<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">It would make logical sense to preprocess all the data but then you end up with two sources. The Open Data original and the preprocessed data source.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">From a logical point of view it would make sense to use the Microsoft data to fill in the gaps. So add it into the preprocessed data.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Then you get to reality. To make it work across Canada you need to get agreement and that I think will be the most difficult part.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Step one I think is ask Pierre nicely to review a sample and see if it meets his "quality" expectations.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Step two would be check with Tim in Montreal for his thoughts.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">If they are both in agreement that it is acceptable then we see if we can get some sort of acceptance across the country possibly blacking out certain areas.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">If we can we'll need to go back to the import mailing list and say we wish to combine two sources and amend the plan accordingly.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Otherwise it is up to whoever sorts out an import plan / import for a particular area to consider its use.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Cheerio John</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 19 Mar 2019 at 12:59, Begin Daniel <<a href="mailto:jfd553@hotmail.com">jfd553@hotmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<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>
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