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Plot on OpenStreetMap tiles 

Add option to plot tracks on top of OpenStreetMap tiles, if they are installed on the watch.
master
berkenbu 2020-07-03 23:03:13 -04:00 committed by GitHub
parent adbfcead38
commit 4ccea1377f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 73 additions and 16 deletions
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89
apps/gpsrec/app.js
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@ -2,6 +2,7 @@ Bangle.loadWidgets();
Bangle.drawWidgets();
var settings = require("Storage").readJSON("gpsrec.json",1)||{};
var qOpenStMap = (require("Storage").list("openstmap.json")>0);
function getFN(n) {
return ".gpsrc"+n.toString(36);
@ -130,8 +131,14 @@ function viewTrack(n, info) {
menu["Duration"] = { value : asTime(info.duration)};
menu["Records"] = { value : ""+info.records };
menu['Plot Map'] = function() {
info.qOSTM = false;
plotTrack(info);
};
if (qOpenStMap)
menu['Plot OpenStMap'] = function() {
info.qOSTM = true;
plotTrack(info);
}
menu['Plot Alt.'] = function() {
plotGraph(info, "altitude");
};
@ -154,6 +161,26 @@ function viewTrack(n, info) {
return E.showMenu(menu);
}
function drawopenstmap(lat, lon, map) {
var s = require("Storage");
var cx = g.getWidth()/2;
var cy = g.getHeight()/2;
var p = Bangle.project({lat:lat,lon:lon});
var ix = (p.x-map.center.x)*4096/map.scale + (map.imgx/2) - cx;
var iy = (map.center.y-p.y)*4096/map.scale + (map.imgy/2) - cy;
var tx = 0|(ix/map.tilesize);
var ty = 0|(iy/map.tilesize);
var ox = (tx*map.tilesize)-ix;
var oy = (ty*map.tilesize)-iy;
for (var x=ox,ttx=tx;x<g.getWidth();x+=map.tilesize,ttx++) {
for (var y=oy,tty=ty;y<g.getHeight();y+=map.tilesize,tty++) {
var img = s.read("openstmap-"+ttx+"-"+tty+".img");
if (img) g.drawImage(img,x,y);
else g.clearRect(x,y,x+map.tilesize-1,y+map.tilesize-1);
}
}
}
function plotTrack(info) {
"ram"
@ -167,17 +194,46 @@ function plotTrack(info) {
return Math.sqrt(x*x + y*y) * 6371000;
}
function getMapXY(mylat, mylon) {
if (info.qOSTM) {
var q = Bangle.project({lat:mylat,lon:mylon});
var p = Bangle.project({lat:clat,lon:clon});
var ix = (q.x-p.x)*4096/map.scale + cx;
var iy = cy - (q.y-p.y)*4096/map.scale;
return {x:ix, y:iy};
}
else {
var ix = 30 + Math.round((long-info.minLong)*info.lfactor*info.scale);
var iy = 210 - Math.round((lat - info.minLat)*info.scale);
return {x:ix, y:iy};
}
}
E.showMenu(); // remove menu
var s = require("Storage");
var cx = g.getWidth()/2;
var cy = g.getHeight()/2;
g.setColor(1,0.5,0.5);
g.setFont("Vector",16);
g.fillRect(9,80,11,120);
g.fillPoly([9,60,19,80,0,80]);
g.setColor(1,1,1);
g.drawString("N",2,40);
g.drawString("Track"+info.fn.toString()+" - Loading",10,220);
g.setColor(0,0,0);
g.fillRect(0,220,239,239);
g.setColor(1,1,1);
if (!info.qOSTM) {
g.setColor(1, 0, 0);
g.fillRect(9,80,11,120);
g.fillPoly([9,60,19,80,0,80]);
g.setColor(1,1,1);
g.drawString("N",2,40);
g.setColor(1,1,1);
}
else {
var map = s.readJSON("openstmap.json");
map.center = Bangle.project({lat:map.lat,lon:map.lon});
var clat = (info.minLat+info.maxLat)/2;
var clon = (info.minLong+info.maxLong)/2;
drawopenstmap(clat, clon, map);
g.setColor(0, 0, 0);
}
g.drawString(asTime(info.duration),10,220);
var f = require("Storage").open(info.filename,"r");
if (f===undefined) return;
@ -189,31 +245,32 @@ function plotTrack(info) {
var c = l.split(",");
var lat = +c[1];
var long = +c[2];
var x = 30 + Math.round((long-info.minLong)*info.lfactor*info.scale);
var y = 210 - Math.round((lat - info.minLat)*info.scale);
g.moveTo(x,y);
var mp = getMapXY(lat, long);
g.moveTo(mp.x,mp.y);
g.setColor(0,1,0);
g.fillCircle(x,y,5);
g.setColor(1,1,1);
g.fillCircle(mp.x,mp.y,5);
if (info.qOSTM) g.setColor(1,0,0.55);
else g.setColor(1,1,1);
l = f.readLine(f);
while(l!==undefined) {
c = l.split(",");
lat = +c[1];
long = +c[2];
x = 30 + Math.round((long-info.minLong)*info.lfactor*info.scale);
y = 210 - Math.round((lat - info.minLat)*info.scale);
g.lineTo(x,y);
mp = getMapXY(lat, long);
g.lineTo(mp.x,mp.y);
if (info.qOSTM) g.fillCircle(mp.x, mp.y, 1);
var d = distance(olat,olong,lat,long);
if (!isNaN(d)) dist+=d;
olat = lat;
olong = long;
ox = x;
oy = y;
ox = mp.x;
oy = mp.y;
l = f.readLine(f);
}
g.setColor(1,0,0);
g.fillCircle(ox,oy,5);
g.setColor(1,1,1);
if (info.qOSTM) g.setColor(0, 0, 0);
else g.setColor(1,1,1);
g.drawString(require("locale").distance(dist),120,220);
g.setFont("6x8",2);
g.setFontAlign(0,0,3);