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fix distance over-calculation, add averaging to current speed

pull/1379/head
Gordon Williams 2022-02-01 14:13:01 +00:00
parent 7a11f410b5
commit 55b7650a0d
1 changed files with 10 additions and 7 deletions
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15
modules/exstats.js
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@ -55,6 +55,7 @@ var state = {
lastGPS:{}, thisGPS:{}, // This & previous GPS readings
// distance : 0, ///< distance in meters
// avrSpeed : 0, ///< speed over whole run in m/sec
// curSpeed : 0, ///< current (but averaged speed) in m/sec
startSteps : Bangle.getStepCount(), ///< number of steps when we started
lastSteps : Bangle.getStepCount(), // last time 'step' was called
stepHistory : new Uint8Array(60), // steps each second for the last minute (0 = current minute)
@ -102,14 +103,15 @@ Bangle.on("GPS", function(fix) {
if (!fix.fix) return; // only process actual fixes
if (!state.active) return;
state.lastGPS = state.thisGPS;
state.thisGPS = fix;
if (state.lastGPS.fix)
state.distance += calcDistance(state.lastGPS, fix);
if (stats["dist"]) stats["dist"].emit("changed",stats["dist"]);
var duration = Date.now() - state.startTime; // in ms
state.avrSpeed = state.distance * 1000 / duration; // meters/sec
state.curSpeed = state.curSpeed*0.8 + fix.speed*0.2*3.6; // meters/sec
if (stats["pacea"]) stats["pacea"].emit("changed",stats["pacea"]);
state.lastGPS = state.thisGPS;
state.thisGPS = fix;
if (stats["pacec"]) stats["pacec"].emit("changed",stats["pacec"]);
if (stats["speed"]) stats["speed"].emit("changed",stats["speed"]);
});
@ -192,16 +194,16 @@ exports.getStats = function(statIDs, options) {
needGPS = true;
stats["pacec"]={
title : "C Pace",
getValue : function() { return (state.thisGPS.speed||0)/3.6; }, // in m/sec
getString : function() { return formatPace(this.getValue(), options.paceLength); },
getValue : function() { return state.curSpeed; }, // in m/sec
getString : function() { return formatPace(state.curSpeed, options.paceLength); },
};
}
if (statIDs.includes("speed")) {
needGPS = true;
stats["speed"]={
title : "Speed",
getValue : function() { return state.thisGPS.speed||0; }, // in kph
getString : function() { return require("locale").speed(state.thisGPS.speed||0); },
getValue : function() { return state.curSpeed/3.6; }, // in kph
getString : function() { return require("locale").speed(state.curSpeed/3.6); },
};
}
if (statIDs.includes("caden")) {
@ -242,6 +244,7 @@ exports.getStats = function(statIDs, options) {
state.stepsPerMin = 0;
state.distance = 0;
state.avrSpeed = 0;
state.curSpeed = 0;
state.BPM = 0;
state.BPMage = 0;
}