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Merge pull request #190 from Purple-Tentacle/master 

Moonphase, added GPS and more buttons
master
Gordon Williams 2020-04-02 20:37:18 +01:00 committed by GitHub
parent 668f7bb549 4792189adc
commit 282ff71577
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3 changed files with 310 additions and 252 deletions
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4
apps.json
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@ -15,8 +15,8 @@
{ "id": "moonphase",
"name": "Moonphase",
"icon": "app.png",
"version":"0.01",
"description": "Shows current moon phase. Currently only with fixed coordinates (northern hemisphere).",
"version":"0.02",
"description": "Shows current moon phase. Now with GPS function.",
"tags": "",
"allow_emulator":true,
"storage": [

1
apps/moonphase/ChangeLog
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@ -1 +1,2 @@
0.01: New App!
0.02: Added GPS to obtain coordinates, added buttons

231
apps/moonphase/app.js
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@ -1,6 +1,26 @@
//Icons from https://icons8.com
//Sun and Moon calculations from https://github.com/mourner/suncalc and https://gist.github.com/endel/dfe6bb2fbe679781948c
//varibales
const storage = require('Storage');
let coords;
var timer;
var fix;
var PI = Math.PI,
sin = Math.sin,
cos = Math.cos,
tan = Math.tan,
asin = Math.asin,
atan = Math.atan2,
acos = Math.acos,
rad = PI / 180,
dayMs = 1000 * 60 * 60 * 24,
J1970 = 2440588,
J2000 = 2451545;
var SunCalc = {};
//pictures
function getImg(i) {
var data = {
@ -18,83 +38,63 @@ function getImg(i) {
"LastQuarterSouth" : "AD8AAH/4AHx/gDwf8BwH/g4B/8MAf/HAH/5gB/+YAf/sAH//AB//wAf/8AH//AB//wAf/2AH/5gB/+cAf/jAH/w4B/8HAf+A8H/AHx/gAf/gAA/AAA==",
"WaningCrescentNorth" : "AD8AAH/4AH8PgD+A8B/ADg/gAcP4ADH+AA5/AAGfwABv8AAP/AAD/wAA/8AAP/AAD/wAA38AAZ/AAGf4ADj+AAw/gAcH8AOA/gPAH8PgAf/gAA/AAA==",
"WaxingCrescentSouth" : "AD8AAH/4AH8PgD+A8B/ADg/gAcP4ADH+AA5/AAGfwABv8AAP/AAD/wAA/8AAP/AAD/wAA38AAZ/AAGf4ADj+AAw/gAcH8AOA/gPAH8PgAf/gAA/AAA=="
};
};
return {
width : 26, height : 26, bpp : 1,
transparent : 0,
buffer : E.toArrayBuffer(atob(data[i]))
};
}
// sun calculations are based on http://aa.quae.nl/en/reken/zonpositie.html formulas
// date/time constants and conversions
function toJulian(date) { return date.valueOf() / dayMs - 0.5 + J1970; }
function fromJulian(j) { return new Date((j + 0.5 - J1970) * dayMs); }
function toDays(date) { return toJulian(date) - J2000; }
//coordinates (will get from GPS later on real device)
var lat = 52.96236,
lon = 7.62571;
var PI = Math.PI,
sin = Math.sin,
cos = Math.cos,
tan = Math.tan,
asin = Math.asin,
atan = Math.atan2,
acos = Math.acos,
rad = PI / 180;
// sun calculations are based on http://aa.quae.nl/en/reken/zonpositie.html formulas
// date/time constants and conversions
var dayMs = 1000 * 60 * 60 * 24,
J1970 = 2440588,
J2000 = 2451545;
function toJulian(date) { return date.valueOf() / dayMs - 0.5 + J1970; }
function fromJulian(j) { return new Date((j + 0.5 - J1970) * dayMs); }
function toDays(date) { return toJulian(date) - J2000; }
// general calculations for position
var e = rad * 23.4397; // obliquity of the Earth
function rightAscension(l, b) { return atan(sin(l) * cos(e) - tan(b) * sin(e), cos(l)); }
function declination(l, b) { return asin(sin(b) * cos(e) + cos(b) * sin(e) * sin(l)); }
function azimuth(H, phi, dec) { return atan(sin(H), cos(H) * sin(phi) - tan(dec) * cos(phi)); }
function altitude(H, phi, dec) { return asin(sin(phi) * sin(dec) + cos(phi) * cos(dec) * cos(H)); }
function siderealTime(d, lw) { return rad * (280.16 + 360.9856235 * d) - lw; }
function astroRefraction(h) {
// general calculations for position
var e = rad * 23.4397; // obliquity of the Earth
function rightAscension(l, b) { return atan(sin(l) * cos(e) - tan(b) * sin(e), cos(l)); }
function declination(l, b) { return asin(sin(b) * cos(e) + cos(b) * sin(e) * sin(l)); }
function azimuth(H, phi, dec) { return atan(sin(H), cos(H) * sin(phi) - tan(dec) * cos(phi)); }
function altitude(H, phi, dec) { return asin(sin(phi) * sin(dec) + cos(phi) * cos(dec) * cos(H)); }
function siderealTime(d, lw) { return rad * (280.16 + 360.9856235 * d) - lw; }
function astroRefraction(h) {
if (h < 0) // the following formula works for positive altitudes only.
h = 0; // if h = -0.08901179 a div/0 would occur.
// formula 16.4 of "Astronomical Algorithms" 2nd edition by Jean Meeus (Willmann-Bell, Richmond) 1998.
// 1.02 / tan(h + 10.26 / (h + 5.10)) h in degrees, result in arc minutes -> converted to rad:
return 0.0002967 / Math.tan(h + 0.00312536 / (h + 0.08901179));
}
}
// general sun calculations
function solarMeanAnomaly(d) { return rad * (357.5291 + 0.98560028 * d); }
function eclipticLongitude(M) {
// general sun calculations
function solarMeanAnomaly(d) { return rad * (357.5291 + 0.98560028 * d); }
function eclipticLongitude(M) {
var C = rad * (1.9148 * sin(M) + 0.02 * sin(2 * M) + 0.0003 * sin(3 * M)), // equation of center
P = rad * 102.9372; // perihelion of the Earth
return M + C + P + PI;
}
function sunCoords(d) {
}
function sunCoords(d) {
var M = solarMeanAnomaly(d),
L = eclipticLongitude(M);
return {
dec: declination(L, 0),
ra: rightAscension(L, 0)
};
}
}
var SunCalc = {};
// adds a custom time to the times config
SunCalc.addTime = function (angle, riseName, setName) {
// adds a custom time to the times config
SunCalc.addTime = function (angle, riseName, setName) {
times.push([angle, riseName, setName]);
};
};
// moon calculations, based on http://aa.quae.nl/en/reken/hemelpositie.html formulas
function moonCoords(d) { // geocentric ecliptic coordinates of the moon
// moon calculations, based on http://aa.quae.nl/en/reken/hemelpositie.html formulas
function moonCoords(d) { // geocentric ecliptic coordinates of the moon
var L = rad * (218.316 + 13.176396 * d), // ecliptic longitude
M = rad * (134.963 + 13.064993 * d), // mean anomaly
F = rad * (93.272 + 13.229350 * d), // mean distance
@ -107,9 +107,9 @@ function getImg(i) {
dec: declination(l, b),
dist: dt
};
}
}
SunCalc.getMoonPosition = function (date, lat, lng) {
SunCalc.getMoonPosition = function (date, lat, lng) {
var lw = rad * -lng,
phi = rad * lat,
@ -126,13 +126,12 @@ function getImg(i) {
distance: c.dist,
parallacticAngle: pa
};
};
};
// calculations for illumination parameters of the moon,
// based on http://idlastro.gsfc.nasa.gov/ftp/pro/astro/mphase.pro formulas and
// Chapter 48 of "Astronomical Algorithms" 2nd edition by Jean Meeus (Willmann-Bell, Richmond) 1998.
SunCalc.getMoonIllumination = function (date) {
// calculations for illumination parameters of the moon,
// based on http://idlastro.gsfc.nasa.gov/ftp/pro/astro/mphase.pro formulas and
// Chapter 48 of "Astronomical Algorithms" 2nd edition by Jean Meeus (Willmann-Bell, Richmond) 1998.
SunCalc.getMoonIllumination = function (date) {
var year = date.getFullYear();
var month = date.getMonth();
var day = date.getDate();
@ -156,20 +155,18 @@ function getImg(i) {
jd -= b; // subtract integer part to leave fractional part of original jd
b = Math.round(jd * 8); // scale fraction from 0-8 and round
if (b >= 8) b = 0; // 0 and 8 are the same so turn 8 into 0
//print ({phase: b, name: Moon.phases[b]});
return {phase: b, name: Moon.phases[b]};
}
};
return (Moon.phase(year, month, day));
};
};
function hoursLater(date, h) {
function hoursLater(date, h) {
return new Date(date.valueOf() + h * dayMs / 24);
}
}
// calculations for moon rise/set times are based on http://www.stargazing.net/kepler/moonrise.html article
SunCalc.getMoonTimes = function (date, lat, lng, inUTC) {
// calculations for moon rise/set times are based on http://www.stargazing.net/kepler/moonrise.html article
SunCalc.getMoonTimes = function (date, lat, lng, inUTC) {
var t = new Date(date);
if (inUTC) t.setUTCHours(0, 0, 0, 0);
else t.setHours(0, 0, 0, 0);
@ -210,9 +207,9 @@ function getImg(i) {
if (set) result.set = hoursLater(t, set);
if (!rise && !set) result[ye > 0 ? 'alwaysUp' : 'alwaysDown'] = true;
return result;
};
};
function getMPhaseComp (offset) {
function getMPhaseComp (offset) {
var date = new Date();
date.setDate(date.getDate() + offset);
var dd = String(date.getDate());
@ -222,9 +219,9 @@ function getImg(i) {
var yyyy = date.getFullYear();
var phase = SunCalc.getMoonIllumination(date);
return dd + "." + mm + "." + yyyy + ": "+ phase.name;
}
}
function getMPhaseSim (offset) {
function getMPhaseSim (offset) {
var date = new Date();
date.setDate(date.getDate() + offset);
var dd = String(date.getDate());
@ -234,10 +231,10 @@ function getImg(i) {
var yyyy = date.getFullYear();
var phase = SunCalc.getMoonIllumination(date);
return phase.name;
}
}
function drawMoonPhase(offset, x, y){
if (lat >= 0 && lat <= 90){ //Northern hemisphere
function drawMoonPhase(offset, x, y){
if (coords.lat >= 0 && coords.lat <= 90){ //Northern hemisphere
if (getMPhaseSim(offset) == "new") {g.drawImage(getImg("NewMoon"), x, y);}
if (getMPhaseSim(offset) == "waxing-crescent") {g.drawImage(getImg("WaxingCrescentNorth"), x, y);}
if (getMPhaseSim(offset) == "first-quarter") {g.drawImage(getImg("FirstQuarterNorth"), x, y);}
@ -246,7 +243,7 @@ function getImg(i) {
if (getMPhaseSim(offset) == "waning-gibbous") {g.drawImage(getImg("WaningGibbousNorth"), x, y);}
if (getMPhaseSim(offset) == "last-quarter") {g.drawImage(getImg("LastQuarterNorth"), x, y);}
if (getMPhaseSim(offset) == "waning-crescent") {g.drawImage(getImg("WaningCrescentNorth"), x, y);}
}
}
else { //Southern hemisphere
if (getMPhaseSim(offset) == "new") {g.drawImage(getImg("NewMoon"), x, y);}
if (getMPhaseSim(offset) == "waxing-crescent") {g.drawImage(getImg("WaxingCrescentSouth"), x, y);}
@ -257,40 +254,100 @@ function getImg(i) {
if (getMPhaseSim(offset) == "last-quarter") {g.drawImage(getImg("LastQuarterSouth"), x, y);}
if (getMPhaseSim(offset) == "waning-crescent") {g.drawImage(getImg("WaningCrescentSouth"), x, y);}
}
}
}
function drawMoon(offset, x, y) {
function drawMoon(offset, x, y) {
g.setFont("6x8");
g.clear();
g.drawString("Key1: increase day, Key3:decrease day",10,10);
g.drawString(getMPhaseComp(offset),x,y-10);
drawMoonPhase(offset, x, y);
g.drawString("Key1: day+, Key2:today, Key3:day-",x,y-30);
g.drawString("Last known coordinates: " + coords.lat.toFixed(4) + " " + coords.lon.toFixed(4), x, y-20);
g.drawString("Press BTN4 to update",x, y-10);
g.drawString(getMPhaseComp(offset+2),x,y+40);
drawMoonPhase(offset+2, x, y+50);
g.drawString(getMPhaseComp(offset),x,y+30);
drawMoonPhase(offset, x+35, y+40);
g.drawString(getMPhaseComp(offset+4),x,y+90);
drawMoonPhase(offset+4, x, y+100);
g.drawString(getMPhaseComp(offset+2),x,y+70);
drawMoonPhase(offset+2, x+35, y+80);
g.drawString(getMPhaseComp(offset+6),x,y+140);
drawMoonPhase(offset+6, x, y+150);
g.drawString(getMPhaseComp(offset+4),x,y+110);
drawMoonPhase(offset+4, x+35, y+120);
g.drawString(getMPhaseComp(offset+6),x,y+150);
drawMoonPhase(offset+6, x+35, y+160);
}
//Write coordinates to file
function updateCoords() {
storage.write('coords.json', coords);
}
//set coordinates to default (city where I live)
function resetCoords() {
coords = {
lat : 52.96236,
lon : 7.62571,
};
updateCoords();
}
function getGpsFix() {
Bangle.on('GPS', function(fix) {
g.clear();
if (fix.fix == 1) {
var gpsString = "lat: " + fix.lat.toFixed(4) + " lon: " + fix.lon.toFixed(4);
coords.lat = fix.lat;
coords.lon = fix.lon;
updateCoords();
g.drawString("Got GPS fix and wrote coords to file",10,20);
g.drawString(gpsString,10,30);
g.drawString("Press BTN5 to return to app",10,40);
clearInterval(timer);
timer = undefined;
}
else {
g.drawString("Searching satellites...",10,20);
g.drawString("Press BTN5 to stop GPS",10, 30);
}
});
}
function start() {
function start() {
var x = 10;
var y = 40;
var y = 50;
var offsetMoon = 0;
coords = storage.readJSON('coords.json',1); //read coordinates from file
if (!coords) resetCoords(); //if coordinates could not be read, reset them
drawMoon(offsetMoon, x, y); //offset, x, y
//define button functions
setWatch(function() {
setWatch(function() { //BTN1
offsetMoon++; //jump to next day
drawMoon(offsetMoon, x, y); //offset, x, y
}, BTN1, {edge:"rising", debounce:50, repeat:true});
setWatch(function() {
setWatch(function() { //BTN2
offsetMoon = 0; //jump to today
drawMoon(offsetMoon, x, y); //offset, x, y
}, BTN2, {edge:"rising", debounce:50, repeat:true});
setWatch(function() { //BTN3
offsetMoon--; //jump to next day
drawMoon(offsetMoon, x, y); //offset, x, y
}, BTN3, {edge:"rising", debounce:50, repeat:true});
}
start();
setWatch(function() { //BTN4
g.drawString("--- Getting GPS signal ---",x, y);
Bangle.setGPSPower(1);
timer = setInterval(getGpsFix, 10000);
}, BTN4, {edge:"rising", debounce:50, repeat:true});
setWatch(function() { //BTN5
if (timer) clearInterval(timer);
timer = undefined;
Bangle.setGPSPower(0);
drawMoon(offsetMoon, x, y); //offset, x, y
}, BTN5, {edge:"rising", debounce:50, repeat:true});
}
start();