From 6b407f10b934bb495ca7886eeeb521f1ae163791 Mon Sep 17 00:00:00 2001
From: Pablo Gonzalez <pglez82@gmail.com>
Date: Thu, 28 Jan 2021 18:19:17 +0100
Subject: [PATCH] planetarium

---
 apps/planetarium/planetarium.app.js | 191 ++++++++++++++++------------
 1 file changed, 110 insertions(+), 81 deletions(-)

diff --git a/apps/planetarium/planetarium.app.js b/apps/planetarium/planetarium.app.js
index 3f4c00297..f24e5d7c2 100644
--- a/apps/planetarium/planetarium.app.js
+++ b/apps/planetarium/planetarium.app.js
@@ -49,93 +49,122 @@ function binary_search(a, value) {
     return null;
 }
 
-var longitudeSign = 1; //1 for west and -1 for east;
-var longitudeDegrees = 5;
-var longitudeMinutes = 37;
-var longitudeSeconds = 27.4;
-var longitude = toRadians(longitudeSign * (longitudeDegrees + longitudeMinutes / 60 + longitudeSeconds / 3600));
-var latitudeSign = 1; //1 for north -1 for south;
-var latitudeDegrees = 43;
-var latitudeMinutes = 25;
-var latitudeSeconds = 0.9;
-var latitude = toRadians(latitudeSign * (latitudeDegrees + latitudeMinutes / 60 + latitudeSeconds / 3600));
-var year = 2020;
-var month = 1;
-var day = 27;
-var hours = 22;
-var minutes = 0;
-var seconds = 0;
-var timeZone = 1;
-var julianDay = toJulianDay(year, month, day, hours - timeZone, minutes, seconds);
-var size = 240;
+function drawStars(lat,lon,date){
+  var longitude = toRadians(-lon);
+  var latitude = toRadians(lat);
+  
+  
+  
 
-storage = require('Storage');
-f=storage.read("planetarium.data.csv","r");
-linestart=0;
-g.clearRect(0, 0, 240, 240);
+  var julianDay = toJulianDay(date.getFullYear(), date.getMonth()+1,date.getDate(),
+                              date.getHours() + date.getTimezoneOffset() / 60,
+                              date.getMinutes(), date.getSeconds());
+  var size = 240;
 
-//Common calculations based only on time
-var t = (julianDay - 2451545.0) / 36525;
-var zeta = toRadians((2306.2181 * t + 0.30188 * t * t + 0.017998 * t * t * t) / 3600);
-var theta = toRadians((2004.3109 * t - 0.42665 * t * t - 0.041833 * t * t * t) / 3600);
-var z = toRadians((2306.2181 * t + 1.09468 * t * t + 0.018203 * t * t * t) / 3600);
+  storage = require('Storage');
+  f=storage.read("planetarium.csv","r");
+  linestart=0;
+  g.clear();
+
+  //Common calculations based only on time
+  var t = (julianDay - 2451545.0) / 36525;
+  var zeta = toRadians((2306.2181 * t + 0.30188 * t * t + 0.017998 * t * t * t) / 3600);
+  var theta = toRadians((2004.3109 * t - 0.42665 * t * t - 0.041833 * t * t * t) / 3600);
+  var z = toRadians((2306.2181 * t + 1.09468 * t * t + 0.018203 * t * t * t) / 3600);
 
 
-let starNumber = 0;
-//Each star has a number (the position on the file (line number)). These are the lines
-//joining each star in the constellations.
-constelation_lines=[/*Orion*/[7,68],[10,53],[53,56],[28,68],/*Taurus*/[13,172],[13,340],[293,340],[29,293],
-                    /*canis menor*/[155,8]];
-var starPositions = {};
+  let starNumber = 0;
+  //Each star has a number (the position on the file (line number)). These are the lines
+  //joining each star in the constellations.
+  constelation_lines=[/*Orion*/[7,68],[10,53],[53,56],[28,68],/*Taurus*/[13,172],[13,340],[293,340],[29,293],
+                      /*canis menor*/[155,8]];
+  var starPositions = {};
 
-for (i=0;i<f.length;i++)
-{
-  if (f[i]=='\n'){
-    var start = new Date().getTime();
-    starNumber++;
-    //console.log("Line from "+linestart.toString()+"to "+(i-1).toString());
-    line = f.substr(linestart,i-linestart);
-    //console.log(line);
-    linestart = i+1;
-    //Process the star
-    starInfo = line.split(',');
-    //console.log(starInfo[0]);
-    starRA = parseFloat(starInfo[0]);
-    starDE = parseFloat(starInfo[1]);
-    starMag = parseFloat(starInfo[2]);
-    //var start = new Date().getTime();
-    var dec = Math.asin(Math.sin(theta) * Math.cos(starDE) * Math.cos(starRA + zeta) + Math.cos(theta) * Math.sin(starDE));
-    var ascen = Math.atan2(Math.cos(starDE) * Math.sin(starRA + zeta), Math.cos(theta) * Math.cos(starDE) * Math.cos(starRA + zeta) - Math.sin(theta) * Math.sin(starDE)) + z;
-    var H = siderealTime(julianDay) - longitude - ascen;
-    //var end = new Date().getTime();
-    //console.log("Call to doSomething took " + (end - start) + " milliseconds.");
-    //Compute altitude
-    var alt = Math.asin(Math.sin(latitude) * Math.sin(dec) + Math.cos(latitude) * Math.cos(dec) * Math.cos(H));
-    if(alt >= 0)
-    {
-      //Compute azimuth  
-      var azi = Math.atan2(Math.sin(H), Math.cos(H) * Math.sin(latitude) - Math.tan(dec) * Math.cos(latitude));
-      var x = size / 2 + size / 2 * Math.cos(alt) * Math.sin(azi);
-      var y = size / 2 + size / 2 * Math.cos(alt) * Math.cos(azi);
-      starPositions[starNumber] = [x,y];
-      var magnitude = starMag<1.5?2:1;
-      g.fillCircle(x, y, magnitude);
-      if (starMag<1)
-        g.drawString(starInfo[3],x,y+2);
-      g.flip();
-      
+  for (i=0;i<f.length;i++)
+  {
+    if (f[i]=='\n'){
+      var start = new Date().getTime();
+      starNumber++;
+      //console.log("Line from "+linestart.toString()+"to "+(i-1).toString());
+      line = f.substr(linestart,i-linestart);
+      //console.log(line);
+      linestart = i+1;
+      //Process the star
+      starInfo = line.split(',');
+      //console.log(starInfo[0]);
+      starRA = parseFloat(starInfo[0]);
+      starDE = parseFloat(starInfo[1]);
+      starMag = parseFloat(starInfo[2]);
+      //var start = new Date().getTime();
+      var dec = Math.asin(Math.sin(theta) * Math.cos(starDE) * Math.cos(starRA + zeta) + Math.cos(theta) * Math.sin(starDE));
+      var ascen = Math.atan2(Math.cos(starDE) * Math.sin(starRA + zeta), Math.cos(theta) * Math.cos(starDE) * Math.cos(starRA + zeta) - Math.sin(theta) * Math.sin(starDE)) + z;
+      var H = siderealTime(julianDay) - longitude - ascen;
+      //var end = new Date().getTime();
+      //console.log("Call to doSomething took " + (end - start) + " milliseconds.");
+      //Compute altitude
+      var alt = Math.asin(Math.sin(latitude) * Math.sin(dec) + Math.cos(latitude) * Math.cos(dec) * Math.cos(H));
+      if(alt >= 0)
+      {
+        //Compute azimuth  
+        var azi = Math.atan2(Math.sin(H), Math.cos(H) * Math.sin(latitude) - Math.tan(dec) * Math.cos(latitude));
+        var x = size / 2 + size / 2 * Math.cos(alt) * Math.sin(azi);
+        var y = size / 2 + size / 2 * Math.cos(alt) * Math.cos(azi);
+        starPositions[starNumber] = [x,y];
+        var magnitude = starMag<1.5?2:1;
+        g.fillCircle(x, y, magnitude);
+        if (starMag<1)
+          g.drawString(starInfo[3],x,y+2);
+        g.flip();
+
+      }
     }
   }
+
+  for (i=0;i<constelation_lines.length;i++)
+  {
+    constelation = constelation_lines[i];
+    positionStar1=starPositions[constelation[0]];
+    positionStar2=starPositions[constelation[1]];
+    //Both stars need to be visible
+    g.setColor(0,255,0);
+    if (positionStar1 && positionStar2)
+      g.drawLine(positionStar1[0],positionStar1[1],positionStar2[0],positionStar2[1]);
+    g.flip();
+  }
 }
 
-for (i=0;i<constelation_lines.length;i++)
-{
-  constelation = constelation_lines[i];
-  positionStar1=starPositions[constelation[0]];
-  positionStar2=starPositions[constelation[1]];
-  //Both stars need to be visible
-  g.setColor(0,255,0);
-  if (positionStar1 && positionStar2)
-    g.drawLine(positionStar1[0],positionStar1[1],positionStar2[0],positionStar2[1]);
-  g.flip();
-}
\ No newline at end of file
+Bangle.setGPSPower(1);
+
+var gps = { fix : 0};
+var gpsCount = 0;
+var prevSats = 0;
+g.clear();
+
+
+
+g.setFontAlign(0,0);
+
+Bangle.on('GPS',function(gp) {
+  date = new Date();
+  gps = gp;
+  gpsCount++;
+  if (gp.fix) {
+    lat = gp.lat;
+    lon = gp.lon;
+    Bangle.setGPSPower(0);
+    drawStars(lat,lon,date);
+  } else {
+    g.setFont("Vector",20); 
+    g.drawString("Waiting for position",120,120);
+    g.setFont("Vector",15); 
+    if (gp.satellites>prevSats || prevSats===0){
+      prevSats = gp.satellites;
+      g.clearRect(0,150,240,180);
+      g.drawString("Got "+gp.satellites+" satellites",120,160);
+    }
+    g.clearRect(0,180,240,220);
+    g.drawString("GMT:"+(date.getHours()+date.getTimezoneOffset() / 60)+":"+date.getMinutes()+":"+date.getSeconds(),120,200);
+    g.drawString(date.getDate()+'/'+date.getMonth()+1+"/"+date.getFullYear(),120,215);
+    g.flip();
+  }
+});
\ No newline at end of file