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
57 lines (56 loc) • 2.12 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var bearing_1 = __importDefault(require("@turf/bearing"));
var destination_1 = __importDefault(require("@turf/destination"));
var distance_1 = __importDefault(require("@turf/distance"));
var helpers_1 = require("@turf/helpers");
var invariant_1 = require("@turf/invariant");
/**
* Takes a {@link LineString} and returns a {@link Point} at a specified distance along the line.
*
* @name along
* @param {Feature<LineString>} line input line
* @param {number} distance distance along the line
* @param {Object} [options] Optional parameters
* @param {string} [options.units="kilometers"] can be degrees, radians, miles, or kilometers
* @returns {Feature<Point>} Point `distance` `units` along the line
* @example
* var line = turf.lineString([[-83, 30], [-84, 36], [-78, 41]]);
* var options = {units: 'miles'};
*
* var along = turf.along(line, 200, options);
*
* //addToMap
* var addToMap = [along, line]
*/
function along(line, distance, options) {
if (options === void 0) { options = {}; }
// Get Coords
var geom = invariant_1.getGeom(line);
var coords = geom.coordinates;
var travelled = 0;
for (var i = 0; i < coords.length; i++) {
if (distance >= travelled && i === coords.length - 1) {
break;
}
else if (travelled >= distance) {
var overshot = distance - travelled;
if (!overshot) {
return helpers_1.point(coords[i]);
}
else {
var direction = bearing_1.default(coords[i], coords[i - 1]) - 180;
var interpolated = destination_1.default(coords[i], overshot, direction, options);
return interpolated;
}
}
else {
travelled += distance_1.default(coords[i], coords[i + 1], options);
}
}
return helpers_1.point(coords[coords.length - 1]);
}
exports.default = along;