="noreferrer">NateWessel.com</a></span>
<br>
<br>
</div>
<div class="m_-2082157488488010486moz-cite-prefix">On 3/19/19 12:58 PM, Begin Daniel
wrote:<br>
</div>
<blockquote type="cite">
<div class="m_-2082157488488010486WordSection1">
<p class="MsoNormal">Hi all,<u></u><u></u></p>
<p class="MsoNormal">As mentioned a few weeks ago, I have
almost completed the development of a clean-up tool for
the data to be imported.<u></u><u></u></p>
<p class="MsoNormal">So far, it removes nonessential
vertices, orthogonalizes building corners when
reasonable and ensures walls’ alignment within given
tolerances. Building footprints that can’t be processed
completely are flagged accordingly, so they could be
examined thoroughly at import time.<u></u><u></u></p>
<p class="MsoNormal">Eventually, It should be easy to
remove overlapping buildings (potentially generated from
a 3d mapping), but I doubt that splitting terrace into
individual buildings can be done automatically. <u></u><u></u></p>
<p class="MsoNormal">The tool uses some parameters that
need to be adjusted. I would like that those who are
interested in this aspect of the import send me
benchmark data that could be problematic. I will process
them to adjust parameters and/or the tool, and I will
send back the results to the sender for a thorough
examination.<u></u><u></u></p>
<p class="MsoNormal">I should soon document the process in
the “Canada Building Import” wiki page (in a
pre-processing section).<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thought? Comments?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Daniel<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
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