mirror of https://github.com/espruino/BangleApps
Update app.js
nujw
GitHub
parent
a7b5f530c3
commit
0bd6399d83
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@ -2,9 +2,8 @@
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Speed and Altitude [speedalt2]
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Mike Bennett mike[at]kereru.com
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1.10 : add inverted colours
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1.14 : Add VMG screen
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*/
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var v = '1.16';
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var v = '1.10';
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/*kalmanjs, Wouter Bulten, MIT, https://github.com/wouterbulten/kalmanjs */
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var KalmanFilter = (function () {
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@ -188,19 +187,13 @@ var lf = {fix:0,satellites:0};
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var showMax = 0; // 1 = display the max values. 0 = display the cur fix
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var pwrSav = 1; // 1 = default power saving with watch screen off and GPS to PMOO mode. 0 = screen kept on.
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var canDraw = 1;
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var time = ''; // Last time string displayed. Re displayed in background colour to remove before drawing new time.
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var tmrLP; // Timer for delay in switching to low power after screen turns off
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var maxSpd = 0;
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var maxAlt = 0;
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var maxN = 0; // counter. Only start comparing for max after a certain number of fixes to allow kalman filter to have smoohed the data.
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// Previous values for calculating VMG.
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var vmgD1 = -1; // Dist start
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var vmgD2 = -1; // Dist end
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var vmgT1 = -1; // Time start
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var vmgT2 = -1; // Time end
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var vmgSpd = 0;
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var emulator = (process.env.BOARD=="EMSCRIPTEN")?1:0; // 1 = running in emulator. Supplies test values;
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var wp = {}; // Waypoint to use for distance from cur position.
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@ -208,9 +201,6 @@ var wp = {}; // Waypoint to use for distance from cur position.
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function nxtWp(){
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cfg.wp++;
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loadWp();
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vmgD1 = -1; // Reset VMG calcs
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vmgD2 = -1;
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vmgT1 = -1;
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}
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function loadWp() {
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@ -229,8 +219,12 @@ function distance(a,b){
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var x = radians(a.lon-b.lon) * Math.cos(radians((a.lat+b.lat)/2));
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var y = radians(b.lat-a.lat);
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// Distance in metres
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// Distance in selected units
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var d = Math.sqrt(x*x + y*y) * 6371000;
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d = (d/parseFloat(cfg.dist)).toFixed(2);
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if ( d >= 100 ) d = parseFloat(d).toFixed(1);
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if ( d >= 1000 ) d = parseFloat(d).toFixed(0);
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return d;
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}
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@ -334,8 +328,8 @@ function drawClock() {
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function drawWP(wp) {
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buf.setColor(3);
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buf.setFontAlign(0,1); //left, bottom
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buf.setFontVector(40);
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buf.drawString(wp,120,132);
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buf.setFontVector(48);
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buf.drawString(wp,120,140);
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}
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function drawSats(sats) {
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@ -395,10 +389,17 @@ if ( emulator ) {
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}
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// Speed
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sp = parseFloat(lf.speed)/parseFloat(cfg.spd); // Calculate for selected units
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if ( cfg.spd == 0 ) {
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m = require("locale").speed(lf.speed).match(/([0-9,\.]+)(.*)/); // regex splits numbers from units
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sp = parseFloat(m[1]);
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cfg.spd_unit = m[2];
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}
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else sp = parseFloat(lf.speed)/parseFloat(cfg.spd); // Calculate for selected units
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if ( sp < 10 ) sp = sp.toFixed(1);
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else sp = Math.round(sp);
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if (isNaN(sp)) sp = '---';
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if (parseFloat(sp) > parseFloat(maxSpd) && maxN > 15 ) maxSpd = sp;
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// Altitude
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@ -409,12 +410,7 @@ if ( emulator ) {
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// Distance to waypoint
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di = distance(lf,wp);
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vmgD2 = di;
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vmgT2 = Math.round(lf.time.getTime()/1000);
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di = (di/parseFloat(cfg.dist)).toFixed(2);
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if ( di >= 100 ) di = parseFloat(di).toFixed(1);
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if ( di >= 1000 ) di = parseFloat(di).toFixed(0);
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if (isNaN(di)) di = '------';
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if (isNaN(di)) di = '--------';
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// Age of last fix (secs)
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age = Math.max(0,Math.round(getTime())-(lf.time.getTime()/1000));
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@ -494,18 +490,6 @@ if ( emulator ) {
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}
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if ( cfg.modeA == 3 ) {
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// VMG
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drawScrn({
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val:vmgSpd,
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unit:cfg.spd_unit,
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sats:sats,
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age:age,
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max:'VMG',
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wp:wpName
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});
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}
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if ( cfg.modeA == 4 ) {
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// Position
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drawPosn({
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sats:sats,
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@ -517,48 +501,23 @@ if ( emulator ) {
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});
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}
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if ( cfg.modeA == 5 ) {
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if ( cfg.modeA == 4 ) {
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// Large clock
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drawClock();
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}
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}
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function updateVMG() {
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if (!canDraw) return;
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vmgSpd = '---';
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if ( ! lf.fix ) return;
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if ( vmgT1 == vmgT2 ) return; // No new fix
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//vmgD1 = 13640;
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//vmgT1 = (getTime()/1000) - 10;
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if ( vmgD1 != -1 && ! isNaN(vmgD1)) {
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// Have two WP distances and a time. Calc speed
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vmgSpd = ((vmgD1-vmgD2)/1000)/((vmgT2-vmgT1)/3600); // k/h
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vmgSpd = vmgSpd/parseFloat(cfg.spd); // Calculate for selected units
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}
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vmgD1 = vmgD2;
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vmgT1 = vmgT2; // secs
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if ( Math.abs(vmgSpd) < 10 ) vmgSpd = vmgSpd.toFixed(1);
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else vmgSpd = Math.round(vmgSpd);
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if (isNaN(vmgSpd)) vmgSpd = '---';
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}
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function prevScrn() {
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cfg.modeA = cfg.modeA-1;
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if ( cfg.modeA < 0 ) cfg.modeA = 5;
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if ( cfg.modeA < 0 ) cfg.modeA = 4;
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savSettings();
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onGPS(lf);
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}
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function nextScrn() {
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cfg.modeA = cfg.modeA+1;
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if ( cfg.modeA > 5 ) cfg.modeA = 0;
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if ( cfg.modeA > 4 ) cfg.modeA = 0;
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savSettings();
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onGPS(lf);
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}
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@ -570,14 +529,14 @@ function nextFunc(dur) {
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if ( dur < 2 ) showMax = !showMax; // Short press toggle fix/max display
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else { maxSpd = 0; maxAlt = 0; } // Long press resets max values.
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}
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else if ( cfg.modeA == 2 || cfg.modeA == 3) nxtWp(); // Dist or VMG mode - Select next waypoint
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else if ( cfg.modeA == 2) nxtWp(); // Dist mode - Select next waypoint
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onGPS(lf);
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}
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function updateClock() {
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if (!canDraw) return;
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if ( cfg.modeA != 5 ) return;
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if ( cfg.modeA != 4 ) return;
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drawClock();
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if ( emulator ) {maxSpd++;maxAlt++;}
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}
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@ -687,15 +646,15 @@ console.log('MDL');
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// Read settings.
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let cfg = require('Storage').readJSON('speedalt2.json',1)||{};
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cfg.spd = cfg.spd||1; // Multiplier for speed unit conversions. 0 = use the locale values for speed
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cfg.spd_unit = cfg.spd_unit||'kph'; // Displayed speed unit
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cfg.spd = cfg.spd||0; // Multiplier for speed unit conversions. 0 = use the locale values for speed
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cfg.spd_unit = cfg.spd_unit||''; // Displayed speed unit
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cfg.alt = cfg.alt||0.3048;// Multiplier for altitude unit conversions.
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cfg.alt_unit = cfg.alt_unit||'feet'; // Displayed altitude units
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cfg.dist = cfg.dist||1000;// Multiplier for distnce unit conversions.
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cfg.dist_unit = cfg.dist_unit||'km'; // Displayed altitude units
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cfg.colour = cfg.colour||0; // Colour scheme.
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cfg.wp = cfg.wp||0; // Last selected waypoint for dist
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cfg.modeA = cfg.modeA||0; // 0=Speed 1=Alt 2=Dist 3 = vmg 4=Position 5=Clock
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cfg.modeA = cfg.modeA||0; // 0=Speed 1=Alt 2=Dist 3=Position 4=Clock
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cfg.primSpd = cfg.primSpd||0; // 1 = Spd in primary, 0 = Spd in secondary
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cfg.spdFilt = cfg.spdFilt==undefined?true:cfg.spdFilt;
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@ -757,4 +716,3 @@ Bangle.on('GPS', onGPS);
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setButtons();
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setInterval(updateClock, 10000);
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setInterval(updateVMG, 10000);
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