[Imports] Ottawa, Canada Tree Import

[Kyle Nuttall]

I've updated the table to include leaf type and cycle

https://wiki.openstreetmap.org/wiki/Canada:Ontario:Ottawa/Import/Trees#Common_and_Latin_names


As per the dataset on the City of Ottawa website

"The intent of this database is to provide an inventory of City-owned trees located on road allowance across the City of Ottawa."

So it's not really a matter of opinion, they are property of the City of Ottawa. In our city, we have 3 levels of government operating in various areas. The federal government, through the National Capital Commission, maintains and operates in areas such as the parkways. The provincial government operates Highway 417 and Highway 416. And the municipal government takes care of basically everywhere else. That's why I feel this distinction was necessary.
All that said, the next line states
"Some park and privately owned trees collected by Forestry staff have been included in this database for future reference, and therefore this database should not be used for ownership verification."
So we'll just be scraping the 'operator' tag because we cannot verify which trees are privately owned.

We're also working on verifying no interference with this dataset and current OSM data. Based on how that goes, we'll have a better idea for planning to correct the errors.

The biggest issue to resolve is tagging the thickness of the trees. The data was provided as the diameter measured in centimeters. I understand that the circumference tag was made for ease of use, but anyone that is collecting data specifically for trees would know the concept of Diameter at Breast Height. It's my belief that the more the data is manipulated, the more errors that are introduced. If converting a DBH of 9cm to circumference in meters, you get 0.2827433388230814...m. How many digits is sufficient for accuracy? I suppose 0.001m would as much as needed.

Without manipulating the data, may I suggest a tag such as 'dbh:cm`/'dbh_cm' or 'diameter:cm'/'diamter_cm'
If not, we could simply move the decimal to get meters and use either 'diameter' or 'diameter_trunk' (in the same style as 'diameter_crown')
Or if you're hard set on using the circumference tag, I'd like some feedback on converting it.
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