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index.js
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index.js
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$(window).load(onDeviceReady)
var debug = false
var url_base = 'https://grid.my-poppy.eu/' // trailing / is important so that some QR code readers are able to read the url
var url_stats = 'https://grid.my-poppy.eu/stats.php'
var url_nominatim = "https://nominatim.openstreetmap.org/reverse?format=json"
var delta = 100; // in meters
var bea = 0; // in degrees
var invxy = 0, // 1 if inverse x & y
revy = 0 // 1 if reverse y (bottom to top instead of top to bottom)
var xlabels = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j','k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v','w', 'x', 'y', 'z'];
var ylabels = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40'];
var Nx0 = xlabels.length,
Ny0 = ylabels.length
var mycrs = null
var mysec = 0;
var WP = null;
var LG = null
var LH = null
var CM = null
var mymap = null
var map_state = 0
var map_first_view = true
var current_url = 0
var myurl = ''
var qrcode = null
var the_line = null
var sep_url = '?'
var myPhotonMarker = null
var WIDTH_LIMIT = 1049
var address_coords = null
var current_coords = null
var address_set = false
var acquiring_timeout = null
var tms = [
{ url:'', attr: 'Skobbler', subd:['1', '2', '3'], maxZoom:24, maxNativeZoom:18 },
{ url:'', attr: 'Mapbox', subd:['a', 'b', 'c'], maxZoom:24, maxNativeZoom:24 },
{ url:'', attr: 'Mapbox', subd:['a', 'b', 'c'], maxZoom:24, maxNativeZoom:24 }
]
var TL = null
var epsg_31370_str = '+lat_0=90 +lat_1=51.16666723333333 +lat_2=49.8333339 '
+'+lon_0=4.367486666666666 '
+'+x_0=150000.013 +y_0=5400088.438 '
+'+ellps=intl '
+'+proj=lcc '
+'+towgs84=-106.869,52.2978,-103.724,0.3366,-0.457,1.8422,-1.2747 '
+'+units=m '
+'+no_defs'
var editableLayers = null
var lineLayers = null
var blink_watch = null
var TYPEREF = 'master'
function onDeviceReady()
{
if ( ($(window).width() < 321) & ($(window).height() < 321) ) // small screen probably watch
{
$('.hide_for_wear').hide()
$('#mylastupdate').css('position', 'inherit').css('text-align', 'center')
}
$('.togglemap').click(toggle_map)
if ( !init() ) return false
/*if(window.applicationCache)
{
window.applicationCache.onupdateready = function(e)
{
window.alert('Une mise à jour est prête, rechargez la page pour la télécharger')
}
}*/
// ********************************************
// INITIALIZE GESTURES FOR THE MAP (HAMMER.JS)
// ********************************************
var myElement = document.getElementById('map2');
// create a manager for that element
var manager = new Hammer.Manager(myElement);
// create recognizers
var Pan = new Hammer.Pan();
var Pinch = new Hammer.Pinch();
var Rotate = new Hammer.Rotate();
// use them together
Rotate.recognizeWith([Pan]);
Pinch.recognizeWith([Rotate, Pan]);
// add the recognizers
manager.add(Pan);
manager.add(Rotate);
// subscribe to events
var currentRotation = 0, lastRotation, startRotation;
manager.on('rotatemove', function(e)
{
var diff = startRotation - Math.round(e.rotation);
currentRotation = lastRotation - diff;
mymap.setBearing(currentRotation)
});
manager.on('rotatestart', function(e)
{
lastRotation = currentRotation;
startRotation = Math.round(e.rotation);
});
manager.on('rotateend', function(e)
{
// cache the rotation
lastRotation = currentRotation;
});
if ($(window).width() < WIDTH_LIMIT)
{
make_interface_small()
}
}
function make_interface_small()
{
// adapt the interface to small screens
$('#btn-grid').html('① <i class="fa fa-pencil"></i> ' + msg.grid_short)
$('#btn-link').html('② <i class="fa fa-share-alt"></i> '+ msg.generate_short)
$('#btn-line').hide()
$('.lbr').show()
$('#btn-upload').html('① <i class="fa fa-upload"></i> ' + msg.parcours_short)
$('#btn-kml').html('③ <i class="fa fa-download"></i> ' + msg.KML_short)
$('.mapicons').css('width', '30%')
$('.my_or').hide()
}
function make_interface_large()
{
// adapt the interface to large screens
}
function init()
{
// explanation of quickgrid, privacy, disclaimer
var ret = window.confirm(msg.quickgrid_explain)
// if the user does not accept -> disconnect ; nothing is transmitted to the server
if (!ret)
{
$('body').html('<div style="text-align:center; padding-top:3em;font-weight:bold">DISCONNECTED</div>')
return false
}
// if no debugging session -> send stats to server -> only the timestamp + country (w/o 3rd party) + hash of the ip (to evaluate the number of unique visitors) are recorded
if (!debug) if (window.location.href.indexOf('my-poppy') > -1) // condition to avoid sending stats for tests
{
$.get(url_stats)
}
if (window.location.href.indexOf(sep_url) > -1) // a grid or a line is stored -- https://www.grid.my-poppy.eu?0,0,...
{
// *******************
// setup the interface
// *******************
$('#app2').hide()
$('#app').show()
$('#maptools').hide()
// *******************
// setup the map
// *******************
init_map()
$('#map2').css('height', '100%').css('position', 'fixed').css('top', '0').css('left', '0').css('right', '0').css('bottom', '0')
// *******************
// setup the events
// *******************
$('#myaddress').click(function(){get_address(current_coords)})
var s = window.location.href.split(sep_url)
s = s[1]
if ( (s.indexOf(',') == -1) & (s.indexOf(',') == -1) )
{
s = decodeURIComponent(s)
}
if (s.indexOf('lineblob') > -1) // IT IS A LINE
{
TYPEREF = 'line'
function callback(d)
{
var mylayers = L.geoJSON(d, {style: {color: '#f357a1',weight: 5}})
lineLayers.addLayer(mylayers)
var LL = mylayers.getLayers()[0]._latlngs
mycrs = new L.Proj.CRS("EPSG:999999","+proj=tmerc +lat_0="+LL[0].lat+" +lon_0="+LL[0].lng+" +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs");
the_line = build_line(LL)
show_km(LL, the_line.XY, the_line.s_sum, the_line.my_s)
}
// ***************************************
// retrieve the JSON blob & show the line
// ***************************************
var id = s.split('lineblob=')[1]
get_line(id, callback)
}
else // IT IS A GRID
{
var go = false
if (s.length > 4)
{
var x0y0
go = true
TYPEREF = 'grid'
// *******************
// decode the url
// *******************
s = s.split(',')
delta = s[2] // with of a square
bea = s[3] // bearing of the whole grid
var LAT0 = s[4] // coordinates of the top left corner of the grid
var LNG0 = s[5]
Nx0 = xlabels.length
Ny0 = xlabels.length
if (s.length > 6)
{
Nx0 = s[6] // number of squares in x
Ny0 = s[7] // number of squares in y
if (s.length > 8)
{
invxy = s[8] // inverse xy ? (figures in x, letters in y) -- 0 = false, 1 = true
revy = s[9] // reverse in y ? (bottom to top instead of top to bottom) -- 0 = false, 1 = true
}
}
// **************************************
// setup the coordinates reference system
// **************************************
if (s[0] == 0) // metric CRS, square anywhere on the world, dimensions not accurate
{
mycrs = new L.Proj.CRS("EPSG:999999","+proj=tmerc +lat_0="+LAT0+" +lon_0="+LNG0+" +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs");
x0y0 = {x:0, y:0}
}
else if (s[0] == '31370') // epsg 31370 -> lambert 72 -> works in Belgium only, perfectly metric
{
mycrs = new L.Proj.CRS('EPSG:31370', epsg_31370_str, { resolutions: [8192, 4096, 2048, 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1] })
x0y0 = mycrs.projection.project({lat:LAT0, lng:LNG0})
}
else
{
go = false
}
// *******************
// shows the grid
// *******************
if (go)
{
show_grid(x0y0, xlabels, ylabels, delta, Nx0, Ny0, bea, invxy, revy)
}
}
if (!go)
{
window.alert(msg.error_url)
return false
}
}
// *************************************************
// tells the user that busy to acquire the location
// *************************************************
$("#myupdateicon").html('<i class="fa fa-spinner fa-spin"></i>')
$("#myupdatetext").html(msg.acquiring)
$('.tofilter').addClass('filter')
// *************************************************
// after 90 seconds of the initial acquisition
// if still busy : display a message to the user : check GPS, CHECK PRIVACY, ADVISE TO USE CHROME OR SAFARI (NO MESSENGER NOR QR CODE BROWSER)
// *************************************************
if (acquiring_timeout != null)
{
clearTimeout(acquiring_timeout)
acquiring_timeout = null
}
acquiring_timeout = setTimeout(function()
{
$("#myupdatetext").html(msg.acquiring + msg.acquiring_hint)
}, 90000)
// *******************
// acquires the location
// *******************
if (WP == null) get_position()
setInterval(
function()
{
check_last_update()
if (WP == null) get_position()
},
5000)
}
else // blank map -- https://www.grid.my-poppy.eu
{
// *******************
// setup the interface
// *******************
$('#app').hide()
$('#app2').show()
$('.togglemap').hide()
// *******************
// setup the map
// *******************
init_map()
$('.fa-chevron-left').parent().parent().parent().hide()
$('.fa-qrcode').parent().parent().parent().hide()
// *******************
// setup the events
// *******************
$('#btn-line').on('click', create_line )
$('#btn-grid').on('click', create_grid )
$('#btn-link').on('click', function(){ myurl_show(myurl) } )
$('#btn-kml').on('click',
function()
{
var kml = tokml(LH.toGeoJSON());
download(kml, 'poppy_quickgrid_' + Date.now() + '.kml', "text/plain");
})
}
if ($(window).width() < WIDTH_LIMIT)
{
$('.leaflet-control-easyPrint').hide()
$('.eb_to_hide').parent().parent().parent().hide()
}
return true
}
function myurl_show(myurl)
{
if (myurl == "")
{
window.alert(msg.link_explain);
return
}
$('#qrcode-wrap').css('top', $(window).height()/2-325/2).css('left', $(window).width()/2-275/2)
$("#qrcode-wrap").fadeIn()
$('#qrcode-text').text(myurl)
// if current == polyline
// store_line(editableLayers[0])
// + callback to show in the QR code
if (qrcode != null)
{
qrcode.clear()
qrcode.makeCode(myurl)
}
else
{
qrcode = new QRCode("qrcode",
{
text: myurl,
width: 175,
height: 175,
colorDark : "#000000",
colorLight : "#ffffff",
correctLevel : QRCode.CorrectLevel.L
});
}
}
function mobileAndTabletcheck()
{
// returns true if browser is mobile
//from : https://stackoverflow.com/questions/11381673/detecting-a-mobile-browser
var check = false;
(function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera);
return check;
};
var current_feature = null
function create_line(e)
{
current_feature = 'polyline'
if (mobileAndTabletcheck() )
{
window.alert(msg.computer_needed)
}
else
{
window.alert(msg.line_explain);
//mymap.editTools.startPolyline(); // Leaflet.Editable
new L.Draw.Polyline(mymap, {shapeOptions: {color: '#f357a1',weight: 5 }}).enable() // Leaflet.Draw
}
}
function create_grid(e)
{
current_feature = 'rectangle'
if (mobileAndTabletcheck())
{
window.alert(msg.grid_explain)
mymap.on('dblclick', function(e)
{
delta = window.prompt(msg.square_size)
mycrs = new L.Proj.CRS("EPSG:999999","+proj=tmerc +lat_0="+e.latlng.lat+" +lon_0="+e.latlng.lng+" +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs");
var X0Y0 = mycrs.projection.project(e.latlng)
bea = mymap.getBearing()
show_grid(X0Y0, xlabels, ylabels, delta, xlabels.length, ylabels.length, bea, invxy, revy)
myurl = url_base + sep_url + Math.round(X0Y0.x) + ',' + Math.round(X0Y0.y) + ',' + delta + ',' + bea + ',' + e.latlng.lat + ',' + e.latlng.lng +',' + xlabels.length +',' + ylabels.length
mymap.off('dblclick')
})
}
else
{
window.alert(msg.grid_explain_draw);
if (LG != null)
{
mymap.removeLayer(LG)
}
//mymap.editTools.startRectangle(); // Leaflet.Editable
new L.Draw.Rectangle(mymap, {shapeOptions: {color: '#FFF'}}).enable(); // Leaflet.Draw
}
}
function toggle_map()
{
$('.togglemap').toggle()
$('#app').toggle()
$('#app2').toggle()
if (map_state == 0)
{
setTimeout(function(){$('#map2').css('position', 'fixed').css('top', '0').css('left', '0').css('right', '0').css('bottom', '0').css('height', '100%')}, 500)
mymap.invalidateSize()
get_position()
if (LG != null) mymap.fitBounds(LG.getBounds())
else if (lineLayers != null) mymap.fitBounds(lineLayers.getBounds())
if (map_first_view)
{
currentRotation = lastRotation = bea
mymap.setBearing(currentRotation)
map_first_view = false
}
}
map_state = 1-map_state
}
function myPhotonHandler(e)
{
var LL = [e.geometry.coordinates[1], e.geometry.coordinates[0]]
if (myPhotonMarker != null) mymap.removeLayer(myPhotonMarker)
myPhotonMarker = new L.CircleMarker(LL, {color: 'red',fillOpacity:.75,weight: 1})
myPhotonMarker.addTo(mymap)
mymap.setView(LL, 13);
}
function init_map()
{
$('#map2').height($(window).height() - $("#app2").height())
var options =
{
zoomControl: false,
rotate: true,
editable: true
}
if (!mobileAndTabletcheck())
{
options.zoomDelta = .25;
options.zoomSnap = .25;
}
mymap = L.map('map2', options).setView([50, 4], 13);
mymap.locate({setView : true, maxZoom:17});
L.control.scale().addTo(mymap);
L.easyButton('fa-chevron-left', toggle_map, 'back', 'topleft').addTo( mymap );
L.control.photon(
{
placeholder: msg.adress,
position: 'topleft',
onSelected: myPhotonHandler,
}).addTo(mymap);
TLayer_set()
L.control.zoom({position:'bottomright'}).addTo(mymap);
L.easyButton('fa-rotate-left', function(btn, map){ mymap.setBearing(mymap.getBearing()-2) }, 'rotate map', 'topright').addTo( mymap );
L.easyButton('fa-rotate-right', function(btn, map){ mymap.setBearing(mymap.getBearing()+2) }, 'rotate map', 'topright').addTo( mymap );
var animatedToggle = L.easyButton(
{
states: [ {
stateName: 'to-terrain',
icon: '<img height="22" src="img/mountain.svg">',
title: 'change basemap to terrain',
onClick: function(btn, map)
{
++current_url
current_url = current_url%tms.length
mymap.removeLayer(TL)
TLayer_set()
btn.state('to-roads-1');
}
},
{
stateName: 'to-roads-1',
icon: 'fa-road',
title: 'change basemap to roads',
onClick: function(btn, map)
{
++current_url
current_url = current_url%tms.length
mymap.removeLayer(TL)
TLayer_set()
btn.state('to-roads-2');
}
},
{
stateName: 'to-roads-2',
icon: 'fa-road',
title: 'change basemap to roads',
onClick: function(btn, map)
{
++current_url
current_url = current_url%tms.length
mymap.removeLayer(TL)
TLayer_set()
btn.state('to-terrain');
}
},
]
}) // , 'topright'
animatedToggle.addTo( mymap );
L.easyButton('fa-info-circle', function(btn, map)
{
window.alert( "Developed by Poppy, 2018\n"
+"contact: [email protected]\n"
+"web: www.my-poppy.eu & blog.my-poppy.eu\n"
+"github: github.com/ccloquet/quickgrid\n"
+"\nCrédits:\n"
+"font-awesome-4.7.0 [github.com/FortAwesome/Font-Awesome/blob/master/LICENSE.txt]\n"
+"leaflet-1.3.1 fork by va2ron1 [github.com/va2ron1/Leaflet/blob/master/LICENSE]\n"
+"Leaflet.EasyButton-1.1.1 [github.com/CliffCloud/Leaflet.EasyButton/blob/master/LICENSE]\n"
+"Leaflet.Omnivore-0.3.3 [https://github.com/mapbox/leaflet-omnivore/blob/master/LICENSE]\n"
+"hammer-2.0.8.js [github.com/hammerjs/hammer.js/blob/master/LICENSE.md]\n"
+"Proj4Leaflet [github.com/kartena/Proj4Leaflet/blob/master/LICENSE]\n"
+"jquery-2.1.1 [github.com/jquery/jquery/blob/master/LICENSE.txt]\n"
+"leaflet-easyPrint [github.com/rowanwins/leaflet-easyPrint/blob/gh-pages/LICENSE]\n"
+"tokml.js [github.com/mapbox/tokml]\n"
+"download2.js [danml.com/download.html]\n"
+'Mountain icon made by www.freepik.com from flaticon.com is licensed by CC 3.0 BY (creativecommons.org/licenses/by/3.0)'
)
}, 'credits', 'bottomleft').addTo( mymap );
L.easyButton('fa-qrcode', function()
{
myurl_show(window.location.href)
}, 'qr code', 'bottomleft').addTo( mymap );
L.easyButton('fa-download eb_to_hide', function()
{
var kml = tokml(LH.toGeoJSON());
download(kml, 'poppy_quickgrid_' + Date.now() + '.kml', "text/plain");
}, 'download KML', 'bottomleft').addTo( mymap );
L.easyPrint(
{
title: 'Print',
position: 'bottomleft',
sizeModes: ['Current'],
}).addTo(mymap);
// set up editable layers
editableLayers = L.featureGroup().addTo(mymap)
lineLayers = L.featureGroup().addTo(mymap)
LH = L.featureGroup()
// Leaflet.Editable <<<
// 1. polyline : should store only when finished
// 2. polyline : should clean the old decorations when editing
// 3. rectangle : on create, fires both events...
// 4. rectangle : should find a better way to ask the user for grid division
// mymap.on('editable:drawing:commit', function(e){ set_new_editable_layer(e.layer, current_feature) })
// mymap.on('editable:vertex:dragend', function(e){ set_new_editable_layer(e.layer, current_feature) })
// Leaflet.Draw
mymap.on(L.Draw.Event.DRAWSTART, clear_editable_layers)
mymap.on(L.Draw.Event.CREATED, function(e){ set_new_editable_layer(e.layer, current_feature) });
var popup = null
editableLayers.on('mouseover', function(e)
{
var my_coords = L.latLng(e.latlng), idx
switch(TYPEREF)
{
/*case 'grid': g = getSquarePoint(mycrs, my_coords, delta, bea, xlabels, ylabels)
idx = g.mysquare
break;*/
case 'line': if (the_line != null)
{
g = getKm(mycrs, my_coords, the_line.XY, the_line.my_s)
idx = g.km
}
popup = L.popup()
.setLatLng(e.latlng)
.setContent(idx)
.openOn(mymap);
break;
}
})
editableLayers.on('mouseout', function(e)
{
if (popup != null) popup.closePopup();
popup = null
})
}
function clear_editable_layers()
{
myurl = ''
for (var x in editableLayers._layers)
{
if (editableLayers._layers.hasOwnProperty(x))
{
mymap.removeLayer(editableLayers._layers[x])
}
}
// should add
// if relevant :
// mymap.removeLayer(LG)
// mymap.removeLayer(LH)
}
function set_new_editable_layer(layer, type)
{
var LL = layer._latlngs
switch(type)
{
case 'polyline':
// 1. build local CRS
mycrs = new L.Proj.CRS("EPSG:999999","+proj=tmerc +lat_0="+LL[0].lat+" +lon_0="+LL[0].lng+" +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs");
editableLayers.addLayer(layer)
LH = L.featureGroup()
LH.addLayer(layer)
// 2. build & draw the array of segments lengths
var my_line = build_line(LL)
show_km(LL, my_line.XY, my_line.s_sum, my_line.my_s)
// 3. convert to geoJSON and store
store_line(layer)
break;
case 'rectangle':
//LL = LL[0] // Leaflet.Editable
var delta_list = [1, 1.5, 2,2.5,3,5,7.5,10,15,20,25,30,50,75,100,150,200,250,300,500,750,1000, 1500, 2000, 2500, 3000, 5000, 7500, 10000]
var LL_P_1 = 0, LL_P_3 = 0, j = -1, k = 1
var b = mymap.getBearing()
var s = 1
if ( ((b > 90) & (b < 270)) | (b < -90) & (b > -270) ) s = -1
while ( ! ((s*LL_P_1.x > 0) & (s*LL_P_3.y < 0)) ) // find the right orientation (otherwise, if start drawing from lower right -> does not display the grid correctly)
{
// iterate clockwise & counter clockwise
if (j == 4) {j = 0; k = -1}
++j
// 1. build local CRS
mycrs = new L.Proj.CRS("EPSG:999999","+proj=tmerc +lat_0="+LL[mod(j,4)].lat+" +lon_0="+LL[mod(j,4)].lng+" +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs");
LL_P_1 = mycrs.projection.project(LL[mod(j+k*1,4)])
LL_P_3 = mycrs.projection.project(LL[mod(j+k*3,4)])
}
var dx = Math.ceil(Math.sqrt(LL_P_1.x*LL_P_1.x + LL_P_1.y*LL_P_1.y)) // size in x
var dy = Math.ceil(Math.sqrt(LL_P_3.x*LL_P_3.x + LL_P_3.y*LL_P_3.y)) // size in y
editableLayers.addLayer(layer)
var my_delta = [] // suggested grid sizes
for (var i=0; i<delta_list.length; ++i)
{
if ( (delta_list[i] >= dx/xlabels.length) & (delta_list[i] < dx/4)) my_delta.push({delta:delta_list[i], Nx:Math.ceil(dx/delta_list[i]), Ny:Math.ceil(dy/delta_list[i])})
}
var txt = msg.grid_choose+'\n\n'
for (var i=0; i<my_delta.length; ++i)
{
txt += '[' + String.fromCharCode(65+i) + '] ' + my_delta[i].Nx + ' x ' + my_delta[i].Ny + ' (' + my_delta[i].delta + ' m)\n'
}
txt += msg.perso_size_between+Math.ceil(dx/xlabels.length)+' '+msg.and+' '+Math.floor(dx/4)+' m) :'
var delta = null, Nx, Ny
var ret = window.prompt(txt)
if (ret == null) return false
ret = ret.toUpperCase()
var J = ret.charCodeAt()-65
if ($.isNumeric(ret))
{
delta = ret
Nx = Math.ceil(dx/ret)
Ny = Math.ceil(dy/ret)
}
else if ((J >= 0) & (J <my_delta.length))
{
delta = my_delta[J].delta
Nx = my_delta[J].Nx
Ny = my_delta[J].Ny
}
if (delta != null)
{
bea = mymap.getBearing()
show_grid({x:0, y:0}, xlabels, ylabels, delta, Nx, Ny, bea, invxy, revy)
myurl = url_base + sep_url + '0,0,' + delta + ',' + bea + ',' + LL[mod(j,4)].lat + ',' + LL[mod(j,4)].lng + ',' + Nx + ',' + Ny
}
break;
}
}
function mod(n, m) {
return ((n % m) + m) % m;
}
function TLayer_set()
{
TL = L.tileLayer(tms[current_url].url,
{
attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors + '+tms[current_url].attr+', <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>',
subdomains: tms[current_url].subd,
maxZoom: tms[current_url].maxZoom,
maxNativeZoom: tms[current_url].maxNativeZoom,
opacity: 0.5,
}).addTo(mymap);
}
function show_grid(latlng_31370, xlabels, ylabels, delta, Nx, Ny, b, invxy, revy)
{
// lowlevel grid
var G = [], H = [],
cb = Math.cos(b*Math.PI/180),
sb = Math.sin(b*Math.PI/180),
x0 = parseFloat(latlng_31370.x), // ! parseFloat ! otherwise string concat !!
y0 = parseFloat(latlng_31370.y)
for(var i=0; i<Nx; ++i)
{
for(var j=0; j<Ny; ++j)
{
var xy_center = {x: x0 + cb * (i+.5) * delta + sb * (j+.5) * delta , y: y0 + sb * (i+.5) * delta - cb * (j+.5) * delta}
var LL = mycrs.projection.unproject(xy_center) // center of the square
var LL_TL = mycrs.projection.unproject({x: x0 + cb*(i+0)*delta + sb*(j+0) * delta, y: y0 + sb*(i+0)*delta - cb*(j+0) * delta}) // top left
var LL_TR = mycrs.projection.unproject({x: x0 + cb*(i+1)*delta + sb*(j+0) * delta, y: y0 + sb*(i+1)*delta - cb*(j+0) * delta}) // top right
var LL_BL = mycrs.projection.unproject({x: x0 + cb*(i+0)*delta + sb*(j+1) * delta, y: y0 + sb*(i+0)*delta - cb*(j+1) * delta}) // bottom left
var LL_BR = mycrs.projection.unproject({x: x0 + cb*(i+1)*delta + sb*(j+1) * delta, y: y0 + sb*(i+1)*delta - cb*(j+1) * delta}) // bottom right
var lat_lngs = [LL_TL, LL_TR, LL_BR, LL_BL, LL_TL]
var myname = ''
var newj = j
if (revy == 1) newj = Ny - 1 - j
if (invxy == 1)
{
myname = xlabels[newj].toUpperCase() + ylabels[i]
}
else
{
myname = xlabels[i].toUpperCase()+ylabels[newj];
}
if ( ( (i%2==0) & (j%2==0) ) )
{
var myIcon = L.divIcon({className:'emptyicon', html: myname});
var marker = L.marker(LL, {icon: myIcon})
marker.properties = {};
//marker.properties.Name = "Test"
G.push(marker)
H.push(L.marker(LL, {icon: myIcon, name: myname })); // to display the names
}
if ( (i == 0) | (j == 0 ) )
{
var myIcon = L.divIcon({className:'boldicon', html: myname});
G.push(L.marker(LL, {icon: myIcon}))
H.push(L.marker(LL, {icon: myIcon, name: myname })); // to display the names
}
// one idea to draw squares ... but they are not square given the coordinate transsformation
// var circle = new L.Circle(LL, delta/2);
// G.push(new L.Rectangle(circle.getBounds(), {color: 'white',fillOpacity:0,weight: 1}));
// center of the squares
//G.push(new L.CircleMarker(LL, {color: 'white',fillOpacity:.5,weight: 1}));
G.push(new L.Polyline(lat_lngs, {color: 'darkgray',fillOpacity:0,weight: 1}));
H.push(new L.Polyline(lat_lngs, {color: 'darkgray',fillOpacity:0,weight: 1})); // name might be here, but then misplaced in Google Maps for instance (QGIS would be OK)
}
}
// High level grid delienation
var LL_TL = mycrs.projection.unproject({x: x0, y: y0}) // top left
var LL_TR = mycrs.projection.unproject({x: x0 + cb * Nx * delta, y: y0 + sb * Nx * delta}) // top right
var LL_BL = mycrs.projection.unproject({x: x0 + sb * Ny * delta, y: y0 - cb * Ny * delta}) // bottom left
var LL_BR = mycrs.projection.unproject({x: x0 + cb * Nx * delta + sb * Ny * delta, y: y0 + sb * Nx * delta - cb * Ny * delta}) // bottom right
var lat_lngs = [LL_TL, LL_TR, LL_BR, LL_BL, LL_TL]
G.push(new L.Polyline(lat_lngs, {color: 'yellow', fillOpacity:0,weight: 3}));
LG = L.featureGroup(G).addTo(mymap) // to draw
LH = L.featureGroup(H) // to download
}
function check_last_update()
{
var e = new Date();
var mynewsec = e.getTime()/1000;
if ((mysec > 0) & ( (mynewsec - mysec) > 35 ))
{
// GPS ERROR CASE
$("#myupdateicon").html('<i style="color:yellow" class="blink fa fa-exclamation-triangle"></i>')
$("#myupdatetext").html('<span style="color:yellow" class="blink">'+msg.update_error+'</span>' )
start_blink()
navigator.geolocation.clearWatch(WP)
WP = null
$('.tofilter').addClass('filter')
}
}
function get_address(coords)
{
if (coords == null) return false;
$('#myaddress_0').hide()
$('#myaddress_2').show(); $('#myaddress_2').text(msg.waiting)
$('#myaddress_1').show(); $('#myaddress_1').text('⏳')
$.get(url_nominatim + '&lon=' + coords.lng + '&lat=' + coords.lat,
function(e)
{
var road = msg.unknown, city = ""
if (e != null) if (e.address != null)
{
var f = e.address
road = ""
if (f.road != null) road += f.road + " "
if (f.house_number != null) road += f.house_number
if (f.village != null) city = f.village
else if (f.town != null) city = f.town
else if (f.suburb != null) city = f.suburb
$('#myaddress_1').text( '🕓 ' + current_time_hh_mm(new Date()) + ' ▷ ' + msg.close_to)
$('#myaddress_2').text(road + ', ' + city )
address_set = true
address_coords = coords
console.log(road, city, e)
}
}, 'json')
}
function get_position()
{
var mytimeout = 60000, g
current_coords
WP = navigator.geolocation.watchPosition(
function(p)
{
var my_coords = {lng:p.coords.longitude ,lat: p.coords.latitude}
current_coords = my_coords
if (address_set)
{
if (mymap.distance(my_coords, address_coords) > 10)
{
$('#myaddress_0').show()
$('#myaddress_1').hide(); $('#myaddress_1').text('')
$('#myaddress_2').hide(); $('#myaddress_2').text('')
address_set = false
address_coords = null
}
}
if (map_state == 1)
{
if (CM != null) mymap.removeLayer(CM)
CM = L.circleMarker( my_coords )
CM.addTo(mymap)
}
switch(TYPEREF)
{
case 'grid': g = getSquarePoint(mycrs, my_coords, delta, bea, xlabels, ylabels)
$('#mysquare').html(g.mysquare)
break;
case 'line': if (the_line != null)
{
g = getKm(mycrs, my_coords, the_line.XY, the_line.my_s)
$('#mysquare').html(g.km)
}
break;
}
if (p.coords.accuracy > delta / 3)
{
// if the accuracy (radius of the 95%-confidence circle where the Lat/Lon lies) is larger than delta, then display the accuracy in bold yellow
$('#myaccuracy').addClass('inaccurate')
}
else
{
$('#myaccuracy').removeClass('inaccurate')
}
$('#myaccuracy').html('± ' + Math.round(p.coords.accuracy) + " m" )
var mylat = Math.round(p.coords.latitude*10000)/10000
var mylng = Math.round(p.coords.longitude*10000)/10000
if (mylat < 0) mylat = (-mylat) + '° S'
else mylat += '° N'
if (mylng < 0) mylng = (-mylng) + '° E'
else mylng += '° W'
$('#mywgs84').html(mylat + ', ' + mylng)
var d = new Date(p.timestamp);
$("#myupdateicon").html('<i class="fa fa-clock-o"></i>')
$("#myupdatetext").html(msg.update+' ' + d.getDate() + "/" + (d.getMonth() +1) + "/" + d.getFullYear() + " " + current_time_hh_mm(d) + ":" + (d.getSeconds() < 10 ? '0' + d.getSeconds() : d.getSeconds()) )
// clear acquiring_timeout that was set up to warn the user in case of initial issues with GPS/PRIVACY/BROWSER
if (acquiring_timeout != null)
{