Map change: remove the buffer overlap

[WABA-Comms]

We're looking to prevent buffers from overlapping when they cross jurisdictional lines to avoid the intestinal look.

Possible with modifying svg directly: Pull all paths into a single instead of multiple nodes. A little tedious, might be slow.

[mdelcambre]

A simple (from a coding/technology side) solution is to limit the buffers to only be within the county borders. This would automatically prevent any overlap from showing.
However, it may look a bit strange when the neighbor county is not loaded, but perhaps that is acceptable. Given that we have the county lines, it should be pretty to easy for a user to understand what is going on. Maybe argue it is a feature as it only gives a county credit for their own coverage 😉 .

[alongthepike]

I like @mdelcambre's recommendation. This could be as simple as calling turf.intersect passing it the buffer polygon and the county border polygon before saving the buffer.

And yes, this is definitely of use when we are calculating % of the jurisdiction's land area that is within X distance of bike infrastructure. Right now Arlington's "% of jurisdiction within 1 mile of bike infrastructure" is calculating as over 100% because the buffer polygon extends beyond the actual jurisdiction.

[alongthepike]

Proof of concept looks very promising.

[WABA-Comms]

woah, DC boundary extends west of the potomac? #Themoreyouknow

[image: Inline image 1]

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On Fri, Sep 2, 2016 at 3:28 PM, Chris Slatt notifications@github.com
wrote:

[image: proofofconcept]
https://cloud.githubusercontent.com/assets/13531063/18215953/ebd028a0-7121-11e6-916f-93d80657f7ac.png

Proof of concept looks very promising.

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[alongthepike]

Yep. DC owns ALL of the water and everything in it - TR Island is DC, Memorial Circle is DC.

[alulsh]

This was done in #131! 🎉