Cloudlog/assets/js/leaflet/L.Maidenhead.activators.js

210 wiersze
7.0 KiB
JavaScript

/*
* L.Maidenhead displays activated grids on the map
*/
L.MaidenheadActivators = L.LayerGroup.extend({
options: {
// Line and label color
color: 'rgba(255, 0, 0, 0.4)',
// Redraw on move or moveend
redraw: 'move',
},
initialize: function (grids, options) {
this.grids = grids;
L.LayerGroup.prototype.initialize.call(this);
L.Util.setOptions(this, options);
},
onAdd: function (map) {
this._map = map;
var grid = this.redraw(map);
this._map.on('viewreset '+ this.options.redraw, function () {
grid.redraw(map);
});
this.eachLayer(map.addLayer, map);
},
onRemove: function (map) {
// remove layer listeners and elements
map.off('viewreset '+ this.options.redraw, this.map);
this.eachLayer(this.removeLayer, this);
},
redraw: function (map) {
var d3 = new Array(20, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1 / 24, 1 / 24, 1 / 24, 1 / 24, 1 / 24, 1 / 240, 1 / 240, 1 / 240, 1 / 240, 1 / 240 / 24, 1 / 240 / 24);
var lat_cor = new Array(0, 8, 8, 8, 8, 1.7, 6, 8, 8, 8, 1.4, 2.5, 3, 3.5, 4, 4, 3.5, 3.5, 3, 1.8, 1.6);
var bounds = map.getBounds();
var zoom = map.getZoom();
var unit = d3[zoom];
var lcor = lat_cor[zoom];
var w = bounds.getWest();
var e = bounds.getEast();
var n = bounds.getNorth();
var s = bounds.getSouth();
if (zoom==1) {var c = 2;} else {var c = 0.1;}
if (n > 85) n = 85;
if (s < -85) s = -85;
var left = Math.floor(w/(unit*2))*(unit*2);
var right = Math.ceil(e/(unit*2))*(unit*2);
var top = Math.ceil(n/unit)*unit;
var bottom = Math.floor(s/unit)*unit;
this.eachLayer(this.removeLayer, this);
var grid_four = this.grids;
var grid_two = [];
function addGridTwo(element, index, array) {
if (!grid_two.includes(element.substr(0,2))) {
grid_two.push(element.substr(0,2));
}
}
grid_four.forEach(addGridTwo);
for (var lon = left; lon < right; lon += (unit*2)) {
for (var lat = bottom; lat < top; lat += unit) {
var bounds = [[lat,lon],[lat+unit,lon+(unit*2)]];
if(grid_two.includes(this._getLocator(lon,lat,map))) {
this.addLayer(L.rectangle(bounds, {className: 'grid-rectangle grid-confirmed', color: 'rgba(144,238,144, 0.6)', weight: 1, fillOpacity: 1, fill:true, interactive: false}));
}
if(grid_four.includes(this._getLocator(lon,lat,map))) {
this.addLayer(L.rectangle(bounds, {className: 'grid-rectangle grid-confirmed', color: 'rgba(144,238,144, 0.6)', weight: 1, fillOpacity: 1, fill:true, interactive: false}));
}
if (zoom < 2 || zoom > 4) {
this.addLayer(this._getLabel(lon+unit-(unit/lcor),lat+(unit/2)+(unit/lcor*c), map));
}
if (zoom < 3 ) {
this.addLayer(L.rectangle(bounds, {className: 'grid-rectangle', color: this.options.color, weight: 1, fill:false, interactive: false}));
}
if (zoom < 3 || zoom > 5) {
this.addLayer(L.rectangle(bounds, {className: 'grid-rectangle', color: this.options.color, weight: 1, fill:false, interactive: false}));
}
if (zoom < 3 || zoom > 5) {
this.addLayer(this._getLabel(lon+unit-(unit/lcor),lat+(unit/2)+(unit/lcor*c), map));
}
}
}
// Added this to print fields and field name, while still showing worked/confirmed gridsquares
if (zoom < 5 && zoom > 2) {
unit = 10;
var left = Math.floor(w / (unit * 2)) * (unit * 2);
var right = Math.ceil(e / (unit * 2)) * (unit * 2);
var top = Math.ceil(n / unit) * unit;
var bottom = Math.floor(s / unit) * unit;
for (var lon = left; lon < right; lon += (unit * 2)) {
for (var lat = bottom; lat < top; lat += unit) {
var bounds = [[lat, lon], [lat + unit, lon + (unit * 2)]];
this.addLayer(L.rectangle(bounds, {
className: 'grid-rectangle',
color: this.options.color,
weight: 1,
fill: false,
interactive: false
}));
this.addLayer(this._getLabel2(lon + unit - (unit / lcor), lat + (unit / 2) + (unit / lcor * c), map));
}
}
}
return this;
},
_getLabel: function(lon,lat, map) {
var title_size = new Array(0, 10, 14, 16, 6, 13, 14, 16, 24, 36, 12, 14, 20, 36, 60, 12, 20, 36, 60, 12, 24);
var zoom = map.getZoom();
var size = title_size[zoom]+'px';
var title = '<span class="grid-text" style="cursor: default;"><font style="color:'+this.options.color+'; font-size:'+size+'; font-weight: 900; ">' + this._getLocator(lon,lat, map) + '</font></span>';
var myIcon = L.divIcon({className: 'my-div-icon', html: title});
var marker = L.marker([lat,lon], {icon: myIcon}, clickable=false);
return marker;
},
_getLocator: function(lon,lat, map) {
var ydiv_arr=new Array(10, 1, 1/24, 1/240, 1/240/24);
var d1 = "ABCDEFGHIJKLMNOPQR".split("");
var d2 = "ABCDEFGHIJKLMNOPQRSTUVWX".split("");
var d4 = new Array(0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5);
var locator = "";
var x = lon;
var y = lat;
var precision = d4[map.getZoom()];
while (x < -180) {x += 360;}
while (x > 180) {x -=360;}
x = x + 180;
y = y + 90;
locator = locator + d1[Math.floor(x/20)] + d1[Math.floor(y/10)];
for (var i=0; i<4; i=i+1) {
if (precision > i+1) {
rlon = x%(ydiv_arr[i]*2);
rlat = y%(ydiv_arr[i]);
if ((i%2)==0) {
locator += Math.floor(rlon/(ydiv_arr[i+1]*2)) +""+ Math.floor(rlat/(ydiv_arr[i+1]));
} else {
locator += d2[Math.floor(rlon/(ydiv_arr[i+1]*2))] +""+ d2[Math.floor(rlat/(ydiv_arr[i+1]))];
}
}
}
return locator;
},
/*
Need this for the field printing, while showing worked/confirmed grids
*/
_getLabel2: function(lon,lat, map) {
var title_size = new Array(0, 10, 12, 16, 20, 26, 26, 16, 24, 36, 12, 14, 20, 36, 60, 12, 20, 36, 60, 12, 24);
var zoom = map.getZoom();
var size = title_size[zoom]+'px';
var title = '<span class="grid-text" style="cursor: default;"><font style="color:'+this.options.color+'; font-size:'+size+'; font-weight: 900; ">' + this._getLocator2(lon,lat, map) + '</font></span>';
var myIcon = L.divIcon({className: 'my-div-icon', html: title});
var marker = L.marker([lat,lon], {icon: myIcon}, clickable=false);
return marker;
},
/*
Need this for the field printing, while showing worked/confirmed grids
*/
_getLocator2: function(lon,lat, map) {
var ydiv_arr=new Array(10, 1, 1/24, 1/240, 1/240/24);
var d1 = "ABCDEFGHIJKLMNOPQR".split("");
var d2 = "ABCDEFGHIJKLMNOPQRSTUVWX".split("");
var d4 = new Array(0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5);
var locator = "";
var x = lon;
var y = lat;
var precision = d4[map.getZoom()];
while (x < -180) {x += 360;}
while (x > 180) {x -=360;}
x = x + 180;
y = y + 90;
locator = locator + d1[Math.floor(x/20)] + d1[Math.floor(y/10)];
for (var i=0; i<4; i=i+1) {
if (precision > i+1) {
rlon = x%(ydiv_arr[i]*2);
rlat = y%(ydiv_arr[i]);
if ((i%2)==0) {
locator += Math.floor(rlon/(ydiv_arr[i+1]*2)) +""+ Math.floor(rlat/(ydiv_arr[i+1]));
} else {
locator += d2[Math.floor(rlon/(ydiv_arr[i+1]*2))] +""+ d2[Math.floor(rlat/(ydiv_arr[i+1]))];
}
}
}
return locator;
},
});
L.maidenheadactivators = function (options) {
return new L.MaidenheadActivators(options);
};