@jbroll/nmea-simple
Version:
NMEA 0183 sentence parser and encoder
44 lines (43 loc) • 1.58 kB
JavaScript
;
/*
* === HDM - Heading - magnetic ===
*
* ------------------------------------------------------------------------------
* 1 2 3
* | | |
* $--HDM,x.x,M*hh<CR><LF>
* ------------------------------------------------------------------------------
*
* Field Number:
* 1. Heading degrees, magnetic
* 2. M = Magnetic
* 3. Checksum
*/
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
var helpers_1 = require("../helpers");
var PacketStub_1 = require("./PacketStub");
exports.sentenceId = "HDM";
exports.sentenceName = "Heading - magnetic";
function decodeSentence(stub, fields) {
return __assign(__assign({}, PacketStub_1.initStubFields(stub, exports.sentenceId, exports.sentenceName)), { heading: helpers_1.parseFloatSafe(fields[1]) });
}
exports.decodeSentence = decodeSentence;
function encodePacket(packet, talker) {
var result = ["$" + talker + exports.sentenceId];
result.push(helpers_1.encodeFixed(packet.heading, 1));
result.push("M");
var resultWithoutChecksum = result.join(",");
return resultWithoutChecksum + helpers_1.createNmeaChecksumFooter(resultWithoutChecksum);
}
exports.encodePacket = encodePacket;