122 lines
3.7 KiB
JavaScript
122 lines
3.7 KiB
JavaScript
import { Helpers } from 'nmea';
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const getPosition = (nmea) => {
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if (!nmea) return;
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const { RMC } = nmea;
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const position = { lng: Helpers.parseLongitude(RMC.lon, RMC.lonPole), lat: Helpers.parseLatitude(RMC.lat, RMC.latPole) };
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return position;
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};
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const getBaseInfo = (nmea) => {
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if (!nmea) return;
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const { RMC, GGA } = nmea;
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try {
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const longitude = (!RMC.lon || !RMC.lonPole) ? '' : Helpers.parseLongitude(RMC.lon, RMC.lonPole);
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const latitude = (!RMC.lat || !RMC.latPole) ? '' : Helpers.parseLatitude(RMC.lat, RMC.latPole);
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const altitude = GGA.alt + GGA.altUnit;
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const date = (!RMC.date) ? '' : '20' + RMC.date.slice(4, 6) + '-' + RMC.date.slice(2, 4) + '-' + RMC.date.slice(0, 2);
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let UTCTime = '', BJTime = '';
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if (RMC.timestamp) {
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const hour = parseInt(RMC.timestamp.slice(0, 2));
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const bjHour = (hour + 8) % 24;
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UTCTime = hour.toString().padStart(2, '0') + ':' + RMC.timestamp.slice(2, 4) + ':' + RMC.timestamp.slice(4, 6);
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BJTime = bjHour.toString().padStart(2, '0') + ':' + RMC.timestamp.slice(2, 4) + ':' + RMC.timestamp.slice(4, 6);
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}
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const baseInfo = { longitude, latitude, altitude, date, UTCTime, BJTime };
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return baseInfo;
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} catch (error) {
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console.error(error);
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}
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};
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const getSNROption = (nmea) => {
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if (!nmea) return;
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const { GSV, GSA } = nmea;
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const GSVArr = GSV.filter((gsv) => gsv.talker_id === 'BD' || gsv.talker_id === 'GB');
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const GSAArr = GSA.filter((gsa) => gsa.talker_id === 'BD' || gsa.talker_id === 'GB');
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try {
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let yAxis_data = [], series_data = [];
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const in_positioning_id = get_in_positioning_id(GSAArr);
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GSVArr.forEach(({ satellites }) => {
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let compatibleVersion = false;
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if (satellites[satellites.length-1].elevationDeg == null && satellites[satellites.length-1].azimuthTrue == null && satellites[satellites.length-1].SNRdB == null) {
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compatibleVersion = true;
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let type = satellites.pop();
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if (type.id == 0 || type.id == 1) {
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compatibleVersion = false;
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}
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}
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if (!compatibleVersion) {
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satellites.forEach(({ id, SNRdB }) => {
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yAxis_data.push(id);
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if (in_positioning_id.indexOf(parseInt(id)) < 0) {
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series_data.push([SNRdB, id, false]);
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} else {
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series_data.push([SNRdB, id, true]);
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}
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});
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}
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});
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const SNROption = {
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yAxis: {
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data: yAxis_data
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},
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series: [{
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data: series_data
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}]
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};
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return SNROption;
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} catch (error) {
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console.error(error);
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}
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};
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const getPlanisphereOption = (nmea) => {
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if (!nmea) return;
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const { GSV, GSA } = nmea;
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const GSVArr = GSV.filter((gsv) => gsv.talker_id === 'BD' || gsv.talker_id === 'GB');
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const GSAArr = GSA.filter((gsa) => gsa.talker_id === 'BD' || gsa.talker_id === 'GB');
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try {
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let data = [];
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const in_positioning_id = get_in_positioning_id(GSAArr);
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GSVArr.forEach(({ satellites }) => {
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satellites.forEach(({ id, elevationDeg, azimuthTrue }) => {
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if (in_positioning_id.indexOf(parseInt(id)) < 0) {
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data.push([parseInt(elevationDeg), azimuthTrue, id, false]);
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} else {
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data.push([parseInt(elevationDeg), azimuthTrue, id, true]);
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}
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});
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});
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const planisphereOption = {
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series: [{ data }]
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};
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return planisphereOption;
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} catch (error) {
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console.error(error);
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}
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};
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const get_in_positioning_id = (GSAArr) => {
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let in_positioning_id = [];
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GSAArr.forEach(({ satellites }) => {
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in_positioning_id.push(...satellites);
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});
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return in_positioning_id;
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};
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export { getPosition, getBaseInfo, getSNROption, getPlanisphereOption }; |