@roblav96 at a low level, i'd do it by using https://github.com/mapbox/spherical, with each angle differing by 360/16 degrees, and then using all of the points as coordinates in the coordinate array of a geojson polygon
turf only takes GeoJSON arguments, not vector tiles, so I need some way to convert the data in that layer to GeoJSON just to use it with turf.
when I attempt to create a buffer from this polygon, it seems to miss the last point off : https://gist.github.com/richorama/0dd4a2ce32d357279623
so my buffer looks like this ^
with 3 coords, rather than 4
so you should duplicates the first coordinate to get correct results
thanks
hi. I created a Turf - node for node-red. It's my first project in this field and I just wanted to be sure if thats permitted.
Hi, I'm trying to use turf.js with my application, but I'm getting an error when the code is evaluated:
The referenced lines are lines 5625-5628 in the un-minified turf.js I got off github for v2.0.0
Uncaught EvalError: Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'self' 'unsafe-inline'The referenced lines are lines 5625-5628 in the un-minified turf.js I got off github for v2.0.0
for reference / context, this is the function:
function orientation(n) {
var pos = []
var neg = []
var m = matrix(n)
var args = []
for(var i=0; i<n; ++i) {
if((i&1)===0) {
pos.push.apply(pos, determinant(cofactor(m, i)))
} else {
neg.push.apply(neg, determinant(cofactor(m, i)))
}
args.push("m" + i)
}
var posExpr = generateSum(pos)
var negExpr = generateSum(neg)
var funcName = "orientation" + n + "Exact"
var code = ["function ", funcName, "(", args.join(), "){var p=", posExpr, ",n=", negExpr, ",d=sub(p,n);\
return d[d.length-1];};return ", funcName].join("")
var proc = new Function("sum", "prod", "scale", "sub", code)
return proc(robustSum, twoProduct, robustScale, robustSubtract)
}
is there any way around this without modifying the CSP?
I created a PR some time ago (Turfjs/turf-isobands#7) on the turf-isobands moduel/package, but I haven;t received any feedback yet
is anybody going to resume the isobands module? in my understanding the module was set aside for it was not working properly
Hi! I made a small helper to filter polygon rings. When you union simplified polygons you can filter out slivers from your resulting polygon. See https://github.com/kuuup/turf-filter-rings
I wanted to ask if there is some simple way to construct a "sector"-like polygon given point, radius, bearing and angle. Right now I construct a circle (of given radius) and subtract from it two rectangles so that the sector is formed. Maybe there's an easier way like some built-in functionality, that I've overlooked?
Hello, i have a problem with buffer zone,
When she touches herself, she makes only one area instead of making a "hole" in the middle. Do you have a solution for it to overlap but it does not merge?
@ArtCodeKarine I couldn't reproduce this problem with a simple donut.
Maybe you should open a ticket on github
