@jbroll/nmea-simple
Version:
NMEA 0183 sentence parser and encoder
39 lines (38 loc) • 1.71 kB
JavaScript
;
/*
* === HDG - Heading - deviation and variation ===
*
* ------------------------------------------------------------------------------
* 1 2 3 4 5 6
* | | | | | |
* $--HDG,x.x,x.x,a,x.x,a*hh<CR><LF>
* ------------------------------------------------------------------------------
*
* Field Number:
* 1. Magnetic Sensor heading in degrees
* 2. Magnetic Deviation, degrees
* 3. Magnetic Deviation direction, E = Easterly, W = Westerly
* 4. Magnetic Variation, degrees
* 5. Magnetic Variation direction, E = Easterly, W = Westerly
* 6. Checksum
*/
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
var helpers_1 = require("../helpers");
var PacketStub_1 = require("./PacketStub");
exports.sentenceId = "HDG";
exports.sentenceName = "Heading - deviation and variation";
function decodeSentence(stub, fields) {
return __assign(__assign({}, PacketStub_1.initStubFields(stub, exports.sentenceId, exports.sentenceName)), { heading: helpers_1.parseFloatSafe(fields[1]), deviation: helpers_1.parseFloatSafe(fields[2]), deviationDirection: fields[3] === "E" ? "E" : fields[3] === "W" ? "W" : "", variation: helpers_1.parseFloatSafe(fields[4]), variationDirection: fields[5] === "E" ? "E" : fields[5] === "W" ? "W" : "" });
}
exports.decodeSentence = decodeSentence;