Measure the distance of the line turf.lineDistance() With an inner circle in place, I then calculate the centroids of each circle using turf.centroid()Ĭalculate a line between these two points using turf.line() Using a ‘while’ function rerun the random lat/lng calculation until turf.booleanWithin() returns ‘true’ Generate a random lat/lng and tangent circle that intersects your initial circle and is also contained within using turf.booleanWithin() Generate initial circle using turf.circle()Ĭalculate the extent of the map view using map.getBounds()Ĭalculate the difference between the circle and bounds using turf.difference()
#USING TURF ANALYSIS XLSTAT CODE#
I’ve provided the code for download at the bottom, but here are the steps I took to accomplish this: Using Turf.js and Mapbox I wanted to recreate this functionality, which ended up taking a couple nights to figure out.
You can drag the initial Battle Circle™ to your local area and click ‘Set Circle’ to start ( sorry Augusta, Australia). From seeing the majority of these films I know I would never actually want to be placed in one, but to bring the concept into your local area is a fun thought experiment.īelow I’ve created a real-word simulation of a battle royale, where there are 10 stages of randomly generated internal tangent circles. The Japanese film Battle Royale (2000) popularized the term and has had many subsequent spin-offs (ex. While the concept of a Battle Royale has been around for generations, the modern connotation relates to a “battle to the finish” among a select group of contestants/participants. The freemium offerings of Fortnite Battle Royale (2017) and Call of Duty: Blackout (2020) mean these games also come at no upfront cost to players. It’s hard to avoid the lure of Battle Royale style games if you’re the owner of an Xbox or PlayStation in 2020.
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