node-red-contrib-tak-registration
Version:
A Node-RED node to register to TAK and to help wrap files as datapackages to send to TAK
66 lines (65 loc) • 2.27 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var helpers_1 = require("@turf/helpers");
var invariant_1 = require("@turf/invariant");
var spline_1 = __importDefault(require("./lib/spline"));
/**
* Takes a {@link LineString|line} and returns a curved version
* by applying a [Bezier spline](http://en.wikipedia.org/wiki/B%C3%A9zier_spline)
* algorithm.
*
* The bezier spline implementation is by [Leszek Rybicki](http://leszek.rybicki.cc/).
*
* @name bezierSpline
* @param {Feature<LineString>} line input LineString
* @param {Object} [options={}] Optional parameters
* @param {Object} [options.properties={}] Translate properties to output
* @param {number} [options.resolution=10000] time in milliseconds between points
* @param {number} [options.sharpness=0.85] a measure of how curvy the path should be between splines
* @returns {Feature<LineString>} curved line
* @example
* var line = turf.lineString([
* [-76.091308, 18.427501],
* [-76.695556, 18.729501],
* [-76.552734, 19.40443],
* [-74.61914, 19.134789],
* [-73.652343, 20.07657],
* [-73.157958, 20.210656]
* ]);
*
* var curved = turf.bezierSpline(line);
*
* //addToMap
* var addToMap = [line, curved]
* curved.properties = { stroke: '#0F0' };
*/
function bezier(line, options) {
if (options === void 0) { options = {}; }
// Optional params
var resolution = options.resolution || 10000;
var sharpness = options.sharpness || 0.85;
var coords = [];
var points = invariant_1.getGeom(line).coordinates.map(function (pt) {
return { x: pt[0], y: pt[1] };
});
var spline = new spline_1.default({
duration: resolution,
points: points,
sharpness: sharpness,
});
var pushCoord = function (time) {
var pos = spline.pos(time);
if (Math.floor(time / 100) % 2 === 0) {
coords.push([pos.x, pos.y]);
}
};
for (var i = 0; i < spline.duration; i += 10) {
pushCoord(i);
}
pushCoord(spline.duration);
return helpers_1.lineString(coords, options.properties);
}
exports.default = bezier;