forked from FOSS/BangleApps
Delete old dir
marko
parent
ac83cf1a07
commit
5514ed8ea0
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marko@MBP2.29782
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0.01: New App!
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0.02: Fix marker position, color, and map scaling
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0.03: Show widgets (mainly so we can use the GPS recorder widget)
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0.04: Move map rendering to a module (fix #396)
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0.05: Show currently active gpsrec GPS trace (fix #395)
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0.06: Add support for scrolling, option for 3 bit maps
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0.07: Move to 96px tiles - less files (64 -> 25) and speed up rendering
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0.08: Update for drag event refactor
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0.09: Use current theme cols when drawing GPS info
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0.10: Improve scale factor calculation to fix scaling issues (#984)
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0.11: Add slight offset to OSM data to align it properly (fix #984)
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Fix alignment of satellite info text
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Binary file not shown.
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Before Width: | Height: | Size: 5.2 KiB |
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require("heatshrink").decompress(atob("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"))
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var m = require("openseachart");
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var HASWIDGETS = true;
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var y1,y2;
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var fix = {};
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function redraw() {
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g.setClipRect(0,y1,g.getWidth()-1,y2);
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m.draw();
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drawMarker();
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if (WIDGETS["gpsrec"] && WIDGETS["gpsrec"].plotTrack) {
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g.flip(); // force immediate draw on double-buffered screens - track will update later
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g.setColor(0.75,0.2,0);
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WIDGETS["gpsrec"].plotTrack(m);
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}
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g.setClipRect(0,0,g.getWidth()-1,g.getHeight()-1);
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}
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function drawMarker() {
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if (!fix.fix) return;
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var p = m.latLonToXY(fix.lat, fix.lon);
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g.setColor(1,0,0);
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g.fillRect(p.x-2, p.y-2, p.x+2, p.y+2);
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}
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var fix;
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Bangle.on('GPS',function(f) {
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fix=f;
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g.reset().clearRect(0,y1,g.getWidth()-1,y1+8).setFont("6x8").setFontAlign(0,0);
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var txt = fix.satellites+" satellites";
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if (!fix.fix)
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txt += " - NO FIX";
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g.drawString(txt,g.getWidth()/2,y1 + 4);
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drawMarker();
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});
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Bangle.setGPSPower(1, "app");
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if (HASWIDGETS) {
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Bangle.loadWidgets();
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Bangle.drawWidgets();
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y1 = 24;
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var hasBottomRow = Object.keys(WIDGETS).some(w=>WIDGETS[w].area[0]=="b");
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y2 = g.getHeight() - (hasBottomRow ? 24 : 1);
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} else {
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y1=0;
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y2=g.getHeight()-1;
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}
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redraw();
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function recenter() {
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if (!fix.fix) return;
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m.lat = fix.lat;
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m.lon = fix.lon;
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redraw();
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}
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setWatch(recenter, global.BTN2?BTN2:BTN1, {repeat:true});
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var hasScrolled = false;
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Bangle.on('drag',e=>{
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if (e.b) {
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g.setClipRect(0,y1,g.getWidth()-1,y2);
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g.scroll(e.dx,e.dy);
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m.scroll(e.dx,e.dy);
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g.setClipRect(0,0,g.getWidth()-1,g.getHeight()-1);
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hasScrolled = true;
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} else if (hasScrolled) {
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hasScrolled = false;
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redraw();
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}
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});
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Binary file not shown.
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Before Width: | Height: | Size: 16 KiB |
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<html>
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<head>
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<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.3/dist/leaflet.css" />
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<link rel="stylesheet" href="../../css/spectre.min.css">
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<link rel="stylesheet" href="https://unpkg.com/leaflet-geosearch@3.6.0/dist/geosearch.css"/>
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</head>
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<style>
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body {
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padding: 0;
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margin: 0;
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}
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html, body, #map {
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height: 100%;
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width: 100%;
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}
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#map { z-index: 1; }
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#controls {
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padding: 10px;
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margin: 10px;
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border: 1px solid black;
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position:absolute;
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right:0px;top:0px;
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background-color: rgb(255, 255, 255);
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z-index: 100;
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}
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#maptiles {
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width: 256px;
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height: 256px;
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}
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</style>
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</head>
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<body>
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<div id="map">
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</div>
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<div id="controls">
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<div style="display:inline-block;text-align:center;vertical-align: top;"> <input type="checkbox" id="3bit"></input><br/><span>3 bit</span></div>
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<button id="getmap" class="btn btn-primary">Get Map</button><br/>
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<canvas id="maptiles" style="display:none"></canvas>
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<div id="uploadbuttons" style="display:none"><button id="upload" class="btn btn-primary">Upload</button>
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<button id="cancel" class="btn">Cancel</button></div>
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</div>
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<script src="../../core/lib/customize.js"></script>
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<script src="https://unpkg.com/leaflet@1.0.3/dist/leaflet.js"></script>
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<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
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<script src="../../core/lib/heatshrink.js"></script>
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<script src="../../core/lib/imageconverter.js"></script>
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<script src="https://unpkg.com/leaflet-geosearch@3.6.0/dist/bundle.min.js"></script>
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<script>
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/*
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TODO:
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* Allow a larger tilesize. Currently we use 'evaluate:true' which means we can only send 64x64x8 bit, but with some tweaking we could send 128x128 which would reduce the number of files and make things a bit snappier
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* Could maybe use palettised output?
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* Could potentially use a custom 16 color palette?
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* Allow user to choose size of map area to be uploaded (small/med/large)
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* What is faster? Storing as a compressed image and decompressing, or storing decompressed?
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*/
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var TILESIZE = 64;
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var OSMTILESIZE = 256;
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var OSMSUBTILES = OSMTILESIZE / TILESIZE;
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/* Can see possible tiles on http://leaflet-extras.github.io/leaflet-providers/preview/
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However some don't allow cross-origin use */
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var TILELAYER = 'https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png'; // simple, high contrast
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var PREVIEWTILELAYER = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
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//var TILELAYER = 'http://a.tile.stamen.com/toner/{z}/{x}/{y}.png'; // black and white
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// Create map and try and set the location to where the browser thinks we are
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var map = L.map('map').locate({setView: true, maxZoom: 16, enableHighAccuracy:true});
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// Tiles used for Bangle.js itself
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var bangleTileLayer = L.tileLayer(TILELAYER, {
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maxZoom: 18,
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attribution: 'Map data © <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors</a>'
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});
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// Tiles used for the may the user sees (faster)
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var previewTileLayer = L.tileLayer(PREVIEWTILELAYER, {
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maxZoom: 18,
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attribution: 'Map data © <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors</a>'
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});
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// Could optionally overlay trails: https://wiki.openstreetmap.org/wiki/Tiles
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var mapFiles = [];
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previewTileLayer.addTo(map);
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function tilesLoaded(ctx, width, height) {
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var options = { compression:true, mode:"web", output:"string"};
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if (document.getElementById("3bit").checked) {
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options = {
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compression:false, output:"raw",
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mode:"3bit",
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};
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/* If in 3 bit mode, go through all the data beforehand and
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turn the saturation up to maximum, so when thresholded it
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works a lot better */
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var imageData = ctx.getImageData(0,0,width,height);
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var rgba = imageData.data;
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var l = width*height*4;
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for (var i=0;i<l;i+=4) {
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var min = Math.min(rgba[i+0],rgba[i+1],rgba[i+2]);
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var max = Math.max(rgba[i+0],rgba[i+1],rgba[i+2]);
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var d = max-min;
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if (max<120) { // black
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rgba[i+0]=0;
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rgba[i+1]=0;
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rgba[i+2]=0;
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} else if (min>240 || d<8) { // white or grey
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rgba[i+0]=255;
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rgba[i+1]=255;
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rgba[i+2]=255;
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} else { // another colour - use max saturation
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rgba[i+0] = (rgba[i+0]-min) * 255 / d;
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rgba[i+1] = (rgba[i+1]-min) * 255 / d;
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rgba[i+2] = (rgba[i+2]-min) * 255 / d;
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}
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}
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ctx.putImageData(imageData,0,0);
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}
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console.log("Compression options", options);
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var w = Math.round(width / TILESIZE);
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var h = Math.round(height / TILESIZE);
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var tiles = [];
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for (var y=0;y<h;y++) {
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for (var x=0;x<w;x++) {
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var imageData = ctx.getImageData(x*TILESIZE, y*TILESIZE, TILESIZE, TILESIZE);
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var rgba = imageData.data;
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options.rgbaOut = rgba;
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options.width = TILESIZE;
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options.height = TILESIZE;
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var imgstr = imageconverter.RGBAtoString(rgba, options);
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ctx.putImageData(imageData,x*TILESIZE, y*TILESIZE); // write preview
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/*var compress = 'require("heatshrink").decompress('
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if (!imgstr.startsWith(compress)) throw "Data in wrong format";
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imgstr = imgstr.slice(compress.length,-1);*/
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tiles.push({
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name:"openstmap-"+x+"-"+y+".img",
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content:imgstr,
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evaluate:true
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});
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}
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}
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return tiles;
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}
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document.getElementById("getmap").addEventListener("click", function() {
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var zoom = map.getZoom();
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var centerlatlon = map.getBounds().getCenter();
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var center = map.project(centerlatlon, zoom).divideBy(OSMTILESIZE);
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// Reason for 16px adjustment below not 100% known, but it seems to
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// align everything perfectly: https://github.com/espruino/BangleApps/issues/984
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var ox = Math.round((center.x - Math.floor(center.x)) * OSMTILESIZE) + 16;
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var oy = Math.round((center.y - Math.floor(center.y)) * OSMTILESIZE) + 16;
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center = center.floor(); // make sure we're in the middle of a tile
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// JS version of Bangle.js's projection
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function bproject(lat, lon) {
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const degToRad = Math.PI / 180; // degree to radian conversion
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const latMax = 85.0511287798; // clip latitude to sane values
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const R = 6378137; // earth radius in m
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if (lat > latMax) lat=latMax;
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if (lat < -latMax) lat=-latMax;
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var s = Math.sin(lat * degToRad);
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return new L.Point(
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(R * lon * degToRad),
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(R * Math.log((1 + s) / (1 - s)) / 2)
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);
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}
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// Work out scale factors (how much from Bangle.project does one pixel equate to?)
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var pc = map.unproject(center.multiplyBy(OSMTILESIZE), zoom);
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var pd = map.unproject(center.multiplyBy(OSMTILESIZE).add({x:1,y:0}), zoom);
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var bc = bproject(pc.lat, pc.lng)
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var bd = bproject(pd.lat, pd.lng)
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var scale = bc.distanceTo(bd);
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// test
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/*var p = bproject(centerlatlon.lat, centerlatlon.lng);
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var q = bproject(mylat, mylon);
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var testPt = {
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x : (q.x-p.x)/scale + (MAPSIZE/2),
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y : (MAPSIZE/2) - (q.y-p.y)/scale
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};*/
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var tileGetters = [];
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// Render everything to a canvas...
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var canvas = document.getElementById("maptiles");
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canvas.style.display="";
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var ctx = canvas.getContext('2d');
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canvas.width = OSMTILESIZE*2;
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canvas.height = OSMTILESIZE*2;
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for (var i = 0; i < 3; i++) {
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for (var j = 0; j < 3; j++) {
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(function(i,j){
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var coords = new L.Point(center.x+i-1, center.y+j-1);
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coords.z = zoom;
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var img = new Image();
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img.crossOrigin = "Anonymous";
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tileGetters.push(new Promise(function(resolve,reject) {
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img.onload = function(){
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ctx.drawImage(img,i*OSMTILESIZE - ox, j*OSMTILESIZE - oy);
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/*if (testPt) {
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ctx.fillStyle="green";
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ctx.fillRect(testPt.x-1, testPt.y-5, 3,10);
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ctx.fillRect(testPt.x-5, testPt.y-1, 10,3);
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}*/
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resolve();
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};
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}));
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bangleTileLayer._tileZoom = previewTileLayer._tileZoom;
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img.src = bangleTileLayer.getTileUrl(coords);
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})(i,j);
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}
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}
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Promise.all(tileGetters).then(() => {
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document.getElementById("uploadbuttons").style.display="";
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mapFiles = tilesLoaded(ctx, canvas.width, canvas.height);
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mapFiles.unshift({name:"seachart.json",content:JSON.stringify({
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imgx : canvas.width,
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imgy : canvas.height,
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tilesize : TILESIZE,
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scale : scale, // how much of Bangle.project(latlon) does one pixel equate to?
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lat : centerlatlon.lat,
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lon : centerlatlon.lng
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})});
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console.log(mapFiles);
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});
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});
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document.getElementById("upload").addEventListener("click", function() {
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sendCustomizedApp({
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storage:mapFiles
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});
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});
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document.getElementById("cancel").addEventListener("click", function() {
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document.getElementById("maptiles").style.display="none";
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document.getElementById("uploadbuttons").style.display="none";
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});
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</script>
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</body>
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</html>
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@ -1,17 +0,0 @@
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{
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"id": "openseachart",
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"name": "OpenSeaChart",
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"shortName": "Openseachart",
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"version": "0.1",
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"description": "Display sea chart"
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"icon": "app.png",
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"tags": "outdoors,gps,osm",
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"supports": ["BANGLEJS","BANGLEJS2"],
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"custom": "custom.html",
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"customConnect": true,
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"storage": [
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{"name":"openseachart","url":"openseachart.js"},
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{"name":"openseachart.app.js","url":"app.js"},
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{"name":"openseachart.img","url":"app-icon.js","evaluate":true}
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]
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}
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@ -1,71 +0,0 @@
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/* OpenStreetMap plotting module.
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Usage:
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var m = require("openseachart");
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// m.lat/lon are now the center of the loaded map
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m.draw(); // draw centered on the middle of the loaded map
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// plot gps position on map
|
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Bangle.on('GPS',function(f) {
|
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if (!f.fix) return;
|
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var p = m.latLonToXY(fix.lat, fix.lon);
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g.fillRect(p.x-2, p.y-2, p.x+2, p.y+2);
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});
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// recenter and redraw map!
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function center() {
|
||||
m.lat = fix.lat;
|
||||
m.lon = fix.lon;
|
||||
m.draw();
|
||||
}
|
||||
|
||||
*/
|
||||
|
||||
var map = require("Storage").readJSON("openseachart.json");
|
||||
map.center = Bangle.project({lat:map.lat,lon:map.lon});
|
||||
exports.map = map;
|
||||
exports.lat = map.lat; // actual position of middle of screen
|
||||
exports.lon = map.lon; // actual position of middle of screen
|
||||
var m = exports;
|
||||
|
||||
exports.draw = function() {
|
||||
var s = require("Storage");
|
||||
var cx = g.getWidth()/2;
|
||||
var cy = g.getHeight()/2;
|
||||
var p = Bangle.project({lat:m.lat,lon:m.lon});
|
||||
var ix = (p.x-map.center.x)/map.scale + (map.imgx/2) - cx;
|
||||
var iy = (map.center.y-p.y)/map.scale + (map.imgy/2) - cy;
|
||||
//console.log(ix,iy);
|
||||
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("openseachart-"+ttx+"-"+tty+".img");
|
||||
if (img) g.drawImage(img,x,y);
|
||||
else g.clearRect(x,y,x+map.tilesize-1,y+map.tilesize-1).drawLine(x,y,x+map.tilesize-1,y+map.tilesize-1).drawLine(x,y+map.tilesize-1,x+map.tilesize-1,y);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/// Convert lat/lon to pixels on the screen
|
||||
exports.latLonToXY = function(lat, lon) {
|
||||
var p = Bangle.project({lat:m.lat,lon:m.lon});
|
||||
var q = Bangle.project({lat:lat, lon:lon});
|
||||
var cx = g.getWidth()/2;
|
||||
var cy = g.getHeight()/2;
|
||||
return {
|
||||
x : (q.x-p.x)/map.scale + cx,
|
||||
y : cy - (q.y-p.y)/map.scale
|
||||
};
|
||||
};
|
||||
|
||||
/// Given an amount to scroll in pixels on the screen, adjust the lat/lon of the map to match
|
||||
exports.scroll = function(x,y) {
|
||||
var a = Bangle.project({lat:this.lat,lon:this.lon});
|
||||
var b = Bangle.project({lat:this.lat+1,lon:this.lon+1});
|
||||
this.lon += x * this.map.scale / (a.x-b.x);
|
||||
this.lat -= y * this.map.scale / (a.y-b.y);
|
||||
};
|
||||
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Reference in New Issue